Electrical Center Identification Views Label
| Table 1: | Fuse Block - Underhood Details (Uplevel Pickup) |
| Table 2: | Fuse Block - Underhood Details (Uplevel Utility) |
| Table 3: | Fuse Block - I/P Detail |
Fuse Block - Underhood Details (Base Pickup)
Fuse/Circuit Breaker | Rating | Description |
|---|---|---|
MaxiFuses | ||
INT BATT | 50A | HDLP SW, AUX PWR, RDO BATT, CIGAR LTR, and CTSY LP Fuses |
ABS | 60A | Electronic Brake Control Module (EBCM) |
IGN B | 50A | Ignition Switch |
RAP | 50A | Retained Accessory Power (RAP) Relay |
IGN A | 40A | Starter Relay and Ignition Switch |
STUD #2 | 30A | Not Used |
Mini Fuses | ||
TRL TRN | 10A | Not Used |
LT TRN | 10A | Park/Turn Signal Lamp - LR |
BTSI | 10A | Stop Lamp Switch and Transfer Case Shift Control Module (w/ NP1) |
PARK LP | 20A | Park Lamp Relay, Headlamp Grounding Relay, and Headlamp Switch |
HVAC | 30A | Blower Motor Relay |
HAZ LP | 20A | Multifunction Switch (Hazard) |
TRR TRN | 10A | Not Used |
RT TRN | 10A | Park/Turn Signal Lamp - RR |
TRCHMSL | 10A | Not Used |
VECHMSL | 10A | Center High Mounted Stop Lamp (CHMSL), and Cruise Control Module (CCM) |
TRL B/U | 10A | Not Used |
ECM I | 15A | Electronic Ignition Control Module (EICM), Powertrain Control Module (PCM), Crankshaft Position (CKP) Sensor, Central Sequential Fuel Injection (CSFI), Fuel Injectors 1-6 (4.3 L only), and Ignition Coil (4.3 L only) |
LD LEV | 25A | Not Used |
VEH B/U | 15A | Backup Lamps - Right/Left |
ENG I | 10A | Evaporative Emission (EVAP) Canister Purge Solenoid, Evaporative Emission (EVAP) Canister Vent Solenoid, Mass Air Flow (MAF) Sensor (4.3 L), and Camshaft Position (CMP) Sensor (4.3 L) |
OXYSEN | 20A | Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1, Heated Oxygen Sensor (HO2S) Bank 1 Sensor 2 (4.3 L only), Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1 (4.3 L only) |
RR PRK | 10A | License Lamp, Marker Lamp, and Park/Turn Signal Lamp - RR |
ECM B | 20A | Fuel Pump Relay, Powertrain Control Module (PCM) |
B/U LP | 25A | Backup Lamp Switch (w/ M/T) or Park Neutral Position (PNP) and Backup Lamp Switch (w/ A/T) |
IGN E | 10A | A/C Compressor Relay, Secondary Air Injector (AIR) Relay (w/ California Emissions only) |
LR PRK | 10A | License Lamp, Marker Lamp, and Park/Turn Signal Lamp - LR |
RR DEFOG | 30A | Not Used |
TRL PRK | 10A | Not Used |
LT HDLP | 15A | Headlamp - Low Beam - Left, and Daytime Running Lamp (DRL) Relay |
HTD MIR | 10A | Not Used |
RT HDLP | 15A | Headlamp - Low Beam - Right, and Headlamp - High Beam - Right |
MIR/LKS | 3A | Outside Rear View Mirror Switch, Door Lock and Side Window Switch, LH/RH |
ATC | 20A | Transfer Case Shift Control Module |
A/C | 10A | Not Used |
FOG LP | 15A | Daytime Running Lamps (DRL) Relay |
TBC | 10A | Body Control Module (BCM) and Multifunction Switch (Flash to Pass) |
RT TURN | 10A | Park/Turn Signal Lamp - RR, and Marker Lamp |
CRANK | 10A | Transfer Case Shift Control Module, Clutch Pedal Position (CPP) Switch (M/T Only), and Park/Neutral Position (PNP) and Backup Lamp Switch (A/T Only) |
LT TURN | 10A | Park/Turn Signal Lamp - LR, and Marker Lamp |
FR PRK | 10A | Park/Turn Signal Lamps - LR/RR, Marker Lamps |
W/W PMP | 10A | Not Used |
IGN C | 20A | Ignition Switch |
STOP LP | 20A | Stop Lamp Switch and Center High Mounted Stop Lamp (CHMSL) Relay |
HDLP W/W | 15A | Not Used |
HORN | 15A | Horn - Left/Right |
HTD SEAT | 20A | Not Used |
RR W/W | 15A | Not Used |
Micro Relays | ||
F/PUMP | -- | Fuel Pump and Fuel Injectors (2.2 L) |
DRL | -- | Headlamp - High Beam - Left |
LIFT GLASS | -- | Not Used |
A/C | -- | Not Used |
FOG LP | -- | Not Used |
HORN | -- | HORN Fuse |
CHMSL | -- | Multifunction Switch supplies the LT TURN, RT TURN, RT TRN, and LT TRN fuses |
Mini Relays | ||
STARTER | -- | Starter Solenoid (Coil) |
RR DEFOG | -- | Not Used |
HDLP PWR | -- | RT HDLP, and LT HDLP fuses |
Fuse Block - Underhood Details (Uplevel Pickup)
Fuse/Circuit Breaker | Rating | Description |
|---|---|---|
MaxiFuses | ||
INT BATT | 50A | HDLP SW, AUX PWR, RDO BATT, CIGAR LTR, CTSY LP, and PWR LKS Fuses |
ABS | 60A | Electronic Brake Control Module (EBCM) |
IGN B | 50A | Ignition Switch |
RAP | 50A | Retained Accessory Power (RAP) Relay |
IGN A | 40A | Starter Relay and Ignition Switch |
STUD #2 | 30A | Not Used |
Mini Fuses | ||
TRL TRN | 10A | Not Used |
LT TRN | 10A | Park/Turn Signal Lamp - LR |
BTSI | 10A | Stop Lamp Switch, and Transfer Case Shift Control Module (w/ NP1) |
PARK LP | 20A | Park Lamp Relay, Headlamp Grounding Relay, and Headlamp Switch |
HVAC | 30A | Blower Motor Relay |
HAZ LP | 20A | Multifunction Switch (Hazard) |
TRR TRN | 10A | Not Used |
RT TRN | 10A | Park/Turn Signal Lamp - RR |
TRCHMSL | 10A | Not Used |
VECHMSL | 10A | Center High Mounted Stop Lamp (CHMSL), and Cruise Control Module (CCM) |
TRL B/U | 10A | Not Used |
ECM I | 15A | Ignition Control Module (ICM), Powertrain Control Module (PCM), Crankshaft Position (CKP) Sensor, Fuel Injectors 1-6 (4. 3L only), and Ignition Coil (4.3 L only) |
LD LEV | 25A | Not Used |
VEH B/U | 15A | Backup Lamps - Right/Left |
ENG I | 10A | Evaporative Emission (EVAP) Canister Purge Solenoid, Evaporative Emission (EVAP) Canister Vent Solenoid, Mass Air Flow (MAF) Sensor (4.3 L), and Camshaft Position (CMP) Sensor (4.3 L) |
OXYSEN | 20A | Heated Oxygen Sensor (HO2S) Bank 1, Sensor 1, Heated Oxygen Sensor (HO2S) Bank 1, Sensor 3 (4.3 L only), Heated Oxygen Sensor (HO2S) Bank 2, Sensor 1 (4.3 L only) |
RR PRK | 10A | License Lamp, Marker Lamp, and Park/Turn Signal Lamp - RR |
ECM B | 20A | Fuel Pump Relay, Powertrain Control Module (PCM) |
B/U LP | 25A | Park Neutral Position (PNP) and Backup Lamp Switch |
IGN E | 10A | A/C Compressor Relay, Secondary Air Injection (AIR) Relay (w/ California Emissions only) and Rear Defogger Relay |
LR PRK | 10A | License Lamp, Marker Lamp, and Park/Turn Signal Lamp - LR |
RR DEFOG | 30A | Not Used |
TRL PRK | 10A | Not Used |
LT HDLP | 15A | Headlamp - Low Beam - Left, and Daytime Running Lamp (DRL) Relay |
HTD MIR | 10A | Outside Rear View Mirror - Driver/Passenger (Heating Element) |
RT HDLP | 15A | Headlamp - Low Beam - Right, and Headlamp - High Beam - Right |
MIR/LKS | 3A | Outside Rear View Mirror Switch, Door Lock and Side Window Switch, LH/RH |
ATC | 20A | Transfer Case Shift Control Module, and Transfer Case Encoder Motor (w/o NP1) |
A/C | 10A | A/C Compressor Relay |
FOG LP | 15A | Fog Lamp Relay, and Daytime Running Lamps (DRL) Relay |
TBC | 10A | Body Control Module (BCM), Remote Control Door Lock Receiver, and Multifunction Switch (Flash to Pass ) |
RT TURN | 10A | Park/Turn Signal Lamp - RR, and Marker Lamp |
CRANK | 10A | Transfer Case Shift Control Module, Clutch Pedal Position (CPP) Switch (M/T Only), and Park/Neutral Position (PNP) and Backup Lamp Switch (A/T Only) |
LT TURN | 10A | Park/Turn Signal Lamp - LR, and Marker Lamp |
FR PRK | 10A | Park/Turn Signal Lamp - LR/RR, and Marker Lamps |
W/W PMP | 10A | Not Used |
IGN C | 20A | Ignition Switch |
STOP LP | 20A | Stop Lamp Switch and Center High Mounted Stop Lamp (CHMSL) Relay |
HDLP W/W | 15A | Not Used |
HORN | 15A | Horn - Left/Right |
HTD SEAT | 20A | Not Used |
RR W/W | 15A | Not Used |
Micro Relays | ||
F/PUMP | -- | Fuel Pump, and Fuel Injectors (2.2 L) |
DRL | -- | Headlamp - High Beam - Left |
LIFT GLASS | -- | Not Used |
A/C | -- | A/C Compressor |
FOG LP | -- | Fog Lamps and Fog Lamp Switch |
HORN | -- | HORN fuse |
CHMSL | -- | Multifunction Switch supplies the LT TURN, RT TURN, RT TRN, and LT TRN Fuses |
Mini Relays | ||
STARTER | -- | Starter Solenoid (Coil) |
RR DEFOG | -- | HTD MIR Fuse |
HDLP PWR | -- | RT HDLP, and LT HDLP fuses |
Fuse Block - Underhood Details (Uplevel Utility)
Fuse/Circuit Breaker | Rating | Description |
|---|---|---|
MaxiFuses | ||
INT BATT | 50A | HDLP SW, AUX PWR, RDO BATT, CIGAR LTR, CTSY LP, and PWR LKS Fuses, and AMPF Fuse (w/ Premium Audio) |
ABS | 60A | Electronic Brake Control Module (EBCM) |
IGN B | 50A | Ignition Switch |
RAP | 50A | Retained Accessory Power (RAP) Relay, POWER SEATS Circuit Breaker (w/ Power Seats) |
IGN A | 40A | Starter Relay and Ignition and Start Switch |
STUD #2 | 30A | Trailer Wiring Provision (Power Aux) |
Mini Fuses | ||
TRL TRN | 10A | Trailer Wiring Provision (LP - Stop, T/Sig - LH) |
LT TRN | 10A | Park/Turn Signal Lamp - LR, Turn Signal Lamp - LR (Export) |
BTSI | 10A | Stop Lamp Switch, Transfer Case Shift Control Module (w/ NP1), and Automatic Transmission Shift Lock Actuator (w/ Floor Shift A/T Only) |
PARK LP | 20A | Park Lamp Relay, Headlamp Grounding Relay, and Headlamp Switch |
HVAC | 30A | Blower Motor Relay (w/o Electronic Climate Control), Blower Motor Control Module (w/ Electronic Climate Control) |
HAZ LP | 20A | Multifunction Switch (Hazard) |
TRR TRN | 10A | Trailer Wiring Provision (LP - Stop, T/Sig - RH |
RT TRN | 10A | Park/Turn Signal Lamp - RR, Turn Signal Lamp - RR (Export) |
TRCHMSL | 10A | Trailer Wiring Provision (LP - High MT Stop) |
VECHMSL | 10A | Center High Mounted Stop Lamp (CHMSL), Center High Mounted Stop Lamp (CHMSL) Resistor, Cruise Control Module (CCM), and Tail/Stop Lamp - LH/RH (Export) |
TRL B/U | 10A | Trailer wiring Provision (LP-B/U) |
ECM I | 15A | Ignition Control Module (ICM), Crankshaft Position (CKP) Sensor, Central Sequential Fuel Injection (Central SFI), Fuel Injectors 1-6, and Ignition Coil |
LD LEV | 25A | Not Used |
VEH B/U | 15A | Backup Lamp - Right/Left, Inside Rear View Mirror (w/ Automatic Day - Night Mirror Only) |
ENG I | 10A | Evaporative Emission (EVAP) Canister Purge Solenoid, Evaporative Emission (EVAP) Canister Vent Solenoid, Mass Air Flow (MAF) Sensor, and Camshaft Position (CMP) Sensor |
OXYSEN | 20A | Heated Oxygen Sensor (HO2S) Bank 1, Sensor 1, Heated Oxygen Sensor (HO2S) Bank 1, Sensor 3, Heated Oxygen Sensor (HO2S) Bank 2, Sensor 1 |
RR PRK | 10A | Park/Turn Signal Lamps - RR (Domestic), Tail/Stoplamp - RH (Export) |
ECM B | 20A | Fuel Pump Relay |
B/U LP | 25A | Backup Lamp Switch (w/ M/T) and Park Neutral Position (PNP) and Backup Lamp Switch (w/ A/T) |
IGN E | 10A | A/C Compressor Relay, Secondary Air Injection (AIR) Relay (w/ California Emissions only), Rear Defogger Relay, Headlamp Leveling Switch (Export), and Headlamp Leveling Actuator Motor, LH/RH (Export), Automatic Level Control (ALC) Sensor and Compressor (Envoy) |
LR PRK | 10A | Park/Turn Signal Lamps - LR (Domestic) and Tail/Stoplamp - LH (Export) |
RR DEFOG | 30A | Rear Window Defogger Grid |
TRL PRK | 10A | License Lamps, and Trailer Wiring Provisions (LP Park) |
LT HDLP | 15A | Daytime Running Lamps (DRL) Relay and Headlamp - Low Beam - Left |
HTD MIR | 10A | Outside Rearview Mirror - Right/Left(Heating Element) |
RT HDLP | 15A | Headlamp - Low Beam - Right, and Headlamp - High Beam - Right |
MIR/LKS | 3A | Outside Rear View Mirror Switch, Door Lock and Side Window Switch - Left/Right, Lift Glass Relay, Liftgate or Endgate Lock Cylinder Switch |
ATC | 20A | Transfer Case Shift Control Module, and Transfer Case Encoder Motor (w/o NP1) (Except Bravada) |
A/C | 10A | A/C Compressor Relay |
FOG LP | 15A | Fog Lamp Relay, and Daytime Running Lamps (DRL) Relay |
TBC | 10A | Body Control Module (BCM), Remote Control Door Lock Receiver (RCDLR), and Multifunction Switch (Flash to Pass) |
RT TURN | 10A | Park/Turn Signal Lamp - RH, Marker Lamp, Repeater Lamps (Export) |
CRANK | 10A | Transfer Case Shift Control Module, Clutch Pedal Position (CPP) Switch (M/T Only), and Park/Neutral Position (PNP) and Backup Lamp Switch (A/T Only) |
LT TURN | 10A | Park/Turn Signal Lamp - LH, Marker Lamp, Repeater Lamp (Export) |
FR PRK | 10A | Park/Turn Signal Lamp - LH/RH (Domestic), Marker Lamp, Headlamp Washer Pump Relay (Export) |
W/W PMP | 10A | Headlamp Washer Fluid Pump Relay (Export Only) |
IGN C | 20A | Ignition Switch |
STOP LP | 20A | Stop Lamp Switch |
HDLP W/W | 15A | Headlamp Washer Fluid Pump Relay (Export Only) |
HORN | 15A | Horn - Left/Right |
HTD SEAT | 20A | Seat Heater Module, LH/RH (w/ Heated Seats), Lumbar Switch, RH, LH (w/ Heat and Lumbar) |
RR W/W | 15A | Rear Window Wiper Motor |
Micro Relays | ||
F/PUMP | -- | Fuel Pump |
DRL | -- | Headlamp - High Beam - Left |
LIFT GLASS | -- | Liftgate/Endgate Window Release Actuator |
A/C | -- | A/C Compressor |
FOG LP | -- | Fog Lamps and Fog Lamp Switch |
HORN | -- | HORN fuse |
CHMSL | -- | Not Used |
Mini Relays | ||
STARTER | -- | Starter Solenoid (Coil) |
RR DEFOG | -- | RR DEFOG, and HTD MIR fuses |
HDLP PWR | -- | RT HDLP, and LT HDLP fuses |
Fuse Block - I/P Detail
Fuse No. | Fuse/Circuit Breaker | Rating | Description |
|---|---|---|---|
1 | -- | -- | Not Used |
2 | CIGAR LTR | 15A | Cigar Lighter, DLC |
3 | CRUISE | 10A | BCM, CCM, Multifunction Switch (Cruise Control Switch), Seat Lumbar Switch - Driver/Front Passenger |
4 | GAUGES | 10A | BCM, IPC |
5 | PARK LP | 10A | BCM, Outside Rear View Mirror Switch, Door Lock and Side Window Switch - Driver/Front Passenger, Side Window Lockout Switch, and Rear Seat Audio Control (Envoy only), IP Ashtray Lamp (Except Envoy) |
6 | STR WHL ILLUM | 2A | Redundant Steering Wheel Controls (Utility Only) |
7 | HDLP SW | 10A | Headlamp Switch |
8 | CTSY LP | 10A | Courtesy Lamps - Left/Right Console, Inadvertent Power Relay, Transfer Case Shift Control Module (NP1) |
9 | HVAC | 20A | HVAC Control Module |
10 | TURN | 20A | Multifunction Switch (Hazard Switch) |
11 | CLSTR | 10A | IPC, PCM (2.2 L), Automatic Transmission Shift Lock Actuator (4.3 L w/ Floor Shift A/T), and Automatic Transmission |
12 | ILLUM | 10A | Radio, HVAC Control Module, Fog Lamp Switch, Rear Wiper/Washer and Endgate/Liftgate Window Release Switch (Utility), DIC (Utility), Automatic Transmission Shift Lever Position Indicator (Utility, w/ Floor Shift A/T), Automatic transmission Preference Switch (GMC Jimmy Only), Inflatable Restraint IP Module Switch (Pickup), BCM, Transfer Case Select Switch, IPC, Headlamp Leveling Switch (Export) |
13 | AUX PWR | 20A | Accessory Power Outlet - Left/Right, Accessory Power Outlet - Floor Console (Envoy), Accessory Power Outlet - Rear (Envoy) |
14 | PWR LKS | 15A | Door Lock Relay, Door Unlock Relay, and Door Unlock Relay - Driver (w/ Power Door Locks) |
15 | 4WD | 10A | PCM, Transfer Case Shift Control Module, Transfer Case Shift Control Switch (w/ NP1 or NP8), Front Axle Vacuum Solenoid (w/ NP1 or NP8), Front Axle Indicator Switch (w/ NP1 or NP8) |
16 | SIR | 15A | Inflatable Restraint IP Module Switch (Pickup Only), Inflatable Restraint Sensing and Diagnostic Module (SDM) |
17 | FRT WPR | 25A | Windshield Wiper Motor, Multifunction Switch (Wiper Switch) |
18 | STR WHL RDO IGN | 2A | Redundant Steering Wheel Controls (Utility only) |
19 | RDO BATT | 15A | Radio, IPC, HVAC Control Module, VIU (Envoy only), Remote Playback Device - Cassette Player, (Bravada only) |
20 | AMPF | 25A | Audio Amplifier (w/ Premium Audio) |
21 | HVAC I | 10A | Air Temperature Actuator, HVAC Control Module, Inside Rear View Mirror (Utility w/Automatic Day - Night Mirror), Air Temperature Sensor Assembly - Inside (Utility), Vacuum Control Assembly |
22 | ABS | 10A | Stop Lamp Switch, Electronic Brake Control Module (EBCM) |
23 | RR WPR | 15A | Rear Wiper/Washer Switch, Endgate/liftgate Window Release Switch (Utility) |
Sunroof Switch (Late Production Pickup w/ ZXR/Extreme) | |||
24 | RDO IGN | 10A | Radio, DIC (Utility), Rear Seat Audio (RSA) Module (Envoy), VIU (Envoy), Outside Rear View Mirror Switch (Envoy) |
Electrical Center Identification Views Terminal Location Views
| Figure 1: |
Fuse Block - Underhood
|
| Figure 2: |
Relay Block - Body
|
