Diagram sections — 31 (100 total)
AIR CONDITIONING ANTI-LOCK BRAKES ANTI-THEFT BODY CONTROL MODULES COMPUTER DATA LINES COOLING FAN CRUISE CONTROL DEFOGGERS ELECTRONIC POWER STEERING ENGINE PERFORMANCE EXTERIOR LIGHTS GROUND DISTRIBUTION HEADLIGHTS HORN INSTRUMENT CLUSTER INTERIOR LIGHTS MEMORY SYSTEMS NAVIGATION POWER DISTRIBUTION POWER DOOR LOCKS POWER MIRRORS POWER SEATS POWER TOP/SUNROOF POWER WINDOWS RADIO SHIFT INTERLOCK STARTING/CHARGING SUPPLEMENTAL RESTRAINTS TRANSMISSION WARNING SYSTEMS WIPER/WASHER
AIR CONDITIONING Automatic A/C Wiring Diagram (1 of 3) for Jeep Grand Cherokee Overland 2008 List of elements for Automatic A/C Wiring Diagram (1 of 3) for Jeep Grand Cherokee Overland 2008: 75 (left rear 87a A/c heater control A114 Blower motor (right side of hvac unit) Blower motor relay Blower mtr gnd Blower mtr power Blower mtr rly out C115 C121 C139 C161 C21 C255 C266 C268 C55 C56 C61 C66 C68 C75 C939 Can b bus (+) Can b bus (-) Computer data lines system D54 D55 Defogger rly ctrl Drv panel lamps Evaporator temp sens sig Evaporator temperature sensor (left side of hvac unit) F921 Front blower control Front blower ctrl Front blower power module (right side of hvac unit) Front mode door common drv Front mode door drv Fuse 10 10a Fuse 11 40a Fused b (+) Fused run rly out G139 G200 (near breakout to data link connector) G39 G939 Ground Hot at all times Hot w/ run relay energized Interior lights system Junction block (left side of dash) Left blend door common drv Left blend door drv Of engine compt) g100 Power distribution center (left side of engine compt) Rear mode door actuator (center of hvac unit) Rear mode door common drv Rear mode door drv Rear window defogger relay Recirculation door common drv Recirculation door drv Right blend door actuator (center of hvac unit) Right blend door common drv Right blend door drv S136 S204 Sens gnd Sun sens 1 sig Sun sens 2 sig Sun sens return Sun sens rtn Sun sensor (top center of dash) Z134 Z906 Automatic A/C Wiring Diagram (2 of 3) for Jeep Grand Cherokee Overland 2008 List of elements for Automatic A/C Wiring Diagram (2 of 3) for Jeep Grand Cherokee Overland 2008: 61 (left rear of engine compt) g100 (left side of engine compt) g101 (left side of engine compt) g102 (left side of engine compt) integrated power module 3.0l 3.0l/ 4.7l 4.7l/5.7l/ 6.1l 5.7l 5.7l/ 6.1l 6.1l 87a A/c clutch relay A/c compressor clutch (4.7l: top front of engine) (5.7l/6.1l: lower left front of engine) A/c pressure sig A/c pressure transducer (right front of engine compt) A916 C18 Can c bus (+) Can c bus (-) Computer data lines system D64 D65 F891 Fan rly ctrl Fcm sens return Front control module Front mode door actuator (left side of hvac unit) Fuse 10a Fuse 15a Fuse 20a Fuse 25a Fuse 50a Fused b (+) Ground High speed fan rly out Hot at all times Hot in on or start Hot w/ auto shut down relay energized Hydraulic cooling fan module (5.7l/3.0l) (left side of engine compt) Ipm Junction block (left side of dash) K173 Left blend door actuator (left side of hvac unit) Low speed fan rly out N23 N24 Power distribution center (left side of engine compt) Radiator fan ctrl Radiator fan high relay (4.7l) Radiator fan low relay (4.7l) Radiator fan solenoid ctrl Radiator fan/motor assembly (4.7l) (on fan module, behind radiator) Recirculation door actuator (right side of hvac unit) Red Red/ tan S106 S125 S128 (3.0l/ 5.7l) S151 (in headlamp & dash harness) S202 (premium) Z823 Automatic A/C Wiring Diagram (3 of 3) for Jeep Grand Cherokee Overland 2008 List of elements for Automatic A/C Wiring Diagram (3 of 3) for Jeep Grand Cherokee Overland 2008: 43 (left side of engine compt) integrated power module 3.0l 4.7l/5.7l/ 6.1l A/c clutch relay control C13 Cabin heater Can c bus (+) Can c bus (-) Computer data lines system D64 D65 Ect signal Engine control module Engine controls system Engine coolant temperature sensor Engine coolant temperature sensor (4.7l: top front of engine) (5.7l/6.1l: left front of engine) Front control module Fuse 25a Fuse 50a G202 Hot at all times Hot w/ auto shut down relay energized Ipm K125 K222 K360 K361 K363 K900 Power distribution center (left side of engine compt) Powertrain control module (right rear of engine compt) Ptc 1 relay (3.0l) Ptc 2 relay (3.0l) Ptc 3 relay (3.0l) Ptc 3 rly ctrl Red Red/ tan Rly ctrl S141 (5.7l: right rear of engine) (4.7l: right side of engine) S151 (in headlamp & dash harness) Sens gnd Sens sig Sensor ground Manual A/C Wiring Diagram (1 of 2) for Jeep Grand Cherokee Overland 2008 List of elements for Manual A/C Wiring Diagram (1 of 2) for Jeep Grand Cherokee Overland 2008: 66 (in headlamp & dash harness) s198 (left rear 87a A/c heater control A/c sw sense A/c sw sns Blower high speed Blower low speed Blower m1 speed Blower m2 speed Blower motor (right side of hvac unit) Blower motor relay Blower motor resistor (right side of hvac unit) Blower sw position sig C115 C121 C139 C21 C221 C255 C266 C268 C41 C55 C66 C68 C70 C71 C72 C73 C939 Cluster Defogger rly ctrl Dimmer indicator sig Dimmer sig ind Drv panel lamps E16 Evaporator temp sens sig Evaporator temperature sensor (left side of hvac unit) F921 Front mode door common drv Front mode door drv Fuse 10 10a Fuse 11 40a Fused run rly out G200 (near breakout to data link connector) Ground Hot at all times Hot w/ run relay energized Interior lights system Junction block (left side of dash) Left blend door common drv Left blend door drv Of engine compt) g100 Power distribution center (left side of engine compt) Rear mode door common drv Rear mode door drv Rear window defogger relay Recirculation door actuator (right side of hvac unit) Recirculation door common drv Recirculation door drv S136 S204 Sens gnd Z134 Z906 Manual A/C Wiring Diagram (2 of 2) for Jeep Grand Cherokee Overland 2008 List of elements for Manual A/C Wiring Diagram (2 of 2) for Jeep Grand Cherokee Overland 2008: 66 (3.0l) engine coolant temperature sensor (left rear of engine compt) g100 3.0l 3.0l/ 3.7 3.7l/6.1l 6.1l 87a A/c clutch relay A/c clutch relay control A/c compressor clutch (3.7l: top front of engine) (6.1l: lower left front of engine) A916 C13 Can c bus (+) Can c bus (-) Computer data lines system D64 D65 Ect signal Engine control module Engine controls system Engine coolant temperature sensor (3.7l: top front of engine) (6.1l: left front of engine) Fan rly ctrl Front control module Front mode door actuator (left side of hvac unit) Fuse 10a Fuse 20a Fuse 25a Fuse 50a Fused b (+) G101 (left side of engine compt) G102 (left side of engine compt) Ground High radiator fan relay (3.7l) High speed fan rly out Hot at all times Hot in on or start Hot w/ auto shut down relay energized Hydraulic cooling fan module (3.0l) (left side of engine compt) Integrated power module (left side of engine compt) Ipm Junction block (left side of dash) K173 K222 K900 Left blend door actuator (left side of hvac unit) Low radiator fan relay (3.7l) Low speed fan rly out N23 N24 Power distribution center (left side of engine compt) Powertrain control module (right rear of engine compt) Radiator fan solenoid ctrl Radiator fan/motor assembly (3.7l) (on fan module, behind radiator) Rear mode door actuator (center of hvac unit) Red Red/ tan Rly ctrl S106 S125 S128 (3.0l/ 5.7l) S141 S151 (in headlamp & dash harness) Sens gnd Sens sig Sensor ground Z823
ANTI-LOCK BRAKES Anti-lock Brakes Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Anti-lock Brakes Wiring Diagram for Jeep Grand Cherokee Overland 2008: 71 (left rear of engine compt) (left rear of engine compt) g100 A107 A200 Anti-lock brakes module B15 B20 Brake fluid Brake fluid level sensor (left rear of engine compt) Brake lamp Bus (+) Bus (-) Can c Can c bus (+) Can c bus (-) Computer data lines system D464 D465 D64 D65 Dynamic sens gnd Dynamic sens high data link Dynamic sens low data link Dynamics sensor (esp) (behind right front seat) Engine control module (3.0l) Exterior lights system F943 Front control module (left side of engine compt) Fuse 10a Fuse 15a Fuse 30a Fused b(+) Fused ign sw out G100 (left rear of engine compt) G94 Ground Hot at all times Hot in run or start Junction block (left side of dash) L50 Left front abs wheel speed sensor (left front of engine compt) Left rear abs wheel speed sensor (under left rear of vehicle) Level sw c1 Lf wheel speed sens sig Lf wheel speed sens sply Lr wheel speed sens sig Lr wheel speed sens sply Power distribution center (left side of engine compt) Powertrain control module (except 3.0l) (right rear of engine compt) Rf wheel speed sens sig Rf wheel speed sens sply Right front abs wheel speed sensor (right front of engine compt) Right rear abs wheel speed sensor (under right rear of vehicle) Rr wheel speed sens sig Rr wheel speed sens sply S101 (in headlamp & dash harness) S129 S134 (3.7l/3.0l) Sens Sens gnd Sens high Sens low Sens sply Sig Stop lamp switch (lower left side of dash) Sw out Tan Tan/ red Tan/red Z107 Z127
ANTI-THEFT Anti-theft Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Anti-theft Wiring Diagram for Jeep Grand Cherokee Overland 2008: 64 (behind passenger seat) g300 (left side of dash) (lower center of liftgate) flip-up glass latch (near left side of driver seat) g303 (rear of left rear door) (rear of left rear door) g301 87a Can b bus (+) Can b bus (+) lf door ajar sw sens c2 Can b bus (+) rf door ajar sw sens c2 Can b bus (-) Cluster Computer data lines system D54 D55 Door lock relay Door lock rly ctrl Door unlock rly ctrl Driver door latch (rear of driver door) Driver door module (rear center of driver's door) Driver door unlock relay Drv door unlock rly ctrl Flip-up glass ajar sw sens Flip-up glass relay Flip-up glass rly ctrl Front control module Fuse 15a Fuse 20a Fused b(+) G100 (left rear of engine compt) G103 (right side of engine compt) G300 (behind passenger seat) G301 G303 (near left side of driver seat) G74 G75 Hood ajar sw sns Hood ajar switch Horn rly ctrl Horns system Hot at all times Integrated power module (left side of engine compt) Ipm Junction block Left rear door latch (left rear door) Liftgate ajar sw sens Liftgate door latch Lr door ajar sw sens Passenger door latch (in passenger door) Passenger door module Passenger door unlock relay Rear window wiper motor (lower center of liftgate) Right rear door latch (right rear door) Rr door ajar sw sens S111 S136 S313 (below driver seat) S314 (below driver seat) S318 S320 S341 S349 S352 (lower center of liftgate) S353
BODY CONTROL MODULES
COMPUTER DATA LINES Computer Data Lines Wiring Diagram (1 of 2) for Jeep Grand Cherokee Overland 2008 List of elements for Computer Data Lines Wiring Diagram (1 of 2) for Jeep Grand Cherokee Overland 2008: 54 (in headlamp & dash harness) (in headlamp & dash harness) s104 (in headlamp & dash harness) s105 (left rear of engine comp) g100 (near breakout for instrument cluster) s217 (near breakout for instrument panel power outlet) s215 (not used) c312 3.0l A/c heater control (automatic a/c) A108 Antilock brakes module (left rear of engine compt) Can b bus (+) Can b bus (-) Can c (+) Can c (-) Can c bus (+) Can c bus (-) Cluster D54 D55 D64 D65 D71 D72 Data link connector (lower left side of dash) Engine control module Except 3.0l Final drive control module (rfe) (below left rear seat) Front control module (left side of engine compt) Fuse 10a Hands free module (right kick panel) Hot at all times Junction block (left side of dash) Lin bus Lower bank switch Occupant restraint controller module (below center console) Park assist module (if equipped) (below left rear seat) Powertrain control module (right rear of engine compt) Radio Right high intensity discharge lamp S102 S103 (in headlamp & dash harness) S206 (near breakout for instrument cluster) S214 (near breakout for instrument panel power outlet) S216 (near breakout for instrument cluster) S218 (on steering wheel) S228 Shift lever assembly (base of shift lever) Steering angle sensor (w/ esp) Steering control module (at steering wheel) Transmission control module (nag1) (below left side of dash) Upper bank switch Wireless ignition node Z11 Computer Data Lines Wiring Diagram (2 of 2) for Jeep Grand Cherokee Overland 2008 List of elements for Computer Data Lines Wiring Diagram (2 of 2) for Jeep Grand Cherokee Overland 2008: 31 (below driver seat) s309 (info not available) (rear of center Base Base w/ sunroof Base w/o sunroof C332 C387 Can b bus (+) Can b bus (-) Console) D54 D55 Driver door module (rear center of driver's door) Electronic overhead module Except base Except base w/ sunroof Except base w/o sunroof Heated seat module (below passenger seat) Inside rearview mirror Memory seat module (below driver seat) Monitor/dvd media system Passenger door module Radio amplifier (premium audio) (left rear cargo compt floor) Rain sensor (front of headliner) S308 (below driver seat) S368 (left rear of headliner) S369 (left rear of headliner) Sunroof motor/module (on sunroof assembly) W/ sunroof W/o sunroof
COOLING FAN Cooling Fan Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Cooling Fan Wiring Diagram for Jeep Grand Cherokee Overland 2008: 52 (left rear of engine compt) (left rear of engine compt) g100 87a A209 A916 Can c bus (+) Can c bus (-) Computer data lines system D64 D65 Ect signal Engine control module (3.0l) Engine coolant temperature sensor (3.0l) Engine coolant temperature sensor (except 3.0l) (3.7l/4.7l: top front of engine) (5.7l/6.1l: left front of engine) F942 Fan ctrl Front control module Fuse 10a Fuse 20a Fuse 23 50a Fused b (+) G100 Ground Hi rly ctrl High speed fan rly out Hot at all times Hot w/ run run start relay energized Hydraulic cooling fan module (5.7l/3.0l) (left side of engine compt) Ign sw output Integrated power module (left side of engine compt) Ipm Junction block (left side of dash) K173 K222 K900 Lo rly ctrl Low speed fan rly out N23 N24 Power distribution center (left side of engine compt) Powertrain control module (except 3.0l) (right rear of engine compt) Radiator fan high relay (3.7l/4.7l) Radiator fan low relay (3.7l/4.7l) Radiator fan solenoid ctrl Radiator fan/motor assembly (3.7l/4.7l) (on fan module, behind radiator) Red S106 S128 S141 (4.7l: right side of engine) (5.7l: right rear of engine) S167 Sensor ground Z823
CRUISE CONTROL
3.0L DIESEL 3.0L Diesel, Cruise Control Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for 3.0L Diesel, Cruise Control Wiring Diagram for Jeep Grand Cherokee Overland 2008: 49 (near breakout to data link connector) g200 (on steering wheel) s201 A108 Accelerator pedal position sensor Apps 1 gnd Apps 1 signal Apps 2 gnd Apps 2 signal B15 B16 Brake sw 1 sig Brake sw 2 sig Engine control module F855 F856 Fuse 10a Fused b (+) G100 (left rear of engine compt) Ground Hot at all times Hot in run or start Junction block (left side of dash) K167 K23 K29 K400 Left speed control switch Right speed control switch S/c sw rtn S/c sw sense 1 S/c sw sense 2 S/c sw sig 1 S/c sw sig 2 S101 S106 S134 S200 (on steering wheel) S212 S218 (on steering wheel) S228 Steering control module (at steering wheel) Stop lamp switch V371 V372 V397 V71 V72 V937 Z907
3.7L 3.7L, Cruise Control Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for 3.7L, Cruise Control Wiring Diagram for Jeep Grand Cherokee Overland 2008: 73 (near breakout to data link connector) g200 (on steering wheel) s201 3.7l/5.7l 4.7l/6.1l A108 Accelerator pedal position sensor (5.7l: base of accelerator pedal) Apps 1 gnd Apps 1 sig Apps 1 signal Apps 2 gnd Apps 2 signal B15 B16 Brake sw 1 sig Brake sw 2 sig Engine controls system Etc motor (+) Etc motor (-) F855 F856 Fuse 10a Fuse d b(+) G100 (left rear of engine compt) Ground Hot at all times Hot in run or start Input speed sensor (rfe) (left side of transmission) Junction block (left side of dash) K122 K124 K126 K167 K22 K23 K29 K400 K922 Left speed control switch Output speed sensor (rfe) (left side of transmission) Powertrain control module (right rear of engine compt) Right speed control switch S/c sw rtn S/c sw sig 1 S/c sw sig 2 S/c sw sns 1 S/c sw sns 2 S101 S106 S139 (4.7l: right rear of engine) (3.7l: rear of engine) (5.7l & 6.1l: right rear of engine compt) S140 (3.7l: right rear of engine compt) (4.7l, 5.7l & 6.1l: rear of engine) S144 (4.7l: left side of transmission) (5.7l & 6.1l: front of transmission) S200 (on steering wheel) S212 S218 (on steering wheel) S228 Sens gnd Speed sens sig Steering control module (at steering wheel) Stop lamp switch (lower left side of dash) T13 T14 T52 Throttle body (3.7l & 4.7l: top of engine) (5.7l & 6.1l: top left front of engine) Tp 1 sig Tp 2 sig Tp sensor rtn V371 V372 V397 V71 V72 V937 Z907
4.7L 4.7L, Cruise Control Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for 4.7L, Cruise Control Wiring Diagram for Jeep Grand Cherokee Overland 2008: 73 (near breakout to data link connector) g200 (on steering wheel) s201 3.7l/5.7l 4.7l/6.1l A108 Accelerator pedal position sensor (5.7l: base of accelerator pedal) Apps 1 gnd Apps 1 sig Apps 1 signal Apps 2 gnd Apps 2 signal B15 B16 Brake sw 1 sig Brake sw 2 sig Engine controls system Etc motor (+) Etc motor (-) F855 F856 Fuse 10a Fuse d b(+) G100 (left rear of engine compt) Ground Hot at all times Hot in run or start Input speed sensor (rfe) (left side of transmission) Junction block (left side of dash) K122 K124 K126 K167 K22 K23 K29 K400 K922 Left speed control switch Output speed sensor (rfe) (left side of transmission) Powertrain control module (right rear of engine compt) Right speed control switch S/c sw rtn S/c sw sig 1 S/c sw sig 2 S/c sw sns 1 S/c sw sns 2 S101 S106 S139 (4.7l: right rear of engine) (3.7l: rear of engine) (5.7l & 6.1l: right rear of engine compt) S140 (3.7l: right rear of engine compt) (4.7l, 5.7l & 6.1l: rear of engine) S144 (4.7l: left side of transmission) (5.7l & 6.1l: front of transmission) S200 (on steering wheel) S212 S218 (on steering wheel) S228 Sens gnd Speed sens sig Steering control module (at steering wheel) Stop lamp switch (lower left side of dash) T13 T14 T52 Throttle body (3.7l & 4.7l: top of engine) (5.7l & 6.1l: top left front of engine) Tp 1 sig Tp 2 sig Tp sensor rtn V371 V372 V397 V71 V72 V937 Z907
5.7L 5.7L, Cruise Control Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for 5.7L, Cruise Control Wiring Diagram for Jeep Grand Cherokee Overland 2008: 73 (near breakout to data link connector) g200 (on steering wheel) s201 3.7l/5.7l 4.7l/6.1l A108 Accelerator pedal position sensor (5.7l: base of accelerator pedal) Apps 1 gnd Apps 1 sig Apps 1 signal Apps 2 gnd Apps 2 signal B15 B16 Brake sw 1 sig Brake sw 2 sig Engine controls system Etc motor (+) Etc motor (-) F855 F856 Fuse 10a Fuse d b(+) G100 (left rear of engine compt) Ground Hot at all times Hot in run or start Input speed sensor (rfe) (left side of transmission) Junction block (left side of dash) K122 K124 K126 K167 K22 K23 K29 K400 K922 Left speed control switch Output speed sensor (rfe) (left side of transmission) Powertrain control module (right rear of engine compt) Right speed control switch S/c sw rtn S/c sw sig 1 S/c sw sig 2 S/c sw sns 1 S/c sw sns 2 S101 S106 S139 (4.7l: right rear of engine) (3.7l: rear of engine) (5.7l & 6.1l: right rear of engine compt) S140 (3.7l: right rear of engine compt) (4.7l, 5.7l & 6.1l: rear of engine) S144 (4.7l: left side of transmission) (5.7l & 6.1l: front of transmission) S200 (on steering wheel) S212 S218 (on steering wheel) S228 Sens gnd Speed sens sig Steering control module (at steering wheel) Stop lamp switch (lower left side of dash) T13 T14 T52 Throttle body (3.7l & 4.7l: top of engine) (5.7l & 6.1l: top left front of engine) Tp 1 sig Tp 2 sig Tp sensor rtn V371 V372 V397 V71 V72 V937 Z907
6.1L 6.1L, Cruise Control Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for 6.1L, Cruise Control Wiring Diagram for Jeep Grand Cherokee Overland 2008: 73 (near breakout to data link connector) g200 (on steering wheel) s201 3.7l/5.7l 4.7l/6.1l A108 Accelerator pedal position sensor (5.7l: base of accelerator pedal) Apps 1 gnd Apps 1 sig Apps 1 signal Apps 2 gnd Apps 2 signal B15 B16 Brake sw 1 sig Brake sw 2 sig Engine controls system Etc motor (+) Etc motor (-) F855 F856 Fuse 10a Fuse d b(+) G100 (left rear of engine compt) Ground Hot at all times Hot in run or start Input speed sensor (rfe) (left side of transmission) Junction block (left side of dash) K122 K124 K126 K167 K22 K23 K29 K400 K922 Left speed control switch Output speed sensor (rfe) (left side of transmission) Powertrain control module (right rear of engine compt) Right speed control switch S/c sw rtn S/c sw sig 1 S/c sw sig 2 S/c sw sns 1 S/c sw sns 2 S101 S106 S139 (4.7l: right rear of engine) (3.7l: rear of engine) (5.7l & 6.1l: right rear of engine compt) S140 (3.7l: right rear of engine compt) (4.7l, 5.7l & 6.1l: rear of engine) S144 (4.7l: left side of transmission) (5.7l & 6.1l: front of transmission) S200 (on steering wheel) S212 S218 (on steering wheel) S228 Sens gnd Speed sens sig Steering control module (at steering wheel) Stop lamp switch (lower left side of dash) T13 T14 T52 Throttle body (3.7l & 4.7l: top of engine) (5.7l & 6.1l: top left front of engine) Tp 1 sig Tp 2 sig Tp sensor rtn V371 V372 V397 V71 V72 V937 Z907
DEFOGGERS Defoggers Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Defoggers Wiring Diagram for Jeep Grand Cherokee Overland 2008: 36 87a A/c heater control Automatic a/c C110 C16 C910 C917 Can b bus (+) Can b bus (-) Computer data lines system D54 D55 Defogger relay control Driver door module (w/ memory) (rear center of driver's door) Driver outside rearview mirror (at mirror) Driver outside rearview mirror (w/o memory) (at mirror) Fuse 10 10a Fuse 3 10a G300 (behind passenger seat) G301 (rear of left rear door) G303 (near left side of driver seat) Heated liftgate glass Heater driver Heater return Hot at all times Hot w/ run relay energized Junction block (left side of dash) Manual a/c Passenger door module (w/ memory) Passenger outside rearview mirror (at mirror) Passenger outside rearview mirror (w/o memory) (at mirror) Rear window defogger relay S343 S349 S354 (upper right side of liftgate) S355
ELECTRONIC POWER STEERING Electronic Power Steering Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Electronic Power Steering Wiring Diagram for Jeep Grand Cherokee Overland 2008: 30 (left rear of engine compt) antilock brakes module (left rear of engine compt) g100 (near breakout to data link connector) (w/ esp) steering angle sensor A200 Can c bus (+) Can c bus (-) Computer data lines system D464 D465 D64 D65 Dynamics sensor (w/ esp: behind right front seat) Fuse 10a Fuse 30a Fused b (+) Fused ign G200 G94 Ground High data Hot at all times Hot w/ remote start relay energized Junction block (left side of dash) Low data Power distribution center (left side of engine compt) S212 S235 Sens gnd Z127
ENGINE PERFORMANCE
3.0L DIESEL 3.0L Diesel, Engine Performance Wiring Diagram (1 of 4) for Jeep Grand Cherokee Overland 2008 List of elements for 3.0L Diesel, Engine Performance Wiring Diagram (1 of 4) for Jeep Grand Cherokee Overland 2008: 95 5v sply 87a A/c clutch relay ctrl A108 A15 Air conditioning system Anti-lock brakes system App 1 sens gnd App 1 sig App 2 sens gnd Apps sig 2 Asd rly ctrl Asd rly out Auto shut down relay (in power distribution center) B(+) B15 B16 Br sw sig 1 Br sw sig 2 C13 Can c bus (+) Can c bus (-) Computer data lines system D64 D65 Engine control module F26 F42 F855 F856 F942 Front control module Fuel pump module (on top of fuel tank) Fuel pump rly ctrl Fuse 10a Fuse 15a Fuse 25a Fuse 50a Fused ignition sw out G102 (left side of engine compt) G200 (near breakout to data link connector) G302 (below left rear seat) Gnd Ground Hot at all times Hot in on or start Ign sw (run-start) Ign sw out (start) Instrument cluster system Integrated power module (left side of engine compt) Junction block (left side of dash) K167 K23 K29 K31 K342 K354 K355 K363 K400 K542 K951 Pnk/tan Power distribution center (left side of engine compt) Ptc 2 relay ctrl Red/tan Rly ctrl S/c sw rtn S/c sw sns 1 S/c sw sns 2 S106 S116 S121 S151 (in headlamp & dash harness) S152 S153 S212 S228 S307 Sens 1 Sens 2 Sens gnd Sens sig Starting/charging system Steering control module (at steering wheel) Stop lamp switch Sw rtn T752 Tan/red V71 V72 V937 Z130 Z816 Z907 3.0L Diesel, Engine Performance Wiring Diagram (2 of 4) for Jeep Grand Cherokee Overland 2008 List of elements for 3.0L Diesel, Engine Performance Wiring Diagram (2 of 4) for Jeep Grand Cherokee Overland 2008: 52 5v sply A15 A202 A203 A204 A208 A211 A216 A904 Accelerator pedal position sensor Airflow control egr valve App 1 sig App 2 sig Asd rly out Boost pressure sensor Boost pressure servo motor Catalyst exhaust gas temperature post sensor Catalyst exhaust gas temperature pre sensor Computer data lines system Crankcase vent heater D509 Egr valve Exhaust differential pressure sensor Exhaust gas pressure sensor Fuel pressure sensor G106 (on engine) G107 (on engine) Glow plug 1 Glow plug 1 ctrl Glow plug 2 Glow plug 2 ctrl Glow plug 3 Glow plug 3 ctrl Glow plug 4 Glow plug 4 ctrl Glow plug 5 Glow plug 5 ctrl Glow plug 6 Glow plug 6 ctrl Glow plug module Ground Intake swirl servo motor Lin bus Pnk/red Pnk/tan Power distribution system Red Red/tan S162 (in headlamp & dash harness) Sens gnd Water in fuel sensor Z921 3.0L Diesel, Engine Performance Wiring Diagram (3 of 4) for Jeep Grand Cherokee Overland 2008 List of elements for 3.0L Diesel, Engine Performance Wiring Diagram (3 of 4) for Jeep Grand Cherokee Overland 2008: 59 02 1/1 pos ctrl 87a Computer data lines system D509 Engine control module Fuel inj 2 lo ctrl Fuel inj 3 lo ctrl Fuel inj 4 lo ctrl Fuel injector 1 Fuel injector 2 Fuel injector 3 Fuel injector 4 Fuel injector 5 Fuel injector 6 Fuel pressure solenoid Fuel pump relay Fuel quantity solenoid Fuel temperature sensor Fuse 20a Hot at all times K156 K157 K181 K21 K24 K314 K34 K35 K352 K353 K359 K362 K365 K37 K370 K390 K43 K612 K613 K614 K656 K915 K916 K936 Lin bus Pnk/red Pnk/tan Power distribution center (left side of engine compt) Red/tan S128 Sens gnd Sens sig Sens sig 1 Sol ctrl Temp gnd Temp sig Valve motor (+) Valve rtn Z36 3.0L Diesel, Engine Performance Wiring Diagram (4 of 4) for Jeep Grand Cherokee Overland 2008 List of elements for 3.0L Diesel, Engine Performance Wiring Diagram (4 of 4) for Jeep Grand Cherokee Overland 2008: 77 12v sply 5v sply Camshaft position sensor Control Crankshaft position sensor Current Engine control module Engine coolant temperature sensor F851 F858 Fuel inj 1 hi ctrl Fuel inj 1 lo ctrl Fuel inj 2 hi ctrl Fuel inj 3 hi ctrl Fuel inj 4 hi ctrl Fuel inj 5 hi ctrl Fuel inj 5 lo ctrl Fuel inj 6 hi ctrl Fuel inj 6 lo ctrl G123 G224 Htr ctrl Ign sw Intake air temperature sensor K11 K12 K13 K14 K222 K312 K313 K315 K350 K356 K366 K369 K38 K41 K44 K58 K611 K638 K658 K844 K853 K902 K914 K923 K934 K944 K957 K960 K99 Mass air flow sensor Motor ctrl N116 N117 O2 1/1 heater ctrl O2 1/1 ref sig O2 1/2 pmp cell trim Oil pressure sensor (lower right front of engine) Oil temperature sensor (lower right front of engine) Oxygen sensor Pnk/red Pnk/tan Pump Ref sig Relay out Sens gnd Sens sig Sens sig 2 Sig Valve motor (-) Valve sply X635 Z43 Z753
3.7L 3.7L, Engine Performance Wiring Diagram (2 of 5) for Jeep Grand Cherokee Overland 2008 List of elements for 3.7L, Engine Performance Wiring Diagram (2 of 5) for Jeep Grand Cherokee Overland 2008: 13 (rear of engine) (right side of transmission) Engine coolant temperature sensor (top front of engine) G101 (left side of engine compt) Left front oxygen sensor (near left front of transmission) Left rear oxygen sensor (near rear of transmission) Map sensor (top front of engine) Oil pressure switch (lower left front of engine) Right front oxygen sensor (near right front of transmission) Right rear oxygen sensor (near right rear of transmission) S142 S143 S146 3.7L, Engine Performance Wiring Diagram (3 of 5) for Jeep Grand Cherokee Overland 2008 List of elements for 3.7L, Engine Performance Wiring Diagram (3 of 5) for Jeep Grand Cherokee Overland 2008: 16 (left rear of engine) 5v sply Etc motor (+) Etc motor (-) Fuel injector 7 Fuel injectors (1: top left front of engine) (2, 4 & 6: top right of engine) (3 & 5: top left of engine) Fuse 20a Hot at all times Power distribution center (left side of engine compt) S138 (right side of engine) S149 S158 Throttle body (top of engine) Tp 1 sig Tp 2 sig Tp sens rtn 3.7L, Engine Performance Wiring Diagram (4 of 5) for Jeep Grand Cherokee Overland 2008 List of elements for 3.7L, Engine Performance Wiring Diagram (4 of 5) for Jeep Grand Cherokee Overland 2008: 17 (below left rear seat) g302 87a Fuel pump module (on top of fuel tank) Fuel pump relay Fuse 10a Hot in on or start Ignition capacitor Ignition coils (1, 3, 5 & 7: top left of engine) (2, 4, 6 & 8: top right of engine) Instrument cluster system Junction block (left side of dash) Power distribution center (left side of engine compt) Red/tan S106 S137 S148 (right side of engine) S307 Tan/red 3.7L, Engine Performance Wiring Diagram (5 of 5) for Jeep Grand Cherokee Overland 2008 List of elements for 3.7L, Engine Performance Wiring Diagram (5 of 5) for Jeep Grand Cherokee Overland 2008: 69 (in headlamp & dash harness) s130 (in power distribution center) s116 87a A/c clutch rly A15 Accelerator pedal position sensor Air conditioning system Apps 1 sens Apps 1 sens gnd Apps 1 sig Apps 1 signal Apps 2 sens gnd Apps 2 sig Apps 2 signal Aps 2 sens Asd rly ctrl Auto shut down relay B15 B16 Brake sw 1 sig Brake sw 2 sig C13 Cruise control system Esm signal Evap purge sol Evap system monitor switch Evap/purge sol sig Evap/purge solenoid (left side of engine compt) F42 Front control module Fuel pump rly ctrl Fuse 25a Fuse 50a Fuse asd relay out Fused asd relay output G100 (left rear of engine compt) G302 (below left rear seat) Hot at all times Integrated power module (left side of engine compt) Ipm K107 K167 K23 K29 K299 K31 K342 K399 K400 K52 K70 O2 1/2 htr ctrl O2 2/2 htr ctrl Power distribution center (left side of engine compt) Powertrain control module (right rear of engine compt) Red/tan S/c sw rtn S/c sw sns 2 S/c switch sense 1 S118 S134 S307 Starter rly ctrl Starting/charging system Stop lamp switch (lower left side of dash) T752 V71 V72 V937
4.7L 4.7L, Engine Performance Wiring Diagram (2 of 6) for Jeep Grand Cherokee Overland 2008 List of elements for 4.7L, Engine Performance Wiring Diagram (2 of 6) for Jeep Grand Cherokee Overland 2008: 20 (left side of engine compt) g101 (right front of transmission) (right rear of engine compt) 5v sply Egr sig Engine coolant temperature sensor (top front of engine) Exhaust gas recirculation valve assembly (top left rear of engine) G101 (left side of engine compt) Gnd Left front oxygen sensor (near left front of transmission) Left rear oxygen sensor (near right side of transmission) Map sensor (top front of engine) Oil temperature sensor (lower right front of engine) Right front oxygen sensor (near right front of transmission) Right rear oxygen sensor (near right rear of transmission) S142 S143 S146 Sens gnd Sol ctrl 4.7L, Engine Performance Wiring Diagram (3 of 6) for Jeep Grand Cherokee Overland 2008 List of elements for 4.7L, Engine Performance Wiring Diagram (3 of 6) for Jeep Grand Cherokee Overland 2008: 19 (left rear of engine) s149 5v sply Etc motor (-) Etc mtr (+) Front control module Fuel injectors (1: top left front of engine) (2, 4, 6 & 8: top right of engine) (3, 5 & 7: top left of engine) Fuse 20a Fuse ignition switch output (run/start) Hot at all times Integrated power module (left side of engine compt) Ipm Power distribution center (left side of engine compt) S132 S138 (right side of engine) S158 Throttle body (top of engine) Tp 1 sig Tp 2 sig Tp sens rtn 4.7L, Engine Performance Wiring Diagram (4 of 6) for Jeep Grand Cherokee Overland 2008 List of elements for 4.7L, Engine Performance Wiring Diagram (4 of 6) for Jeep Grand Cherokee Overland 2008: 35 (1, 3, 5 & 7 : top left of engine) (2, 4, 6 & 8 : top right of engine) (below left rear seat) g302 (in power distribution center) s116 (right side of engine) (top left of engine) 87a A15 Front control module Fuel pump module (on top of fuel tank) Fuel pump relay Fuse 10a Fuse 20a Fuse 25a Fused asd relay output G100 (left rear of engine compt) Hot at all times Hot in on or start Ignition capacitor Ignition coils Instrument cluster system Integrated power module (left side of engine compt) Ipm Junction block (left side of dash) Power distribution center (left side of engine compt) Red/tan S106 S125 S130 (in headlamp & dash harness) S136 S137 S148 S307 Stop lamp switch (lower left side of dash) Tan/red Transmission control relay 4.7L, Engine Performance Wiring Diagram (5 of 6) for Jeep Grand Cherokee Overland 2008 List of elements for 4.7L, Engine Performance Wiring Diagram (5 of 6) for Jeep Grand Cherokee Overland 2008: 28 2c press 2c sol ctrl 4c prs sw sns 4c sol ctrl 87a Auto shut down relay Fuse 50a Hot at all times L/r press L/r sol ctrl Line pressure sensor (right rear of transmission) Ms sol ctrl Od press Od sol ctrl Power distribution center (left side of engine compt) Pre- ss sol ctrl S118 S145 (right rear of engine compt) Tran ctrl rly out Transmission solenoid/trs assembly (left side of transmission) Transmission temperature sensor Trs t1 sns Trs t2 sns Trs t3 sns Trs t41 sns Trs t42 sns Ud press Ud sol ctrl 4.7L, Engine Performance Wiring Diagram (6 of 6) for Jeep Grand Cherokee Overland 2008 List of elements for 4.7L, Engine Performance Wiring Diagram (6 of 6) for Jeep Grand Cherokee Overland 2008: 93 (base of shift lever) shift lever assembly (below left rear seat) g302 2c pres sw sns 2c sol ctrl 4c pres sw sns 4c sol ctrl A/c clutch rly Air conditioning system Asd rly ctrl Autostick up/down B15 B16 Brake sw 1 sig Brake sw 2 sig C13 Cruise control system Eng oil temp sig Esm signal Evap purge ctrl Evap system monitor switch Evap/purge sol sig Evap/purge solenoid (left side of engine compt) F42 Fuel pump rly ctrl Fuse relay output G102 (left side of engine compt) G224 Ground Input speed sens Input speed sensor (left side of trans- mission) K107 K299 K31 K342 K399 K52 K70 L/r press sw sens L/r sol ctrl Line pres sens sig Ms sol ctrl O2 1/2 htr ctrl O2 2/2 htr ctrl Od pres sw sns Od sol ctrl Output speed sens Output speed sensor (left side of trans- mission) Powertrain control module (right rear of engine compt) Pressure ctrl sol S/c sw rtn S/c sw sns 1 S/c sw sns 2 S144 (left side of transmission) S147 S307 Spd sensor gnd Starter rly ctrl Starting/charging system T118 T13 T14 T140 T147 T15 T16 T20 T219 T259 T29 T38 T41 T42 T48 T50 T52 T54 T59 T60 T752 Trans ctrl output Trans ctrl relay Trans temp sens Trs t1 sns Trs t2 sns Trs t3 sns Trs t41 sns (p/n) Trs t42 sns Ud pres sw sns Ud sol ctrl V71 V72 V937 Z903
5.7L 5.7L, Engine Performance Wiring Diagram (2 of 6) for Jeep Grand Cherokee Overland 2008 List of elements for 5.7L, Engine Performance Wiring Diagram (2 of 6) for Jeep Grand Cherokee Overland 2008: 24 (5.7l: right front of transmission) (left side of engine compt) g101 (right rear of engine compt) (right rear of engine) 5.7l 5v sply 6.1l Egr sig Exhaust gas recirculation valve assembly (5.7l) (right front of engine) G101 (left side of engine compt) Gnd Left front oxygen sensor (left rear of engine) Left rear oxygen sensor (near right front of transmission) Map sensor (top rear of engine) Oil pressure sensor (lower right front of engine) Oil pressure switch (lower left front of engine) Right front oxygen sensor (near right front of transmission) Right rear oxygen sensor (near right rear of transmission) S142 S143 S146 S150 (5.7l) Sens gnd Sol ctrl 5.7L, Engine Performance Wiring Diagram (3 of 6) for Jeep Grand Cherokee Overland 2008 List of elements for 5.7L, Engine Performance Wiring Diagram (3 of 6) for Jeep Grand Cherokee Overland 2008: 43 (5.7l: right side of engine) (left rear of engine) 5.7l 5v sply 6.1l A15 A916 Engine compt) Etc motor (+) Etc motor (-) Front control module Fuel injector 1 (top left side of engine) Fuel injector 2 (top right of engine) Fuel injector 3 (top left side of engine) Fuel injector 4 (top right of engine) Fuel injector 5 (top left side of engine) Fuel injector 6 (top right of engine) Fuel injector 7 (top left side of engine) Fuel injector 8 (top right of engine) Fuse 20a Fuse ignition switch output (run/start) Fused asd relay output G100 (left rear of engine compt) Gnd Hot at all times Hydraulic cooling fan module (5.7l) (left side of b(+) Hydraulic radiator fan solenoid control Integrated power module (left side of engine compt) Ipm K173 Power distribution center (left side of eng compt) Rad fan sol ctrl Red/tan S128 (5.7l) S132 S138 S149 S158 Throttle body (top left front of engine) Tp 1 sig Tp 2 sig Tp sens rtn Z823 5.7L, Engine Performance Wiring Diagram (4 of 6) for Jeep Grand Cherokee Overland 2008 List of elements for 5.7L, Engine Performance Wiring Diagram (4 of 6) for Jeep Grand Cherokee Overland 2008: 40 (1, 3, 5 & 7 : top left of engine) (2, 4, 6 & 8 : top right of engine) (5.7l: right side of engine) red/tan s148 (in headlamp & dash harness) s101 (in power distribution center) s116 (top left of engine) 5.7l 5v sply 6.1l 87a Accelerator pedal position sensor (5.7l) (base of accelerator pedal) Apps 1 sens Apps 1 sig Apps 2 sig Aps 2 sens Fuel pump module (on top of fuel tank) Fuel pump relay Fuse 10a Fuse 20a Fuse 25a G100 (left rear of engine compt) G302 (below left rear seat) Hot at all times Hot in on or start Ignition capacitor Ignition coils Instrument cluster system Junction block (left side of dash) Oil temperature sensor (lower right front of engine) Power distribution center (left side of engine compt) Red/ tan Red/ tan (in headlamp & dash harness) s130 Red/tan S106 S125 S136 S137 S307 Stop lamp switch (5.7l: lower left side of dash) Tan/red Transmission control relay 5.7L, Engine Performance Wiring Diagram (5 of 6) for Jeep Grand Cherokee Overland 2008 List of elements for 5.7L, Engine Performance Wiring Diagram (5 of 6) for Jeep Grand Cherokee Overland 2008: 35 (left side of engine compt) g101 (right rear of transmission) line pressure sensor 2c press 2c sol ctrl 4c prs sw sns 4c sol ctrl 5.7l 87a Auto shut down relay Fuse 50a Hot at all times L/r press L/r sol ctrl Lr sol ctrl Ms sol ctrl Multi displacement system solenoid cylinder 1 Multi displacement system solenoid cylinder 4 Multi displacement system solenoid cylinder 6 Multi displacement system solenoid cylinder 7 Od press Od sol ctrl Power distribution center (left side of engine compt) S118 S145 (right rear of engine compt) S154 Tran ctrl rly out Transmission solenoid/trs assembly (left side of transmission) Transmission temperature sensor Trs t1 sns Trs t2 sns Trs t3 sns Trs t41 sense Trs t42 sense Ud press Ud sol ctrl
6.1L 6.1L, Engine Performance Wiring Diagram (2 of 6) for Jeep Grand Cherokee Overland 2008 List of elements for 6.1L, Engine Performance Wiring Diagram (2 of 6) for Jeep Grand Cherokee Overland 2008: 24 (5.7l: right front of transmission) (left side of engine compt) g101 (right rear of engine compt) (right rear of engine) 5.7l 5v sply 6.1l Egr sig Exhaust gas recirculation valve assembly (5.7l) (right front of engine) G101 (left side of engine compt) Gnd Left front oxygen sensor (left rear of engine) Left rear oxygen sensor (near right front of transmission) Map sensor (top rear of engine) Oil pressure sensor (lower right front of engine) Oil pressure switch (lower left front of engine) Right front oxygen sensor (near right front of transmission) Right rear oxygen sensor (near right rear of transmission) S142 S143 S146 S150 (5.7l) Sens gnd Sol ctrl 6.1L, Engine Performance Wiring Diagram (3 of 6) for Jeep Grand Cherokee Overland 2008 List of elements for 6.1L, Engine Performance Wiring Diagram (3 of 6) for Jeep Grand Cherokee Overland 2008: 43 (5.7l: right side of engine) (left rear of engine) 5.7l 5v sply 6.1l A15 A916 Engine compt) Etc motor (+) Etc motor (-) Front control module Fuel injector 1 (top left side of engine) Fuel injector 2 (top right of engine) Fuel injector 3 (top left side of engine) Fuel injector 4 (top right of engine) Fuel injector 5 (top left side of engine) Fuel injector 6 (top right of engine) Fuel injector 7 (top left side of engine) Fuel injector 8 (top right of engine) Fuse 20a Fuse ignition switch output (run/start) Fused asd relay output G100 (left rear of engine compt) Gnd Hot at all times Hydraulic cooling fan module (5.7l) (left side of b(+) Hydraulic radiator fan solenoid control Integrated power module (left side of engine compt) Ipm K173 Power distribution center (left side of eng compt) Rad fan sol ctrl Red/tan S128 (5.7l) S132 S138 S149 S158 Throttle body (top left front of engine) Tp 1 sig Tp 2 sig Tp sens rtn Z823 6.1L, Engine Performance Wiring Diagram (4 of 6) for Jeep Grand Cherokee Overland 2008 List of elements for 6.1L, Engine Performance Wiring Diagram (4 of 6) for Jeep Grand Cherokee Overland 2008: 40 (1, 3, 5 & 7 : top left of engine) (2, 4, 6 & 8 : top right of engine) (5.7l: right side of engine) red/tan s148 (in headlamp & dash harness) s101 (in power distribution center) s116 (top left of engine) 5.7l 5v sply 6.1l 87a Accelerator pedal position sensor (5.7l) (base of accelerator pedal) Apps 1 sens Apps 1 sig Apps 2 sig Aps 2 sens Fuel pump module (on top of fuel tank) Fuel pump relay Fuse 10a Fuse 20a Fuse 25a G100 (left rear of engine compt) G302 (below left rear seat) Hot at all times Hot in on or start Ignition capacitor Ignition coils Instrument cluster system Junction block (left side of dash) Oil temperature sensor (lower right front of engine) Power distribution center (left side of engine compt) Red/ tan Red/ tan (in headlamp & dash harness) s130 Red/tan S106 S125 S136 S137 S307 Stop lamp switch (5.7l: lower left side of dash) Tan/red Transmission control relay 6.1L, Engine Performance Wiring Diagram (5 of 6) for Jeep Grand Cherokee Overland 2008 List of elements for 6.1L, Engine Performance Wiring Diagram (5 of 6) for Jeep Grand Cherokee Overland 2008: 35 (left side of engine compt) g101 (right rear of transmission) line pressure sensor 2c press 2c sol ctrl 4c prs sw sns 4c sol ctrl 5.7l 87a Auto shut down relay Fuse 50a Hot at all times L/r press L/r sol ctrl Lr sol ctrl Ms sol ctrl Multi displacement system solenoid cylinder 1 Multi displacement system solenoid cylinder 4 Multi displacement system solenoid cylinder 6 Multi displacement system solenoid cylinder 7 Od press Od sol ctrl Power distribution center (left side of engine compt) S118 S145 (right rear of engine compt) S154 Tran ctrl rly out Transmission solenoid/trs assembly (left side of transmission) Transmission temperature sensor Trs t1 sns Trs t2 sns Trs t3 sns Trs t41 sense Trs t42 sense Ud press Ud sol ctrl
EXTERIOR LIGHTS Backup Lamps Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Backup Lamps Wiring Diagram for Jeep Grand Cherokee Overland 2008: 45 (below left rear seat) g302 (left side of engine compt) integrated power module (right rear of engine compt) (except 3.0l) powertrain control module B (+) Backup Backup lamp Backup lamp feed Bus (+) c1 Bus (-) Can c Can c bus (+) Can c bus (-) Computer data lines system D64 D65 Front control module Fuse 20a Fused ign sw out (run- start) Fused ign sw out (run-start) G100 (left rear of engine compt) Ground Hot at all times Ign sw Inside rearview mirror Ipm Lamp feed Left tail/ stop/ turn lamp License plate lamp/rear camera assembly Power distribution center (left side of engine compt) Rear video camera Right tail/ stop/ turn lamp S110 S132 (rfe) S199 S302 (under rear of vehicle) S304 S327 Shift lever assembly (base of shift lever) Tan Trailer tow 7-way wiring (under rear of vehicle) Transmission solenoid/trs assembly (rfe) (4.7l, 5.7l & 6.1l: left side of transmission) Trs t42 sns c4 W/ rear camera Wireless ignition node Z131 Exterior Lamps Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Exterior Lamps Wiring Diagram for Jeep Grand Cherokee Overland 2008: 73 (at steering wheel) (left rear of engine compt) g100 (left side of dash) junction block 87a Brake lamp sw out Can b (+) Can b (-) Can b bus (+) Can b bus (-) Chmsl lamp Cluster Computer data lines system D500 D54 D55 Drv Flip-up glass sw sense Flip-up glass switch Front control module Fuse 10a Fuse 15a Fused park lamp relay output G100 (left rear of engine compt) G103 (right side of engine compt) G301 (rear of left rear door) G302 (below left rear seat) Hazard sw sens c1 Hazard sw sense Hot at all times Integrated power module (left side of engine compt) L lo beam L turn sig L43 L50 L60 L61 L62 L63 L91 Left headlamp Left high intensity discharge lamp Left tail/ stop/turn lamp License plate lamp/rear camera assembly Light switch Lin bus Lin bus Lin lighting Lower bank switch Lr turn sig ctrl ipm Marker lamp Park lamp relay output Park lamp relay Park lamp rly ctrl ipm Park/ turn lamp Power distribution center (left side of engine compt) R turn sig Rf park lp drv Right headlamp Right high intensity discharge lamp Right tail/ stop/turn lamp Rr turn sig ctrl S107 (in headlamp & dash harness) S114 S129 S219 (left kick panel) S304 S353 Steering control module Stop lamp switch (3.7l, 4.7l & 5.7l: lower left side of dash) Tail/ stop lamp Turn signal lamp W/ hid W/o hid Trailer Tow Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Trailer Tow Wiring Diagram for Jeep Grand Cherokee Overland 2008: 33 (on underbody harness) s329 (under rear of vehicle) s328 87a A930 B400 Backup lamps circuit Front control module Fuse 19 20a Fuse 21 20a Fuse 30a Fuse 9 10a G302 (below left rear seat) Hot at all times Integrated power module (left side of engine compt) Ipm Junction block (left side of dash) L614 L615 L76 Left trailer tow brake lamp relay control Left turn trailer tow relay Park lamp relay Power distribution center (left side of engine compt) Power outlet relay Red Right trailer tow brake lamp relay control Right turn trailer tow relay S307 S333 (under rear of vehicle) Trailer tow 4-way wiring (under rear of vehicle) Trailer tow 7-way wiring (under rear of vehicle) Trailer tow terminal wiring Z912
GROUND DISTRIBUTION Ground Distribution Wiring Diagram (1 of 2) for Jeep Grand Cherokee Overland 2008 List of elements for Ground Distribution Wiring Diagram (1 of 2) for Jeep Grand Cherokee Overland 2008: 94 (3.0l) engine control module (6.1l) a/c compressor clutch (except 3.0l) powertrain control module (except 5.7l/6.1l) a/c compressor clutch (except 6.1l) a/c compressor clutch (except 6.1l) exhaust gas recirculation valve assembly (except base) monitor/ dvd media system (except base) rear power outlet (not used) (premium audio) radio amplifier (rfe) transfer case selector switch (w/ esp) steering angle sensor 5.7l 6.1l A/c control heater Adjustable pedals switch Automatic a/c Battery Boost pressure servo motor C311 C330 Cluster Console power outlet Egr valve Except 3.7l Except 6.1l Except hid Front blower power module G101 (left side of engine compt) G102 (left side of engine compt) G103 (right side of engine compt) G104 (left side of engine compt) G105 (lower left rear of engine) G106 (3.0l) (on engine) G106 (except 3.0l) (on engine) G107 (3.0l) (on engine) G107 (except 3.0l) (on engine) G108 G200 (near breakout to data link connector) G201 (under center console) G300 (behind passenger seat) Glow plug module Hands free module Hid Hood ajar switch Horn 1 Instrument panel power outlet Intake swirl servo motor Left front oxygen sensor Left front tire pressure transponder Left rear oxygen sensor Lower bank switch Manual a/c Memory Multi displacement system cylinder 1 solenoid Multi displacement system cylinder 4 solenoid Multi displacement system cylinder 6 solenoid Multi displacement system cylinder 7 solenoid Occupant restraint controller module Passenger door latch Passenger door module Passenger outside rearview mirror Passenger seat switch Passenger seat) Radio Right cushion pad heater Right front oxygen sensor Right front tire pressure transponder Right headlamp Right high intensity discharge lamp Right rear door latch Right rear oxygen sensor Right seat back heater S111 (in headlamp & dash harness) S115 (in headlamp & dash harness) S146 (3.7l: right side of transmission) (4.7l: right front of transmission) (5.7l & 6.1l: front of transmission) S147 (except 3.7l: right rear of engine compt) S154 (top of engine) S168 S204 (center stack, in breakout to switch bank) S210 (near breakout for ignition switch) S211 (near breakout for ignition switch) S212 (near breakout for instrument panel power outlet) S213 (center stack, in breakout for radio) S317 (left rear door sill) S318 (right front door sill) S349 (in passenger door) Shift lever assembly Steering control module Upper bank switch W/ heated seats W/o memory Washer fluid level sensor Wireless ignition node Ground Distribution Wiring Diagram (2 of 2) for Jeep Grand Cherokee Overland 2008 List of elements for Ground Distribution Wiring Diagram (2 of 2) for Jeep Grand Cherokee Overland 2008: 86 (3.0l) cabin heater (3.0l/5.7l) hydraulic cooling fan module (3.7l/4.7l) radiator fan/motor assembly (except 3.7l) final drive control module (except hands free) (hands free) (if equipped) heated seat module (if equipped) park assist module (info not available) (left side of engine compt) integrated power module (memory seats) memory seat module (nag1) transmission control module (w/ heated seats & premium) left cushion pad heater (w/ heated seats & premium) left seat back heater (w/o memory & heated seats) driver seat switch (w/o memory) driver outside rearview mirror (w/o memory) mirror switch 3.7l/3.0l 4.7l/5.7l 4wd 87a Anti-lock brakes module Brake fluid level sensor C305 C306 C316 C387 Chmsl lamp Data link connector Driver door latch Driver door module Driver seat belt switch Driver window/ door lock switch Electronic overhead module Evap system monitor switch Except 4wd Except base Flip-up glass latch Front control module Fuel pump module G100 (left rear of engine compt) G109 G110 G111 G202 G301 (rear of left rear door) G302 (below left rear seat) G303 (near left side of driver seat) Gnd Heated liftgate glass Inside rearview mirror Inverter module Ipm Left front fog lamp Left headlamp Left rear door latch Left tail/stop/ turn lamp Liftgate door latch Liftgate) Park lamp relay Passenger seat belt switch Rain sensor Rear camera/ license plate lamp assembly Rear window wiper motor Right front fog lamp Right high intensity discharge lamp Right rear tire pressure transponder Right tail/stop/ turn lamp S110 (in headlamp & dash harness) S114 (in headlamp & dash harness) S129 (in headlamp & dash harness) S304 (under rear of vehicle) S307 (under rear of vehicle) S320 (right front door sill) S321 (w/ dvd) (left rear door sill) S335 (on underbody harness) S341 (in driver door) S343 (in driver door) S366 (except base) (left rear of headliner) Stop lamp switch Sunroof motor/ module Trailer tow 4-way wiring Trailer tow 7-way wiring W/ dvd Windshield wiper motor Wiper on/off relay
HEADLIGHTS Headlights Wiring Diagram, with High Intensity Discharge for Jeep Grand Cherokee Overland 2008 List of elements for Headlights Wiring Diagram, with High Intensity Discharge for Jeep Grand Cherokee Overland 2008: 52 (info not available) 87a Can b bus (+) Can b bus (-) Computer data lines system Exterior lights system Front control module Fuse 10a Fuse f2 40a Fuse f3 20a Fuse f39 20a Fused run rly out G100 (left rear of engine compt) G103 (right side of engine compt) Gnd Headlamp leveling sens 5v sply Headlamp leveling sens rtn Headlamp leveling sens sig Headlp leveling sens 5v sply Headlp leveling sens rtn Headlp leveling sens sig Hid headlamp relay Hot at all times Hot w/ run relay energized Integrated power module (left side of engine compt) Junction block (left side of dash) L33 L43 L61 Left headlamp level sensor Left hi beam drv Left hid lamp drv Left high beam driver Left low beam driver Left low beam drv Left turn sig Light high intensity discharge lamp Lin lighting Power distribution center (left side of engine compt) Rf park lamp driver Right headlamp level sensor Right hi beam drv Right hid lamp drv Right high beam driver Right high intensity discharge lamp Right turn sig S114 S134 S152 S170 S171 Tan Headlights Wiring Diagram, without High Intensity Discharge for Jeep Grand Cherokee Overland 2008 List of elements for Headlights Wiring Diagram, without High Intensity Discharge for Jeep Grand Cherokee Overland 2008: 42 (in headlamp & dash harness) s103 (left side of engine compt) integrated power module (near breakout for instrument cluster) s206 (near breakout for instrument cluster) s216 87a Auto headlamp sensor (top center of dash) Auto headlamps sig Auto headlamps sig rtn Can b bus (+) Can b bus (-) Cluster Computer data lines system D55 Front control module Front fog lamp relay Front fog lamp relay ctrl Fuse 20a Fused b (+) Fused ign sw out (run-start) G100 (left rear of engine compt) G103 (right side of engine compt) Ground High beam lamp Hot at all times Ign sw (run-start) Ipm Left front fog lamp Left headlamp Left high beam driver Left low beam driver Low beam lamp Power distribution center (left side of engine compt) Right front fog lamp Right headlamp Right high beam driver Right low beam driver S102 (in headlamp & dash harness) S110 S114 S199 Tan Wireless ignition node
HORN Horn Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Horn Wiring Diagram for Jeep Grand Cherokee Overland 2008: 27 (in headlamp & dash harness) (near breakout for instrument cluster) (right side of engine compt) g103 87a Can b bus (+) Can b bus (-) Computer data lines system D54 D55 Front control module Fuse 20a Horn 1 (right front of engine compt) Horn relay Horn rly ctrl Horn sw rtn Horn sw sig Horn switch Hot at all times Integrated power module (left side of engine compt) Ipm S102 S103 S111 S206 S216 Steering control module (at steering wheel) X903
INSTRUMENT CLUSTER Overhead Console Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Overhead Console Wiring Diagram for Jeep Grand Cherokee Overland 2008: 22 87a A114 Can b bus (+) Can b bus (-) Computer data lines system D54 D55 Electronic overhead module F921 Fuse 10a Fuse 15a Fused b (+) Fused run rly out G301 (rear of left rear door) Ground Hot at all times Integrated power module (left side of engine compt) Junction block (left side of dash) Run relay S365 (w/ day/night mirror) S366 (except base) Z915
INTERIOR LIGHTS Courtesy Lamps Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Courtesy Lamps Wiring Diagram for Jeep Grand Cherokee Overland 2008: 66 (behind passenger seat) g300 (behind right side of dash) s208 (left kick panel) s209 (left rear of body) s312 (lower center of liftgate) (near left side of driver seat) g303 (rear of left rear door) (rear of left rear door) g301 Ajar sw sns Can b bus (+) Can b bus (-) Cargo lamp (base) Cluster Computer data lines system Courtesy lamp drv D500 D54 D55 Driver door latch (rear of driver door) Driver door module (rear center of driver's door) Flip-up glass Flip-up glass ajar sw sens Flip-up glass latch (lower center of liftgate) Fuse 10a G300 (behind passenger seat) G301 G303 (near left side of driver seat) G74 G75 Glove box lamp Glove box lamp drv Hot at all times Junction block (left side of dash) Left front grab handle lamp Left front overhead courtesy lamp Left lower courtesy lamp Left rear door latch (left rear door) Left vanity lamp Lf door ajar Liftgate ajar sw sens Liftgate door latch Light switch Lin bus Lr door ajar sw sens Passenger door latch (in passenger door) Passenger door module Rear window wiper motor (lower center of liftgate) Red Rf door ajar sw sense Right front grab handle lamp Right lower courtesy lamp Right rear door latch (right rear door) Right vanity lamp Rr door ajar sw sens S318 S320 S325 S341 S349 S350 S352 S353 S361 (left rear of headliner) S394 (in passenger's door) Steering control module (at steering wheel) Sw sense Instrument Illumination Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Instrument Illumination Wiring Diagram for Jeep Grand Cherokee Overland 2008: 43 (not used) c201 (not used) c312 (on steering wheel) s218 A/c heater control Adjustable pedals switch Can b bus (+) Can b bus (-) Cluster Computer data lines system D500 Dimmer switch Exterior lights system Front control module (left side of engine compt) Fuse 10a Fused b(+) Fused prk lmp rly out G100 (left rear of engine compt) G200 (near breakout to data link connector) Gnd Ground Hazard sw sns Hot at all times Junction block (left side of dash) L91 Left rear heated seat switch Lin bus Lower bank switch Panel lamps drv Radio Right rear heated seat switch S110 S204 S210 S211 S212 S219 (left kick panel) S228 S230 (near breakout for data link connector) Shift lever assembly (base of shift lever) Steering control module (at steering wheel) Transfer case selector switch (rfe) Upper bank switch Z131
MEMORY SYSTEMS Memory Systems Wiring Diagram (1 of 3) for Jeep Grand Cherokee Overland 2008 List of elements for Memory Systems Wiring Diagram (1 of 3) for Jeep Grand Cherokee Overland 2008: 90 (w/ premium) (w/o premium) A33 Adjustable pedal motor (at pedal assembly) Adjustable pedals motor fwd Adjustable pedals motor rwd Adjustable pedals sens rtn Adjustable pedals sens sig Adjustable pedals sens sply Adjustable pedals sw gnd Adjustable pedals sw rwd Adjustable pedals switch Backward Can b bus (+) Can b bus (-) Circuit breaker 2 20a Computer data lines system D54 D55 Driver front vertical seat adjuster motor (bottom of driver seat) Driver horizontal seat adjuster motor (below driver seat) Driver rear vertical seat adjuster motor (bottom of driver seat) Driver recliner seat adjuster motor (below driver seat) Driver seat switch Drv seat f vert down drv Drv seat f vert pos sns Drv seat f vert sens gnd Drv seat f vert up drv Drv seat horiz fwd drv Drv seat horiz pos sns Drv seat horiz rwd drv Drv seat horiz sens gnd Drv seat r vert down drv Drv seat r vert pos sns Drv seat r vert sens gnd Drv seat r vert up drv Drv seat recliner down drv Drv seat recliner pos sens gnd Drv seat recliner pos sns Drv seat recliner up drv Drv seat sw f vert/recliner sw Drv seat sw mux rtn Drv seat sw r vert/horiz sw Drv seat sw sply Forward Front down Front up Fused b(+) G11 G12 G303 (near left side of driver seat) G401 G402 G403 G404 G491 G492 G493 G494 G912 Ground Hot at all times Junction block (left side of dash) Memory seat module (below driver seat) P111 P113 P115 P117 P119 P121 P141 P143 P205 P206 P239 P339 P599 Pedals sw fwd Pedals sw gnd Pedals sw rwd Q101 Q102 Q103 Rear down Rear up Recliner down Recliner up S320 S370 Z911 Memory Systems Wiring Diagram (2 of 3) for Jeep Grand Cherokee Overland 2008 List of elements for Memory Systems Wiring Diagram (2 of 3) for Jeep Grand Cherokee Overland 2008: 96 (in driver's door) s393 (near left side of driver seat) g303 A929 A931 C110 C910 Can b bus (+) Can b bus (-) Circuit breaker 20a Computer data lines system D54 D55 Day/ night mirror Dr express sw return Driver door module (rear center of driver's door) Driver express window motor Driver outside rearview mirror (at mirror) Driver window/door lock switch Drv express sw return Drv mirror common drv Drv mirror heater drv Drv mirror heater return Drv mirror hori position sig Drv mirror horiz dr Drv mirror sensor ground Drv mirror vert drv Drv mirror vert position sig Drv window express down drv Drv window express up drv Drv window hall sensor a sig Drv window hall sensor b sig Drv window hall sensor rtn Drv window hall sensor sply Fuse 10a Fused b(+) Fused run/acc delay relay G161 G303 (near left side of driver seat) G775 G920 Ground Heater Horiz motor Horiz sensor Hot at all times Hot w/ run/accessory delay relay energized Junction block (left side of dash) Left door lock sw mux Left door lock sw return Master sw lf window mux Master sw rf window mux Memory select sw mux Memory select sw rtn Mirror common drv Mirror horiz l sw sns Mirror horiz r sw sns Mirror switch Mirror ver down sw Mirror ver down sw sns Mirror ver sw sns Mirror ver up sw sns Mirrors system P439 P65 P669 P67 P69 P703 P704 P705 P706 P71 P73 P75 P76 Power windows system Q15 Q221 Q222 Q301 Q303 Q305 Q311 Q321 Q991 Q994 S325 S342 S343 S345 Set memory switch Vert motor Vert sensor Window lock out sw output Z911 Z927 Memory Systems Wiring Diagram (3 of 3) for Jeep Grand Cherokee Overland 2008 List of elements for Memory Systems Wiring Diagram (3 of 3) for Jeep Grand Cherokee Overland 2008: 67 A929 A931 C16 C917 Can b bus (+) Can b bus (-) Computer data lines system D54 D55 Fused (b+) Fused run/acc delay rel output Fused run/acc relay G160 G300 (behind passenger seat) G776 Ground Heater Horiz Horiz motor P64 P66 P666 P68 P70 P72 P74 Pass mirror common driver Pass mirror heater return Pass mirror hor position sig Pass mirror horizontal drv Pass mirror sensor ground Pass mirror vertical driver Pass mirror vertical position sig Pass window exp sw mux Pass window express down drv Pass window express sw Pass window express sw mux Pass window express sw return Pass window express up drv Pass window hall sens a sig Pass window hall sensor a sig Pass window hall sensor b sig Pass window hall sensor rtn Pass window hall sensor sply Passenger door module Passenger express window motor Passenger mirror heater drv Passenger outside rearview mirror (at mirror) Passenger window/door lock switch Q302 Q304 Q306 Q312 Q322 Q336 Q936 Q990 Right door lock sw mux Right door lock sw ret Right door lock sw return S349 S399 Sensor Tan Vert Vert motor Z908
NAVIGATION Parking Assistant Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Parking Assistant Wiring Diagram for Jeep Grand Cherokee Overland 2008: 81 (11-22 not used) 87a Can b bus (+) Can b bus (-) Cluster Communication Communication feed Computer data lines system D54 D55 D700 D701 D702 D703 D704 D705 D706 D707 D708 D709 D777 D778 Display sig Display sply F921 Feed Fr dis sig Fr display sig Fr sens sply Front control module (left side of engine compt) Front park assist display Fuse 10a G302 (below left rear seat) Gnd Ground Hot at all times Junction block (left side of dash) Lin bus Park assist module (below left rear seat) Park assist sensor 1 Park assist sensor 10 (left side of rear bumper) Park assist sensor 2 Park assist sensor 3 Park assist sensor 4 Park assist sensor 5 Park assist sensor 6 Park assist sensor 7 (right side of rear bumper) Park assist sensor 8 (right middle of rear bumper) Park assist sensor 9 (left middle of rear bumper) Park assist switch Rear park assist display Run relay Run rly out S155 (in headlamp & dash harness) S156 (in headlamp & dash harness) S311 (premium) S335 (4wd) S356 (center of rear bumper) S357 (center of rear bumper) Sens gnd Sens sig 1 Sens sig 10 Sens sig 2 Sens sig 3 Sens sig 4 Sens sig 5 Sens sig 6 Sens sig 7 Sens sig 8 Sens sig 9 Sens sply Switch bank (upper) X700 X750 X777 X778 Z169 Z171 Z172 Z702 Z913 Rear Camera Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Rear Camera Wiring Diagram for Jeep Grand Cherokee Overland 2008: 25 (left side of dash) junction block (rear of left rear door) g301 Backup lamp Camera rtn Camera shield Camera sig Exterior lights system Fuse 20a Fused b(+) Gnd Hot at all times Integrated power module (left side of engine compt) License plate lamp/rear camera assembly Nca Radio Rear video camera Red S226 S227 S310 S316 S353 S388 S397 Tan
POWER DISTRIBUTION Power Distribution Wiring Diagram (1 of 4) for Jeep Grand Cherokee Overland 2008 List of elements for Power Distribution Wiring Diagram (1 of 4) for Jeep Grand Cherokee Overland 2008: 69 (in headlamp & dash harness) s153 (in power distribution center) (info not available) (left side of dash) junction block (left side of engine compt) integrated power module (nag1) transmission relay (near breakout for ignition switch) s202 (on underbody harness) s337 87a A/c clutch relay (except 3.0l) A/c heater control Adjustable pedals relay (w/o memory) Anti-lock brakes module B(+) Battery Circuit breaker 3 20a Door) s342 Driver door lock/ window switch Driver door module Electronic overhead module Engine control module (3.0l) Except premium Final drive control module (rfe) Front control module Front fog lamp relay Fuel pump relay (except 3.0l) Fuse 10a Fuse 15a Fuse 20a Fuse 30a Fuse 50a (except 3.0l) Generator Hands free module High radiator fan relay Horn relay Integrated power module (left side of engine compt) Ipm Junction block (left side of dash) Left turn trailer tow relay Low radiator fan relay Mass air flow sensor (3.0l) Mirror switch Monitor/ dvd media system Occupant restraint controller module Of vehicle) Park lamp relay Passenger door lock/ window switch Passenger door module Pnk/ tan Power distribution center (left side of engine compt) Powertrain control module (except 3.0l) Premium Radio Red Right turn trailer tow relay Run/accessory delay relay S334 (under rear red S399 Starter Steering control module Stop lamp switch (3.7l/5.7l) To circuit breaker 2 (diagram 2 of 4) To fuse (diagram 3 of 4) To fuse 11 (pdc) (diagram 4 of 4) To run relay (j/b) (diagram 3 of 4) To run/ start relay (in pdc) (diagram 2 of 4) Transfer case selector switch (rfe) Transmission control module (nag1) W/ remote start Power Distribution Wiring Diagram (2 of 4) for Jeep Grand Cherokee Overland 2008 List of elements for Power Distribution Wiring Diagram (2 of 4) for Jeep Grand Cherokee Overland 2008: 71 (except base: left rear of headliner) (base: center front of headliner) s350 (in driver door) s345 (in headlamp & dash harness) s164 (left rear door sill) s325 (left rear of headliner) s364 (left side of dash) junction block (left side of engine compt) power distribution center (not used) (w/ remote start) s165 87a A/c clutch relay Cargo lamp (base) Circuit breaker 2 20a Door lock relay Driver door module Driver door unlock relay Driver seat switch Final drive control module (rfe) Flip-up glass relay From run/ accessory delay relay (diagram 1 of 4) From splice s153 (diagram 1 of 4) Front control module Fuse 10a Fuse 15a Fuse 20a Fuse 30a Fuse 40a Glove box lamp Headlamp washer relay (hid lamps) Heated seat module Hid headlamp relay Integrated power module (left side of engine compt) Ipm Left front grab handle lamp Left front overhead courtesy lamp Left lower courtesy lamp Left vanity lamp Memory Memory seat module Mirror switch Passenger door module Passenger door unlock relay Passenger seat switch Pnk/ tan Power distribution center (left side of engine compt) Powertrain control module (except 3.0l) Rear window defogger relay Rear wiper relay Red Red/ tan Red/ tan (or red) Rfe Right front grab handle lamp Right lower courtesy lamp Right vanity lamp Run/ start relay S131 (6.1l srt) (in headlamp & dash harness) S167 Sunroof/ motor module To fuse 8 (diagram 4 of 4) To junction block fuse 9 (diagram 3 of 4) To power outlet relay (j/b) (diagram 3 of 4) To rear wiper relay (j/b) (diagram 3 of 4) To run relay (diagram 3 of 4) To splice s199 (diagram 4 of 4) Transmission control relay W/ heated seats W/ power seats W/o memory Wiper high/low relay Wiper on/off relay Power Distribution Wiring Diagram (3 of 4) for Jeep Grand Cherokee Overland 2008 List of elements for Power Distribution Wiring Diagram (3 of 4) for Jeep Grand Cherokee Overland 2008: 63 (in headlamp & dash harness) s122 (left rear of body) s303 (left side of dash) junction block 4wd 87a A/c heater control Blower motor relay Cluster Console power outlet Data link connector Door lock relay Door sill) s311 Driver door unlock relay Except hands free Except premium Final drive control module (rfe) From fuse (diagram 1 of 4) From fuse (diagram 2 of 4) From fuse 19 (pdc) (diagram 2 of 4) From fuse 30 (ipm) (diagram 1 of 4) From fuse 4 (pdc) (diagram 2 of 4) From fuse 6 (pdc) (diagram 2 of 4) From run relay (diagram 3 of 4) Fuse 10a Fuse 20a Fuse 30a G100 (left rear of engine compt) G200 (near breakout to data link connector) G300 (behind passenger seat) Hands free Inside rearview mirror Instrument panel power outlet Left front tire pressure trans- ponder (except 3.7l) Left rear heated seat switch Lower bank switch Park assist Park assist module (if equipped) Passenger door unlock relay Power distribution center (left side of engine compt) Power outlet relay Premium Radio amplifier (w/ premium audio) Rear power outlet Rear window defogger relay Rear wiper relay Red Red/ tan Right front tire pressure trans- ponder (except 3.7l) Right rear tire pressure trans- ponder Run relay Run/ accessory relay S136 S152 (w/ hid) (in headlamp & dash harness) S211 S228 (left side of dash, near breakout for left courtesy lamp) S235 S319 (except base) Steering angle sensor (esp) Steering control module To fuse 1 (diagram 3 of 4) To fuse 8 (pdc) (diagram 4 of 4) Trailer tow 7-way wiring Upper bank switch Power Distribution Wiring Diagram (4 of 4) for Jeep Grand Cherokee Overland 2008 List of elements for Power Distribution Wiring Diagram (4 of 4) for Jeep Grand Cherokee Overland 2008: 76 (in headlamp & dash harness) s132 (in power distribution center) s118 (left side of engine compt) integrated power module (left side of engine compt) power distribution center (not used) 110v ac line 1 110v ac line 2 A998 Ac power outlet Adjustable pedal Anti-lock brakes module Auto shut down relay B(+) Blower motor relay C203 C305 C306 Cluster Computer data lines system Drv ind Enable sw sig Engine control module (3.0l) Except adjustable pedal From fuse 15 (ipm) (diagram 1 of 4) From fuse 37 (pdc) (diagram 2 of 4) From fuse 4 (diagram 2 of 4) From run/ accessory relay (j/b) (diagram 3 of 4) Front control module Fuel pump relay Fuse 15a Fuse 20a Fuse 25a Fuse 30a Fuse 40a Fuse 50a Fuse 50a (3.0l) Fused ign sw out (run-start) Fusible link (16 ga- red) G200 (near breakout to data link connector) G303 (near left side of driver seat) Glow plug module (3.0l) Gnd Hydraulic cooling fan module (3.0l/5.7l) Ign sw out (start) Inverter module Ipm Left front tire pressure transponder (except 3.7l) P801 P802 P806 P807 Power distribution center (left side of engine compt) Powertrain control module (except 3.0l) Ptc 1 relay Ptc 2 relay Ptc 3 relay Red Red (or red/ tan) Red/ tan Rfe Right front tire pressure transponder (except 3.7l) Right rear tire pressure transponder S101 (in headlamp & dash harness) S120 (in headlamp & dash harness) S121 (in headlamp & dash harness) S126 (in power distribution center) S128 (5.7l/3.0l) (in headlamp & dash harness) S199 S210 S234 (except wireless) (right side of hvac unit) Shift lever assembly Starter motor relay Stop lamp switch Tan/ red Wireless ignition node Z917
POWER DOOR LOCKS Power Door Locks Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Power Door Locks Wiring Diagram for Jeep Grand Cherokee Overland 2008: 64 (behind passenger seat) g300 (left side of dash) (lower center of liftgate) flip-up glass latch (near left side of driver seat) g303 (rear of left rear door) (rear of left rear door) g301 87a Can b bus (+) Can b bus (+) lf door ajar sw sens c2 Can b bus (+) rf door ajar sw sens c2 Can b bus (-) Cluster Computer data lines system D54 D55 Door lock relay Door lock rly ctrl Door unlock rly ctrl Driver door latch (rear of driver door) Driver door module (rear center of driver's door) Driver door unlock relay Drv door unlock rly ctrl Flip-up glass ajar sw sens Flip-up glass relay Flip-up glass rly ctrl Front control module Fuse 15a Fuse 20a Fused b(+) G100 (left rear of engine compt) G103 (right side of engine compt) G300 (behind passenger seat) G301 G303 (near left side of driver seat) G74 G75 Hood ajar sw sns Hood ajar switch Horn rly ctrl Horns system Hot at all times Integrated power module (left side of engine compt) Ipm Junction block Left rear door latch (left rear door) Liftgate ajar sw sens Liftgate door latch Lr door ajar sw sens Passenger door latch (in passenger door) Passenger door module Passenger door unlock relay Rear window wiper motor (lower center of liftgate) Right rear door latch (right rear door) Rr door ajar sw sens S111 S136 S313 (below driver seat) S314 (below driver seat) S318 S320 S341 S349 S352 (lower center of liftgate) S353
POWER MIRRORS Automatic Day/Night Mirror Wiring Diagram, with Hands Free for Jeep Grand Cherokee Overland 2008 List of elements for Automatic Day/Night Mirror Wiring Diagram, with Hands Free for Jeep Grand Cherokee Overland 2008: 39 (w/ memory) driver outside rearview mirror (w/ rear camera) s327 87a Auto day/night mirr (+) Auto day/night mirr (-) Backup lamp feed Can b bus (+) Can b bus (-) Computer data lines system Day/night mirror Exterior lights system Front control module Fuse 10a Fused run relay out G301 (rear of left rear door) Gnd Hands free module (right kick panel) Hot at all times Inside rearview mirror Integrated power module (left side of engine compt) Ipm Junction block (left side of dash) Micro 1 in (+) Micro 2 in (+) Micro feed Micro in (-) Microphone 1 in (+) Microphone 2 in (+) Microphone feed Microphone in (-) Run relay S365 S366 Sens gnd X712 X722 X792 X793 X835 Automatic Day/Night Mirror Wiring Diagram, without Hands Free for Jeep Grand Cherokee Overland 2008 List of elements for Automatic Day/Night Mirror Wiring Diagram, without Hands Free for Jeep Grand Cherokee Overland 2008: 26 (left side of engine compt) integrated power module (rear of left rear door) g301 (w/ rear camera) s327 87a Auto day/night mirror(+) Auto day/night mirror(-) Backup Backup lamp feed Can b bus (+) Can b bus (-) Computer data lines system Day/ night mirror Driver outside rearview mirror (w/ memory) Exterior lights system Front control module Fuse 10a Fused run relay out Gnd Hot at all times Inside rearview mirror Ipm Junction block (left side of dash) Lamp feed Run relay S365 S366 Power Mirrors Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Power Mirrors Wiring Diagram for Jeep Grand Cherokee Overland 2008: 25 (in driver door) s344 (near left side of driver seat) g303 87a Circuit breaker 3 20a Defogger system Driver outside rearview mirror (at mirror) Drv mirr common Drv mirr horz drv Drv mirr vert drv Fuse 10a Fused b(+) Fused run/acc delay rly out Gnd Horiz Hot at all times Junction block (left side of dash) Mirror switch Pass mirr horz drv Pass mirr vert drv Passenger outside rearview mirror (at mirror) Run/ accessory delay relay S342 S343 S345 Vert
POWER SEATS Adjustable Pedal Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Adjustable Pedal Wiring Diagram for Jeep Grand Cherokee Overland 2008: 19 (near breakout to data link connector) g200 87a Adjustable pedal motor (at pedal assembly) Adjustable pedals motor forward Adjustable pedals motor rearward Adjustable pedals relay Adjustable pedals relay control Adjustable pedals relay output Adjustable pedals switch Driver Front control module Fuse 14 20a Ground Hot at all times Integrated power module (left side of engine compt) Interior lights system Ipm Panel lamps S204 Driver Power Seat Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Driver Power Seat Wiring Diagram for Jeep Grand Cherokee Overland 2008: 18 1) recliner up 2) recliner down 3) front up 4) front down 5) rear up 6) rear down 7) forward 8) rearward Circuit breaker 2 20a Driver front vertical seat adjuster motor (bottom of driver seat) Driver horizontal seat adjuster motor (below driver seat) Driver rear vertical seat adjuster motor (bottom of driver seat) Driver recliner seat adjuster motor (below driver seat) Driver seat switch Front vertical G303 (near left side of driver seat) Horizontal Hot at all times Junction block (left side of dash) Rear vertical Recliner S320 S374 W/ heated seats W/o heated seats Heated Seats Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Heated Seats Wiring Diagram for Jeep Grand Cherokee Overland 2008: 53 (below passenger seat) (near left side of driver seat) g303 A33 A997 Can b bus(+) Can b bus(-) Circuit breaker 2 20a Cluster Computer data lines system D54 D55 Fuse 20a Fused b(+) G300 (behind passenger seat) G303 (near left side of driver seat) Ground Heated seat module Hot at all times Information not available Junction block (left side of dash) Left cushion pad heater Left htd seat sw Left rear heated seat switch Left rear seat heater b(+) drv Left seat back heater Left seat heater b(+) drv Lin bus Lower switch bank Lr heated seat high ind drv Lr heated seat low ind drv Lr heated seat sw sense P177 P178 P187 P188 Power distribution center (left side of engine compartment) Red Right cushion pad heater Right htd seat sw Right rear heated seat switch Right rear seat heater b(+) drv Right seat back heater Right seat heater b(+) drv Rr heated seat high ind drv Rr heated seat low ind drv Rr heated seat sw sense Rr heated seat sw sns S364 S370 S372 S373 (below driver seat) S374 Z917 Passenger Power Seat Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Passenger Power Seat Wiring Diagram for Jeep Grand Cherokee Overland 2008: 15 1) recliner up 2) recliner down 3) forward 4) rearward Circuit breaker 2 20a G300 (behind passenger seat) Horizontal Hot at all times Junction block (left side of dash) Passenger horizontal seat adjuster motor (below passenger seat) Passenger recliner seat adjuster motor (right rear of passenger seat) Passenger seat switch Recliner S319 (w/ dvd) S364 (w/ heated seats) S374 W/ heated seats W/o heated seats
POWER TOP/SUNROOF Power Top/Sunroof Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Power Top/Sunroof Wiring Diagram for Jeep Grand Cherokee Overland 2008: 23 (on sunroof assembly) sunroof motor/module A932 Can b bus (+) Can b bus (-) Close Computer data lines system D54 D55 Fuse 2 15a Fused b (+) G301 (rear of left rear door) Ground Hot at all times Junction block (left side of dash) Open Red Sunroof close Sunroof open Sunroof sw sply Sunroof switch Sunroof vent Vent Z914
POWER WINDOWS Power Windows Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Power Windows Wiring Diagram for Jeep Grand Cherokee Overland 2008: 88 (in driver's door) s393 A929 A931 Can b bus(+) Can b bus(-) Circuit breaker 3 20a Computer Computer data lines system D54 D55 Data lines Dr exp rtn Driver door module (rear center of driver's door) Driver express window motor Driver window/ door lock switch Drv exp rtn Exp down drv Exp sw mux Exp sw rtn Exp up drv Fuse 10a Fused b(+) Fused run/acc G160 G161 G300 (behind passenger seat) G303 (near left side of driver seat) G775 G776 Ground Hall sens a Hall sens a sig Hall sens b Hall sens b sig Hall sens rtn Hall sens sply Hall sns sply Hot at all times Hot w/ run/accessory delay relay energized Junction block (left side of dash) Left door mux Left door rtn Left rear power window switch Left rear window motor (center of left rear door) Lf exp mux Lock out sw Lr wind (down) Lr wind (up) Passenger door module Passenger express window motor Passenger window/ door lock switch Q15 Q221 Q222 Q301 Q302 Q303 Q304 Q305 Q306 Q311 Q312 Q321 Q322 Q336 Q936 Q990 Q991 Q994 Red Rf exp mux Right door mux Right door rtn Right rear power window switch Right rear window motor (center of right rear door) Rr wind (down) Rr wind (up) S315 S325 S342 S343 S345 S395 (w/o memory) S399 System Z908 Z911 Z927
RADIO DVD Player Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for DVD Player Wiring Diagram for Jeep Grand Cherokee Overland 2008: 58 (not used) (not used) c311 A114 Audio out gnd Aux audio rtn/com Bus-bmm1 address Bus-bmm2 address C311 Can b bus (+) Can b bus (-) Computer data lines system D54 D55 D91 D92 Dvd monitor (center of headliner) Fuse 15a Fused b (+) Fused b(+) G300 (behind passenger seat) G301 (rear of left rear door) Gnd Ground Hot at all times I/p audio left I/r audio return I/r audio right Integrated power module (left side of engine compt) Junction block (left side of dash) Left audio aux Monitor/dvd media system (rear of center console) Remote ctrl fun 1 Remote ctrl fun 2 Remote ctrl function 1 Remote ctrl function 2 Right audio aux S319 S321 Shield Video play sig Video rtn Video sig X114 X18 X19 X515 X523 X524 X555 X915 X918 X964 X965 X969 X973 X974 X975 Z909 Hands Free Module Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Hands Free Module Wiring Diagram for Jeep Grand Cherokee Overland 2008: 65 (or nca) A114 Can b bus(+) Can b bus(-) Comm audio out Comm audio output Computer data lines system D54 D55 Fuse 15a Fused b(+) G200 (near breakout to data link connector) Ground Hands free module (right kick panel) Hot at all times Inside rearview mirror Integrated power module (left side of engine compt) Junction block (left side of dash) Left audio out Left audio output Media port (uci) Microphone 1 in(+) Microphone 2 in(+) Microphone feed Microphone in(-) Nca Pwr feed passthrough Radio Red Right audio out Right audio output S166 S167 S202 S213 Sensor ground Tan Uci audio lt in Uci audio ref Uci audio reference Uci audio rt in Uci device detect Uci ext receive Uci ext transmit Uci id Uci shield X430 X431 X432 X435 X436 X437 X439 X440 X441 X703 X704 X712 X722 X792 X793 X795 X835 Z433 Z907 Radio Wiring Diagram, Base for Jeep Grand Cherokee Overland 2008 List of elements for Radio Wiring Diagram, Base for Jeep Grand Cherokee Overland 2008: 51 (below left front door opening) s389 (below right front door opening) s391 A118 Antenna Can b bus (+) Can b bus (-) Com audio out Computer data lines system D54 D55 Fuse 20a Fused b(+) G200 (near breakout to data link connector) Gnd Hands free module (if equipped) (right kick panel) Hot at all times Integrated power module (left side of engine compt) Junction block (left side of dash) Left audio out Left front door speaker Left instrument panel speaker Left rear door speaker Lf speaker (+) Lf speaker (-) Lr audio (+) Lr audio (-) Nca Radio Rf speaker (+) Rf speaker (-) Right audio out Right front door speaker Right instrument panel speaker Right rear door speaker Rr audio (+) Rr audio (-) S213 S390 (below left front door opening) S392 (below right front door opening) X201 X291 X292 X51 X52 X57 X58 X703 X704 X795 Z202 Z920
SHIFT INTERLOCK Shift Interlock Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Shift Interlock Wiring Diagram for Jeep Grand Cherokee Overland 2008: 61 (5.7l: right rear of engine) (4.7l: right side of engine) s141 3.0l Autostick up/ down (ers) sns Autostick up/ down (ers) sns c3 B15 B16 Brake sw 1 sig Brake sw 2 sig Brake sw sig Can c bas (+) Can c bas (-) Can c bus (+) Can c bus (-) Computer data lines system D64 D65 Electrohydraulic control unit assembly (right side of transmission) Engine control module (3.0l) Except 3.0l Front control module Fuse 10a Fused ign sw Fused ign sw out (run-start) G100 (left rear of engine compt) G200 (near breakout to data link connector) Ground Hot in run or start Ignition wireless node Integrated power module (left side of engine compt) Interior lights system Ipm Junction block (left side of dash) K900 P/n switch Panel lamp driver Pnk/ f1 Powertrain control module (except 3.0l) (right rear of engine compt) Rfe S101 (in headlamp & dash harness) S106 S132 (rfe) S134 (3.7l) S212 Sens ground Shift lever assembly (base of shift lever) Stop lamp switch (lower left side of dash) T13 T41 T42 T54 Transmission control module (nag1) (below left side of dash) Transmission solenoid/trs assembly (rfe) (left side of transmission) Transmission temp sensor sig Transmission temperature sensor Trs park sig Trs t1 sense Trs t2 sense Trs t3 sense Trs t41 sense Trs t42 sense Wireless ignition node
STARTING/CHARGING Charging Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Charging Wiring Diagram for Jeep Grand Cherokee Overland 2008: 27 3.0l A209 A803 B (+) Battery D509 Diesel Engine control module Except 3.0l Fuse 29 20a Fused b (+) G104 (left side of engine compt) G105 (lower left rear of engine) Gas Gen field Gen sense Generator Glow plug module Integrated power module (left side of engine compt) K125 Lin bus Power distribution center (left side of engine compt) Powertrain control module (right rear of engine compt) Red S164 (in headlamp & dash harness) S167 Starter Starting Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Starting Wiring Diagram for Jeep Grand Cherokee Overland 2008: 83 (if equipped) remote start relay (run-start) 3.0l 87a B (+) B15 Battery Brake sw sig Brake sw sig 1 Bus + Bus - C bus (+) c bus (-) Can c bus + Can c bus - Charging circuit Computer data lines system D64 D65 Electrohydraulic control unit (nag1) (3.7l: right side of transmission) Engine control module Except 3.0l F20 F201 F26 Front control module Fuse 10a Fuse 20a Fuse 40a Fused b (+) Fused ign sw out (run- start) Fused ign sw out (run-start) G104 (left side of engine compt) G105 (lower left rear of engine) G200 (near breakout to data link connector) Gnd Hold-in Ign sw out- put (start) Ign sw output c1 (start) Ign sw output c2 (start) Integrated power module (left side of engine compt) Ipm Junction block (left side of dash) K617 Left front tire pressure transponder (except 3.7l) (left front wheelwell) Monitor lan Occupant restraint controller module (below center console) P/n switch Pnk/tan Power distribution center (left side of engine compt) Power distribution system Powertrain control module (right rear of engine compt) Pull-in Red Red/tan Remote start rly ctrl Remote start) Right front tire pressure transponder (except 3.7l) (right front wheelwell) Right rear tire pressure transponder (under right rear of vehicle) Rly ctrl S101 S120 S121 S126 S153 S199 S210 S234 (except wireless) Sens gnd Sens sig Shift lever assembly (base of shift lever) Starter Starter motor relay Stop lamp switch (lower left side of dash) T13 T41 T54 T752 Transmission control module (below left side of dash) Transmission solenoid/ trs assembly (rfe) (left side of transmission) Transmission temperature sensor Trs park sig Trs t41 sense Wireless ignition node
SUPPLEMENTAL RESTRAINTS Supplemental Restraints Wiring Diagram (1 of 2) for Jeep Grand Cherokee Overland 2008 List of elements for Supplemental Restraints Wiring Diagram (1 of 2) for Jeep Grand Cherokee Overland 2008: 68 (rear of steering wheel pad) (right side of passenger seat) passenger seat belt tensioner Bus (+) Bus (-) Computer data lines system D64 D65 Driver air bag squib 1 Driver air bag squib 2 Driver seat belt tensioner (left side of driver seat) F100 F201 Fuse 10a G201 (under center console) Gnd Ground Hot at all times Hot in on or start Ign sw Integrated power module (left side of engine compt) Left front impact sensor (left front of engine compt) Left side impact sensor 1 (left "b" pillar) Line Line 1 Line 2 Lt sens 2 gnd Lt sens 2 sig Occupant restraint controller module (below center console) Passenger air bag squib (behind right side of dash) R13 R14 R15 R16 R17 R18 R19 R20 R263 R42 R43 R44 R45 R503 R504 R505 R506 R61 R62 R63 R64 R79 R80 R81 R82 Right front impact sensor (right front of engine compt) Rt sens 2 gnd Rt sens 2 sig Run rly Sens 1 gnd Sens 1 sig Sens data Sens gnd Sens sig Signal Steering control module (at steering wheel) Voltage Z104 Z261 Supplemental Restraints Wiring Diagram (2 of 2) for Jeep Grand Cherokee Overland 2008 List of elements for Supplemental Restraints Wiring Diagram (2 of 2) for Jeep Grand Cherokee Overland 2008: 21 Bus (+) Bus (-) Cluster Computer data lines system Driver seat belt switch Driver seat track position sensor (below driver seat) G303 (near left side of driver seat) Ground Left side curtain air bag (left rear body) Left side impact sensor 2 (rear of left rear door) Line 1 Line 2 Passenger seat belt switch Right side curtain air bag (right rear body) Right side impact sensor 1 (right "b" pillar) Right side impact sensor 2 (behind right rear door) S320 Seat belt sw sens Sens data Signal Voltage
TRANSMISSION
3.0L DIESEL 3.0L Diesel, Transmission Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for 3.0L Diesel, Transmission Wiring Diagram for Jeep Grand Cherokee Overland 2008: 64 (near breakout to data link connector) g200 (not used) 1-2/ 4-5 sol 1-2/4-5 sol ctrl 2-3 sol 2-3 sol ctrl 3-4 sol 3-4 sol ctrl 87a Brake sw sig Can c bus (+) Can c bus (-) Computer data lines system D64 D65 Drv panel lamps Electrohydraulic control unit assembly (right side of transmission) F942 Front control module Fuse 10a Fuse ignition switch output (run/start) G100 (left rear of engine compt) Ground Hot in run or start Ign sw (run-start) Integrated power module (left side of engine compt) Interior lights system Ipm Junction block (left side of dash) K900 Mod press sol ctrl Modu- lation pres- sure sol N2 in spd sens 1 N3 input spd sens 2 P/n switch Powertrain control module (right rear of engine compt) S106 S134 S136 S212 Sens ground Sensor gnd Shift lever assembly (base of shift lever) Shift press sol ctrl T13 T54 T60 T70 T71 T72 T73 T74 T75 T76 T77 T78 Tcc sol ctrl Trans temp sens sig Trans- mission temperature sensor Transmission control module (below left side of dash) Transmission relay Trs park sig Wireless ignition node Z904
3.7L 3.7L, Transmission Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for 3.7L, Transmission Wiring Diagram for Jeep Grand Cherokee Overland 2008: 64 (near breakout to data link connector) g200 (not used) 1-2/ 4-5 sol 1-2/4-5 sol ctrl 2-3 sol 2-3 sol ctrl 3-4 sol 3-4 sol ctrl 87a Brake sw sig Can c bus (+) Can c bus (-) Computer data lines system D64 D65 Drv panel lamps Electrohydraulic control unit assembly (right side of transmission) F942 Front control module Fuse 10a Fuse ignition switch output (run/start) G100 (left rear of engine compt) Ground Hot in run or start Ign sw (run-start) Integrated power module (left side of engine compt) Interior lights system Ipm Junction block (left side of dash) K900 Mod press sol ctrl Modu- lation pres- sure sol N2 in spd sens 1 N3 input spd sens 2 P/n switch Powertrain control module (right rear of engine compt) S106 S134 S136 S212 Sens ground Sensor gnd Shift lever assembly (base of shift lever) Shift press sol ctrl T13 T54 T60 T70 T71 T72 T73 T74 T75 T76 T77 T78 Tcc sol ctrl Trans temp sens sig Trans- mission temperature sensor Transmission control module (below left side of dash) Transmission relay Trs park sig Wireless ignition node Z904
4.7L 4.7L, 4WD Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for 4.7L, 4WD Wiring Diagram for Jeep Grand Cherokee Overland 2008: 72 (on under- body harness) (under left front of vehicle) (except base) s301 4wd neutral ind A909 A926 A927 Can c bus (+) Can c bus (-) Computer data lines system D64 D65 Driver panel lamps Drivetrain sens return Drivetrain sens rtn Elsd Except base Except elsd F921 Final drive control module (below left rear seat) Front diff sol ctrl Front differential solenoid (front of frame) Fuse 10a Fuse 20a Fuse 30a Fused b(+) Fused run rly output G200 (near breakout to data link connector) G302 (below left rear seat) G95 Ground Hot at all times Hot in run or start Hot w/ run relay energized Ign sw (run/start) Integrated power module (left side of engine compt) Interior lights system Junction block (left side of dash) K504 K594 K977 Mode select Mode sens sig Mode sensor sig Power distribution center (left side of engine compt) Rear diff sol ctrl Rear differential solenoid Red Red/tan S212 S311 (premium) S335 S337 S338 S339 S360 (left rear of headliner) Sbs Shift mtr ctrl a Shift mtr ctrl b T301 T306 T312 T313 T315 T316 T317 Trans case mtr lock Transfer case motor (at transfer case) Transfer case mtr lock sig Transfer case selector switch Z901 Z902 Z913 4.7L, A/T Wiring Diagram (1 of 2) for Jeep Grand Cherokee Overland 2008 List of elements for 4.7L, A/T Wiring Diagram (1 of 2) for Jeep Grand Cherokee Overland 2008: 36 2-4 press 2c sol ctrl 4c prs sw sns 4c sol ctrl 87a Engine controls system Fuse 20a G100 (left rear of engine compt) Hot at all times L/r press L/r sol ctrl Line press sens Line pressure sensor (right rear of transmission) Ms sol ctrl Od press Od sol ctrl Power distribution center (left side of engine compt) Pr- ess sol ctrl S125 S136 S140 (rear of engine) S141 (4.7l: right side of engine) (5.7l: right rear of engine) S145 (right rear of engine compt) S150 (4.7l & 5.7l: right rear of engine) Sens gnd Temp sens Tran ctrl rly out Transmission control relay Transmission solenoid/trs assembly (left side of transmission) Trs t1 sns Trs t2 sns Trs t3 sns Trs t41 sns Trs t42 sns Ud press Ud sol ctrl 4.7L, A/T Wiring Diagram (2 of 2) for Jeep Grand Cherokee Overland 2008 List of elements for 4.7L, A/T Wiring Diagram (2 of 2) for Jeep Grand Cherokee Overland 2008: 76 (left side of engine compt) (near breakout to data link connector) g200 2c press sw sense 2c sol ctrl 4c press sw sense 4c sol ctrl Autostick up/down Brake sw sig Can c bus (+) Can c bus (-) Computer data lines system Drv panel lamps F856 Front control module Fuse ignition switch output (run/start) G102 Ground Ign sw (run-start) Ign sw output Input speed sens Input speed sensor (left side of trans- mission) Integrated power module (left side of engine compt) Interior lights system Ipm K900 L/r press sw sns L/r sol ctrl Line press sens sig Ms sol ctrl Od press sw sense Output speed sens Output speed sensor (left side of trans- mission) Overdrive sol ctrl Powertrain control module (right rear of engine compt) Pressure ctrl sol S132 S144 (57l & 6.7l: front of transmission) (4.7l: left side of transmission) S147 S212 Sens gnd Sens ground Sensor gnd Shift lever assembly (base of shift lever) T118 T13 T14 T140 T147 T15 T16 T20 T219 T259 T29 T38 T41 T42 T48 T50 T52 T54 T59 T60 Trans ctrl relay Trans ctrl rly out Trans temp sens Trs park sig Trs t1 sense Trs t2 sense Trs t3 sense Trs t41 sense (p/n) Trs t42 sense Ud press sw sense Ud sol ctrl Wireless ignition node Z903
5.7L 5.7L, 4WD Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for 5.7L, 4WD Wiring Diagram for Jeep Grand Cherokee Overland 2008: 72 (on under- body harness) (under left front of vehicle) (except base) s301 4wd neutral ind A909 A926 A927 Can c bus (+) Can c bus (-) Computer data lines system D64 D65 Driver panel lamps Drivetrain sens return Drivetrain sens rtn Elsd Except base Except elsd F921 Final drive control module (below left rear seat) Front diff sol ctrl Front differential solenoid (front of frame) Fuse 10a Fuse 20a Fuse 30a Fused b(+) Fused run rly output G200 (near breakout to data link connector) G302 (below left rear seat) G95 Ground Hot at all times Hot in run or start Hot w/ run relay energized Ign sw (run/start) Integrated power module (left side of engine compt) Interior lights system Junction block (left side of dash) K504 K594 K977 Mode select Mode sens sig Mode sensor sig Power distribution center (left side of engine compt) Rear diff sol ctrl Rear differential solenoid Red Red/tan S212 S311 (premium) S335 S337 S338 S339 S360 (left rear of headliner) Sbs Shift mtr ctrl a Shift mtr ctrl b T301 T306 T312 T313 T315 T316 T317 Trans case mtr lock Transfer case motor (at transfer case) Transfer case mtr lock sig Transfer case selector switch Z901 Z902 Z913 5.7L, A/T Wiring Diagram (1 of 2) for Jeep Grand Cherokee Overland 2008 List of elements for 5.7L, A/T Wiring Diagram (1 of 2) for Jeep Grand Cherokee Overland 2008: 36 2-4 press 2c sol ctrl 4c prs sw sns 4c sol ctrl 87a Engine controls system Fuse 20a G100 (left rear of engine compt) Hot at all times L/r press L/r sol ctrl Line press sens Line pressure sensor (right rear of transmission) Ms sol ctrl Od press Od sol ctrl Power distribution center (left side of engine compt) Pr- ess sol ctrl S125 S136 S140 (rear of engine) S141 (4.7l: right side of engine) (5.7l: right rear of engine) S145 (right rear of engine compt) S150 (4.7l & 5.7l: right rear of engine) Sens gnd Temp sens Tran ctrl rly out Transmission control relay Transmission solenoid/trs assembly (left side of transmission) Trs t1 sns Trs t2 sns Trs t3 sns Trs t41 sns Trs t42 sns Ud press Ud sol ctrl 5.7L, A/T Wiring Diagram (2 of 2) for Jeep Grand Cherokee Overland 2008 List of elements for 5.7L, A/T Wiring Diagram (2 of 2) for Jeep Grand Cherokee Overland 2008: 76 (left side of engine compt) (near breakout to data link connector) g200 2c press sw sense 2c sol ctrl 4c press sw sense 4c sol ctrl Autostick up/down Brake sw sig Can c bus (+) Can c bus (-) Computer data lines system Drv panel lamps F856 Front control module Fuse ignition switch output (run/start) G102 Ground Ign sw (run-start) Ign sw output Input speed sens Input speed sensor (left side of trans- mission) Integrated power module (left side of engine compt) Interior lights system Ipm K900 L/r press sw sns L/r sol ctrl Line press sens sig Ms sol ctrl Od press sw sense Output speed sens Output speed sensor (left side of trans- mission) Overdrive sol ctrl Powertrain control module (right rear of engine compt) Pressure ctrl sol S132 S144 (57l & 6.7l: front of transmission) (4.7l: left side of transmission) S147 S212 Sens gnd Sens ground Sensor gnd Shift lever assembly (base of shift lever) T118 T13 T14 T140 T147 T15 T16 T20 T219 T259 T29 T38 T41 T42 T48 T50 T52 T54 T59 T60 Trans ctrl relay Trans ctrl rly out Trans temp sens Trs park sig Trs t1 sense Trs t2 sense Trs t3 sense Trs t41 sense (p/n) Trs t42 sense Ud press sw sense Ud sol ctrl Wireless ignition node Z903
6.1L 6.1L, 4WD Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for 6.1L, 4WD Wiring Diagram for Jeep Grand Cherokee Overland 2008: 72 (on under- body harness) (under left front of vehicle) (except base) s301 4wd neutral ind A909 A926 A927 Can c bus (+) Can c bus (-) Computer data lines system D64 D65 Driver panel lamps Drivetrain sens return Drivetrain sens rtn Elsd Except base Except elsd F921 Final drive control module (below left rear seat) Front diff sol ctrl Front differential solenoid (front of frame) Fuse 10a Fuse 20a Fuse 30a Fused b(+) Fused run rly output G200 (near breakout to data link connector) G302 (below left rear seat) G95 Ground Hot at all times Hot in run or start Hot w/ run relay energized Ign sw (run/start) Integrated power module (left side of engine compt) Interior lights system Junction block (left side of dash) K504 K594 K977 Mode select Mode sens sig Mode sensor sig Power distribution center (left side of engine compt) Rear diff sol ctrl Rear differential solenoid Red Red/tan S212 S311 (premium) S335 S337 S338 S339 S360 (left rear of headliner) Sbs Shift mtr ctrl a Shift mtr ctrl b T301 T306 T312 T313 T315 T316 T317 Trans case mtr lock Transfer case motor (at transfer case) Transfer case mtr lock sig Transfer case selector switch Z901 Z902 Z913 6.1L, A/T Wiring Diagram (1 of 2) for Jeep Grand Cherokee Overland 2008 List of elements for 6.1L, A/T Wiring Diagram (1 of 2) for Jeep Grand Cherokee Overland 2008: 36 2-4 press 2c sol ctrl 4c prs sw sns 4c sol ctrl 87a Engine controls system Fuse 20a G100 (left rear of engine compt) Hot at all times L/r press L/r sol ctrl Line press sens Line pressure sensor (right rear of transmission) Ms sol ctrl Od press Od sol ctrl Power distribution center (left side of engine compt) Pr- ess sol ctrl S125 S136 S140 (rear of engine) S141 (4.7l: right side of engine) (5.7l: right rear of engine) S145 (right rear of engine compt) S150 (4.7l & 5.7l: right rear of engine) Sens gnd Temp sens Tran ctrl rly out Transmission control relay Transmission solenoid/trs assembly (left side of transmission) Trs t1 sns Trs t2 sns Trs t3 sns Trs t41 sns Trs t42 sns Ud press Ud sol ctrl 6.1L, A/T Wiring Diagram (2 of 2) for Jeep Grand Cherokee Overland 2008 List of elements for 6.1L, A/T Wiring Diagram (2 of 2) for Jeep Grand Cherokee Overland 2008: 76 (left side of engine compt) (near breakout to data link connector) g200 2c press sw sense 2c sol ctrl 4c press sw sense 4c sol ctrl Autostick up/down Brake sw sig Can c bus (+) Can c bus (-) Computer data lines system Drv panel lamps F856 Front control module Fuse ignition switch output (run/start) G102 Ground Ign sw (run-start) Ign sw output Input speed sens Input speed sensor (left side of trans- mission) Integrated power module (left side of engine compt) Interior lights system Ipm K900 L/r press sw sns L/r sol ctrl Line press sens sig Ms sol ctrl Od press sw sense Output speed sens Output speed sensor (left side of trans- mission) Overdrive sol ctrl Powertrain control module (right rear of engine compt) Pressure ctrl sol S132 S144 (57l & 6.7l: front of transmission) (4.7l: left side of transmission) S147 S212 Sens gnd Sens ground Sensor gnd Shift lever assembly (base of shift lever) T118 T13 T14 T140 T147 T15 T16 T20 T219 T259 T29 T38 T41 T42 T48 T50 T52 T54 T59 T60 Trans ctrl relay Trans ctrl rly out Trans temp sens Trs park sig Trs t1 sense Trs t2 sense Trs t3 sense Trs t41 sense (p/n) Trs t42 sense Ud press sw sense Ud sol ctrl Wireless ignition node Z903
WARNING SYSTEMS Chime Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Chime Wiring Diagram for Jeep Grand Cherokee Overland 2008: 63 (in headlamp & dash harness) s103 (lower center of liftgate) s352 (near breakout for instrument cluster) s206 B20 Brake fluid level sensor (left rear of engine compt) Brk fluid level sw sns Can b bus (+) Can b bus (-) Can b bus(+) Can b bus(-) Cluster Cluster) Computer data lines system D500 D54 D55 Driver door latch (rear of driver door) Driver door module (rear center of driver's door) Driver seat belt switch Flip-up glass ajar sw sens Flip-up glass ajar sw sns Flip-up glass latch (lower center of liftgate) Front control module (left side of engine compt) Fuse 10a Fused b(+) Fused ign sw out (run-start) G100 (left rear of engine compt) G200 (near breakout to data link connector) G300 (behind passenger seat) G301 (rear of left rear door) G303 (near left side of driver seat) G74 G75 Ground Hot at all times Hot in run or start Junction block (left side of dash) Left rear door latch (left rear door) Lf door ajar sw sens Liftgate ajar sw sens Liftgate door latch Light switch Lin bus Lr door ajar sw sens Parking brake switch (below center console) Passenger door latch (in passenger door) Passenger door module Prk brk sw sense Rear window wiper motor (lower center of liftgate) Rf door ajar sw sens Right rear door latch (right rear door) Rr door ajar sw sens S102 (in headlamp & dash harness) S129 S211 S228 S318 S320 S341 S349 S353 Seat belt sw sense Steering control module (at steering wheel) Tire Pressure Monitoring Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Tire Pressure Monitoring Wiring Diagram for Jeep Grand Cherokee Overland 2008: 34 (below left rear seat) g302 (except wireless) s234 87a Can b bus (+) Can b bus (-) Can c bus (+) Can c bus (-) Cluster Com-lin tire pres monitor lan Com-lin tpm lan Computer data lines system D54 D55 D64 D65 Front control module (left side of engine compt) Fuse 10a Fuse 30a Fused run relay output G103 (right side of engine compt) Ground Hot at all times Junction block (left side of dash) Left front tire pressure transponder (except 3.7l) (left front wheelwell) Power distribution center (left side of engine compt) Right front tire pressure transponder (except 3.7l) (right front wheelwell) Right rear tire pressure transponder (under right rear of vehicle) Run relay S120 S122 S135 S340 Tpm indicator Wireless ignition node
WIPER/WASHER Front & Rear Wiper/Washer Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Front & Rear Wiper/Washer Wiring Diagram for Jeep Grand Cherokee Overland 2008: 50 87a Can b bus (+) Can b bus (-) Cluster Computer data lines system D500 D54 D55 Detect Electronics Flip-up glass ajar sw sense Flip-up glass latch (lower center of liftgate) Front control module Front washer pump motor ctrl Front wiper high/ low relay high speed output Front wiper park sw sns Fuse 15a G100 (left rear of engine compt) G103 (right side of engine compt) G301 (rear of left rear door) Hot at all times Integrated power module (left side of engine compt) Junction block (left side of dash) Lin bus Rear washer pump motor ctrl Rear window wiper motor (lower center of liftgate) Rear wiper motor ctrl c2 Rear wiper motor delay sig Rear wiper relay Rear wiper relay ctrl ipm Relay ctrl S111 S129 S352 (lower center of liftgate) S353 Steering control module (at steering wheel) W10 W12 W13 W14 W20 Washer fluid level sensor (left front of engine compt) Washer fluid level sensor sig c1 Windshield washer pump (left front of engine compt) Windshield wiper motor (top left of plenum) Wiper control Wiper high/low Wiper high/low relay Wiper on/off Wiper on/off relay Rain Sensor Wiring Diagram for Jeep Grand Cherokee Overland 2008 List of elements for Rain Sensor Wiring Diagram for Jeep Grand Cherokee Overland 2008: 9 (info not available) Can b bus (+) Can b bus (-) Computer data lines system Fused rly out G301 (rear of left rear door) Ground Rain sensor (front of headliner) S366
