POWER DISTRIBUTION – GMC Sonoma 1999 – SYSTEM WIRING DIAGRAMS

POWER DISTRIBUTION

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

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

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

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

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

List of elements for Power Distribution Wiring Diagram (5 of 5) for GMC Sonoma 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