Diagram sections — 31 (79 total)
AIR CONDITIONING ANTI-LOCK BRAKES ANTI-THEFT BODY CONTROL MODULES COMPUTER DATA LINES CRUISE CONTROL DEFOGGERS ELECTRONIC SUSPENSION 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 TRUNK, TAILGATE, FUEL DOOR WARNING SYSTEMS WIPER/WASHER
AIR CONDITIONING Automatic A/C Wiring Diagram (1 of 2) for Chevrolet TrailBlazer 2009 List of elements for Automatic A/C Wiring Diagram (1 of 2) for Chevrolet TrailBlazer 2009: 78 (in i/p harness, 15.5 cm from reciculation actuator connector) (in i/p harness, 5 cm from mode motor breakout) 5 volt ref A/c on ind A10 A11 A12 Air temp door ctrl Air temp sens sig Ambient air temp Ambient air temperature sensor (on left center of radiator support) Ambient light Ambient light/ sun load sensor (on top center of dash, near base of windshield) B10 B11 B12 Batt Batt pos volt Blower motor (below right side of dash) Blower motor control module (below right side of dash) Blwr fuse 35 40a Blwr mtr ctrl Blwr mtr spd ctrl Class 2 Def door pos sig Defogger ind Defrost actuator (on upper dash carrier) Defrost door ctrl Dimming ctrl G102 (left side of engine compt, near rear of underhood fuse block) G201 G302 (on lower left "b" pillar) Ground Hot at all times Hot in run Hvac control module (center of dash) Hvac i fuse 39 10a Hvac-b fuse 36 10a Ign 3 volt Inside air temp ctrl Inside air temp sig Inside air temperature sensor assembly (in left "b" pillar) Interior lights system J202 J216 J217 J271 (in i/p harness, 14.5 cm from dash compt lamp breakout) J302 L air temp sens sig Left air temperature actuator (below left center of dash) Left sensor Left temperature control Logic Low press sens sig Low reference Lower left air temperature sensor (left of lower console, in air duct) Lower right air temperature sensor (in right lower console, in air duct) Lwr rt air temp sig Mode actuator (behind upper left center of dash) Mode door ctrl Mode door pos sig Nca R air temp sens sig Rear fuse block (below left rear seat) Recirc dr cntrl Recirc dr pos sig Recirculation actuator (on right side of dash) Recirculation ind Red Right air temperature actuator (behind right center of dash) Right sensor Right temperature control Splice pack jx201 (at lower right front of lower console) Tan Temp dr pos sig Underhood fuse block (above left front wheelwell) Upper left air temperature sensor (left center of dash, in air duct) Upper right air temperature sensor (right center of dash, in air duct) Automatic A/C Wiring Diagram (2 of 2) for Chevrolet TrailBlazer 2009 List of elements for Automatic A/C Wiring Diagram (2 of 2) for Chevrolet TrailBlazer 2009: 52 (left front of engine compt, on left side of radiator support) g103 (not used) 5 volt ref A/c compressor clutch (on a/c compressor) A/c fuse 30 10a A/c low pressure switch (at right rear of engine compt, on accumulator) A/c press sig A/c refrigerant pressure sensor (on high pressure line, near a/c compressor) A/c relay 44 A12 Ambient light sens Aux blwr hi spd Aux blwr med spd Aux mode dr Auxiliary hvac control module (under lower console) Auxiliary mode actuator (under lower console) B11 B12 Batt Body control module (bcm) (beneath left rear seat, on rear fuse block) Class 2 data Comp rly cntrl Computer data lines system D11 Data link connector (on bottom of left side of dash) Ect sens sig Engine control module (ecm) (4.2l: lower left front of engine) (5.3l & 6.0l: below battery) Engine coolant temperature (ect) sensor (5.3l & 6.0l: on left front of engine block, near generator) (4.2l: lower right rear of engine block) G107 (on lower left side of engine) G201 Ground Hot at all times Hot in on or start Ign e fuse 22 10a J103 J206 J232 (w/ immobilizer) (in i/p harness, 10 cm from breakout to steering wheel coils) J307 Logic Low ref Low reference Lt sunload sens sig Mode Off Rear blower motor (under center of dash) Rear blower resistor (attached to rear blower motor) Red Rt sunload sens sig Serial data Splice pack jx201 (at lower right front of lower console) Splice pack jx205 (behind left of dash, near headlamp switch connector) Underhood fuse block (above left front wheelwell) Compressor Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Compressor Wiring Diagram for Chevrolet TrailBlazer 2009: 24 5-volt reference A/c compressor clutch (on a/c compressor) A/c fuse 30 10a A/c lo press sens sig A/c low pressure switch (at right rear of engine compt, on accumulator) A/c refrigerant pressure sensor (on high pressure line, near a/c compressor) A/c relay 44 A12 B11 Clutch rel ctrl Computer data lines system D11 Engine control module (ecm) (4.2l: lower left front of engine) (5.3l & 6.0l: below battery) G103 (left front of engine compt, on left side of radiator support) G107 (on lower left side of engine) Hot at all times Hot in run or start Hvac control module (center of dash) Ign e fuse 22 10a J103 Low reference Pressure sensor Serial data Underhood fuse block (above left front wheelwell) Manual A/C Wiring Diagram (1 of 2) for Chevrolet TrailBlazer 2009 List of elements for Manual A/C Wiring Diagram (1 of 2) for Chevrolet TrailBlazer 2009: 67 (below right side of dash, near blower motor) blower motor resistor assembly (in i/p harness (15.5 cm from reci- rculation actuator connector) (in i/p harness (5 cm from mode motor breakout) (not used) 5 volt ref A red A10 A11 A12 B10 B11 B12 Batt Blower motor (below right side of dash) Blower motor relay Blwr fuse 35 40a Class 2 Control mode Defogger Defrost actuator (on upper dash carrier) Dimming ctrl Dr cntrl Dr ctrl Dr pos sig Enable control G102 (left side of engine compt, near rear of underhood fuse block) G201 Ground High Hot at all times Hot in run Hvac b fuse 36 10a Hvac control module (center of dash) Hvac fuse 44 30a Hvac i fuse 39 10a Ign 3 volt Interior lights system J201 J202 J211 J216 J217 J250 Left air temperature actuator (below left center of dash) Left temperature control Logic Low Low reference Med1 Med2 Med3 Mode actuator (behind upper left center of dash) Mode dr ctrl Motor control Off Rear fuse block (below left rear seat) Recirculation Recirculation actuator (on right side of dash) Red Right air temperature actuator (behind right center of dash) Right temperature control Sensor signal Splice pack jx201 (at lower right front of lower console) Tan Temp dr ctrl Under- hood fuse block (above left front wheelwell) Used) (not Manual A/C Wiring Diagram (2 of 2) for Chevrolet TrailBlazer 2009 List of elements for Manual A/C Wiring Diagram (2 of 2) for Chevrolet TrailBlazer 2009: 46 (left front of engine compt, on left side of radiator support) g103 (lower left front of engine) (not used) 5 volt ref A/c compressor clutch (on a/c compressor) A/c fuse 30 10a A/c low pressure switch (at right rear of engine compt, on accumulator) A/c press sig A/c refrigerant pressure sensor (on high pressure line, near a/c compressor) A/c relay 44 Auxiliary console mode actuator (under lower console) Auxiliary hvac control module (under lower console) Auxiliary hvac enable control Auxiliary mode door control Bi lvl Comp rly cntrl Computer data lines system D11 Data link connector (on bottom left side of dash) Ect sens sig Engine control module (ecm) Engine coolant temperature (ect) sensor (lower right rear of engine block) Floor G107 (on lower left side of engine) G201 Ground Hot at all times Hot in run or start Ign e fuse 22 10a Ignition 3 voltage Interior lights system J103 J206 J232 (w/ immobilizer) (i/p harness, 10 cm from breakout to steering wheel coils) J307 Lamps dimming ctrl Lo ref Logic Low ref Power ind sig Pwr ind Serial data Splice pack jx201 (at lower right front of lower console) Splice pack jx205 (behind left of dash, near headlight switch connector) Underhood fuse block (above left front wheelwell) Upper
ANTI-LOCK BRAKES Anti-lock Brakes Wiring Diagram (1 of 2) for Chevrolet TrailBlazer 2009 List of elements for Anti-lock Brakes Wiring Diagram (1 of 2) for Chevrolet TrailBlazer 2009: 54 5 volt ref Abs fuse 33 60a Abs pump B10 Batt pos volt Brake fluid level sig Brake fluid level switch (on brake master cylinder fluid reservoir) Brake fuse 51 10a C11 Cruise control system Delivered torq sig Electronic brake control module (ebcm) (on inner left frame rail, beside transmission) G107 (on lower left side of engine) G304 (on outside of left frame rail, near electronic brake control module) Gnd Hot at all times Hot in run Hot in run or start Hvac 1 fuse 39 10a Ign 3 volt Ign e fuse 22 10a J205 J239 Lateral accel sig Left front wheel speed sensor (on left front wheel hub assembly) Left rear wheel speed sensor (attached to left rear wheel hub) Lf wh spd low ref Lf wh spd sig Low ref Lr wh spd low ref Lr wh spd sig Nca Pnk Rear fuse block (below left rear seat) Red Req torq sig Rf wh spd low ref Right front wheel speed sensor (on right front wheel hub assembly) Right rear wheel speed sensor (attached right rear wheel hub) Rr wh spd low ref Rr wh spd sig Serial data Steer wh pos sig a Steering wh pos b Steering wh pos sig Stop lamp switch (on brake pedal assembly) Tan Tcc brake sw sig Trac cntrl sw sig Underhood fuse block (above left front wheelwell) Vses fuse 61 60a Yaw rate sens sig Yaw ring cntrl Yaw ring raster ctrl Anti-lock Brakes Wiring Diagram (2 of 2) for Chevrolet TrailBlazer 2009 List of elements for Anti-lock Brakes Wiring Diagram (2 of 2) for Chevrolet TrailBlazer 2009: 32 (on bottom left side of dash) data link connector (dlc) Abs ind Anti-theft system B10 Body control module (bcm) (beneath left rear seat, on rear fuse block) Brake ind Delivered torque signal Engine control module (ecm) (4.2l: lower left front of engine) (except 4.2l: below battery) Flat wire G102 (left side of engine compt, near rear of underhood fuse block) Gnd Hot at all times Instrument panel cluster Ipc/dic fuse 24 10a J202 J232 (w/ anti-theft system) (in i/p harness, 10 cm from breakout to steering wheel coils) Logic Nca Park brake switch (on parking brake assembly) Prk brk sig Rear fuse block (below left rear seat) Requested torque signal Serial data Sig a Sig b Splice pack jx205 (behind left of dash, near headlight switch connector) Steering wheel speed/ position sensor (at base of steering column) Traction control switch Underhood fuse block (above left front wheelwell) Volt ign 3 W/ anti-theft system Yaw rate & lateral acceleration sensor (below front passenger's seat)
ANTI-THEFT Forced Entry Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Forced Entry Wiring Diagram for Chevrolet TrailBlazer 2009: 66 (behind left of dash, near headlight switch connector) splice pack jx205 (in body harness, under right rear seat) splice pack jx306 A10 A11 A12 A14 B x1 B10 B11 B13 B17 Bat positive voltage Body control module (bcm) (beneath left rear seat, on rear fuse block) C x1 Class 2 data Data link connector (dlc) (on bottom left side of dash) Door ajar sig Door ajar switch Driver door latch (in left front door) Driver door lock/ window switch E12 Engine control module (ecm) (4.2l: lower left front of engine) (5.3l & 6.0l: below battery) Exterior lights system F10 Flat wire G302 (on lower G303 (on lower Ground Head- lights system Headlamp relay ctrl Horn relay ctrl Horns system Hot at all times Instrument panel cluster (ipc) J302 J303 Key switch Key switch sig Left "b" pillar) Left rear door latch (in left rear door) Liftgate ajar sig Liftgate ajar switch (in liftgate) Liftgate latch assembly (in liftgate assembly) Liftgate module (lgm) (in center of liftgate) Liftglass ajar sig Logic Low ref Lr door ajar sig Nca Park lamp rly ctrl Passenger door latch (in right front door) Passenger door lock/ window switch Rear fuse block (below left rear seat) Right "b" pillar) Right rear door latch (in right rear door) Rr door ajar sig Security ind Tan Tbc 2 fuse 7 10a Tbc 3 fuse 4 10a Tbc 4 fuse 40 10a Tbc 5 fuse 32 10a X1 a X1 d X2 f8 X4 b11 Passlock Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Passlock Wiring Diagram for Chevrolet TrailBlazer 2009: 29 12v ref A11 B10 B11 Battery Body control module (bcm) (beneath left rear seat, on rear fuse block) Class 2 data Class 2 serial data Data link connector (on bottom left side of dash) E12 Engine control module (ecm) (4.2l: lower left front of engine) (5.3l & 6.0l: below battery) Flat wire G302 (on lower left "b" pillar) Ground Hot at all times Instrument panel cluster (ipc) J302 Logic Rear fuse block (below left rear seat) Ref Security ind Sens sig Sensor ref Sensor sig Serial data Splice pack jx205 (behind left of dash, near headlight switch connector) Tbc 1 fuse 58 10a Theft deterrent module (tdm) (in steering column) Underhood fuse block (above left front wheelwell)
BODY CONTROL MODULES
COMPUTER DATA LINES Computer Data Lines Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Computer Data Lines Wiring Diagram for Chevrolet TrailBlazer 2009: 51 4wd Auxiliary hvac control module (under lower console) B11 Battery current sensor Body control module (bcm) (beneath left rear seat, on rear fuse block) Class 2 serial data D (not used) Data link connector (dlc) (on bottom left side of dash) Digital radio receiver (right side of dash, behind glove box) Digital video disc (dvd) player Driver door module (ddm) Driver memory seat module (below left front seat) E (not used) Electronic brake control module (ebcm) (on inner left frame rail, beside transmission) Engine control module (ecm) (4.2l: lower left front of engine) (except 4.2l: below battery) Front passenger door module (fpdm) (below front passenger door switch panel) G (not used) G102 (left side of engine compt, near rear of underhood fuse block) G201 H (not used) High speed gmlan serial data + High speed gmlan serial data - High speed gmlan serial data bus + High speed gmlan serial data bus - Hot at all times Hvac control module (center of dash) Inflatable restraint sensing & diagnostic module (sdm) (below rear of center console) Instrument panel cluster (ipc) J202 J206 L (not used) Liftgate module (lgm) (in center of liftgate) Ltr fuse 13 20a Nca Power distribution system Radio Serial data bus + Serial data bus - Splice pack jx201 (at lower right front of lower console) Splice pack jx205 (behind left of dash, near headlight switch connector) Splice pack jx306 (in body harness, under right rear seat) Tan Transfer case shift control module (behind lower left side of dash) Transmission control module (tcm) (left front of engine compt) Underhood fuse block (above left front wheelwell) Vehicle communication interface module (vcim) (under right rear seat) W/ automatic a/c W/ deluxe seats W/ digital radio W/ onstar W/ rear seat entertainment
CRUISE CONTROL Cruise Control Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Cruise Control Wiring Diagram for Chevrolet TrailBlazer 2009: 58 (in engine harness, 10 cm from breakout to x107) j105 5 volt ref Accelerator pedal position (app) sensor App sensor 1 App sensor 2 B10 B4 x1 C9 x2 Cruise ind Cruise release E3 x3 Electronic brake control module (ebcm) (on inner left frame rail, beside transmission) Engine control module (lower left front of engine) Exterior lights system G108 (on lower left side of engine) Gnd Hot at all times Hot in run Hot in run or start Hvac i fuse 39 10a Ign Ign e fuse 22 10a Instrument panel cluster (ipc) Ipc class 2 serial data J101 J239 Logic Low ref Nca On sw On/off switch Pnk Power distribution system Rear fuse block (below left rear seat) Res+ Res/accel sw Serial data Serial data bus + Serial data bus - Set- Set/coast sw Splice pack jx205 (behind left of dash, near headlamp switch connector) Stop lamp fuse 12 25a Stop lamp in Stop lamp switch (on brake pedal assembly) Tac motor ctrl 1 Tac motor ctrl 2 Tan Throttle body (front of intake duct) Tp sensor 1 Tp sensor 2 Transmission control module (tcm) (left front of engine compt) Turn signal/ multi-function switch Underhood fuse block (above left front wheelwell) Veh stop fuse 34 15a Vehicle speed sensor (vss) (inside automatic transmission assembly) Vss hi Vss lo
DEFOGGERS Defoggers Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Defoggers Wiring Diagram for Chevrolet TrailBlazer 2009: 24 A1 x2 B11 Bat Computer data lines system Defogger ind Defogger switch Driver door lock/ window switch Driver outside rearview mirror G401 (on lower left "d" pillar) Gnd Hot at all times Htr Hvac control module (center of dash) J901 Lgm 2 fuse 3 30a Liftgate module (lgm) (in center of liftgate) Logic Passenger door lock/ window switch Passenger outside rearview mirror Rear fuse block (below left rear seat) Rear window defogger grid Serial data Sply volt Tan
ELECTRONIC SUSPENSION Electronic Suspension Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Electronic Suspension Wiring Diagram for Chevrolet TrailBlazer 2009: 32 4wd fuse 15a Air suspension compressor assembly (behind right rear wheelwell) Air suspension inflator switch (on right side of cargo area, on trim panel) B11 Bat pos volt Ecas fuse 30a Engine control module (ecm) (4.2l: lower left front of engine) (5.3l/6.0l: below battery) G305 (on outside of left frame rail, near fuel tank) Ground Hot at all times Hot in run Ign 3 volt Ind ctrl Instrument panel cluster J117 (in i/p harness, 8.5 cm from x100 breakout) J306 Left rear air suspension sensor (on frame rail, near left rear suspension arm) Lf sens ref Lr sens sig On/off Radio (am/fm stereo) Rear fuse block (below left rear seat) Red Right rear air suspension sensor (on frame rail, near right rear suspension arm) Rr sens ref Rr sens sig Sw sig Tan Transmissions system Underhood fuse block (above left front wheelwell) Veh spd sig Vss
ENGINE PERFORMANCE
4.2L VIN S 4.2L VIN S, Engine Performance Wiring Diagram (1 of 5) for Chevrolet TrailBlazer 2009 List of elements for 4.2L VIN S, Engine Performance Wiring Diagram (1 of 5) for Chevrolet TrailBlazer 2009: 61 (at rear of fuel tank) evaporative emission (evap) canister vent solenoid (in chassis harness, 13 cm before breakout to fuel pump & sender assembly) j359 4wd lo sig 5v ref A/c clutch rly Accel sw sig Accelerator pedal position (app) sensor Air conditioning system Air injection ctrl Anti-lock brakes system App sens 1 sig App sens 2 sig Batt pos volt Change engine oil ind Chmsl ctrl Class 2 ser data Computer data lines system Crank volt Crankshaft position (ckp) sensor (on left rear of engine block, below starter) Cruise control system Cruise ctrl set Cruise on sw sig Ecm fuse 29 10a Ecmi fuse 28 15a Eng spd sig Engine control module (ecm) (lower left front of engine) Evap sol ctrl Front knock sensor (ks) 1 (on lower left front of engine block) Fuel lvl sens sig Fuel pmp rly ctrl Fuel tank pressure (ftp) sensor (at top left rear of fuel tank) Fuel tank sens Hot at all times Hot in acc, run or start Hot in run or start Ign Ign 0 fuse 47 10a Ign e fuse 22 10a Ign volt Instrument cluster system Instrument panel cluster (ipc) J239 J320 Lo ref Logic Low engine oil pressure ind Malfunction ind lamp (mil) Mil ctrl Pnk Pwrtrain rly ctrl Rear fuse block (below left rear seat) Rear knock sensor (ks) 2 (on lower left rear of engine block) Reduce engine power ind Starter rly ctrl Starting/ charging system Tan Tcc brake sw Tcm cnstr fuse 15 10a Transmissions system Underhood fuse block (above left front wheelwell) Vehicle spd sig 4.2L VIN S, Engine Performance Wiring Diagram (2 of 5) for Chevrolet TrailBlazer 2009 List of elements for 4.2L VIN S, Engine Performance Wiring Diagram (2 of 5) for Chevrolet TrailBlazer 2009: 25 (in fuel injector harness) j111 Air pump fuse 64 60a Air sol fuse 63 15a Air sol relay Camshaft actuator solenoid assembly (on right front of cylinder head) Camshaft position (cmp) sensor (on right front of engine block) D12 E12 Fuel injectors (top of engine) Fuel pump & sender assembly (top of fuel tank) Fuel pump relay G107 (on lower left side of engine) G305 (on outside of left frame rail, near fuel tank) Hot at all times Hot in run or start J306 Nca Pcm b fuse 10 20a Pnk Power distribution system Red Red a Secondary air injection (air) pump (left front of chassis, near electronic brake control module) Secondary air injection (air) pump relay (left front of chassis) Underhood fuse block (above left front wheelwell) 4.2L VIN S, Engine Performance Wiring Diagram (3 of 5) for Chevrolet TrailBlazer 2009 List of elements for 4.2L VIN S, Engine Performance Wiring Diagram (3 of 5) for Chevrolet TrailBlazer 2009: 40 12v ref 5v ref Camshaft hi ctrl Ckp sens sig Cmp sens sig Engine control module (ecm) (lower left front of engine) Fuel inj 1 ctrl Fuel inj 2 ctrl Fuel inj 3 ctrl Fuel inj 4 ctrl Fuel inj 5 ctrl Fuel inj 6 ctrl G108 (on lower left side of engine) Gnd Ho2s hi sig Ho2s htr lo ctrl Ho2s lo sig Iat sens sig Ic 1 ctrl Ic 2 ctrl Ic 3 ctrl Ic 4 ctrl Ic 5 ctrl Ic 6 ctrl Ign volt J101 Ks 1 sig Ks 2 sig Lo oil pres sw sig Lo ref Maf sens sig Mass air flow (maf)/ intake air temperature (iat) sensor (in air intake duct) Pnk Red Starter rly ctrl Tac motor ctrl 1 Tac motor ctrl 2 Tan Tp sens 1 sig Tp sens 2 sig 4.2L VIN S, Engine Performance Wiring Diagram (4 of 5) for Chevrolet TrailBlazer 2009 List of elements for 4.2L VIN S, Engine Performance Wiring Diagram (4 of 5) for Chevrolet TrailBlazer 2009: 33 (in engine harness, 22 cm before breakout to map sensor) (in engine harness, 5 cm from breakout to x109) (top of engine) A11 C11 Eng i fuse 26 15a Etc fuse 23 15a F10 F11 G109 (on lower left side of engine) Heated oxygen sensor (ho2s) 1 (on exhaust manifold, on right side of engine) Heated oxygen sensor (ho2s) 2 (downstream of catalytic converter, on exhaust pipe) Hot at all times Ignition coil 1 Ignition coil 2 Ignition coil 3 Ignition coil 4 Ignition coil 5 Ignition coil 6 Inj a fuse 31 20a Inj b fuse 56 20a J102 J112 J128 Nca O2 snsr a fuse 55 10a O2 snsr b fuse 54 10a Pnk Pnk a Pwr/ trn relay 60 Spark plug Tan Underhood fuse block (above left front wheelwell) 4.2L VIN S, Engine Performance Wiring Diagram (5 of 5) for Chevrolet TrailBlazer 2009 List of elements for 4.2L VIN S, Engine Performance Wiring Diagram (5 of 5) for Chevrolet TrailBlazer 2009: 36 (on upper left side of engine) manifold absolute pressure (map) sensor 5v ref A/c press sens Air conditioning system Air injection ctrl Air pump rly ctrl Anti-lock brakes system Computer data lines system Delivered torq sig Ect sens sig Engine control module (ecm) (lower left front of engine) Engine coolant temperature (ect) sensor (lower right rear of engine block) Engine oil pressure (eop) switch (at lower right of engine block) Evap canister ctrl Evaporative emission (evap) canister purge solenoid (lower left side of engine) Front sig hi G107 (on lower left side of engine) Gen field sig Gen regu ctrl Gmlan data bus + Gmlan data bus - Lo ref Map sens sig Oil press sw sig Pnk Pnp sw sig Red Request torq sig Sec air inj sens Secondary air injection (air) pump solenoid (right side of engine) Starting/charging system Tan Throttle body (front of intake duct) Transmissions system Underhood fuse block (above left front f3 Wheelwell)
5.3L VIN M 5.3L VIN M, Engine Performance Wiring Diagram (1 of 5) for Chevrolet TrailBlazer 2009 List of elements for 5.3L VIN M, Engine Performance Wiring Diagram (1 of 5) for Chevrolet TrailBlazer 2009: 44 (at top rear of engine) valve lifter oil manifold (vlom) assembly (in right bank of exhaust pipe, ahead of catalytic converter) (in right bank of exhaust pipe, behind catalytic converter) 5 volt ref A/c ref pres A/c refrigerant pressure sensor (on high pressure line, near a/c compressor) Anti-lock brake system Computer data lines system Cyl sol ctrl 1 Cyl sol ctrl 2 Cyl sol ctrl 3 Cyl sol ctrl 4 Del torque sig Ect sensor sig Engine control module (ecm) (below battery) Engine coolant temperature (ect) sensor (on left front of engine block, near generator) Evap can ctrl Evaporative emission (evap) canister purge solenoid (on top of engine) Gen field duty Gen reg ctrl Heated oxygen sensor bank 2 sensor 1 Heated oxygen sensor bank 2 sensor 2 Hi spd data + Hi spd data - Ho2s low ctrl Hos2 high sig Hos2 low sig Low ref Manifold absolute pressure (map) sensor (on top of engine) Map sensor sig Nca Pnk Pnp switch sig Red Req torque sig Shutoff cylinder solenoid 1, cylinder 1 Shutoff cylinder solenoid 2, cylinder 4 Shutoff cylinder solenoid 3, cylinder 6 Shutoff cylinder solenoid 4, cylinder 7 Sig high-frt Starting/ charging system Starting/charging system Tan Transmission control system 5.3L VIN M, Engine Performance Wiring Diagram (2 of 5) for Chevrolet TrailBlazer 2009 List of elements for 5.3L VIN M, Engine Performance Wiring Diagram (2 of 5) for Chevrolet TrailBlazer 2009: 51 4wd low signal 5 volt ref A/c comp cl rel Air conditioning system Anti-lock brake system App sensor 1 sig App sensor 2 sig Batt pos volt Brake boost vac Chmsl ctrl Computer data lines system Crank voltage Crnk fuse 17 10a Cruise control system Cruise ctrl on sw Ecmi fuse 15a Engine control module (ecm) (below battery) Engine speed sig Evap can vent sol Fuel lvl sens sig Fuel pmp rel ctrl Fuel pump relay Fuel tank press G107 (on lower left side of engine) Hot at all times Hot in acc, run or start Hot in run or start Hot in start Ign 0 fuse 47 10a Ign e fuse 10a Ign volt Instrument cluster system J239 J320 Low ref Mil ctrl Pcm b fuse 10 20a Pnk Pwrtrn rly ctrl Rear fuse block (below left rear seat) Res/acc sw sig Serial data Set/coast sw sig Starter enable rly Starting/charging system Tan Tcc brake sw Tcm cnstr fuse 15 10a Transmission system Underhood fuse block (above left front wheelwell) Vss 5.3L VIN M, Engine Performance Wiring Diagram (3 of 5) for Chevrolet TrailBlazer 2009 List of elements for 5.3L VIN M, Engine Performance Wiring Diagram (3 of 5) for Chevrolet TrailBlazer 2009: 39 (in engine harness, 5 cm from breakout to x109) j112 (on power brake booster) brake booster vacuum sensor (top of fuel tank) fuel pump & sender assembly A11 A12 Accelerator pedal position (app) sensor C11 Camshaft position (cmp) sensor (at bottom front of engine) Change engine oil ind Crankshaft position (ckp) sensor (at right rear of engine, adjacent to starter) Ecm fuse 29 10a Eng i fuse 26 15a Etc fuse 23 15a Evaporative emission (evap) canister vent solenoid (at rear of fuel tank) F10 F11 Fuel tank pressure (ftp) sensor (at top left rear of fuel tank) G305 (on outside of left frame rail, near fuel tank) Hot at all times Ign Ignition coils (on top of valve cover, above respective cylinder) Inj a fuse 31 20a Inj b fuse 56 20a Instrument panel cluster (ipc) J306 J359 (in chassis harness, 13 cm before breakout to fuel pump & sender assembly) Logic Low engine oil pressure ind Malfunction indicator lamp Nca O2 snsr a fuse 55 10a O2 snsr b fuse 54 10a Pnk Pwr/trn relay 60 Red Reduce engine power ind Spark plug Tan Underhood fuse block (above left front wheelwell) 5.3L VIN M, Engine Performance Wiring Diagram (4 of 5) for Chevrolet TrailBlazer 2009 List of elements for 5.3L VIN M, Engine Performance Wiring Diagram (4 of 5) for Chevrolet TrailBlazer 2009: 20 (in ignition coil jumper harness, 5 cm from breakout to x108) (in ignition coil jumper harness, 5 cm from breakout to x108) j108 (in ignition coil jumper harness, 5 cm from breakout to x109) j109 (on lower left side of engine) g109 Engine oil pressure (eop) sensor (at left rear of engine) Heated oxygen sensor bank 1 sensor 1 (in left bank exhaust pipe, ahead of catalytic converter) Heated oxygen sensor bank 1 sensor 2 (in left bank of exhaust pipe, behind catalytic converter) Ignition coils (on top of valve cover,above respective cylinder) J118 J119 (in ignition coil jumper harness, 5 cm from breakout to x109) J128 J129 Left knock sensor (ks) 1 (lower left side of engine) Nca Pnk Red Right knock sensor (ks) 2 (right side of engine block) Spark plug Tan Throttle body (front of intake duct) 5.3L VIN M, Engine Performance Wiring Diagram (5 of 5) for Chevrolet TrailBlazer 2009 List of elements for 5.3L VIN M, Engine Performance Wiring Diagram (5 of 5) for Chevrolet TrailBlazer 2009: 49 (22 cm before breakout to map sensor) (on lower left side of engine) g108 12 volt ref 5 volt ref 5 volt ref 2 Ckp sensor sig Cmp sensor sig Engine control module (ecm) (below battery) Fuel inj 1 ctrl Fuel inj 2 ctrl Fuel inj 3 ctrl Fuel inj 4 ctrl Fuel inj 5 ctrl Fuel inj 6 ctrl Fuel inj 7 ctrl Fuel inj 8 ctrl Fuel injectors (fuel injectors 1, 3, 5 & 7: upper left side of engine) (fuel injectors 2, 4, 6 & 8: upper right side of engine) Ground Ho2s high sig Ho2s low sig Hos2 htr lo ctrl Iat sensor sig Ic 1 ctrl Ic 2 ctrl Ic 3 ctrl Ic 4 ctrl Ic 5 ctrl Ic 6 ctrl Ic 7 ctrl Ic 8 ctrl Ign volt J100 (10 cm from break- out to ecm) J101 J102 Ks 1 sig Ks 2 sig Low ref Maf sensor sig Mass air flow (maf)/intake air temperature (iat) sensor (in air intake duct) Oil press sens Pnk Pnk a Red Tac mtr ctrl 1 Tac mtr ctrl 2 Tan Tp sensor 1 sig Tp sensor 2 sig Underhood fuse block (above left front wheelwell)
6.0L VIN H 6.0L VIN H, Engine Performance Wiring Diagram (1 of 5) for Chevrolet TrailBlazer 2009 List of elements for 6.0L VIN H, Engine Performance Wiring Diagram (1 of 5) for Chevrolet TrailBlazer 2009: 44 (at top rear of engine) valve lifter oil manifold (vlom) assembly (in right bank of exhaust pipe, ahead of catalytic converter) (in right bank of exhaust pipe, behind catalytic converter) 5 volt ref A/c ref pres A/c refrigerant pressure sensor (on high pressure line, near a/c compressor) Anti-lock brake system Computer data lines system Cyl sol ctrl 1 Cyl sol ctrl 2 Cyl sol ctrl 3 Cyl sol ctrl 4 Del torque sig Ect sensor sig Engine control module (ecm) (below battery) Engine coolant temperature (ect) sensor (on left front of engine block, near generator) Evap can ctrl Evaporative emission (evap) canister purge solenoid (on top of engine) Gen field duty Gen reg ctrl Heated oxygen sensor bank 2 sensor 1 Heated oxygen sensor bank 2 sensor 2 Hi spd data + Hi spd data - Ho2s low ctrl Hos2 high sig Hos2 low sig Low ref Manifold absolute pressure (map) sensor (on top of engine) Map sensor sig Nca Pnk Pnp switch sig Red Req torque sig Shutoff cylinder solenoid 1, cylinder 1 Shutoff cylinder solenoid 2, cylinder 4 Shutoff cylinder solenoid 3, cylinder 6 Shutoff cylinder solenoid 4, cylinder 7 Sig high-frt Starting/ charging system Starting/charging system Tan Transmission control system 6.0L VIN H, Engine Performance Wiring Diagram (2 of 5) for Chevrolet TrailBlazer 2009 List of elements for 6.0L VIN H, Engine Performance Wiring Diagram (2 of 5) for Chevrolet TrailBlazer 2009: 51 4wd low signal 5 volt ref A/c comp cl rel Air conditioning system Anti-lock brake system App sensor 1 sig App sensor 2 sig Batt pos volt Brake boost vac Chmsl ctrl Computer data lines system Crank voltage Crnk fuse 17 10a Cruise control system Cruise ctrl on sw Ecmi fuse 15a Engine control module (ecm) (below battery) Engine speed sig Evap can vent sol Fuel lvl sens sig Fuel pmp rel ctrl Fuel pump relay Fuel tank press G107 (on lower left side of engine) Hot at all times Hot in acc, run or start Hot in run or start Hot in start Ign 0 fuse 47 10a Ign e fuse 10a Ign volt Instrument cluster system J239 J320 Low ref Mil ctrl Pcm b fuse 10 20a Pnk Pwrtrn rly ctrl Rear fuse block (below left rear seat) Res/acc sw sig Serial data Set/coast sw sig Starter enable rly Starting/charging system Tan Tcc brake sw Tcm cnstr fuse 15 10a Transmission system Underhood fuse block (above left front wheelwell) Vss 6.0L VIN H, Engine Performance Wiring Diagram (3 of 5) for Chevrolet TrailBlazer 2009 List of elements for 6.0L VIN H, Engine Performance Wiring Diagram (3 of 5) for Chevrolet TrailBlazer 2009: 39 (in engine harness, 5 cm from breakout to x109) j112 (on power brake booster) brake booster vacuum sensor (top of fuel tank) fuel pump & sender assembly A11 A12 Accelerator pedal position (app) sensor C11 Camshaft position (cmp) sensor (at bottom front of engine) Change engine oil ind Crankshaft position (ckp) sensor (at right rear of engine, adjacent to starter) Ecm fuse 29 10a Eng i fuse 26 15a Etc fuse 23 15a Evaporative emission (evap) canister vent solenoid (at rear of fuel tank) F10 F11 Fuel tank pressure (ftp) sensor (at top left rear of fuel tank) G305 (on outside of left frame rail, near fuel tank) Hot at all times Ign Ignition coils (on top of valve cover, above respective cylinder) Inj a fuse 31 20a Inj b fuse 56 20a Instrument panel cluster (ipc) J306 J359 (in chassis harness, 13 cm before breakout to fuel pump & sender assembly) Logic Low engine oil pressure ind Malfunction indicator lamp Nca O2 snsr a fuse 55 10a O2 snsr b fuse 54 10a Pnk Pwr/trn relay 60 Red Reduce engine power ind Spark plug Tan Underhood fuse block (above left front wheelwell) 6.0L VIN H, Engine Performance Wiring Diagram (4 of 5) for Chevrolet TrailBlazer 2009 List of elements for 6.0L VIN H, Engine Performance Wiring Diagram (4 of 5) for Chevrolet TrailBlazer 2009: 20 (in ignition coil jumper harness, 5 cm from breakout to x108) (in ignition coil jumper harness, 5 cm from breakout to x108) j108 (in ignition coil jumper harness, 5 cm from breakout to x109) j109 (on lower left side of engine) g109 Engine oil pressure (eop) sensor (at left rear of engine) Heated oxygen sensor bank 1 sensor 1 (in left bank exhaust pipe, ahead of catalytic converter) Heated oxygen sensor bank 1 sensor 2 (in left bank of exhaust pipe, behind catalytic converter) Ignition coils (on top of valve cover,above respective cylinder) J118 J119 (in ignition coil jumper harness, 5 cm from breakout to x109) J128 J129 Left knock sensor (ks) 1 (lower left side of engine) Nca Pnk Red Right knock sensor (ks) 2 (right side of engine block) Spark plug Tan Throttle body (front of intake duct) 6.0L VIN H, Engine Performance Wiring Diagram (5 of 5) for Chevrolet TrailBlazer 2009 List of elements for 6.0L VIN H, Engine Performance Wiring Diagram (5 of 5) for Chevrolet TrailBlazer 2009: 49 (22 cm before breakout to map sensor) (on lower left side of engine) g108 12 volt ref 5 volt ref 5 volt ref 2 Ckp sensor sig Cmp sensor sig Engine control module (ecm) (below battery) Fuel inj 1 ctrl Fuel inj 2 ctrl Fuel inj 3 ctrl Fuel inj 4 ctrl Fuel inj 5 ctrl Fuel inj 6 ctrl Fuel inj 7 ctrl Fuel inj 8 ctrl Fuel injectors (fuel injectors 1, 3, 5 & 7: upper left side of engine) (fuel injectors 2, 4, 6 & 8: upper right side of engine) Ground Ho2s high sig Ho2s low sig Hos2 htr lo ctrl Iat sensor sig Ic 1 ctrl Ic 2 ctrl Ic 3 ctrl Ic 4 ctrl Ic 5 ctrl Ic 6 ctrl Ic 7 ctrl Ic 8 ctrl Ign volt J100 (10 cm from break- out to ecm) J101 J102 Ks 1 sig Ks 2 sig Low ref Maf sensor sig Mass air flow (maf)/intake air temperature (iat) sensor (in air intake duct) Oil press sens Pnk Pnk a Red Tac mtr ctrl 1 Tac mtr ctrl 2 Tan Tp sensor 1 sig Tp sensor 2 sig Underhood fuse block (above left front wheelwell)
EXTERIOR LIGHTS Backup Lamps Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Backup Lamps Wiring Diagram for Chevrolet TrailBlazer 2009: 44 (in chassis harness, 9.5 cm from breakout to right backup lamp) j408 (not used) A9 x1 Automatic transmission Automatic transmission internal mode switch (ims) B/u lmp volt B1 class 2 serial data x1 B12 B13 B13 x4 Backup lamp Battery Bck/up fuse 27 15a Body control module (bcm) (beneath left rear seat, on rear fuse block) Chevrolet Computer data lines system Flat wire G108 (on lower left side of engine) G305 (on outside of left frame rail, near fuel tank) G401 (on lower left "d" pillar) Gmc Hot at all times Hot in run or start Inside rearview mirror (isrvm) (if equipped) J101 J306 J401 Left backup lamp Left tail lamp circuit board Logic Park/neutral position (pnp) switch (on lower left side of transmission) Pnk Rear fuse block (below left rear seat) Red Right Sply volt Tan Tbc 5 fuse 32 10a Tr sw p tr sw c tr sw b tr sw a bus (-) bus (+) Trailer connector (under center of rear bumper) Transmission control module (tcm) (left front of engine compt) Trlr bck/up fuse 4 10a Underhood fuse block (above left front wheelwell) X3 b4 Exterior Lamps Wiring Diagram (1 of 2) for Chevrolet TrailBlazer 2009 List of elements for Exterior Lamps Wiring Diagram (1 of 2) for Chevrolet TrailBlazer 2009: 70 (at lower right front of lower console) splice pack jx201 (left front of engine compt) transmission control module (tcm) (left front of engine compt, on left side of radiator support) g103 (on left side of rear frame crossmember) g403 (on lower left side of engine) g107 A10 A14 Auto Backup lamps circuit Body control module (bcm) (beneath left rear seat, on rear fuse block) Chevrolet Chmsl ctrl D10 Elec brk fuse 19 30a Engine control module (ecm) (4.2l: lower left front of engine) (5.3l/6.0l: below battery) F park fuse 37 10a Flat wire G102 (left side of engine compt, near rear of underhood fuse block) G103 (left front of engine compt, on left side of radiator support) G107 (on lower left side of engine) G201 Gmc Hazard switch Head Headlamp switch Hot at all times Hot in run or start Ign e fuse 22 10a Instrument panel cluster (ipc) J103 J105 (in engine harness, 10 cm from breakout to x107) J107 J211 J227 J239 Left Left cornering lamp Left front side marker lamp Left park/turn signal lamp Left turn ind Logic Park Park lp relay 30 Pnk Prk lmp on Prk lmp rly Rear fuse block (below left rear seat) Red Red e Right Right cornering lamp Right front side marker lamp Right park/turn signal lamp Right turn ind Splice pack jx201 (at lower right front of lower console) Stop lmp Tan To tr park fuse 42 (diagram 2 0f 2) Trailer connector (truck trailer hd wiring harness) (under center of rear bumper) Trlr fuse 32 30a Trlr lt trn fuse 51 10a Trlr rt trn fuse 50 10a Turn signal/ multi- function switch Under- hood fuse block (above left front wheelwell) Underhood fuse block (above left front wheelwell) W/ wiring harness W/ wiring provision W/o wiring provision X12 X3 e5 Exterior Lamps Wiring Diagram (2 of 2) for Chevrolet TrailBlazer 2009 List of elements for Exterior Lamps Wiring Diagram (2 of 2) for Chevrolet TrailBlazer 2009: 55 (except gmc) (gmc) (not used) A11 Battery Center high mount stop lamp (chmsl) Driver door lock/ window switch Driver outside rearview mirror From a f park fuse 37 (diagram 1 0f 2) G201 G401 (on lower left "d" pillar) G402 (on lower right "d" pillar) Gmc Ground Hazard sw Hazrd fuse 52 25a Hot at all times J401 J402 J901 Left license lamp Left tail lamp circuit board Lr lamp volt Lr park fuse 14 10a Lt trn sig voltage Lt turn fuse 38 10a Lt turn sig Mir rt out trn sig Mir rt trn sig Mirror lt turn sig Nca Park Passenger door lock/ window switch Passenger outside rearview mirror Rear fuse block (below left rear seat) Right license lamp Right tail lamp circuit board Rr lamp volt Rr park fuse 17 10a Rt trn sig volt Rt turn fuse 43 10a Rt turn sig Splice pack jx201 (at lower right front of lower console) Stop Stop lamp fuse 12 25a Stop lamp sw Stop lamp switch (on brake pedal assembly) Tan Tr park fuse 42 10a Turn Turn signal/hazard flasher module (behind lower left side of dash) Underhood fuse block (above left front wheelwell) Veh chmsl fuse 16 10a Veh stop fuse 34 15a W/ mirror turn signal indicator
GROUND DISTRIBUTION Ground Distribution Wiring Diagram (1 of 4) for Chevrolet TrailBlazer 2009 List of elements for Ground Distribution Wiring Diagram (1 of 4) for Chevrolet TrailBlazer 2009: 76 (chevrolet) (gmc) (gmc) right cornering lamp A/c low pressure switch A12 Bare Battery C10 D10 Data link connector Digital radio receiver G101 (left side of engine compt, near front of underhood fuse block) G102 (left side of engine compt, near rear of underhood fuse block) G103 (left front of engine compt, on left side of radiator support) G104 (on underside of hood, near underhood compt lamp) G105 (in engine compt, on firewall, near i/p harness pass-through) G106 (on engine side of left front wheelwell) G109 (4.2l) (on lower left side of engine) G109 (5.3l/6.0l) (on lower left side of engine) G110 (on lower left side of engine) Hazard lamp switch Headlamp dimmer switch Headlamp washer fluid pump Horn assembly Hvac control module If equipped Ignition coil 1 Ignition coil 2 Ignition coil 3 Ignition coil 4 Ignition coil 5 Ignition coil 6 Ignition coil 7 Ignition coil 8 Ignition key alarm switch Inflatable restraint front passenger presence system (pps) module Inflatable restraint sensing & diagnostic module (sdm) Inflatable restraint vehicle rollover sensor Instrument panel cluster (ipc) J103 (in forward lamp harness, 8 cm from rear washer pump motor breakout) J113 (in forward lamp harness, 19.5 cm from windshield washer fluid pump breakout) J128 (in ignition coil jumper harness, 5 cm from breakout to x108) J129 (in ignition coil jumper harness, 5 cm from breakout to x109) J202 (i/p harness, 16.5 cm from steering column connector breakout) J227 Nca Radio Rear window washer fluid pump Right front fog lamp Right front side marker lamp Right high beam headlamp Right low beam headlamp Right park/turn signal lamp Shield drain wire 1 Shield drain wire 2 Shield drain wire 3 Steering wheel speed/ position sensor Tan Theft deterrent module (tdm) Traction control switch Transfer case shift control module Turn signal/ multi-function switch Underhood fuse block (above left front wheelwell) W/ 2 speed push button control W/ all wheel drive & 2 speed push button control W/ driver information center display W/ front fog lamps W/ high pressure headlamp washer W/ immobilization security system equipment W/ onstar W/ premium audio speaker system W/ wiring provisions Windshield washer fluid level switch Windshield washer fluid pump Windshield wiper motor Windshield wiper/ washer switch Ground Distribution Wiring Diagram (2 of 4) for Chevrolet TrailBlazer 2009 List of elements for Ground Distribution Wiring Diagram (2 of 4) for Chevrolet TrailBlazer 2009: 50 (chevrolet) (gmc) (gmc) left cornering lamp (not used) (w/ onstar) shield drain wire 4 (w/ onstar) vehicle communication interface module (vcim) 4.2l A x1 A/c compressor clutch assembly A10 Automatic transmission B (4.2l) Brake fluid level switch C (5.3l/6.0l) Eap relay 49 (w/ power adjustable pedals) Electronic brake control module (ebcm) Engine control module (ecm) Except 4.2l F/pump relay 41 Front drive axle actuator (w/ 2 speed push button control) G107 (on lower left side of engine) G108 (on lower left side of engine) G303 (on lower right "b" pillar) G304 (on outside of left frame rail, near electronic brake control module) Generator battery control module Hdm relay 46 J101 (4.2l: in engine harness, 15 cm from breakout to pcm) (5.3l/6.0l: in engine harness, 4 cm from breakout to x107) J107 (in forward lamp harness, 9 cm from breakout to left front fog lamp) J205 (in chassis harness, 8 cm from breakout to electronic brake control module) J303 (in body harness, 5 cm from main harness breakout for x800) J317 (w/ heat: in passenger seat main power harness, 14.5 cm back from lumbar adjuster switch connector) (w/o heat: in passenger seat main power harness, 5 cm from breakout to lumbar adjuster switch connector) Left front fog lamp Left front marker lamp Left high beam headlamp Left low beam headlamp Left park/turn signal lamp Mass air flow (maf) sensor/ intake air temperature (iat) sensor Nca Passenger door lock/ window switch Passenger seat adjuster switch Passenger seat lumbar adjuster switch Right rear door latch Right rear window switch Secondary air injection (air) pump solenoid (w/ electric air injection reactor) Strtr relay Transmission control module (tcm) Underhood fuse block (above left front wheelwell) W/ deluxe seats W/ front fog lamps W/ wiring provisions Ground Distribution Wiring Diagram (3 of 4) for Chevrolet TrailBlazer 2009 List of elements for Ground Distribution Wiring Diagram (3 of 4) for Chevrolet TrailBlazer 2009: 52 (if equipped) sunroof motor (not used) (w/ air auto level control) air suspension compressor (w/ automatic temperature controls) auxiliary blower motor (w/ electric air injection reactor) secondary air injection (air) pump (w/ immobilization security system equipment) theft deterrent alarm (w/ manual temperature controls) recirculation actuator Automatic transmission shift lock control solenoid Auxiliary hvac control module Auxiliary mode actuator Blower motor control module Blower motor resistor assembly Center console accessory power outlet Cigar lighter Data link connector Electronic adjustable pedal (eap) relay Front accessory power outlet Fuel pump & sender assembly G201 (ground splice pack near, right front of lower console) G305 (on outside of left frame rail, near fuel tank) G306 (on body panel, rear of left rear door) Gmc Headlamp switch Hvac control module If equipped Ignition lock cylinder control actuator Inflatable restraint steering wheel module coil Instrument panel cluster (ipc) J201 (in i/p harness, 4 cm from breakout to inflatable restraint i/p module) J211 (in i/p harness, 16 cm from sp201 breakout) J226 (in steering column harness) J274 (in steering wheel) J306 (in chassis harness, 13 cm back from breakout to fuel pump & sender assembly) J307 Left backup lamp Lower left steering wheel control switch Lower right steering wheel control switch Nca Rear window wiper/ washer switch Right backup lamp Splice pack jx201 Temperature controls Transfer case shift control switch Turn signal/ hazard flasher module Upper left steering wheel control switch Upper right steering wheel control switch W/ 2 speed push button control W/ automatic W/ automatic temperature controls W/ manual W/ manual temperature controls W/ steering wheel controls Ground Distribution Wiring Diagram (4 of 4) for Chevrolet TrailBlazer 2009 List of elements for Ground Distribution Wiring Diagram (4 of 4) for Chevrolet TrailBlazer 2009: 59 (if equipped) garage door opener (if equipped) left vanity mirror lamp (if equipped) right vanity mirror lamp (if equipped) sunroof switch (not used) (truck trailer hd wiring harness) trailer connector (w/ compass) inside rearview mirror (isrvm) (w/ onstar) shield drain 6 (w/ rear seat entertainment) package) shield drain 5 2nd row courtesy reading/ lamps 87a A11 Audio amplifier B11 Bare Body control module (bcm) Breakout for x700) Cargo lamp Center high mounted stoplamp (chmsl) Digital video disc (dvd) player Driver door lock/ window switch Driver memory seat module Driver seat adjuster switch Driver seat lumbar adjuster switch Flat wire Front overhead console courtesy/ reading lamps G302 (on lower G401 (on lower left "d" pillar) G402 (on lower right "d" pillar) G403 (on left side of rear frame crossmember) If equipped Inside air temperature sensor assembly J311 (in driver's seat main power harness, 4.5 cm from lumbar switch breakout) J312 (in main headliner harness, 80 cm from x308 breakout) J322 (in headliner harness, 16 cm from isrvm breakout, toward right sun shade mirror lamp) J332 (in overhead console harness) J401 (in body harness, 7.5 cm from g401 breakout) J402 (in body harness, 7.5 cm from g402 breakout) J901 (in liftgate harness, 22 cm from liftgate module breakout) Left "b" pillar) Left license lamp Left rear door latch Left rear window switch Left tail lamp circuit board Liftgate module (lgm) Lock relay 18 Nca Rear window defogger grid Rear window wiper motor Right license lamp Right tail lamp circuit board Unlock relay 24 W/ automatic temperature controls W/ custom interior console roof W/ memory W/ premium speaker system W/ rear seat entertainment package W/o custom interior console roof X4 rear fuse block (below left rear seat)
HEADLIGHTS Headlights Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Headlights Wiring Diagram for Chevrolet TrailBlazer 2009: 87 4.2l A x2 A12 A4 x4 Amb lt sens lo ref Amb lt sens sig Ambient light sensor (on top center of dash) Ambient light/ sunload sensor (on top center of dash, near base of windshield) Auto Automatic a/c B10 B14 B3 x2 Body control module (bcm) (beneath left rear seat, on rear fuse block) C12 x2 Drl defeat Drl defeat ind on Drl defeat sw sig Drl override ind E11 E14 E6 x1 F10 Flash to pass Flash to pass sig Flat wire Fog lamp fuse 11 15a Fog lamp relay 39 Fog lp rly ctrl Fr fog lp ind Fr fog lp sw sig Front fog lamp switch G102 (left side of engine compt, near rear of underhood fuse block) G103 (left front of engine compt, on left side of radiator support) G107 (on lower left side of engine) G108 (on lower left side of engine) G201 Hdlmp on ind ctrl Hdlmp on sig Hdlp washer switch Hdm fuse 57 15a Hdm relay 46 Head Headlamp on ind Headlamp switch Hi beam Hi beam rly ctrl Hi headlamp relay 43 Hot at all times Ign coils fuse 14 (5.3l & 6.0l) 10a Interior lights system J101 J103 J107 J113 J227 Led dimming sig Left front fog lamp Left high beam headlamp Left low beam headlamp Lo beam Lo beam rly ctrl Logic Lt hi headlamp fuse 5 10a Lt lo headlamp fuse 6 10a Manual a/c Off Park Park brake switch (on parking brake assembly) Park brk sw sig Park lp sw on sig Pnk Rear fuse block (below left rear seat) Right front fog lamp Right high beam headlamp Right low beam headlamp Rt hi headlamp fuse 2 10a Rt lo headlamp fuse 3 10a Splice pack jx201 (at lower right front of lower console) Tan Turn signal/ multi-function switch Underhood fuse block (above left front wheel well) W/o wiring provision Wipe sw sig Wiper/ washer system X2 c2 X4 f2
HORN Horn Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Horn Wiring Diagram for Chevrolet TrailBlazer 2009: 15 Body control module (bcm) (beneath left rear seat, on rear fuse block) E12 F4 x4 G103 (left front of engine compartment, on left side of radiator support) High note horn Horn assembly (lower left front of radiator support) Horn fuse 21 15a Horn relay Horn relay control Horn switch Hot at all times J113 Low note horn Turn signal/ multi-function switch Underhood fuse block (above left front wheelwell)
INSTRUMENT CLUSTER Instrument Cluster Wiring Diagram (2 of 1) for Chevrolet TrailBlazer 2009 List of elements for Instrument Cluster Wiring Diagram (2 of 1) for Chevrolet TrailBlazer 2009: 61 (above left front wheelwell) underhood fuse block (at left rear of engine) engine oil pressure (eop) sensor (in center of liftgate) liftgate module (lgm) (in chassis harness, 13 cm before breakout to fuel pump & sender assembly) j359 (in liftgate assembly) (in liftgate) liftgate ajar switch (on brake master cylinder fluid reservoir) brake fluid level switch (on inner left frame rail, beside transmission) electronic brake control module (ebcm) (on lower left "b" pillar) g302 (on lower right "b" pillar) g303 4.2l 5 volt ref 5.3l/ 6.0l A12 Ajar sw lo ref Ajar sw sig x3 B10 Body control module (bcm) (beneath left rear seat, on rear fuse block) Class 2 data Class 2 serial data Computer data lines system Driver door latch assembly (in left front door) Driver door lock/ window switch Ect sens sig Eng speed Engine control module (ecm) (4.2l: lower left front of engine) (5.3l/6.0l: below battery) Engine controls system Engine coolant temperature (ect) sensor (4.2l: lower right rear engine block) (5.3l/6.0l: on left front of engine block, near generator) Engine oil pressure (eop) switch (at lower right of engine block) F10 Flat wire Fuel level Fuel pump & sender assembly (top of fuel tank) G107 (on lower left side of engine) Ground distribution system J302 J303 Left rear door latch assembly (in left rear door) Liftgate latch assembly Lo ref ajar sw Low oil press sw sig Low ref Nca Oil pres sig Oil press sw Park brake switch (on parking brake assembly) Passenger door latch assembly (in right front door) Passenger door lock/ window switch Prk brk sw sig rr dr ajar sw sig Rear fuse block (below left rear seat) Rear fuse block (below left rear seat) b1 Right rear door latch assembly (in right rear door) Rr dr ajar sw sig Sensor signal Ser data Serial data Sig ajar sw Sw sig drv dr ajar Sw sig pass dr ajar Tan Vss
INTERIOR LIGHTS Courtesy Lamps Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Courtesy Lamps Wiring Diagram for Chevrolet TrailBlazer 2009: 65 (in headliner harness, 17 cm from left sun shade mirror lamp breakout, toward x305) j331 (in headliner harness, 26 cm from left front dome/reading lamp) j390 (not used) A12 x2 B10 B17 B18 Batt + Body control module (bcm) (beneath left rear seat, on rear fuse block) Cargo lamp Console roof) Courtesy Courtesy lamp switch D x1 Data Door ajar sw sig Driver door latch assembly (in left front door) x1 Driver door module (ddm) F10 F11 F12 Flat wire Front overhead console courtesy/ reading lamps Front passenger door module (fpdm) (below front passenger door switch panel) G201 G302 (on lower left "b" pillar) G303 (on lower right "b" pillar) Headlamp switch Hot at all times If equipped Interior lamp defeat switch J tan J302 J303 J312 J322 Lamp on Lamp sply Left rear door latch assembly (in left rear door) Left vanity mirror lamp Liftgate ajar sw Liftgate ajar switch (in liftgate) Liftgate latch assembly (in liftgate assembly) Liftgate module (lgm) (in center of liftgate) Liftglass ajar sw Lmp defeat Low ref Lr dr sig Nca Passenger door latch assembly (in right front door) x1 a Reading Rear fuse block (below left rear seat) Rear overhead console courtesy/ reading lamps Right rear door latch assembly (in right rear door) Right vanity mirror lamp Rr dr sig Serial data Splice pack jx201 (at lower right front of lower console) Splice pack jx205 (behind left of dash, near headlight switch connector) Splice pack jx306 (in body harness, under right rear seat) Tan Tbc 3 fuse 4 10a Tbc 4 fuse 40 10a X1 a12 X4 b3 Instrument Illumination Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Instrument Illumination Wiring Diagram for Chevrolet TrailBlazer 2009: 91 (2 bulbs) (8 bulbs) (automatic a/c) (manual a/c) a5 (not used) 2 hi 4 hi 4 lo 5 volt ref A10 Auto 4wd ind Auxiliary hvac control module (under lower console) B x1 B1 instrument panel lamps dimming ctrl B10 B13 B14 B2 instrument panel lamps dimming ctrl B9 x1 Batt + Body control module (bcm) (beneath left rear seat, on rear fuse block) Class 2 serial data Data Dimm ctrl Driver door module (ddm) Driver memory seat adjuster switch (w/ memory) Drl defeat Drl override ind E11 E14 Flat wire Fr fog lp rly cntrl Front fog lamp ind Fuse holder G201 G302 (on lower left "b" pillar) Garage door opener (if equipped) Head lamp Headlamp on ind Headlamp switch Hot at all times Hvac control module (center of dash) Illum Inflatable restraint steering wheel module coil (in steering wheel column) Instrument panel cluster (ipc) J211 J226 J230 (in i/p harness, 5 cm from jx201 breakout) J272 J330 (in overhead console harness) J332 Led dimming sig Low ref Lower left steering wheel control switch Lower right steering wheel control switch Nca Off On ind Park Pk lp sw Pnk Rear fuse block (below left rear seat) Rear window wiper/ washer switch Splice pack jx201 (at lower right front of lower console) Splice pack jx205 (behind left of dash, near headlight switch connector) Splice pack jx306 (in body harness, under right rear seat) Sply volt Sunroof switch (if equipped) Tan Tan/ Tbc 2 fuse 7 10a Tbc 5 fuse 32 10a Transfer case shift control module (behind lower left side of dash) Transfer case shift control switch Underhood fuse block (above left front wheelwell) Upper left steering wheel control switch Upper right steering wheel control switch W/ active 2 speed push button control transfer case W/ front fog lamps W/ leather wrapped steering wheel W/ universal garage door opener & sunroof W/o wiring provisions X1 b2 X1 c X1 k X1 l X2 a2 X2 c X2 e X3 e3 X4 b14
MEMORY SYSTEMS Adjustable Pedal Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Adjustable Pedal Wiring Diagram for Chevrolet TrailBlazer 2009: 48 (in driver seat main power harness, 5 cm from breakout memory seat module connector c1) (in electronic adjustable pedal assembly harness) j210 5v ref Adj pedal fwd sig Adj pedal rwd sig Adj pedal sensor sig Aft B10 Bat (+) Bck/up fuse 27 15a Class 2 serial data Computer data lines system Driver door lock/window switch Driver lumbar horizontal position sensor (in driver seat back) Driver memory seat adjuster switch Driver memory seat module (below left front seat) Eap fuse 59 15a Eap relay Electronic adjustable pedal (eap) assembly (on pedals assembly) Electronic adjustable pedal (eap) relay (left side of dash, on pedal assembly) Electronic adjustable pedal (eap) switch Exit Fore Fuse holder G108 (on lower left side of engine) G201 Hot at all times Hot in run or start Illum ctrl J101 J209 (in electronic adjustable pedal assembly harness) J211 J304 J305 (in driver seat main power harness, 7 cm from breakout memory seat module connector c1) Low ref Lum horiz pos sen sig Mem 1 Mem 2 Memory 1 sw Memory 2 sw Park/ neutral Park/neutral position (pnp) switch (on lower left side of transmission) Pnk Red Splice pack jx201 (at lower right front of lower console) Tan Underhood fuse block (above left front wheelwell) X1 e6 Driver"s Memory Seat Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Driver"s Memory Seat Wiring Diagram for Chevrolet TrailBlazer 2009: 99 (driver's seat motor harness, 17 cm from seat module connector c2) j313 (driver's seat motor harness, 24 cm from seat module connector c2) (in driver seat main power harness, 5 cm from breakout memory seat module connector c1) j304 (in driver seat main power harness, 7 cm from breakout memory seat module connector c1) 5v ref A pnk A10 A11 A12 Adj pedal fwd sig Adj pedal rwd sig Adj pedal sensor sig Adjustable pedal circuit B10 B11 B12 Bat (+) Battery (+) voltage Class 2 data Class 2 serial data Computer data lines system D red D tan Driver door lock/window switch Driver lumbar horizontal motor (in driver seat back) Driver lumbar horizontal position sensor (in driver seat back) Driver memory seat adjuster switch Driver memory seat module (below left front seat) Driver seat adjuster switch Driver seat front vertical motor (under driver seat) Driver seat front vertical motor position sensor Driver seat horizontal motor (under driver seat) Driver seat horizontal position sensor (under driver seat) Driver seat lumbar adjuster switch Driver seat rear vertical motor (under driver seat) Driver seat rear vertical motor position sensor Driver seat recline motor (under driver seat) Driver seat recline position sensor (under driver seat) Drv htd seat them sig Drvr htd seat low ref Exit Frt dwn Frt up Frt vert dn sw sig Frt vert mtr dn ctrl Frt vert mtr pos sen Frt vert mtr up ctrl Frt vert up sw sig Fwd G302 (on lower left "b" pillar) Gnd Heated seat pwr Horiz fwd sw sig Horiz mtr fwd ctrl Horiz mtr pos sen sig Horiz mtr rwd ctrl Horiz rwd sw sig Hot at all times Illum ctrl J305 J311 J314 Lgm/dsm fuse 19 10a Low ref Lum fwd sw sig Lum horiz pos sen sig Lum mtr fwd ctrl Lum mtr rwd ctrl Lum rwd sw sig Mem 1 Mem 2 Memory 1 sw Memory 2 sw Pass htd seat back Pass htd seat ctrl Pass htd seat cushion Pass htd seat low ref Pass htd seat them sig Pnk Rear fuse block (below left rear seat) Rear vert dn sw sig Rear vert up sw sig Rec fwd Recline fwd sw sig Recline mtr fwd ctrl Recline mtr pos sen sig Recline mtr rwd ctrl Recline rwd sw sig Red Rr dwn Rr up Rr vert mtr dn ctrl Rr vert mtr up ctrl Rwd Seats circuit breaker 8 30a Seats system Tan Vert mtr pos sen sig X2 c1 Memory Mirrors Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Memory Mirrors Wiring Diagram for Chevrolet TrailBlazer 2009: 52 (on lower left "b" pillar) g302 5v ref Bat (+) C10 Class 2 serial data Computer data lines system Ddm fuse 10 10a Defogger system Down Down sig Driver Driver door lock/window switch Driver memory seat adjuster switch Driver outside rearview mirror Driver sig Exit Fold Ground Horiz pos sig Horizontal Hot at all times Ign voltage Illum ctrl J302 Left Left sig Low ref Lt doors circuit breaker 2 25a Mem Memory 1 sw Memory 2 sw Mir common Mir down ctrl Mir extend Mir retract Mir right ctrl Nca Outside rearview mirror switch Pass Passenger door lock/window switch Passenger outside rearview mirror Passenger sig Pnk Rear fuse block (below left rear seat) Red Right Right sig Tan Up sig Vert pos sig Vertical W/ folding mirrors
NAVIGATION Navigation Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Navigation Wiring Diagram for Chevrolet TrailBlazer 2009: 15 A12 Cellular & navigation antenna Coax Computer data lines system G102 (left side of engine compt, near rear of underhood fuse block) Ground Hot at all times Instrument cluster system J202 Navi antenna Radio Radio fuse 41 15a Rear fuse block (below left rear seat) Serial data Veh speed sig
POWER DISTRIBUTION Power Distribution Wiring Diagram (1 of 5) for Chevrolet TrailBlazer 2009 List of elements for Power Distribution Wiring Diagram (1 of 5) for Chevrolet TrailBlazer 2009: 65 (above left front wheelwell) underhood fuse block (in i/p harness, 18 cm from automatic transmission shift lever connector breakout) j320 4wd fuse 48 15a A11 A18 Abs fuse 33 60a Acc Air suspension compressor (w/ auto air level control) Atc fuse 8 30a Automatic transmission shift lock control actuator Auxiliary hvac control module (manual a/c) Auxiliary mode actuator B11 Battery Body control module (bcm) Crank fuse 17 10a D9 x1 Defrost actuator Elec brk fuse 19 30a Electronic brake control module (ebcm) Engine control module (ecm) F11 Flat- wire Front drive axle actuator (w/ 2 speed push button control) Generator Hvac control module Hvac control module (manual a/c) Hvac fuse 44 30a Hvac i fuse 39 10a I/p batt fuse 48 125a Ign 0 fuse 47 10a Ign a fuse 34 40a Ign b fuse 36 40a Ignition switch Left air temperature actuator Lock Mode actuator Nca Pnk Rear fuse block (below left rear seat) Recirculation actuator Red Right air temperature actuator Run Start Starter Starter relay 47 Steering wheel speed/ position sensor Tbc ig fuse 50 3a Theft deterrent module (tdm) (if equipped) To blwr fuse 35 (diagram 2 of 5) To brake fuse 51 (diagram 2 of 5) To rear fuse block (diagram 2 of 5) To rear fuse block lgm/dsm fuse 19 (diagram 4 of 5) To underhood fuse block (diagram 3 of 5) Trailer connector (hd trunk trailer) Transfer case encoder motor (w/ 2 speed push button control) Transfer case shift control module (w/ 2 speed push button control) Transfer case shift control switch (w/ 2 speed push button control) Trlr fuse 32 30a Turn signal/ multi-function switch Underhood fuse block (above left front wheelwell) Vses fuse 61 60a X11 X12 Power Distribution Wiring Diagram (2 of 5) for Chevrolet TrailBlazer 2009 List of elements for Power Distribution Wiring Diagram (2 of 5) for Chevrolet TrailBlazer 2009: 72 (above left front wheelwell) underhood fuse block (in i/p harness, 33 cm from blower motor resistor assembly) (w/ power adjustable pedals) 4.2l 5.3l & 6.0l 87a A/c fuse 30 10a A/c relay A20 A6 x1 Air pump fuse 60a Air suspension compressor (w/ auto air level control) Automatic a/c Aux pwr 1 fuse 46 20a B11 B15 Blower motor control module Blower motor resistor assembly Blwr fuse 35 40a Body control module (bcm) Brake fuse 51 10a C11 Center console accessory power outlet Cigar lighter Data link connector (dlc) Eap fuse 59 15a Eap relay 49 (w/ power adjustable pedals) Ecas fuse 1 30a Electronic adjustable pedal (eap) relay Electronic brake control module (ebcm) Evaporative emission (evap) canister vent solenoid valve Flat- wire Fog lamp fuse 11 15a Fog lamp relay 39 From b ign b fuse 36 (diagram 1 of 5) From c hvac i fuse 39 (diagram 1 of 5) From ignition switch (diagram 1 of 5) Front accessory power outlet Frt wpr fuse 33 25a G201 Hazrd fuse 52 25a Headlamp wpr relay 37 (w/ high pressure headlamp washer) Horn fuse 21 15a Horn relay 40 Instrument panel cluster (ipc) Ipc/dic fuse 24 10a J250 J307 Ltr fuse 13 20a Manual a/c Rear fuse block (below left rear seat) Rear wpr relay 38 Red Secondary air injection (air) pump relay (w/ electronic air injection reactor system) Spare Splice pack jx201 (at lower right front of lower console) Stop lamp fuse 12 25a Stoplamp switch Tbc acc fuse 31 3a Tbc run fuse 52 3a Tcm cnstr fuse 15 10a Tcm fuse 35 10a To ecm fuse 29 (diagram 3 of 5) To lgm/dsm fuse 19 (diagram 4 of 5) Transmission control module (tcm) Turn signal/ hazard flasher module Underhood fuse block (above left front wheelwell) Used) (not Windshield wiper motor Wpr fuse 7 20a Wsw fuse 9 15a Wsw relay 42 Power Distribution Wiring Diagram (3 of 5) for Chevrolet TrailBlazer 2009 List of elements for Power Distribution Wiring Diagram (3 of 5) for Chevrolet TrailBlazer 2009: 54 (in automatic transmission) (not used) (w/ power adjustable pedals) eap relay 1-2 shift solenoid (ss) valve 2-3 shift solenoid (ss) valve 3-2 shift solenoid (ss) valve 4.2l 5.3l & 6.0l Air bag fuse 18 10a Air sol fuse 63 15a Air sol relay 59 Automatic transmission Back/up fuse 27 15a Before breakout to inflatable restraint sensing & diagnostic module) j220 Body control module (bcm) E12 Ecm fuse 29 (5.3l & 6.0l) 10a Ecmi fuse 28 15a Engine control module (ecm) From air sol fuse 54 f (diagram 3 of 5) From hazard fuse 52 d (diagram 2 of 5) From ignition switch (diagram 1 of 5) Fuel pump relay 41 Generator battery control module Hdm fuse 57 15a Hdm relay 46 Hi headlamp relay 43 Ign coils fuse 14 10a Inflatable restraint passenger presence system (pps) module Inflatable restraint sensing & diagnostic module (sdm) Inflatable restraint vehicle rollover sensor Input speed sensor (iss) J133 J134 Park/ neutral position (pnp) switch Pcm b fuse 10 20a Pnk Pwr/trn relay 60 Red Rvc fuse 62 10a Secondary air injection (air) pump relay (4.2l) Security immobilization equipment system Tbc 1 fuse 58 10a Theft deterrent alarm Theft deterrent alarm siren (if equipped) Theft deterrent module (tdm) To air bag fuse 18 (diagram 3 of 5) To ign e fuse 22 (diagram 4 of 5) Torque converter clutch (tcc) pulse width modulation (pwm) solenoid valve Torque converter clutch (tcc) solenoid valve Trans fuse 53 15a Transmission control module (tcm) Underhood fuse block (above left front wheelwell) X175 e Power Distribution Wiring Diagram (4 of 5) for Chevrolet TrailBlazer 2009 List of elements for Power Distribution Wiring Diagram (4 of 5) for Chevrolet TrailBlazer 2009: 66 (in body harness channel on rear floor, 12 cm to left of jx306) (security immobilization equipment system) j374 (in i/p harness, above dash left lower panel, 11 cm from steering column breakout) j239 (not used) A/c relay 44 A19 Amp fuse 11 20a Audio amplifier Automatic a/c Auxiliary hvac control module Body control module (bcm) C10 D10 D12 Ddm fuse 10 10a Digital radio receiver Digital video disc (dvd) player Driver door module (ddm) Driver memory seat module E12 E2 x3 Flat-wire From aux pwr 1 fuse 46 (diagram 2 of 5) From radio fuse 41 h (diagram 4 of 5) From trans fuse 53 g (diagram 3 of 5) From underhood fuse block, i/p battery fuse 48 (diagram 1 of 5) Front passenger door module (fpdm) Garage door opener (gdo) Headlamp switch (if equipped) Hvac b fuse 36 10a Hvac control module Ign e fuse 22 10a Inside rearview mirror Instrument panel cluster (ipc) J341 (in headliner harness, 6.5 cm from breakout to left clearance lamp) Left headlamp leveling actuator (if equipped) Left rear window switch Lgm/dsm fuse 19 10a Liftgate module (lgm) Lt doors circuit breaker 2 25a Oh batt/onstar fuse 27 10a Pdm fuse 12 10a Pnk Premium Radio Radio fuse 41 15a Rear fuse block (below left rear seat) Red Right headlamp leveling actuator (if equipped) Right rear window switch Rt doors circuit breaker 1 25a Stop lamp switch Tbc ign 1 fuse 16 10a To hvac b fuse 36 (diagram 4 of 5) To lgm 2 fuse 3 (diagram 5 of 5) Turn signal/ multi- function switch Underhood fuse block (above left front wheelwell) Vehicle communication interface module (vcim) (w/ vehicle communication system) Vehicle inclination sensor W/ deluxe front bucket seat W/ digital audio system W/ inside rearview mirror & outside rearview mirror W/ rear seat enter- tainment package & garage door opener W/ rear seat enter- tainment package, w/o garage door opener W/o rear seat enter- tainment package, w/ garage door opener X2 a5 X2 d5 Power Distribution Wiring Diagram (5 of 5) for Chevrolet TrailBlazer 2009 List of elements for Power Distribution Wiring Diagram (5 of 5) for Chevrolet TrailBlazer 2009: 39 (diagram 4 of 5) (diagram 5 of 5) (not used) B13 B17 Body control module (bcm) Driver memory seat module Driver seat adjuster switch Driver seat lumbar adjuster switch Flat- wire From amp fuse 11 j From tbc 5 fuse 32 k J318 (in driver's seat harness, 7 cm from breakout to body connector) J319 (in passenger seat harness, 7cm from breakout to body connector) J328 J329 Lgm 2 fuse 3 30a Liftgate module (lgm) Lock relay 18 Locks fuse 21 10a Park lp relay 30 Passenger seat adjuster switch Passenger seat lumbar adjuster switch Rear fuse block (below left rear seat) Rear window wiper motor Rr hvac fuse 13 30a Rr wiper circuit breaker 9 15a Seats circuit breaker 8 30a Sunroof fuse 28 20a Sunroof motor (if equipped) Tbc 2 fuse 7 10a Tbc 3 fuse 4 10a Tbc 4 fuse 40 10a Tbc 5 fuse 32 10a To seats circuit breaker 8 (diagram 5 of 5) Unlock relay 24 W/ deluxe seats W/ memory W/o memory
POWER DOOR LOCKS Power Door Locks Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Power Door Locks Wiring Diagram for Chevrolet TrailBlazer 2009: 55 (in left rear door) left rear door latch (on lower left "b" pillar) g302 (on lower right "b" pillar) g303 87a A12 A13 B10 Bat pos volt Batt Body control module (bcm) (beneath left rear seat, on rear fuse block) C10 D10 Ddm fuse 10a Door ajar sw sig Door lock ctrl Door unlock ctrl Driver door latch (in left front door) Driver door lock switch Driver door lock/ window switch F10 Flat wire G302 (on lower left "b" pillar) G303 (on lower right "b" pillar) Ground Hot at all times J302 J303 Liftgate latch assembly (in liftgate assembly) Liftgate module (lgm) (in center of liftgate) Lock Lock ctrl Lock relay 18 Locks fuse 21 10a Logic Low ref Lr door ajar Lt doors circuit breaker 2 25a Passenger door latch (in right front door) Passenger door lock switch Passenger door lock/ window switch Pdm fuse 10a Power Rear fuse block (below left rear seat) Right rear door latch (in right rear door) Rr door ajar Rt doors circuit breaker 1 25a Serial data Splice pack jx205 (behind left of dash, near headlight switch connector) Splice pack jx306 (in body harness, under right rear seat) Tan Unlock Unlock ctrl Unlock relay 24 X4 a13 X4 a5
POWER MIRRORS Automatic Day/Night Mirror Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Automatic Day/Night Mirror Wiring Diagram for Chevrolet TrailBlazer 2009: 38 (below left rear seat) rear fuse block Ambient air temperature sensor (if equipped) (on left center of radiator support) B12 B6 x2 Body control module (bcm) (beneath left rear seat, on rear fuse block) Computer data lines system E10 E12 Emergency G302 (on lower left "b" pillar) Ground Hot in run or start Ign Ign e fuse 22 10a Inflatable restraint passenger air bag on/off indicator Inside rearview mirror J239 J322 Keypad Keypad green Keypad green ind Keypad red ind Keypad red led sig Keypad sig Led sig Logic Low refr Mirror display Nca Off Onstar Phone Pnk Sens sig Serial data Sply volt Underhood fuse block (above left front wheelwell) Vehicle communication interface module (vcim) (under right rear seat) Power Mirrors Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Power Mirrors Wiring Diagram for Chevrolet TrailBlazer 2009: 60 (if equipped) 5v ref B11 Battery C10 Class 2 serial data Computer data lines system D10 Ddm fuse 10 10a Defogger switch Down Down sig Driver Driver door lock/window switch Driver outside rearview mirror Driver sig Fold G302 (on lower left "b" pillar) G303 (on lower right "b" pillar) Ground Heater ground Heating element Horiz pos sig Horiz pos signal Horizontal Hot at all times Hvac class 2 serial data Hvac control module (center of dash) Ign voltage J302 J303 Left Left sig Logic Low ref Lt doors circuit breaker 2 25a Mir common Mir down ctrl Mir right ctrl Mirror extend Mirror heater Mirror retract Nca Outside rearview mirror switch Pass Passenger door lock/window switch Passenger outside rearview mirror Passenger sig Pdm fuse 12 10a Pnk R def Rear fuse block (below left rear seat) Red Right Right sig Rt doors circuit breaker 1 25a Tan Up sig Vert pos sig Vertical
POWER SEATS 8-Way Adjustable Power Seat Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for 8-Way Adjustable Power Seat Wiring Diagram for Chevrolet TrailBlazer 2009: 27 Driver seat adjuster switch Driver seat front vertical motor (under driver seat) Driver seat horizontal motor (under driver seat) Driver seat rear vertical motor (under driver seat) Driver seat recline motor (under driver seat) Fr dn Fr up Fwd G302 (on lower G303 (on lower right "b" pillar) Hot at all times J311 J317 J318 J319 Left "b" pillar) Passenger seat adjuster switch Passenger seat front vertical motor (under passenger seat) Passenger seat horizontal motor (under passenger seat) Passenger seat rear vertical motor (under passenger seat) Passenger seat recline motor (under passenger seat) Rear fuse block (below left rear seat) Rr dn Rr up Rwd Seats circuit breaker 8 30a Tan Driver Heated Seat Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Driver Heated Seat Wiring Diagram for Chevrolet TrailBlazer 2009: 47 (on lower left "b" pillar) g302 A11 A12 B10 B11 B12 Back only ind Back only indicator Back only select Bat (+) Batt Batt (+) Batt + voltage Class 2 serial data Computer data lines system Ddm fuse 10a Door locks & windows systems Driver back heated seat element (behind seat back upholstery) Driver cushion heated seat element (behind seat cushion upholstery) Driver door lock/window switch Driver heated seat switch Driver memory seat module (below left front seat) G302 (on lower left "b" pillar) Gnd Ground Heat mode select Heated seat ctrl Heated seat pwr Heated seat therm sig Hi heat ind Hi heat indicator Hot at all times J302 J311 J327 (in driver seat harness, 6.5 cm from breakout to driver cushion heated seat element) Lgm/dsm fuse 19 10a Low heat ind Low heat indicator Low ref Lt doors circuit breaker 2 25a Med heat ind Med heat indicator Nca Rear fuse block (below left rear seat) Seats circuit breaker 8 30a Serial data X2 c10 Lumbar Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Lumbar Wiring Diagram for Chevrolet TrailBlazer 2009: 16 Driver lumbar horizontal motor (in driver seat back) Driver seat lumbar adjuster switch Fwd G302 (on lower left "b" pillar) G303 (on lower right "b" pillar) Hot at all times J311 J317 J318 J319 Passenger lumbar horizontal motor (in passenger seat back) Passenger seat lumbar adjuster switch Pnk Rear fuse block (below left rear seat) Rwd Seats circuit breaker 8 30a Passenger"s Heated Seat Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Passenger"s Heated Seat Wiring Diagram for Chevrolet TrailBlazer 2009: 46 A10 B12 Back only ind Back only indicator Back only select Bat (+) Batt Batt (+) Batt + voltage Computer data lines system D10 Door locks & windows systems Driver memory seat module (below left front seat) Element ctrl G302 (on lower left "b" pillar) G303 (on lower right "b" pillar) Gnd Ground Heat mode select Heated seat ctrl Heated seat pwr Hi heat ind Hi heat indicator Hot at all times J303 J311 J316 (in passenger seat main power harness, 25 cm back from lumbar adjuster switch connector) Lgm/dsm fuse 19 10a Low heat ind Low heat indicator Med heat ind Med heat indicator Nca Passenger back heated seat element (behind seat back upholstery) Passenger cushion heated seat element (behind seat cushion upholstery) Passenger door lock/window switch Passenger heated seat switch Pdm fuse 10a Pnk Rear fuse block (below left rear seat) Rt doors circuit breaker 1 25a Seats circuit breaker 8 30a Serial data Tan Temp sens sig X2 a5
POWER TOP/SUNROOF Power Top/Sunroof Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Power Top/Sunroof Wiring Diagram for Chevrolet TrailBlazer 2009: 17 A12 Body control module (bcm) (beneath left rear seat, on rear fuse block) Close Close sig Flat wire G306 (on body panel, rear of left rear door) Gnd Hot at all times Interior lights system Logic Low ref Open Rear fuse block (below left rear seat) Sunroof control module Sunroof fuse 28 20a Sunroof switch Sunroof switch open signal
POWER WINDOWS Power Windows Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Power Windows Wiring Diagram for Chevrolet TrailBlazer 2009: 53 (on lower left "b" pillar) Battery Body control module (bcm) (beneath left rear seat, on rear fuse block) C12 Class 2 data D12 Ddm fuse 10 10a Down Down input Down output Down signal output Driver door lock/window switch Driver window motor (in left front door) Driver window switch E12 F12 Flat wire Front pass window switch Front passenger window motor (in right front door) G302 G303 (on lower right "b" pillar) Ground Hot at all times J303 Left rear window motor (in left rear door) Left rear window switch Lockout indicator Lockout switch Logic Lr down sig Lr lockout control Lr up sig Lt doors circuit breaker 2 25a Motor down control Motor up control Passenger door lock/window switch Rear fuse block (below left rear seat) Right rear window motor (in right rear door) Right rear window switch Rr down sig Rr lockout control Rr up sig Rt doors circuit breaker 1 25a Splice pack jx205 (behind left of dash, near headlight switch connector) Splice pack jx306 (in body harness, under right rear seat) Switch power Switch pwr Tan Up input Up output Up signal output Window dn Window up
RADIO Base Radio Wiring Diagram, with Rear Seat Audio (1 of 2) for Chevrolet TrailBlazer 2009 List of elements for Base Radio Wiring Diagram, with Rear Seat Audio (1 of 2) for Chevrolet TrailBlazer 2009: 55 A10 A11 A12 Auxiliary hvac control module (under lower console) B10 B11 B12 Bare Cellular & navigation antenna Coax Digital radio antenna Digital radio receiver (if equipped) (right side of dash, behind glove box) Drain wire Dvd player circuit G102 (left side of engine compt, near rear of underhood fuse block) G201 Ground Hot at all times Hvac b fuse 36 10a Instrument cluster system J202 J307 L aud sig + Lf out + Lf out - Logic Lr low level audio sig + Lr low level audio sig - Lr out + Lr out - Lr speaker out + Lr speaker out - Power distribution system R aud sig + Radio Radio antenna Radio fuse 41 15a Radio on sig Rear fuse block (below left rear seat) Remote l sig Remote out - Rf out + Rf out - Rr low level audio sig + Rr low level audio sig - Rr out + Rr out - Rr speaker out + Rr speaker out - Serial data Splice pack jx201 (at lower right front of lower console) Splice pack jx205 (behind left of dash, near headlight switch connector) Tan Vehicle communication interface module (vcim) (under right rear seat) Vss Base Radio Wiring Diagram, with Rear Seat Audio (2 of 2) for Chevrolet TrailBlazer 2009 List of elements for Base Radio Wiring Diagram, with Rear Seat Audio (2 of 2) for Chevrolet TrailBlazer 2009: 26 A12 Body control module (bcm) (beneath left rear seat, on rear fuse block) Inflatable restraint steering wheel module coil (in steering wheel column) Left front speaker Left front tweeter speaker Left rear speaker Pnk Radio control signal Right front speaker Right front tweeter speaker Right rear speaker Seek down Seek prog Seek up Seek voice Serial data Source down Source up Tan Upper left steering wheel control switch assembly Upper right steering wheel control switch assembly Volume down Volume up Wiper/ washer system X201 X277 Base Radio Wiring Diagram, without Rear Seat Audio for Chevrolet TrailBlazer 2009 List of elements for Base Radio Wiring Diagram, without Rear Seat Audio for Chevrolet TrailBlazer 2009: 57 A10 A11 A12 A13 A14 A15 A16 B10 B11 B12 B13 B14 B15 Body control module (bcm) (beneath left rear seat, on rear fuse block) Cellular & navigation antenna Coax G102 (left side of engine compt, near rear of underhood fuse block) Ground Hot at all times Inflatable restraint steering wheel module coil (in steering wheel column) J202 Left front speaker Left front tweeter speaker Left rear speaker Lf out + Lf out - Lr out + Lr out - Pnk Radio Radio antenna Radio control signal Radio fuse 41 15a Rear fuse block (below left rear seat) Rf out + Rf out - Right front speaker Right front tweeter speaker Right rear speaker Rr out + Rr out - Seek down Seek prog Seek up Seek voice Serial data Source down Source up Splice pack jx205 (behind left of dash, near headlight switch connector) Tan Upper left steering wheel control switch Upper right steering wheel control switch Volume down Volume up Wiper/ washer system X201 X277 DVD Player Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for DVD Player Wiring Diagram for Chevrolet TrailBlazer 2009: 18 Audio common B(+) Bare Cl 2 ser data Computer data lines system Digital radio receiver (if equipped) (right side of dash, behind glove box) Digital video disc (dvd) display Drain wire G302 (on lower left "b" pillar) Ground Hot at all times J322 J341 (w/ garage door opener) L audio sig (+) Oh batt/ onstar fuse 27 10a R audio sig (+) Radio Rear fuse block (below left rear seat) Premium Radio Wiring Diagram (1 of 2) for Chevrolet TrailBlazer 2009 List of elements for Premium Radio Wiring Diagram (1 of 2) for Chevrolet TrailBlazer 2009: 43 A10 A11 A12 B10 B11 B12 Bare Cellular & navigation antenna Coax Digital radio antenna Digital radio receiver (if equipped) (right side of dash, behind glove box) Drain wire Dvd player circuit G102 (left side of engine compt, near rear of underhood fuse block) Ground Hot at all times Instrument cluster system J202 L aud sig + Lf out + Lf out - Lr out + Lr out - Mute signal Pnk R aud sig + Radio Radio antenna Radio fuse 41 15a Radio on sig Rear enable Rear fuse block (below left rear seat) Remote l sig Remote out - Rf out + Rf out - Rr out + Rr out - Serial data Splice pack jx205 (behind left of dash, near headlight switch connector) Tan Vehicle communication interface module (vcim) (under right rear seat) Vss Premium Radio Wiring Diagram (2 of 2) for Chevrolet TrailBlazer 2009 List of elements for Premium Radio Wiring Diagram (2 of 2) for Chevrolet TrailBlazer 2009: 66 A10 A11 A12 Amp fuse 11 20a Audio amplifier (on right side of cargo area, behind trim panel) B10 B11 B12 Bare Body control module (bcm) (beneath left rear seat, on rear fuse block) Drain wire G102 (left side of engine compt, near rear of underhood fuse block) G402 (on lower right "d" pillar) Ground Hot at all times Inflatable restraint steering wheel module coil (in steering wheel column) J202 J402 Left front speaker Left front tweeter speaker Left rear speaker Lf low lev aud sig + Lf low lev aud sig - Lf mid spkr out + Lf mid spkr out - Lf spkr out + Lf spkr out - Lr low lev aud sig + Lr low lev aud sig - Lr spkr out + Lr spkr out - Mute sig Nca Pnk Radio control signal Radio on sig Rear fuse block (below left rear seat) Rear seat aud enable sig Rf low lev aud sig + Rf low lev aud sig - Rf mid spkr out + Rf mid spkr out - Rf spkr out + Rf spkr out - Right front speaker Right front tweeter speaker Right rear speaker Rr low lev aud sig + Rr low lev aud sig - Rr spkr out + Rr spkr out - Seek down Seek prog Seek up Seek voice Serial data Source down Source up Tan Upper left steering wheel control switch Upper right steering wheel control switch Volume down Volume up Wiper/ washer system X201 X277
SHIFT INTERLOCK Ignition Lock Solenoid Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Ignition Lock Solenoid Wiring Diagram for Chevrolet TrailBlazer 2009: 11 Automatic transmission shift lock control actuator (in floor shifter) G201 Hot in acc or run or start Ign 0 fuse 47 10a Ignition lock cyl switch Ignition lock cylinder control actuator (in upper steering column) J226 J320 Jx201 (at lower right front of lower console) Pnk Rear fuse block (below left rear seat) Shift Interlock Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Shift Interlock Wiring Diagram for Chevrolet TrailBlazer 2009: 16 A/t shift lock A/t shift lock control solenoid Automatic transmission shift lock control actuator (in floor shifter) Backup fuse 27 15a Btsi fuse 25 10a G201 Hot in run or start J211 Jx201 (at lower right front of lower console) P/n Park lock solenoid Park/ neutral position (pnp) switch (on lower left side of transmission) Pnk Red Stop lamp switch (on brake pedal assembly) Underhood fuse block (above left front wheelwell)
STARTING/CHARGING Charging Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Charging Wiring Diagram for Chevrolet TrailBlazer 2009: 33 5.3l & 6.0l Air conditioning system Batt + volt Battery Battery voltage Charge indicator Class 2 Class 2 data Engine control module (ecm) (2.4l: lower left front of engine) (5.3l/6.0l: below battery) G101 (left side of engine compartment, near front of underhood fuse block) G106 (on engine side of left front wheelwell) G108 (on lower left side of engine) G110 (on lower left side of engine) Gen field duty cyc Gen field duty cycle Gen reg cntrl Gen turn on Generator Generator battery control module Generator regulator control Ground Instrument panel cluster (ipc) Ipc/dic fuse 24 10a J101 J115 J206 Jx205 (behind left of dash, near headlight switch connector) Logic Red Rvc fuse 62 15a Starter Underhood fuse block (above left front wheelwell) Volts Starting Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Starting Wiring Diagram for Chevrolet TrailBlazer 2009: 28 5.3l & 6.0l A10 Acc Automatic transmission Automatic transmission internal mode switch (ims) Batt Battery Crnk fuse 17 10a Engine control module (ecm) (4.2l: lower left front of engine) (5.3l/6.0l: below battery) F11 G101 (left side of engine compartment, near front of underhood fuse block) G106 (on engine side of left front wheelwell) G108 (on lower left side of engine) G110 (on lower left side of engine) Generator Ign a fuse 34 40a Ignition switch J101 Lock P/n Red Run Start Starter motor Starter relay Strtr relay 47 Underhood fuse block (above left front wheelwell) Volt crank
SUPPLEMENTAL RESTRAINTS Supplemental Restraints Wiring Diagram (1 of 2) for Chevrolet TrailBlazer 2009 List of elements for Supplemental Restraints Wiring Diagram (1 of 2) for Chevrolet TrailBlazer 2009: 62 (in steering wheel) inflatable restraint wheel module (left side of dash) inflatable restraint i/p module (left side of engine compt, near rear of underhood fuse block) g102 (w/ head curtain air bag) Class 2 serial data Discrimination sens sig Driver seat belt buckle Forwrd discrimination sens sig Ground Hi driver seat pos sens Hi passenger seat position I/p mod stage 1 hi ctrl I/p mod stage 1 lo ctrl I/p mod stage 2 hi ctrl I/p mod stage 2 lo ctrl Ignition 1 voltage Inflatable restraint sensing & diagnostic module (sdm) (below rear of center console) Inflatable restraint steering wheel module coil (in steering wheel column) J202 J308 J310 (in body harness, 9 cm from breakout to x314) J315 L seat belt preten hi ctrl L seat belt preten lo ctrl L seat belt sw L side impact mod hi ctrl L side impact mod lo ctrl L side impact sensor sig L side impact sensor voltage L sig discriminating sens Left inflatable restraint front end sensor Left inflatable restraint seat position sensor (sps) (on left front outboard seat track) Left inflatable restraint side impact sensor (sis) (w/ head curtain air bag) (in left front door, near door latch) Left seat belt pretensioner (under left front of seat, part of retractor) Nca Passenger seat belt buckle Pin shorting bars engaged Pnk R discrimination sens sig R seat belt preten hi ctrl R seat belt preten lo ctrl R seat belt sw R side impact mod hi ctrl R side impact mod lo ctrl R side impact sensor sig R side impact sensor voltage Red Right inflatable restraint front end sensor Right inflatable restraint seat position sensor (sps) (on right front outboard seat track) Right inflatable restraint side impact sensor (sis) (w/ head curtain air bag) (in right front door, near door latch) Right seat belt pretensioner (under right front of seat, part of retractor) Seat belt switch Seat position sensor return Serial data link Shorting bar Str wheel mod stage 1 hi ctrl Str wheel mod stage 1 lo ctrl Str wheel mod stage 2 hi ctrl Str wheel mod stage 2 lo ctrl Tan When module connector is disconnected from harness: (shorting bars are connected between following pins: 4-5, 6-7, 8-9, 10-11, 12-13, 14-15, 16-17 & 18-19) X275 Supplemental Restraints Wiring Diagram (2 of 2) for Chevrolet TrailBlazer 2009 List of elements for Supplemental Restraints Wiring Diagram (2 of 2) for Chevrolet TrailBlazer 2009: 46 (w/ head curtain air bag) 12v Air bag fuse 10a Air bag ind B12 Class 2 serial data Computer data lines system E12 G102 (left side of engine compt, near rear of underhood fuse block) Ground Hot in run or start Ign e fuse 10a Ignition 1 voltage Inflatable restraint front passenger presence system (pps) module (under passenger seat) Inflatable restraint front passenger presence system (pps) sensor (under passenger seat) Inflatable restraint passenger air bag on/off indicator Inflatable restraint vehicle rollover sensor (rear cargo floor) Inside rearview mirror (w/ child presence detector) Instrument panel cluster (ipc) J202 J203 (in i/p harness, 5 cm from breakout to rollover sensor) J220 J239 Left inflatable restraint roof rail module (in roof, above driver door) Logic Nca Occupant pressure sens sig Occupant pressure sens volt ref Occupant pressure sensor lo ref Off Pass air bag off ind ctrl Pass air bag on ind ctrl Pass seat belt tension sens lo ref Pass seat belt tension sens sig Pass seat belt tension sens volt ref Passenger inflatable restraint seat belt tension sensor (integral to passenger seat belt retractor) Pnk Rear fuse block (below left rear seat) Right inflatable restraint roof rail module (in roof, above front passenger's door) Seat belt ind Serial data link occupant sens Shorting bar Splice pack jx205 (behind left of dash, near headlight switch connector) Tan Underhood fuse block (above left front wheelwell) X2 b6
TRANSMISSION A/T Wiring Diagram (1 of 2) for Chevrolet TrailBlazer 2009 List of elements for A/T Wiring Diagram (1 of 2) for Chevrolet TrailBlazer 2009: 55 1-2 ss valv ctrl 2-3 ss valv ctrl Accessory volt Automatic transmission Automatic transmission internal mode switch (ims) B11 Batt volt Computer data lines system Exterior lights system Front hi sig G108 (on lower left side of engine) Gnd Ground distribution system Hot at all times Hot in acc or run Hot in run or start Ign 1 volt Ign e fuse 22 10a Iss low sig Iss sig J101 J105 J239 Low ref P/n Pc sol valv hi ctrl Pc sol valv lo ctrl Pnk Rear fuse block (below left rear seat) Red Serial data (+) Serial data (-) Serial data bus (+) Serial data bus (-) Stop lamp fuse 12 25a Stop lamp sw sig Stop lamp switch (on brake pedal assembly) Tan Tc pwm s valv ctrl Tcc sol valv ctrl Tcm cnstr fuse 15 10a Tcm fuse 35 10a Tft sens sig Trans fuse 53 15a Trans ran sw sig a Trans ran sw sig b Trans ran sw sig c Trans ran sw sig p Transmission control module (tcm) (left front of engine compt) Underhood fuse block (above left front wheelwell) Underhood fuse block (above left front x1 wheelwell) Veh stop fuse 34 15a Vehicle speed sensor (vss) (inside automatic transmission assembly) Vss high sig Vss low sig A/T Wiring Diagram (2 of 2) for Chevrolet TrailBlazer 2009 List of elements for A/T Wiring Diagram (2 of 2) for Chevrolet TrailBlazer 2009: 23 1-2 shift solenoid (ss) valve 2-3 shift solenoid (ss) valve A/t fluid temp sensor Automatic transmission Chmsl sply Engine control module (ecm) (4.2l: lower left front of engine) (except 4.2l: below battery) Front hi sig Ign Input speed sensor (iss) Instrument panel cluster J133 J134 Logic Malfunction indicator lamp Mil ind ctrl Pnk Pnp sw sig Pressure control (pc) solenoid valve Prnd321 Red Tan Torque converter clutch (tcc) pulse width modulation (pwm) solenoid valve Torque converter clutch (tcc) solenoid valve Transfer Case Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Transfer Case Wiring Diagram for Chevrolet TrailBlazer 2009: 64 (on bottom left side of dash) data link connector 2 hi 2 hi ind 4 hi 4 hi ind 4 lo 4 lo ind 4 lo lock ind 4wd fuse 48 15a 4wd lo sig 5v ref Atc fuse 8 30a Awd Awd ind Axle act Axle sw sig B11 Battery volt Class 2 data E11 E5 x3 Enc lo ref Encoder sig Engine control module (ecm) (4.2l: lower left front of engine) (except 4.2l: below battery) Front axle actuator (on inner flange of right front axle) Front propshaft speed sensor (on left front of transfer case) Front sig hi Front sig lo G102 (left side of engine compt, near rear of underhood fuse block) G105 (in engine compt, on firewall, near i/p harness pass-through) G107 (on lower left side of engine) Ground Ground distribution system Hot at all times Hot in run Hot in run or start Ign e fuse 22 10a Instrument panel cluster (ipc) Interior lights system J202 J239 Lock sol Logic Motor ctrl a Motor ctrl b Neut Neutral ind Pnk Power distribution system Rear fuse block (below left rear seat) Rear propshaft speed sensor (on right rear of transfer case) Rear sig hi Rear sig lo Red Service 4wd ind Splice pack jx205 (behind left of dash, near headlight switch connector) Sw sig Tan Transfer case encoder motor (part of transfer case) Transfer case shift control module (behind lower left side of dash) Transfer case shift control switch Underhood fuse block (above left front wheelwell) Underhood fuse block (above left front wheelwell) x3 X2 a11
TRUNK, TAILGATE, FUEL DOOR Liftgate Release Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Liftgate Release Wiring Diagram for Chevrolet TrailBlazer 2009: 30 Actuator lck cntrl x2 Actuator unlck ctrl Ajar switch Class 2 serial data Computer data lines system Defogger system Door locks system G401 (on lower left "d" pillar) Gnd Hot at all times Instrument panel cluster (ipc) J901 Lgm 2 fuse 3 30a Lgm/dsm fuse 19 10a Liftgate ajar ind Liftgate ajar sw Liftgate latch assembly (in liftgate assembly) Liftgate module (in center of liftgate) Liftgate open sw Liftgate window latch assembly Logic Low ref Nca Open switch Rear defog volt Rear fuse block (below left rear seat) Serial data rear wind mtr spd Tan Wiper/washer system X2 b5
WARNING SYSTEMS Warning Systems Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Warning Systems Wiring Diagram for Chevrolet TrailBlazer 2009: 67 (at lower right front of lower console) splice pack jx201 (below left rear seat) rear fuse block (in body harness, 9 cm from breakout to x314) j310 12v A12 B10 B13 B13 x4 Belt sw input Body control module (bcm) (beneath left rear seat, on rear fuse block) Class 2 serial data Computer data lines system Door ajar Dr ajar input Dr ajar sw sig Driver door latch assembly (in left front door) Driver door lock/ window switch Driver seat belt buckle Driver seat belt switch Engine control module (ecm) (4.2l: lower left front of engine) (except 4.2l: below battery) F10 Flat wire G102 (left side of engine compt, near rear of underhood fuse block) G201 G302 (on lower left "b" pillar) G303 (on lower right "b" pillar) Hdlmp on sig Head Headlamp switch Hot at all times Ignition key alarm switch Ignition switch Inflatable restraint sensing & diagnostic module (sdm) (below rear of center console) Instrument panel cluster (ipc) J227 J302 J303 J315 Key in ign sw Left rear door latch assembly (in left rear door) Liftgate ajar sw Liftgate ajar switch (in liftgate) Liftgate latch assembly (in liftgate assembly) Liftgate module (lgm) (in center of liftgate) Liftgate open sw Liftglass ajar sw Logic Low reference Low tire pressure ind Lr dr ajar sig Nca Off Park Passenger door latch assembly (in right front door) Passenger door lock/ window switch Radio Rear fuse block (below left rear seat) Right rear door latch assembly (in right rear door) Rr dr ajar sig Seat belt indicator Seat position sens rtn Serial data Sw on input Tail gate ajar ind Tan Tbc 5 fuse 32 10a X3 e3
WIPER/WASHER Front Wiper/Washer Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Front Wiper/Washer Wiring Diagram for Chevrolet TrailBlazer 2009: 43 A12 B12 Body control module (bcm) (beneath left rear seat, on rear fuse block) Class 2 serial data Computer data lines system Driver information center (dic) display Frt wpr fuse 33 25a G102 (left side of engine compt, near rear of underhood fuse block) G103 (left front of engine compt, on left side of radiator support) G105 (in engine compartment, on firewall, near i/p harness pass-through) Ground High delay mist Hot at all times Hot in run or acc Ign Instrument panel cluster (ipc) J113 J227 Logic Low delay mist Low wsh fluid ind sig Lsd Mist Off Pnk Pulse Rear fuse block (below left rear seat) Red Tan Turn signal/ multi-function switch Underhood fuse block (above left front wheelwell) Wash Windshield washer fluid level switch (w/ drive information center display) (mounted on windshield washer fluid reservoir) Windshield washer fluid pump (on washer fluid reservoir) Windshield washer relay control Windshield wiper motor (on upper center of firewall) Windshield wiper switch high signal Windshield wiper switch signal 1 Windshield wiper switch signal 2 Windshield wiper/ washer switch Wiper sw sig 2 Wsw fuse 9 15a Wsw relay 42 Headlamp Washer Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Headlamp Washer Wiring Diagram for Chevrolet TrailBlazer 2009: 14 Body control module (bcm) (beneath left rear seat, on rear fuse block) G103 (left front of engine compt, on left side of radiator support) G201 Hdlp washer rly ctrl Hdlp washer sw sig Headlamp switch Headlamp washer fluid pump (right front of engine compartment) Headlamp washer switch Headlamp wpr relay 37 Hot at all times J113 Splice pack jx201 (at lower right front of lower console) Underhood fuse block (above left front wheelwell) Wpr fuse 7 20a Rear Wiper/Washer Wiring Diagram for Chevrolet TrailBlazer 2009 List of elements for Rear Wiper/Washer Wiring Diagram for Chevrolet TrailBlazer 2009: 31 (in body harness, under right rear seat) splice pack jx306 12 volt reference Battery Body control module (bcm) (beneath left rear seat on rear fuse block) Class 2 ser data Cont G103 (left front of engine compt, on left side of radiator support) G401 (on lower left "d" pillar) Hot at all times J113 J901 Liftgate module (lgm) (in center of liftgate) Logic Off Pnk Rear fuse block (below left rear seat) Rear wash rly ctrl Rear window motor speed signal Rear window mtr speed signal x2 Rear window washer fluid pump (on washer fluid reservoir) Rear window wiper motor (inside tailgate) Rear window wiper/washer switch Rear wiper relay 38 Rear wiper sw sig Rr wiper circuit breaker 9 15a Sound systems Splice pack jx205 (behind left of dash, near headlight switch connector) Underhood fuse block (above left front wheelwell) W/ steering wheel controls Wash Wpr fuse 7 20a
