All Wiring Diagrams for GMC Jimmy 1999 model – Schémas de câblage pour voitures

AIR CONDITIONING

Automatic A/C Wiring Diagram for GMC Jimmy 1999

List of elements for Automatic A/C Wiring Diagram for GMC Jimmy 1999:

(at a/c accumulator) a/c compressor pressure cycling switch
(body harness, below i/p fuse block) sp201
(dash harness, between breakout to ground splice & breakout to right courtesy lamp)
(dome harness between breakouts to inside air temperature sensor & left sunshade mirror lamp, 5 cm from breakout to sensor)
(engine harness, between breakouts to rear heated oxygen sensors connector & body harness connector, 7 cm from breakout to heated oxygen sensor connector)
(engine harness, on cathode side of a/c compressor clutch diode, in breakout to a/c compressor & cutoff switch) s104
(right rear of cylinder head) g117
5 volt ref
5v ref
A nca
A/c
A/c comp rly ctrl
A/c compres- sor clutch
A/c compres- sor clutch diode
A/c compressor clutch relay
A/c compressor high pressure switch (on rear of a/c compressor)
A/c cycling sw sig
A/c fuse 10a
A/c request
A/c request sig
A10
Air inlet
Air temperature valve sensor & motor (on top right side of heater)
B nca
B10
Battery
Blower motor (on right rear of engine compartment)
Body relay block (behind left side of dash, near i/p fuse block)
C10
C11
C12
C13
C14
C15
C16
C2 underhood fuse block (on top of left front fender)
Class 2
Class 2 data
D10
D11
D12
D13
D14
D15
D16
Data link connector (dlc) (partial) (under left side of dash)
Defogger system
Defrost
Elec actuator drive
Elec actuator fbck
Electric sensor rtn
Electronic climate control (ecc) module
G104 (left rear of engine compartment)
G117 (right rear of cylinder head)
G201 (right side of dash)
G202 (left side of dash)
Gnd
Ground
Heater
Heater/ defrost
Hot at all times
Hot in run
Hot in run & start
Hvac 1 fuse 21 10a
Hvac fuse 30a
Hvac solenoid (behind right side of dash, on hvac assembly)
I/p fuse block (on left end of dash)
Ign e fuse 10a
Ignition
Illumination
Inside air temperature sensor (in roof over driver's door)
Inside temp sens sig
Interior lights system
Lower disc temp sens
Lower discharge air temperature sensor (on left side of floor air outlet)
Mode 1 drv
Mode 2 drv
Mode 3 drv
Mode 4 drv
Mode 5 drv
Nca
Outside air temperature sensor (on right radiator support bracket)
Outside temp sens sig
Power mirrors system (automatic day-night mirrors)
Pwm signal output
Rdo batt fuse 19 15a
Red
Rr defog
S106
S118 (body harness, between breakouts to blower motor & blower motor relay)
S240 (dash harness, 4 cm from breakout to bcm module connector & breakout to instrument cluster)
S288
S302
Sensor gnd
Solid state
Sp200 (on body harness, center front of dash)
Sp203 (dash harness, in front of ashtray)
Sun load temp sens
Sunload sensor (top center of dash)
Tan
Underhood fuse block (on top of left front fender)
Upper disc temp sens
Upper discharge air temperature sensor (on top front center of dash, behind radio in duct)
Vehicle control module (vcm) (on right front of engine compartment)

Compressor Wiring Diagram, Auto A/C for GMC Jimmy 1999

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List of elements for Compressor Wiring Diagram, Auto A/C for GMC Jimmy 1999:

(at a/c acumulator) a/c compressor pressure cycling switch
(engine harness between breakouts to rear heated oxygen sensors connector & body harness connector, 7 cm from breakout to heated oxygen sensor connector) s106
(engine harness, on cathode side of a/c compressor clutch diode, in breakout to a/c compressor & cutoff switch) s104
(right rear of cylinder head) g117
A/c comp rly ctrl
A/c compresor clutch
A/c compressor clutch diode
A/c compressor clutch relay
A/c compressor high pressure switch (on rear of a/c compressor)
A/c cycling sw sig
A/c fuse 10a
A/c request
A/c request sig
C11
Class 2
D12
Electronic climate control module
Hot at all times
Hot in run & start
Ign e fuse 10a
Nca
S103 (engine harness, on anode side of a/c compressor clutch diode, in breakout to a/c compressor & cutoff switch)
Sp201 (body harness, below i/p fuse block)
Underhood fuse block (on top of left front fender)
Vehicle control module (vcm) (on right front of engine compartment)

Compressor Wiring Diagram, Manual A/C for GMC Jimmy 1999

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List of elements for Compressor Wiring Diagram, Manual A/C for GMC Jimmy 1999:

(engine harness, between breakouts to rear heated oxygen sensors connector & body harness connector, 7 cm from breakout to heated oxygen sensor connector) s106
(right rear of cylinder head) g117
A/c
A/c comp rly ctrl
A/c compresor clutch
A/c compressor clutch diode (in a/c compressor clutch wire harness, behind compressor)
A/c compressor clutch relay
A/c compressor high pressure switch (on rear of a/c compressor)
A/c compressor pressure cycling switch (at a/c accumulator)
A/c cycling sw sig
A/c fuse 10a
A/c request sig
Bi-level a/c
Blend
D12
Defrost
Diode, in breakout to a/c compressor & cutoff switch) s104
Heat
Heater & a/c controller
Hot at all times
Hot in run
Hot in run & start
Hvac fuse 9 20a
I/p fuse block (on left end of dash)
Ign e fuse 10a
Max a/c
Nca
Off
S103 (engine harness, on anode side of a/c compressor clutch diode, in breakout to a/c compressor & cutoff switch)
Underhood fuse block (on top of left front fender)
Vehicle control module (vcm) (on right front of engine compartment)
Vent

Manual A/C Wiring Diagram for GMC Jimmy 1999

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List of elements for Manual A/C Wiring Diagram for GMC Jimmy 1999:

(dash harness, between breakouts for radio & bcm connector c3, 8 cm from breakout to radio) s205
(engine harness, between breakouts to rear heated oxygen sensors connector & body harness connector, 7 cm from breakout to heated oxygen sensor connector) s106
(left rear of engine compartment) g104
(left side of dash) g202
(right rear of cylinder head) g117
(right side of dash) g201
0.26 ohms
0.71 ohms
2.10 ohms
87a
A/c
A/c comp rly ctrl
A/c compressor clutch
A/c compressor clutch diode
A/c compressor clutch relay
A/c compressor high pressure switch (on rear of a/c compressor)
A/c compressor pressure cycling switch (at a/c accumulator)
A/c cycling sw signal
A/c fuse 10a
A/c request signal
Air temperature valve electric actuator (on top right side of heater)
Bi-level
Bi-level a/c
Blend
Blower motor (on right rear of engine compartment)
Blower motor relay (on center rear of engine compartment)
Blower motor resistor (on right rear of engine compartment, on blower module)
Blower switch
D (not used)
D12
Def
Heat
Heater & a/c controller
High
Hot at all times
Hot in park & head
Hot in run
Hot in run & start
Hvac 1 fuse 21 10a
Hvac fuse 30a
Hvac fuse 9 20a
I/p fuse block (on left end of dash)
If equipped
Ign e fuse 10a
Illum (x4)
Illum fuse 12 10a
Low
Max a/c
Med
Mode door switch
Nca
Norm
Off
Pickup
Power mirrors system (automatic day/night mirror)
S103 (engine harness, on anode side of a/c compressor clutch diode, in breakout to a/c compressor & cutoff switch)
S118 (body harness, between breakouts to blower motor & blower motor relay)
S215 (dash harness, in breakout to heater controller connectors, 10 cm into breakout)
S217 (dash harness, in breakout to heater controller connectors, 6 cm into breakout)
Servo amplifier
Sp202 (strapped to body harness, at left center of dash)
Sp203 (dash harness, in front of ashtray)
Switch) s104
Tan
Temp control
Underhood fuse block (on top of left front fender)
Utility
Vehicle control module (vcm) (on right front of engine compartment)
Vent

ANTI-LOCK BRAKES

Anti-lock Brake Wiring Diagrams for GMC Jimmy 1999

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List of elements for Anti-lock Brake Wiring Diagrams for GMC Jimmy 1999:

2.2l
4.3l
4wd fuse 15 10a
A10
A12
Abs fuse 22 10a
Abs maxi fuse 60a
Anti-lock indicator
B10
Body control module (bcm) (under dash on heater case)
Brake lamp control
Brake pressure warning switch (right end of ebcm)
Brake sw
Brake sw input
Brake warning indicator
Data link connector (under left side of dash)
E14
Ebcm ground
Electronic brake control module (left front inner fender)
Front axle switch (on front axle)
G108 (left radiator support)
G114 (4.3l) (left rear of engine)
G117 (right rear of engine block)
G120 (2.2l) (right side of engine)
Ground
Hot at all times
Hot in run
I/c logic
I/p fuse block
Ign
Instrument cluster
Left front wheel speed sensor
Lft frt sensor (+)
Lft frt sensor (-)
Nca
Parking brake warning lamp
Powertrain control module (right front of engine compt)
Pump motor
Pump motor high
Pump motor low
Pump motor power
Rdo batt fuse 19 10a
Red
Right front wheel speed sensor
Rt frt sensor (+)
Rt frt sensor (-)
S121 (body harn, between breakouts to vcm and blower motor relay)
S138 (body harn, between blower motor res and wiper motor breakouts)
S240
Serial data line
Splice pack (sp200) (body harn, center front of dash)
Splice pack (sp201) (left side of dash, below fuse block)
Stop lamp switch (on brake pedal support bracket)
Tan
To transfer case control
Transfer case control module
Underhood fuse block
Vehicle control module (right front of engine compt)
Voltage reg
Vss
Vss input

ANTI-THEFT

Forced Entry Wiring Diagram for GMC Jimmy 1999

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List of elements for Forced Entry Wiring Diagram for GMC Jimmy 1999:

(2 door, liftgate)
(4 door endgate, pickup)
(envoy)
(utility)
2 door utility pickup w/ au3
4 door utility
A12
B10
B11
Battery
Body control module (under dash, on heater case)
Data
Data link connector (under left side of dash)
Drv dr switch
Fr handle sw
G201 (right side of dash)
G202 (left side of dash)
G404 (left rear body corner)
Grd
Horn relay
Horns system
Hot at all times
Ignition key alarm switch
Instrument cluster
Key in ign
Left door handle switch
Left door jamb switch
Left door lock cylinder switch
Left rear door jamb switch
Liftgate sw
Pickup
Rear window wiper cutout switch & liftglass ajar jamb switch
Right door handle switch
Right door jamb switch
Right door lock cylinder switch
Right rear door jamb switch
Rr dr sw
S305 (body harn, on breakout to right rear door, on pillar)
S427
S501
S601
S900 (right liftgate harness, 5cm before breakout to rear window washer pump motor)
Security indicator
Sp202 (left center of dash)
Splice pack sp201 (below i/p fuse block)
Splice pack sp202 (left center of dash)
Splice pack sp203 (near ashtray)
Splice pack sp204 (center of dash)
Tan
Tbc fuse 10a
Theft
Underhood fuse block
Utility
W/au3
W/o au3
Wiper/ washer system

Pass-Key Wiring Diagram for GMC Jimmy 1999

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List of elements for Pass-Key Wiring Diagram for GMC Jimmy 1999:

2.2l
4.3l
A12
Battery
Body control module (under dash, on heater case)
Data
Data link connector (under left side of dash)
Engine controls system (fuel pump relay)
G202 (left side of dash)
Grd
Hot at all times
Passlock sensor (at ignition switch)
Powertrain control module (on right front of engine compt)
Sensor data
Sensor pwr
Sensor ret
Sp202 (left center of dash)
Splice pack sp201 (below i/p fuse block)
Tbc fuse 10a
Underhood fuse block
Vehicle control module (on right front of engine compt)

BODY COMPUTER

Body Computer Wiring Diagrams for GMC Jimmy 1999

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List of elements for Body Computer Wiring Diagrams for GMC Jimmy 1999:

(103 or 352)
(524 or 1969)
4.3l
A10
A11
A12
All door lock relay ctrl
Ambient light sensor (on top left side of dash)
Ambient light sensor input
Anti-theft system
B10
B11
B12
Body control module (under dash, on heater case)
Btsi trans signal
Class 2 serial data signal
Computer data lines system
Courtesy lamp relay ctrl
Cruise fuse 3 10a
Dimming ctrl input
Dimming signal
Dome lamp ctrl
Dome over ride switch
Door locks system
Driver door jamb switch
Driver door unlock relay ctrl
Drl relay ctrl
Engine controls system
Exterior lights system
Flash-to-pass
Front fog lamp relay ctrl
Front fog lamp switch input
G202 (left side of dash)
Gauges fuse 4 10a
Ground
Headlamp power relay ctrl
Headlamp request
Headlights system
Headlights system (envoy)
Hi beam relay
Hi beam relay hi
High beam input
Horn relay ctrl
Horns system
Hot at all times
Hot in run or start
I/p fuse block (left side of dash)
Ignition (run/start)
Inadvertent power relay ctrl
Instrument cluster
Interior lamps request
Interior lights system
Key in ignition switch
Key in ignition switch (part of ignition switch)
Left turn signal input
Lift glass relay ctrl
Lift glass release switch
Light sensor 5v reference
Park brake switch input
Park brake warning switch (at base of park brake assembly)
Park lamp relay ctrl
Park lamps on input
Pass door jamb switch
Pass door unlock relay input
Passlock data
Passlock sensor power
Passlock sensor return
Pnk
Power (b+)
Power distribution
Rear doors/lift glass switch
Rear lift gate ajar switch
Remote function input
Retained accy pwr relay ctrl
Right turn signal input
Seat belt switch input
Sp202 (left center of dash)
Splice pack sp200
Tan
Tbc fuse 10a
Theft deterrent
Transmission system
Trunk, tailgate system
Trunk, tailgate sytem
Underhood fuse block
Vehicle speed sensor input
Warning sytems

COMPUTER DATA LINES

Computer Data Lines for GMC Jimmy 1999

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List of elements for Computer Data Lines for GMC Jimmy 1999:

(behind right front kick panel) transfer case shift control module (w/ 4wd)
2.2l
4.3l
A12
Body control module (under dash, on heater case)
Body relay block (behind left side of dash, near i/p fuse block)
C11
C474
Cigar ltr fuse 2 15a
Class 2
Data link connector (dlc) (under left side of dash)
Driver information display module (if equipped)
Electronic brake control module (ebcm) (on left front inner fender, on brake pressure modulator valve)
Electronic climate control module (w/ auto a/c)
G117 (right rear of engine)
G202 (left side of dash)
Hot at all times
I/p fuse block (on left end of dash)
Instrument cluster
Left seat memory module (under left front seat) (envoy only)
Nca
Powertrain control module (pcm) (2.2l only) (on right front of engine compartment)
S152
S250 (envoy only) (body harn sir insert harn, between steering column and sdm breakout)
Sp202 (left center of dash)
Splice pack sp201 (left side of dash, below i/p fuse block)
Tan
Transfer case shift control module (w/ 4wd) (behind right front kick panel)
Uart
Underhood fuse block (on top of left front fender)
Vehicle control module (vcm) (4.3l only) (on right front of engine compartment)
Vehicle interface unit (viu) (envoy) (rear quarter of vehicle)

CRUISE CONTROL

Cruise Control Wiring Diagram for GMC Jimmy 1999

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List of elements for Cruise Control Wiring Diagram for GMC Jimmy 1999:

(on left side of firewall)
1999 only
2.2l
4.3l
4.3l only
4wd only
A/t
A12
A13
A14
A15
Abs fuse 22 10a
Anti-lock brakes system
Bare
Body computer system
Body relay block (behind left side of dash)
Brake cutout 1
Brake/clutch signal
C116 (near top right rear of transmission)
Clutch pedal position & cruise control
Cruise control module
Cruise fuse 3 10a
Cruise on/off input
Cruise status
Cut-out switch (clutch pedal support bracket)
Engine control system
Exterior lights system
G104 (left rear of engine compt)
G114 (left rear of engine)
G117 (right rear of engine)
Ground
Hot in run
I/p fuse block (left end of dash)
Ignition
Instrument cluster system
M/t
Multifunction switch
Off
Powertrain control module (right front of engine compt)
R/a
Resume/accel input
S134
S140
S152
Set sw
Set/coast input
Sp200 (body harn, center front of dash)
Stoplamp switch (brake pedal support bracket)
Underhood fuse block (on top of left front fender)
Vehicle control module (right front of engine compt)
Vehicle speed input
Vehicle speed sensor (vss) (on rear of transmission)
Vss
Vss high
Vss low

DEFOGGERS

Defogger Wiring Diagram, Auto A/C for GMC Jimmy 1999

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List of elements for Defogger Wiring Diagram, Auto A/C for GMC Jimmy 1999:

C10
D14
Electronic climate control module (center of dash, below radio)
G201 (right side of dash)
G202 (left side of dash)
G405 (right rear body corner)
Ground
Hot at all times
Hot in run
Hot in run and start
Htd mir fuse 10a
Hvac 1 fuse 21 10a
I/p fuse block (on left end of dash)
Ign 3
Ign e fuse 27 10a
Left outside rear view mirror
On input
Rear defogger relay
Rear pushbutton
Rear window defogger grid
Right outside rear view mirror
Rr defog
Rr defog fuse 30a
S501
S601
Solid state
Splice pack sp203 (center of dash)
Splice pack sp204 (center of dash)
Underhood fuse block (on top of left front fender)

Defogger Wiring Diagram, Manual A/C for GMC Jimmy 1999

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List of elements for Defogger Wiring Diagram, Manual A/C for GMC Jimmy 1999:

C501
G201 (right side of dash)
G202 (left side of dash)
G405 (right rear body corner)
Heater & a/c controller (under center of dash)
Hot at all times
Hot in run
Hot in run and start
Htd mir fuse 10a
Hvac 1 fuse 21 10a
I/p fuse block (on left end of dash)
Ign e fuse 27 10a
Ill.
Interior lights system
Left outside rear view mirror
Nca
On led
Rear defogger relay
Rear pushbutton
Rear window defogger grid
Right outside rear view mirror
Rr defog fuse 30a
S217
S501
S601
Splice pack sp203 (center of dash)
Splice pack sp204 (center of dash)
Timer circuit
Underhood fuse block (on top of left front fender)

ENGINE PERFORMANCE

4.3L

4.3L VIN W, Engine Performance Wiring Diagrams (1 of 4) for GMC Jimmy 1999

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List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (1 of 4) for GMC Jimmy 1999:

(on throttle body assembly) idle air control valve
(top rear of automatic transmission) c116 (m-m)
(top right rear of engine) evaporative emissions canister purge solenoid valve
1-2 shift sol. ctrl
2-3 shift sol. ctrl
2wd
3-2 ctrl sol. ctrl
4wd
Air pmp rly ctrl
Anti-lock brakes system
Cam posit sens rtn
Cam posit sens sig
Camshaft position sensor (in distributor)
Crank posit sens grd
Crank posit sens sig
Crankshaft position sensor (front of engine near crankshaft pulley)
Ect sens input
Egr posit input
Evap can vent valve
G114 (left rear of engine)
G117 (right rear of engine)
Hall effect sensor
Heated oxygen sensor (bank 1 sensor 1) (in left exhaust pipe, front of converter)
Heated oxygen sensor (bank 2 sensor 1) (in right exhaust pipe, front of converter)
Iat temp sens sig
Idle air ctrl (iac) a hi
Idle air ctrl (iac) b lo
Inj no.1 ctrl
Inj no.2 ctrl
Inj no.3 ctrl
Inj no.4 ctrl
Inj no.5 ctrl
Inj no.6 ctrl
Knock sens sig
Knock sensor (top rear of engine)
Left sens hi
Left sens lo
Map sens input
Mass air flow sens
Nca
Pnk
Pnk c
Post-catalyst sens hi
Post-catalyst sens lo
Rear whl speed out
Right sens hi
Right sens lo
S140
S151
Tach out
Tan
Tcc on/off sol. ctrl
Tcc pwm sol ctrl
Throttle posit sens
Trans temp sens sig
Twisted wire pair
Vapor press
Vehicle control module (vcm) (right front of engine compt)
Vehicle speed sensor (rear of transmission)
Vss rtn
Vss signal

4.3L VIN W, Engine Performance Wiring Diagrams (2 of 4) for GMC Jimmy 1999

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List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (2 of 4) for GMC Jimmy 1999:

(in exhaust, behind catalytic converter)
1-2 shift sol.
2-3 shift sol.
3-2 control sol.
Automatic transmission
Automatic transmission fluid pressure manual valve position switch
B10
C10
Central sequential fuel injection
D10
D2 sw
D3 sw
D4 sw
E10
Ecm i fuse 15a
Eng i fuse 10a
Evaporative emission canister vent valve (rear of fuel tank)
Exhaust gas recirculation valve (top front of engine)
F10
Fuel inj. no1
Fuel inj. no2
Fuel inj. no3
Fuel inj. no4
Fuel inj. no5
Fuel inj. no6
Heated oxygen sensor (post-converter)
Hot in run or start
Lo sw
Oxygen fuse 20a
Pnk
Pnk pnk pnk
Pressure control solenoid valve
Red
Rev sw
S150
Tan
Tcc on/off sol.
Tcc pwm sol.
Transmission fluid temperature sensor
Under- hood fuse block

4.3L VIN W, Engine Performance Wiring Diagrams (3 of 4) for GMC Jimmy 1999

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List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (3 of 4) for GMC Jimmy 1999:

(eng harn, 6cm from linear egr valve sol breakout)
(eng harn, 8 cm from
(in air jumper harn, 5 cm from breakout to engine harn)
(not used)
12v in
5v ref
A10
A11
Air fuse 30a
Air fuse block (next to battery)
Air injection reactor pump (lower right front of engine compt)
Air relay
Air sol fuse 10a
Battery fuse 175a
Body relay block (behind left side of dash)
Cruise control system
D (p/u)
Ecm b fuse 20a
Engine coolant temperature sensor (left cylinder head, between 2 rear spark plugs)
Engine oil pressure gauge sensor (near distributor)
Fuel level sensor (w/ fuel pump) (fuel tank)
Fuel pump prime connector
Fuel pump relay
Fuel tank vapor pressure sensor (fuel tank)
Fuse holder (right of radiator)
G101 (right front of engine compt)
G114 (left rear of engine)
G416 (left rear crossmember)
G416 (left rear frame rail)
Generator breakout) s102
Gnd
Hot at all times
Hot in run and start
Ign e fuse 10a
Input oil pres
Input speedo
Instrument cluster
Intake air temperature sensor (in fresh air intake duct)
M (utility)
Maf sig
Manifold absolute pressure sensor (top center of engine)
Mass air flow sensor (maf) (on air intake assy)
Mil input
Pick-up
Pnk
Pnk pnk pnk
Red
Rtn
S100 (eng harn, 30cm from vcm breakout)
S101
S105
S152
Splice pack 422/423 (left side of dash)
Tach input
Tan a
Throttle position sensor (on throttle body assembly)
Under- hood fuse block
Underhood fuse block
Utility
Vapor

4.3L VIN W, Engine Performance Wiring Diagrams (4 of 4) for GMC Jimmy 1999

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List of elements for 4.3L VIN W, Engine Performance Wiring Diagrams (4 of 4) for GMC Jimmy 1999:

(center of dash) splice pack sp200
(not used)
(under left side of dash) data link connector
2wd
4wd
4wd f whl lock in
4wd fuse 15 10a
4wd low ind sig
5v ref. voltage
5v return
A/c comp relay ctrl
A/c request (hi)
A/c request (lo)
A/c system
A12
Abs fuse 22 10a
Anti-lock brakes system
Body control module (under dash, on heater case)
Brake switch input
Check eng lp out
Clstr fuse 11 10a
Cpp sw sig in
Cruise control system
Cruise engaged sig
Distributor (top rear of engine)
Egr valve hi
Egr valve lo
Est output sig
Evap cann sol ctrl
Fuel level sig in
Fuel pump rly ctrl
Fused ign
Fused ign (run)
Fused ign (run/start)
G114 (left rear of engine)
Gen ctrl
Ground
High voltage coil wire
Hot in off, run or start
Hot in run
I/p fuse block
Ign timing sig.
Ignition coil (right side of engine)
Ignition control module (top right side of engine)
Ignition feed
Instrument cluster system
Nca
P/n
Park neutral position switch (left side of transmission)
Pnk
Pnk a
Power b(+)
Press ctrl sol lo
Press ctrl sol. hi
Prndl a sig in
Prndl b sig in
Prndl c sig in
Prndl p sig in
Red
S106
S113
S138 (body harn, near wiper breakout)
S152
Sensor grd
Serial data class ii
Serial data sig
Sound system
Spark plugs
Splice pack 201 (left side of dash)
Splice pack sp200 (center of dash)
Starting/ charging system
Stoplamp switch (on brake pedal support bracket)
Tach. sig.
Trans press sig-bit 1
Trans press sig-bit 2
Trans press sig-bit 3
Transmissions system
Vcm grd
Vehicle control module (vcm) (right front of engine compt)
Vss sig

EXTERIOR LIGHTS

Back-up Lamps Wiring Diagram for GMC Jimmy 1999

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List of elements for Back-up Lamps Wiring Diagram for GMC Jimmy 1999:

(a/t)
(body harn, near breakout to rear doors) s309
(m/t) b
(not used)
B/u lp fuse 25a
B11 c2
Back-up lamp switch (m/t) (2.2l - right side of transmission) (4.3l - left side of transmission)
C1 (m/t)
C1 f
C3 a4
C3 b3
C8 c2
F3 c1
G404 (left rear body corner)
Hot in run or start
Left backup lamp
Mirrors system (automatic day/ night mirror)
Pnk c b
Right backup lamp
S419
S420
S427
Trailer wiring provision
Transmission range switch (left side of transmission)
Trl b/u fuse 10a
Underhood fuse block (on top of left front fender)
Veh b/u fuse 15a

Exterior Lamps Wiring Diagram for GMC Jimmy 1999

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List of elements for Exterior Lamps Wiring Diagram for GMC Jimmy 1999:

(510 ohms)
(behind right side of dash) turn signal lamp flasher
(body harn, near breakout to chmsl lamp) s408
(center of dash) sp204
(on rear crossmember) sp423
A5 c3
A6 c3
B1 haz pwr a1 turn pwr c1 flshr out
B12 c1
B2 gnd
Body bussed electrical center (behind left side of dash)
Body control module (under dash, on heater case)
C1 a4
C1 a8
C1 c1
C1 d11
C1 e2
C1 f11
C10 c1
C2 c1
C3 e4
D1 c3
D10 c1
E10 c1
E9 c1
F10 c1
F12 c1
Fr prk fuse 10a
G108 (left radiator support)
G109 (right radiator support)
G201 (right side of dash)
G404 (left rear body corner)
G416 (left rear frame rail)
Haz lp fuse 20a
Hazard
Head
Headlamp switch
High mount stop lamp
High mount stop lamp resistor
Hot at all times
Hot in run or start
I/p fuse block (left side of dash)
Instrument cluster
Interior lights system
Left
Left front park/ turn lamp
Left front side marker lamp
Left rear license plate lamp
Left turn in
Left turn ind
Lr prk fuse 10a
Lt trn fuse 10a
Lt turn fuse 10a
Nca
Normal
Off
Park
Park lamp relay
Park lp fuse 20a
Park rly ctrl
Park/ turn/ stop lamps
Pnk
Prk lp fuse 10a
Right
Right front park/ turn lamp
Right front side marker lamp
Right rear lamp assembly
Right rear license plate lamp
Right turn in
Right turn ind
Rr prk fuse 10a
Rt trn fuse 10a
S404
S427
Sp100 (at left radiator support)
Sp101 (at right radiator support)
Sp423 (on rear crossmember)
Stop lp fuse 20a
Stoplamp switch (on brake pedal support bracket)
Tr chmsl fuse 10a
Trailer wiring provisions
Trl prk fuse 10a
Trl trn 10a
Trr trn 10a
Turn fuse 20a
Turn signal switch (part of multi- function switch)
Underhood fuse block (top of left front fender)
Veh chmsl fuse 10a

GROUND DISTRIBUTION

Ground Distribution Wiring Diagram (1 of 3) for GMC Jimmy 1999

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List of elements for Ground Distribution Wiring Diagram (1 of 3) for GMC Jimmy 1999:

(2.2l)
(4.3l)
(4.3l) g119 (right front of eng block)
(4.3l)g119 (right front of eng block)
(engine harn, 7-15 cm from g117 breakout)
(engine harn, in breakout to a/c comp and cutoff switch)
(envoy)
(ex envoy)
(not used)
(not used) e
(pcm)
(vcm)
(w/o trip) (w/ trip)
2.2l
2.2l: eng harn, 25 cm from pcm breakout)
4.3l
A/c compressor clutch
A/c compressor clutch diode
A/c compressor pressure cycling switch
A/t
Air injection reactor (air) pump
Ambient temperature sensor (w/ overhead console)
Bare
Battery
Body relay block
Brake pressure warning switch
Cruise control module
D12
Data link connector (dlc)
Daytime running lamps (drl) relay
Driver information display module (utility)
E16
Electronic brake control module (ebcm)
Envoy
Envoy/ bravada
Ex envoy/ bravada
Fuel pump relay
G101 (right front corner of engine compt)
G108 (left radiator support)
G109 (right radiator support)
G115 (rear of engine)
G117 (right rear of engine)
G118 (right front frame rail)
G120 (2.2l) (right side of engine block, under generator)
G120 (right side of engine block, under generator)
Headlamp power relay (ex envoy)
Heated oxygen sensor (ho2s) (bank 1 sensor 1)
Heated oxygen sensor (ho2s) (bank 1 sensor 2)
Heated oxygen sensor (ho2s) (bank 1 sensor 3)
Heated oxygen sensor (ho2s) (bank 2 sensor 1)
High mount stop lamp relay (pickup)
Ignition control module
Instrument cluster
Left fog lamp
Left front park/ turn lamp
Left headlamp high intensity discharge ballast
Left high beam headlamp
Left horn
Low beam relay (envoy)
Mass airflow (maf) sensor
Nca
Park/ neutral position (pnp) switch
Powertrain control module (pcm)
Rear window washer pump motor
Remote control door lock receiver
Right fog lamp
Right front park/ turn lamp
Right headlamp high intensity discharge ballast
Right horn
S106 (4.3l: eng harn, 7 cm from ho2s breakout
S140 (engine harn, near end of vss connector)
S151 (heated oxygen sensor harn, 10 cm from right front heated oxygen sensor)
S152
Sp100 (left radiator support)
Sp101 (right radiator support)
Starter relay
Transfer case shift control module
Underhood fuse block
Vehicle control module (vcm)/ powertrain control module (pcm)
Vehicle speed sensor (vss) shield
Vehicle speed sensor shield
Vss connector)
W/ air injection reactor system only
W/ rke
Windshield washer pump motor

Ground Distribution Wiring Diagram (2 of 3) for GMC Jimmy 1999

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List of elements for Ground Distribution Wiring Diagram (2 of 3) for GMC Jimmy 1999:

(4 dr utility w/ liftgate)
(auto 4wd extention harn, 10 cm from vss breakout)
(auto a/c)
(bravada) e16
(envoy)
(ex 4 dr utility w/ liftgate)
(ex bravada)
(ex envoy)
(fleetside)
(man a/c)
(not used)
(sportside)
(sportside) (fleetside)
(w/ a/c)
(w/o a/c)
4 door utility w/ liftgate
4 door utility, w/ floor shift a/t
4wd
87a
A16
Air temperature valve sensor and motor
Automatic transmission controller
Automatic transmission indicator lamp
Automatic transmission preference switch (jimmy only)
B a
B12
Bare
Blower motor
Blower motor relay (man a/c)
Body control module
Body relay block
Brake transmission shift interlock (btsi) solenoid
Bravada
C10
Cigar lighter
Courtesy lamp relay
Data link connector (dlc)
Door lock relay
Door unlock relay
Driver door unlock relay
E13
Electronic climate control module
Envoy
Ex 4 door utility w/ liftgate
Ex base pickup, or envoy
Ex bravada
Ex envoy
Fog lamp switch
Fuel pump and sender
G104 (left rear of engine compartment)
G201 (right side of dash)
G202 (left side of dash)
G416 (on left rear frame rail)
G417 (on right rear frame rail)
Headlamp ground relay
Headlamp switch
Heater controler heater and a/c conroller
I/p ashtray lamp
I/p compartment lamp
Ignition key alarm switch
Instrument cluster
K l
Left backup lamp
Left door handle switch
Left front door jamb switch
Left rear license plate lamp
Left rear park and turn signal lamp
Left rear side marker lamp
Left seat belt switch
Motor relay)
Nca
Park lock solenoid
Park position switch
Pickup
Radio
Rear wiper/ washer switch and endgate/ liftgate window release switch
Remote compact disk player
Right backup lamp
Right front door jamb switch
Right rear license plate lamp
Right rear park and turn signal lamp
Right rear side marker lamp
S134
S335
Sp202 (left center of dash)
Sp203 (near ashtray)
Sp401 (rear of right frame rail)
Sp402 (rear of left frame rail)
Sp423 (top of rear crossmember)
Steering wheel controls
Trailer wiring provision
Transfer case select switch
Transfer case speed sensor front shield
Utility
Utility w/ auto a/c
Utility w/ man a/c
Utility w/ man a/c, ex envoy
Utility w/ radio controls
Utility w/o radio controls
Vehicle interface unit
Vehicle speed sensor (vss) shield
W/ column shift
W/ floor shift
Windshield wiper motor

Ground Distribution Wiring Diagram (3 of 3) for GMC Jimmy 1999

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List of elements for Ground Distribution Wiring Diagram (3 of 3) for GMC Jimmy 1999:

(envoy)
(left door harn, near door speaker)
(left power seat harn, under left front seat)
(others)
(right power seat harn, under right front seat)
(utility) (pickup)
(w/ liftglass) (w/ endgate)
(w/ mem) (w/o mem)
4 door only
A b
All except base pickup
Amplifier
C10
D12
D13
Dome and high mount stop lamp
Endgate or liftgate release actuator
Envoy
Floor console auxiliary power outlet
G201 (right side of dash)
G202 (left side of dash)
G404 (left rear body corner)
G405 (right rear body corner)
High mount stop lamp
High mount stop lamp resistor
Inside air temperature sensor
Inside rear view mirror
Left auxiliary power outlet
Left backup lamp
Left door handle switch
Left door lock and side window switch
Left door lock cylinder switch
Left lumbar switch
Left outside rear view mirror
Left power seat adjuster switch
Left rear door jamb switch
Left rear park and turn signal lamp
Left seat belt switch
Left seat heater module
Left seat memory module
Left sunshade mirror lamp
Left sunshade mirror lamp breakout)
Liftgate ajar jamb switch (liftgate)
Load leveling air direction valve
Load leveling height sensor
Load leveling inflator switch
Load leveling pump
Load leveling timer relay
Nca
Others
Outside rear view folding mirror switch
Outside rear view mirror switch
Overhead console
Pickup
Rear auxiliary power outlet
Rear seat audio control
Rear window defogger grid
Rear window wiper cutout and liftglass ajar jamb switch
Rear window wiper motor (liftgate)
Rear window wiper motor controller (endgate)
Right auxiliary power outlet
Right backup lamp
Right door handle switch
Right door lock and side window
Right door lock cylinder switch
Right lumbar switch
Right outside rear view mirror
Right power seat adjuster switch
Right rear door jamb switch
Right rear park and turn signal lamp
Right seat belt switch
Right seat heater module
Right sunshade mirror lamp
S269
S302
S313
S320
S350 (console harn, 7 cm from 40-pin inline connector)
S419 (left tail lamp jpr harn, 8 cm from grommet)
S420 (right tail lamp jpr harn, 8 cm from grommet)
S427 (body harn, near left rear taillamp breakout)
S471 (on load leveling harn, in rear quarter)
S501
S601 (left door harn, near door speaker)
Side window lockout switch
Sp204 (center of dash)
Sunroof module
Switch
Tow/ haul switch
Transfer case shift control module (np1)
Transfer case shift control module (np8)
Turn flasher lamp flasher
Utility
W/ auto day/night mirror
W/ heated folding power mirrors
W/ heated seats
W/ lumbar
W/ mirror lamps
W/ power door locks
W/o auto day/night mirror
W/o mirror lamps

HEADLIGHTS

Headlight Wiring Diagram for GMC Jimmy 1999

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List of elements for Headlight Wiring Diagram for GMC Jimmy 1999:

(2.2l)
(4.3l)
(left radiator support) g108
(right radiator support) g109
(right side of dash) g201
175a
5v ref
87a
A11
Ambient light sensor (top left side of dash)
Audo
B10
B12
Battery fuse
Body control module (under dash, on heater case)
Body relay block (left side of dash)
C1 b12
C11
Daytime running lamps relay
Drl relay ctrl
E10
E11
E12
E13
Exterior lights system
Fog lamp relay
Fog lamp switch
Fog lp fuse 15a
Fog lp ind
Fog rly ctrl
Fog sw in
Ftp
Ftp in
G119 (right front of engine block)
G120 (right side of engine block under generator)
G202 (left side of dash)
Hdlp
Hdlp sw fuse 7 10a
Headlamp ctrl
Headlamp ground relay
Headlamp power relay
Headlamp switch
High
High beam in
High beam/ flash-to- pass switch
Hot at all times
I/p fuse block
Illum
Interior lights system
Left fog lamp
Left high beam headlamp
Left low beam headlamp
Light sensor
Low
Lt hdlp fuse 15a
Nca
Park brake sw
Park brake warning switch (base of park brake assembly)
Park lamp relay
Park lp fuse 20a
Park rly ctrl
Pklp
Red
Right fog lamp
Right high beam headlamp
Right low beam headlamp
Rt hdlp fuse 15a
Sp100 (left radiator support)
Sp101 (right radiator support)
Sp202 (left center of dash)
Sp203 (near ashtray)
Tbc fuse 10a
Underhood fuse block
Underhood fuse block (top of left front fender)

HORN

Horn Wiring Diagram for GMC Jimmy 1999

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List of elements for Horn Wiring Diagram for GMC Jimmy 1999:

Battery fuse 175a
Body control module (under dash, on heater case)
Fuse holder (engine compt, right of radiator)
G108 (engine compt, left of radiator support)
G109 (engine compt, right inside of radiator support)
Horn fuse 15a
Horn relay
Horn switch
Hot at all times
Left horn (left fender wall)
Red
Right horn (right fender wall)
Splice pack sp100 (forward lamp harn, left rear of radiator support)
Splice pack sp101 (forward lamp harn, right inside of radiator support)
Steering column
Underhood fuse block (top of left front fender)
With anti-theft

INSTRUMENT CLUSTER

Instrument Cluster Wiring Diagram (1 of 2) for GMC Jimmy 1999

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List of elements for Instrument Cluster Wiring Diagram (1 of 2) for GMC Jimmy 1999:

(inside endgate) rear window wiper cutout & liftglass ajar jamb switch
(left side of dash)
(w/ trip computer)
(w/o trip computer)
A10
A11
A12
Air bag
Air temp
Ambient air temperature sensor (front center of vehicle, near hood latch)
Anti-lock ind
B10
B11
B12
Battery fuel
Block)
Body control module (under dash, on heater case)
Body relay block (behind left side od dash, near i/p fuse
Body relay block (behind left side of dash, near i/p fuse block)
Brake ind
Check gauges ind
Clr
Clstr fuse 11 10a
Compass remote sensor (in headliner above left front seat)
Cruise fuse 3 10a
Ctsy lamp fuse 8 10a
Electronic brake control module (on left front inner fender, on brake pressure module valve)
Engine coolant temperature gauge
Exterior lights system
Fuel gauge
Fuel pump switch & engine oil pressure gauge sensor (2.2l: right side of engine) (4.3l: top rear of engine, near distributor)
Fused batt
Fused ign
G117 (right rear of engine)
G201 (right side of dash)
G202
G404 (left rear body corner)
Gauges fuse 4 10a
Ground
High beam ind
Hot at all times
Hot in accy, run or rap
Hot in off, run or start
Hot in run
Hot in run or start
Hot w/ int dimming on
I/p fuse block (left end of dash)
Ic logic
Ign 1
Illum fuse 12 10a
Illumination
Instrument cluster
Int lite dim
Interior lights system
Left turn
Low fuel
Mil (service engine soon ind)
Oil pressure gauge
Over speed alarm ind
Overhead console (utility only)
Park position switch (part of automatic transmission controller)
Parklamps
Pnk
Prndl
Rdo batt fuse 19 15a
Rdo fuse 24 10a
Red
Right turn
S152
S205
S240
S310
S427
S900
Seat belt ind
Security ind
Serial data
Service 4wd ind
Service body system ind
Spare
Speedometer
Splice pack sp201 (left side of dash)
Splice pack sp203 (near ashtray)
Tachometer
Tail gate alarm ind
Transfer case shift control module (behind right front kick panel)
Trip/ odo
Underhood fuse block (on top of left front fender)
Upshift ind
Volt reg
Volt- meter
Vss in

Instrument Cluster Wiring Diagram (2 of 2) for GMC Jimmy 1999

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List of elements for Instrument Cluster Wiring Diagram (2 of 2) for GMC Jimmy 1999:

(eng harn, 8 cm from generator breakout)
(not used)
(pickup) a
(utility) j
2.2l
2wd
4.3l
4wd
Body control module
C118 (m-m) (near top rear of transmission)
Ect sens grd
Ect sens sig in
Ect sensor in
Ect sensr grd
Engine coolant temperature sensor (front of engine, in coolant piping)
Engine coolant temperature sensor (left cylinder head, between two rear spark plugs) b
Fuel level sens grd
Fuel level sensor w/ fuel pump (top of fuel tank)
Fuel level sig in
Fuel lvl in
G115 (rear of engine)
G117 (right rear of engine)
Mil ind
Mil ind ctrl
Park/neutral position switch (left side of transmission)
Powertrain control module (2.2l only) (right front of engine compt)
Prndl a
Prndl a sig
Prndl b
Prndl b sig
Prndl c
Prndl c sig
Prndl p
Prndl p sig
Radio
S100 (engine harn, 30 cm from vcm breakout)
S102
S152
Serial data
Splice pack sp200 (center of dash)
Splice pack sp422 (near transmission
Splice pack sp422/423 (left side of dash)
Tach out
Transmission range switch (left side of transmission)
Vehicle control module (4.3l only) (right front of engine compt)
Vehicle speed sensor (rear of transmission)
Vehicle speed sensor (rear transmission)
Vss high
Vss low
Vss out
Vss sig out

INTERIOR LIGHTS

Courtesy Lamps Wiring Diagram (1 of 2) for GMC Jimmy 1999

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List of elements for Courtesy Lamps Wiring Diagram (1 of 2) for GMC Jimmy 1999:

(w/ ec mirror) (w/o ec mirror)
(w/o ec mirror) (w/ ec mirror)
All others
Anti-theft system
B11
B12
Base
Body bussed electrical center (bbec)
Body control module (behind dash, mounted to heater)
Cargo lamp
Courtesy lamp relay
Ctsy lamp fuse 8 10a
Dome lamp
Endgate/ lftgate jamb switch
Envoy
Except envoy
From outside rearview mirror lamp (diagram 2 of 2)
From overhead console (diagram 2 of 2)
G201 (right side of dash)
G202 (left side of dash)
G404 (right rear body corner)
Hot at all times
I/p compartment lamp
I/p fuse block
Inadvertent power lamp relay
Inside rearview mirror lamp
Jamb sw input
Jamb sw input c3
Left console courtesy lamp
Left front door jamb switch
Left rear door jamb switch (4 door)
Nca
Relay control
Relay input c2
Right console courtesy lamp
Right front door jamb switch
Right rear door jamb switch (4 door)
S286
S300 (dome lamp harn, 6 cm into dome and chmsl breakout)
S302
S305 (body harn, in breakout to right rear door)
S427
Sp202
Sp203
Tan
To overhead console (diagram 2 of 2)
To splice s332 (diagram 2 of 2)
Underhood lamp
W/ inside rearview mirror only
W/ overhead console only
W/ sunshade and inside rearview mirror
W/o overhead console only

Courtesy Lamps Wiring Diagram (2 of 2) for GMC Jimmy 1999

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List of elements for Courtesy Lamps Wiring Diagram (2 of 2) for GMC Jimmy 1999:

(dome lamp harn, 5 cm from sunshade mirror lamp left) s310
(w/ ec mirror) (w/o ec mirror)
(w/o ec mirror) (w/ ec mirror)
Dome lamp
Dome light
Driver information display module
From body relay block (diagram 1 0f 2)
G202 (left side of dash)
Inside rearview mirror or driver information display module
Inside rearview mirror or drver information display
Left sunshade mirror lamp
Overhead console w/ sunroof
Overhead console w/o sunroof
Right sunshade mirror lamp
S300 (dome lamp harn, 6 cm into dome and chmsl breakout)
S302
S310
S332 (dome lamp harn, 23 cm from sunshade mirror lamp breakout)
S332 (dome lamp harn, 4 cm from dome lamp breakout)
S332 (dome lamp harn, 6 cm from sunroof breakout)
To body relay block (diagram 1 0f 2)
To splice s300 (diagram 1 of 2)
W/ full trip

Instrument Illumination Wiring Diagram for GMC Jimmy 1999

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List of elements for Instrument Illumination Wiring Diagram for GMC Jimmy 1999:

(4) bulbs
(6) bulbs
(comp/time)
(left front door harn, 8 cm from radio speaker breakout) s502
(right side of dash) g201
(trip)
A b
Ash tray lamp
Automatic transmission indicator lamp
Automatic transmission preference switch
B a
Body bussed electrical center (bbec) (park lamp relay)
Body control module (under dash, on heater case)
Body relay block (behind left side of dash)
C10
Defog switch
Dim
Dim pot
Driver information display module
Envoy
Except envoy
Exterior lamps system
Fog lamp switch
G201 (right side of dash)
G202 (left side of dash)
Head
Headlamp switch
Heater controller or heater & a/c controller or electronic climate control
Hot at all times
I/p fuse block
Illum fuse 12 10a
Instrument cluster
Left door lock & side window switch
Light switch
Off
Outside rearview mirror switch
Park
Pickup
Prk lp fuse 10a
Prk lp fuse 20a
Prk lps c2
Radio
Rear seat audio control
Rear wiper/ washer & endgate/ liftglass window release switch
Remote audio player
Right door lock & side window switch
S205 (dash harn, 8 cm from am/fm radio breakout)
S283 (dash harn, 13 cm from tbc module breakout)
S335
S336
S350
S501
S601
Sp202 (left center of dash)
Sp203 (near ashtray)
Sp204 (center of dash)
Steering wheel controls
Str whl ill fuse 5 2a
Transfer case select switch
Underhood fuse block
Utility
W/ auto a/c
W/ electronic climate control
W/o auto a/c
W/o electronic climate control a b
Window lockout switch (4 door)

MEMORY SYSTEMS

Memory Seat Wiring Diagram for GMC Jimmy 1999

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List of elements for Memory Seat Wiring Diagram for GMC Jimmy 1999:

(pwr seat harn, near breakout to memory module) s315
Battery
Body relay box (behind left side of dash)
Data link connector (under left side of dash)
Drive rec
Front
Frt vert
G404 (left rear body corner)
Ground
Hall sensor
Horiz back
Horiz fwd
Horiz pos
Hot at all times
Lateral
Left power seat adjuster switch
Left seat front height motor
Left seat front height transducer
Left seat lateral motor
Left seat lateral transducer
Left seat rear height motor
Left seat rear height transducer
Left seat recliner motor
Mem 1
Mem 2
Mem set
Pwr seats circuit breaker 25a
Rear
Rear vert
Recline
Recline back
Recline bk
Recline fwd
Red
Ref voltage
S304
S313
S316 (pwr seat harn, near breakout to memory module)
Seat memory module (under driver's seat)
Sens gnd
Serial data
Splice pack sp201 (left side of dash below i/p fuse block)
Tan

POWER DISTRIBUTION

Power Distribution Wiring Diagram (1 of 5) for GMC Jimmy 1999

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List of elements for Power Distribution Wiring Diagram (1 of 5) for GMC Jimmy 1999:

(2.2l)
(4.3l)
(air jumper harn, near right front corner of engine compartment)
Acc
Air fuse 30a
Air injection reactor fuse block
Air injection reactor pump
Air relay
Air sol fuse 10a
B10
B11
Battery
Battery fuse 175a
Body control module
C10
California only
Camshaft position (cmp) sensor (4.3l)
Central sequential fuel injection (4.3l)
Crankshaft position (ckp) sensor (4.3l)
D10
E10
Ecm 1 fuse 15a
Eng 1 fuse 10a
Evaporative emissions (evap) canister purge solenoid valve
Evaporative emissions (evap) canister vent solenoid valve
F10
From ecm 1 a fuse diagram 1 of 5)
Fuel injectors
Fusible link (10 ga-red)
Gauges fuse 4 10a
Generator
Hazard switch
Heated oxygen sensor (ho2s) (bank 1 sensor 1)
Heated oxygen sensor (ho2s) (bank 1 sensor 3) (4.3l)
Heated oxygen sensor (ho2s) (bank 2 sensor 1) (4.3l)
I/p fuse block
Ign a fuse 40a
Ignition coil (4.3l)
Ignition control module (icm)
Ignition switch
Instrument cluster
Lock
Mass airflow (maf) sensor (4.3l)
Off
Oxygen fuse 20a
Pickup
Pnk
Powertrain control module (pcm) (2.2l)
Red
Run
S105
S150 (heated oxygen sensor harn, pnk near heated oxygen sensor breakout)
Sir fuse 16 15a
Start
Starter
Starter relay
To b/u lp fuse (diagram 2 of 5)
To eng 1 fuse (diagram 1 of 5)
To ign c fuse (diagram 2 of 5)
Turn fuse 10 20a
Underhood fuse block
Vehicle control module (vcm) (4.3l)

Power Distribution Wiring Diagram (2 of 5) for GMC Jimmy 1999

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List of elements for Power Distribution Wiring Diagram (2 of 5) for GMC Jimmy 1999:

(body harn, near rear doors breakout) s309
(load leveling harn, in rear quarter)
(not used)
(w/ automatic day/night mirror)
2 door
4 door
A/c compressor clutch relay
A/t
Abs fuse 60a
Acc
Air injection reactor fuse block (calif)
Air relay
B/u lp fuse 25a
B11
B12
Back-up lamp switch
Blower motor
Blower motor relay
Body relay block
Brake transmission shift interlock (btsi) solenoid (w/ floor shift a/t)
Btsi fuse 10a
C12
D12
Daytime running lamps (drl) relay (envoy)
Electronic brake control module (ebcm)
From b/u lp fuse diagram 2 of 5)
From ign a fuse diagram 1 of 5)
From oxygen b fuse diagram 1 of 5)
Haz lp fuse 20a
Hazard switch
Headlamp grounding relay (ex envoy)
Headlamp switch
Hvac fuse 30a (utility)
Ign b fuse 50a
Ign c fuse 20a
Ign e fuse 10a
Ignition switch
Inside rear view mirror (utility)
Left backup lamp (pickup)
Left backup lamp (utility)
Load leveling height sensor (envoy)
Load leveling pump (envoy)
Lock
M/t
Off
Park lamp relay
Park lp fuse 20a
Park/ neutral position (pnp) switch
Pnk
Rear defogger relay (utility)
Red
Right backup lamp (pickup)
Right backup lamp (utility)
Run
S473 pnk
Sp204 (center front of dash)
Sp400 (center of rear crossmember) (pickup)
Start
Stud 2 fuse 30a
Tcc/ stop lamp switch
To clstr fuse (diagram 4 of 5)
To crank fuse (diagram 4 of 5)
To ign e fuse (diagram 2 of 5)
To rap maxi fuse (diagram 3 of 5)
To rap relay (diagram 5 of 5)
To s204 (diagram 5 of 5)
Trailer wiring provisions
Trailer wiring provisions (utility w/ m/t)
Transfer case shift control module (np1)
Trl b/u fuse 10a
Underhood fuse block
Veh b/u fuse 15a
W/ climate control
W/o climate control

Power Distribution Wiring Diagram (3 of 5) for GMC Jimmy 1999

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List of elements for Power Distribution Wiring Diagram (3 of 5) for GMC Jimmy 1999:

(auxiliary power outlet harn, near left and right aux power outlets)
(body harn, near rear doors breakout)
(bravada) f10
(dome lamp harn, 5 cm from left sunshade mirror lamp breakout) s310
(envoy)
(ex bravada)
(ex envoy)
(i/p harn, 4 cm from bcm breakout)
(i/p harn, near courtesy lamp breakout) s208
(not used)
(pickup)
(utility)
2 door
2.2l
4 door
4.3l
A10
Ampf fuse 20 25a
Amplifier (premium sound)
Automatic a/c
Aux pwr fuse 13 20a
B c
Body relay block
C12
Cargo lamp (utility)
Cigar lighter
Cigar ltr fuse 2 15a
Ctsy lp fuse 8 10a
Data link connector (dlc)
Daytime running lamp (drl) relay (envoy)
Daytime running lamp (drl) relay (ex envoy)
Dome lamp (utility) dome lamp and center mounted stop lamp (pickup)
Dome lamp (w/ sunroof)
Dome lamp (w/o sunroof)
Door lock relay
Door unlock relay
Driver information display module
Driver's door unlock relay
Drl fuse 15a
Ecm b fuse 20a
Electronic climate control module
Floor console auxiliary power outlet (envoy)
Fog lamp relay
Fog lp fuse 15a
From abs i fuse (diagram 2 of 5)
From int bat fuse (diagram 3 of 5)
From s223 j diagram 3 of 5)
Fuel pump relay
Full trip (utility)
G201 (right side of dash)
Hdlp sw fuse 7 10a
Headlamp switch
Hi beam fuse 20a
I/p fuse block
Inadvertent power lamp relay
Instrument cluster
Int bat fuse 50a 60a
Left auxiliary power outlet
Left front console courtesy lamp
Left headlamp ballast (hid)
Left power seat adjuster switch
Low beam relay (envoy)
Lt low fuse 20a
Manual a/c
Nca
Power seats circuit breaker 20a (utility)
Powertrain control module (pcm)
Pwr lks fuse 14 15a
Radio
Rap fuse 50a
Rdo bat fuse 19 15a
Rear auxiliary power outlet (envoy)
Red
Remote audio player (bravada)
Right auxiliary power outlet
Right front console courtesy lamp
Right headlamp ballast (hid)
Right power seat adjuster switch
Rt low fuse 20a
S223
S268
S276
S304
Seat memory module
Sp203 (near ashtray)
To hi beam fuse (diagram 3 of 5)
To high beam relay (diagram 5 of 5)
To pwr lcks fuse 14 (diagram 3 of 5)
To rap relay (diagram 5 of 5)
To tbc fuse (diagram 4 of 5)
Transfer case shift control module (w/ electric shift 4wd)
Trip computer
Under- hood fuse block
Underhood fuse block
Universal garage door opener
Utility
Vehicle control module (vcm)
Vehicle interface unit (envoy)
W/ memory
W/o full trip
W/o memory

Power Distribution Wiring Diagram (4 of 5) for GMC Jimmy 1999

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List of elements for Power Distribution Wiring Diagram (4 of 5) for GMC Jimmy 1999:

(body harn, 13 cm from blower motor breakout) pnk
(ex envoy) (envoy)
(load leveling harn, in rear quarter)
(w/ np1)
(w/o np1)
2.2l
4.3l
A/c compressor clutch relay
A/c fuse 10a
A10
Atc fuse 20a
Automatic transmission
Body control module
Body relay block
Brake transmission shift interlock (btsi) solenoid (w/ floor shift a/t)
C175
Clstr fuse 11 10a
Clutch pedal position (cpp) switch (m/t)
Crank fuse 10a
Cruise control module
D11
D15
D16
D19
Daytime running lamps (drl) relay (ex envoy)
Dome and high mount stop lamp
E10
E11
E12
Estc 4wd
Ex bravada
F10
F11
F12
From atc m fuse (diagram 4 of 5)
From hi beam fuse (diagram 3 of 5)
From ignition switch pin d1 (diagram 2 of 5)
Hazard switch (utility)
Headlamp power relay (ex envoy)
High mount stop lamp
High mount stop lamp relay (pickup)
High mount stop lamp resistor
Horn (a note)
Horn (f note)
Horn fuse 15a
Horn relay
Horn switch
Htd mir fuse 10a
Htd seat fuse 20a (utility)
I/p fuse block
In rear quarter)
Instrument cluster
Ldlev fuse 25a (envoy)
Left door lock/ window switch
Left low beam headlamp
Left lumbar switch
Left outside rearview mirror
Left seat heater module
Lift- glass relay
Liftgate or endgate lock cylinder switch
Load leveling pump
Load leveling timer relay
Lt hdlp fuse 15a (ex envoy)
Mir/lks fuse 5a 10a
Multi- function switch (flash to pass)
Nca
Outside rear view mirror switch
Park/ neutral position (pnp) switch (a/t)
Pickup
Pnk
Pnk (eng harn, 20 cm from a/c pressure sensor breakout)
Powertrain control module (pcm)
Rear defogger relay (utility)
Rear window defogger grid (utility)
Rear window wiper motor
Remote control door lock receiver
Right door lock/ window switch
Right high beam headlamp
Right low beam headlamp
Right lumbar switch
Right outside rearview mirror
Right seat heater module
Rr defog fuse 30a
Rr w/w fuse 15a (utility)
Rt hdlp fuse 15a (ex envoy)
S113
S129
S314
S321
S405 (body harn, 10 cm before hmsl breakout)
S474
Stop lp fuse 20a
Tbc fuse 10a
Tcc/ stop lamp switch
To a/c fuse (diagram 4 of 5)
Trailer wiring provisions
Transfer case encoder motor
Transfer case shift control module
Trchmsl fuse 10a
Under- hood fuse block
Utility
Vechmsl fuse 10a
Vehicle control module (vcm)
W/ rke
W/np1
W/o np1

Power Distribution Wiring Diagram (5 of 5) for GMC Jimmy 1999

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List of elements for Power Distribution Wiring Diagram (5 of 5) for GMC Jimmy 1999:

(body harn, 7 cm from g404 breakout)
(bravada) c1
(envoy)
(ex bravada)
(ex envoy)
(i/p harn, near bcm breakout)
(ip harn, in heater controller breakout) s217
(not used)
(w/ trip)
(w/np1)
(w/o np1)
(w/o trip)
4.3l 2wd
4wd fuse 15 10a
87a
A11
A5 c4
Abs fuse 22 10a
Air temperature valve sensor and motor
Body control module
Body relay block
C12
C474
Cruise control module
Cruise fuse 3 10a
Driver information display module
E10
Electronic brake control module (ebcm)
Electronic climate control module
Envoy
Ex envoy
Except base pickup
From 4wd fuse (diagram 5 of 5)
From hi beam fuse (diagram 3 of 5)
From ignition switch pin c6 (diagram 2 of 5)
From ignition switch pin d6 (diagram 2 of 5)
From power seats circuit breaker (diagram 3 of 5)
Front axle switch
Front drive axle clutch solenoid
Frt wpr fuse 17 25a
Heater and a/c controller
Heater and a/c controller or heater controller (w/o electronic climate control)
Heater controller (w/ c42)
High beam relay
Hvac 1 fuse 21 10a
Hvac fuse 9 20a
Hvac solenoid assembly
I/p fuse block
Inside air temperature sensor
Inside rear view mirror (w/ automatic day/night mirror)
Instrument cluster
Left door lock and window switch
Left high beam headlamp
Left lumbar switch
Lt hi fuse 10a
Multi- function switch
Multifunction switch
Nca
Outside rear view folding mirror switch
Pickup
Power window circuit breaker 30a
Radio
Rdo ign fuse 24 10a
Rear seat audio module
Rear wiper/ washer switch and endgate/ liftgate window release switch (utility)
Retained accessory power (rap) relay
Right door lock and window switch (2 door)
Right high beam headlamp
Right lumbar switch
Rr wpr fuse 23 15a
Rt hi fuse 10a
S204
S290
S476
Sp200 (center front of dash)
Steering wheel controls (utility)
Str whl rdo ign fuse 18 2a
Sunroof module (utility)
Tcc/ stop- lamp switch
To hvac fuse (diagram 5 of 5)
Transfer case select switch (w/ electric shift 4wd)
Transfer case shift control module
Underhood fuse block
Utility
Utility w/ climate control
Utility w/ manual hvac control
Vehicle control module (vcm)
Vehicle control module (vcm) (w/o electric shift 4wd)
Vehicle interface unit
W/ electric shift 4wd
W/o memory
Window lockout switch (4 door)
Windshield wiper motor

POWER DOOR LOCKS

Power Door Lock Wiring Diagram for GMC Jimmy 1999

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List of elements for Power Door Lock Wiring Diagram for GMC Jimmy 1999:

(body harn, near breakout to rear doors) s307
A5 c1
B11
Battery
Body control module (under dash, on heater case)
Body relay block
Body relay block (behind left side of dash, near i/p fuse block)
D10
Door lock relay
Door unlock relay
Dr lk rly
Dr unlk rly
Driver door unlock relay
Drv dr unlk rly
E10
E11
E12
Endgate or liftgate lock cylinder switch
F10
F12
G117 (right rear of engine)
G202 (left side of dash)
Ground
Hot at all times
I/p fuse block
Left door lock and window switch
Left front door lock actuator
Left rear door lock actuator
Liftgate lock actuator
Lock
Mir/lck fuse 7 10a
Mirrors system
Pwr lks fuse 14 15a
Remote control door lock receiver (behind lower left side of dash)
Right door lock and window switch
Right front door lock actuator
Right rear door lock actuator
S308 (body harn, near breakout to left rear door)
Splice pack sp202 (left center of dash)
Tan
Trc fuse 10a
Underhood fuse block
Unlock
W/ keyless entry

POWER MIRRORS

Electrochromic Mirror Wiring Diagram for GMC Jimmy 1999

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List of elements for Electrochromic Mirror Wiring Diagram for GMC Jimmy 1999:

(left side of dash) g202
(not used)
Automatic inside day-night mirror
B/u lamp fuse 25 25a
B11
Backup lamp switch (a/t) (part of transmission range switch) (2.2l) (on right side of transmission) (4.3l) (on left side of transmission)
C/m
Exterior lights system
Hot in run
Hot in run or start
Hvac1 fuse 21 10a
I/p fuse block (on left side of dash)
Interior lamps system
Nca
Note: s309: (w/o mobile telephone) (body harness, between breakouts for rear doors & endgate connectors, 98 cm from breakout for rear doors) s309: (w/mobile telephone) (body harness, between 4 pin pig tailed connector to driver's seat & rear doors, 7 cm from breakout for left front seat)
Off
Photo sensor
Pnk
Power & logic circuits
Power distribution system
S302
S309 (see note)
Splice pack sp200 (strapped to body harness, center front of dash)
Underhood bussed electrical center (ubec) (on top of left front fender wall)
Veh b/u fuse 12 15a

Power Mirrors Wiring Diagram for GMC Jimmy 1999

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List of elements for Power Mirrors Wiring Diagram for GMC Jimmy 1999:

1999-01
Body relay block (behind left side of dash, near i/p fuse block)
Down
Driver outside rearview mirror
E12
F12
Front passenger outside rearview mirror
G202 (left side of dash)
Hot at all times
Ilum
Interior lights system
Left
Left/ right m
Mir/lcks fuse 7 3a
Motor
Nca
Outside rear view mirror switch
Power door locks system
Right
S501
Underhood fuse block
Up/ down m

POWER SEATS

6-Way & Recliner Power Seat Wiring Diagram for GMC Jimmy 1999

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List of elements for 6-Way & Recliner Power Seat Wiring Diagram for GMC Jimmy 1999:

Back
Body relay block
Frt dn
Frt up
Fwd
G404 (left rear body corner)
Hot at all times
Left seat adjuster switch
Pwr seats circuit breaker 20a
Rear dn
Rear up
Recl fwd
Recl rwd
Right seat adjuster switch
S304
S313
S320
Seat front height motor
Seat lateral motor
Seat rear height motor
Seat recliner motor
Tan

Heated Seats Wiring Diagram for GMC Jimmy 1999

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List of elements for Heated Seats Wiring Diagram for GMC Jimmy 1999:

Batt
Body controls
Cruise fuse 3 10a
G404 (left rear body corner)
Gnd
Heated output
Heater element seat back
Heater element seat cushion
Hot at all time
Hot in run
Htd seat fuse 20a
I/p fuse block
Left heated seat module
Left lumbar switch
Nca
Off
Pnk
Right heated seat module
Right lumbar switch
S313
S320
Splice pack sp200
Sw/ntc
Underhood bussed center

Lumbar Wiring Diagram for GMC Jimmy 1999

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List of elements for Lumbar Wiring Diagram for GMC Jimmy 1999:

Body relay block
G404 (left rear body corner)
Hot at all times
Left lumbar motor
Left lumbar switch
Nca
Out
Pwr seats circuit breaker 20a
Red
Right lumbar motor
Right lumbar switch
S304
S313
S320
S427

POWER TOP/SUNROOF

Power Top/Sunroof Wiring Diagrams for GMC Jimmy 1999

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List of elements for Power Top/Sunroof Wiring Diagrams for GMC Jimmy 1999:

(not used)
Body relay block (behind left side of dash, near i/p fuse block)
C390
C391
C392
Close
G202 (left side of dash)
Ground
Hot in accy, run and rap
Ign
Ls common
Ls1
Ls2
Ls3
Motor close &
Motor open & tilt down
Open
Open & down input
Power window circuit breaker 30a
Red
S302
Sun roof module (at front of sun roof)
Sun roof motor (in front of sun roof)
Sun roof switch
Sw comm
Tilt up
Tilt up input close &

POWER WINDOWS

Power Window Wiring Diagram, 2 Door for GMC Jimmy 1999

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List of elements for Power Window Wiring Diagram, 2 Door for GMC Jimmy 1999:

Body relay block (behind left side of dash, near i/p fuse block)
C1 f
C1 k
C2 c
Express down module
G202 (left side of dash)
Hot in acc, run & retained acc power
Illum lamp
Illumination lamp
Interior lights system
Left door lock & side window switch
Left front window motor
Left front window switch
Power window circuit breaker 30a
Right door lock & side window switch
Right front window motor
Right front window switch
S501
Tan

Power Window Wiring Diagram, 4 Door for GMC Jimmy 1999

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List of elements for Power Window Wiring Diagram, 4 Door for GMC Jimmy 1999:

(body harn, in breakout to left rear door, on pillar)
Body relay block (behind left side of dash, near i/p fuse block)
C1 k
Express down module
G202 (left side of dash)
Hot in acc, run & retained acc power
Illum
Illum- ination lamp
Illumination
Interior lights system
Left front door lock & side window switch
Left front window motor
Left front window switch
Left rear window motor
Left rear window switch
Power window circuit breaker 30a
Right front door lock & side window switch
Right front window motor
Right front window switch
Right rear window motor
Right rear window switch
S306
S501
Side window lockout switch
Tan

SHIFT INTERLOCKS

Shift Interlock Wiring Diagram, with Column Shift for GMC Jimmy 1999

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List of elements for Shift Interlock Wiring Diagram, with Column Shift for GMC Jimmy 1999:

(4 dr. endgate)
(left side of dash) g202
(liftgate and
(not used)
(utility)
2 dr. endgate)
B/u lamp fuse 25 25a
B12
Brake/ transmission shift interlock solenoid (on shift lever assembly, middle of floor)
Btsi fuse 10a
C12
C204
Hot in run, or start
Park/neutral position switch
Pnk
Splice pack sp204
Stop lamp switch (on brake pedal support bracket)
To transfer case controls
Underhood fuse block

Shift Interlock Wiring Diagram, with Floor Shift for GMC Jimmy 1999

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List of elements for Shift Interlock Wiring Diagram, with Floor Shift for GMC Jimmy 1999:

Automatic transmission controller (in center floor console)
B/u lamp fuse 25 25a
B12
Body relay block
Btsi fuse 10a
Btsi solenoid
C12
G201 (right side of dash)
Hot in run, or start
Park solenoid
Park/neutral position switch
Pnk
Splice pack sp204
Tcc/stop lamp switch (on brake pedal support bracket)
To transfer case controls
Underhood fuse block

STARTING/CHARGING

Charging Wiring Diagram for GMC Jimmy 1999

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List of elements for Charging Wiring Diagram for GMC Jimmy 1999:

(2.2l) (4.3l)
(4.3l) (2.2l)
(right front of engine block) g119 g120 (right side of engine block, under generator)
(right front of engine compt) powertrain control module or vehicle control module
A10
Battery
C1 c3
C1 c4
Charge indicator
Class ii data
Fuse holder (right of radiator)
Fusible link (10 ga- red)
G109 (right radiator support)
G118 (right front frame rail)
Generator l
Hot at all times
I/p fuse block (left end of dash)
Instrument cluster
L term. control
Not used
Rdo batt fuse 19 10a 15a
Red
S240 (4.3l w/ auto a/c)
Splice pack 201 (below i/p fuse block)
Starter solenoid

Starting Wiring Diagram for GMC Jimmy 1999

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List of elements for Starting Wiring Diagram for GMC Jimmy 1999:

(4.3l) (2.2l)
(a/t)
(a/t) (m/t)
(m/t)
(m/t) (a/t)
(right front of engine block) g119 g120 (right side of engine block, under generator)
Accy
B stud
Battery
Battery maxifuse 175a
Bulb test
C1 c2
C2 a11
C3 e2
Clutch pedal position switch (clutch pedal bracket)
Crank fuse 10a
D11
F11 c1
Fuse holder (right of radiator)
Fusible link (10 ga- red)
G109 (right radiator support)
G118 (right front frame rail)
G119 (4.3l) (right front of engine block)
G120 (2.2l) (right side of engine block, under generator)
Generator
Hold- in coil
Hot at all times
Ign a fuse 40a
Ign c fuse 20a
Ignition switch
Lock
Off
P/n
Pull- in coil
Red
Run
Start
Starter motor
Starter relay
Transmission range switch (left side of transmission)
Underhood fuse block (left front fender)