GM Service Manual Online
For 1990-2009 cars only

Underhood Fuse Block


Object Number: 543370  Size: MF

Underhood Fuse Block

Fuse/Circuit Breaker Relay

Rating

Description

1 - ALDL Fuse

10A

Data Link Connector (DLC), Valet Switch

2 - ACCY Fuse

15A

Outside Moisture Sensor, Windshield Wiper/Washer Switch

3 - WSW Fuse

30A

Windshield Wiper Motor

5 - HDLOBML Fuse

15A

Left Low Beam Headlamp

6 - HDLOBMR Fuse

15A

Daytime Running Lamp Relay, Daytime Running Lamp Resistor, Right Low Beam Headlamp

7 - I/P Fuse

10A

Instrument Cluster

8 - PCM BATT Fuse

10A

Powertrain Control Module (PCM), Theft Deterrent Module

9 - HDHIBMR Fuse

10A

Right High Beam Headlamp

10 - HDHIBML Fuse

10A

Left High Beam Headlamp

11 - IGN 1 Fuse

10A

Evaporative Emissions (EVAP) Canister Purge Valve, Mass Air Flow and Intake Air Temperature (MAF/IAT) Sensor, Secondary Air Injection (AIR) Pump Relays 1 and 2, Secondary Air Injection (AIR) Solenoid Valve

12 - FOG Fuse

10A

Fog Lamp Relay

13 - TRANS Fuse

10A

Automatic Transaxle

14 - CR CONT Fuse

10A

Cruise Control Module

15 - COIL MDL Fuse

20A

Ignition Control (IC) Module--Front Bank, Ignition Control (IC) Module--Rear Bank

16 - INJR 2 Fuse

10A

Fuel Injector 2, Fuel Injector 3, Fuel Injector 5, Fuel Injector 8

19 - PCM IGN Fuse

10A

Powertrain Control Module (PCM)

20 - OXY SEN Fuse

10A

Heated Oxygen Sensor (HO2S) (Bank 2 Sensor 1), Heated Oxygen Sensor (HO2S) (Bank 1 Sensor 2)

21 - INJR 1 Fuse

10A

Fuel Injector 1, Fuel Injector 4, Fuel Injector 6, Fuel Injector 7

22 - C/LTR 2

20A

Front Cigar Lighter (Domestic), Left Rear Auxiliary Power Outlet (Export), Left Middle Cigar Lighter (w/V4U), Right Middle Cigar Lighter (w/V4U), Right Rear Auxiliary Power Outlet (Export)

23 - C/LTR 1

20A

Left Rear Cigar Lighter, Right Rear Cigar Lighter

24 - DRL Fuse

15A

DRL Relay

25 - HORN Fuse

15A

HORN Relay

26 - AC CLU Fuse

15A

A/C Clutch Relay

27 - HDLP HI BM Relay

--

HDHIBML Fuse, HDHIBMR Fuse

28 - HDLP LO BM Relay

--

HDLOBML Fuse, HDLOBMR Fuse

29 - FOG LP Relay

--

Left Front Fog Lamp, Right Front Fog Lamp

30 - DRL Relay

--

DRL Resistor

31 - HORN Relay

--

Horn A Note, Horn F Note

32 - AC CLU Relay

--

A/C Compressor Clutch

34 - ACCY Relay

--

ACCY Fuse, WSW Fuse

36 - START 1 Relay

--

Starter Solenoid

37 - COOLFAN 2 Relay

--

Right Cooling Fan Motor

38 - IGN 1 Relay

--

OXY SEN Fuse INJR1 Fuse 1 INJR 2, Fuse, CR CONT Fuse, IGN 1 Fuse, PCM IGN Fuse, TRANS Fuse, MDL COIL Fuse

39 - COOLFAN S/P Relay

--

Left Cooling Fan Motor, Ground, COOLFAN 1 Relay

40 - COOLFAN 1 Relay

--

Left Cooling Fan Motor, COOLFAN S/P Relay

41 - START Circuit Breaker

30A

Starter 1 Relay

43- ABS Fuse

50A

Electronic Brake Control Module (EBCM)

44 - AIR PUMP B Fuse

50A

Secondary Air Injecton (AIR) Pump Relay B

45 - AIR PUMP A Fuse

50A

Secondary Air Injecton (AIR) Pump Relay A

46 - COOLFAN 2 Fuse

30A

COOLFAN 2 Relay

47 - COOLFAN 1 Fuse

30A

COOLFAN 1 Relay, COOLFAN S/P Relay

Rear Fuse Block


Object Number: 543322  Size: MF

Rear Fuse Block

Fuse/Circuit Breaker/Relay

Rating

Description

1 - F/PMP Fuse

20A

Fuel Pump Relay

2 - HVAC BAT Fuse

10A

Instrument Panel Integration Module (IPM)

3 - MEM T&T Fuse

10A

Left Adaptive Seat Module, Left Front Lumbar Switch, Left Front Seat Switch, Memory Seat Module (MSM), Rear Heater and A/C Control, Right Adaptive Seat Module, Steering Column Module

4 - RR LUM/PWR ANT Fuse

20A

Left Rear Lumbar Switch, Power Antenna, Right Rear Lumbar Switch,

5 - DRV MDL Fuse

10A

Driver Door Module

6 - HTDST LR Fuse

10A

Left Rear Heated Seat Module

7 - PWR T&T Fuse

30A

Steering Column Module (w/N37)

8 - SIR Fuse

10A

Inflatable Restraint Sensing and Diagnostic Module (SDM)

10 - LP PK R Fuse

15A

Right Front Park/Turn Lamp, Right Front Side Marker Lamp, Right Middle Opera Lamp (w/V4U or B9Q), Right Position Relay, Right Rear Opera Lamp (w/V4U or B9Q), Right Tail Lamps

11 - VENT SOL Fuse

10A

Evaporative Emissions (EVAP) Canister Vent Valve

12 - IGN 1 Fuse

10A

ABS/TCC Switch, Cruise Control Switch, Instrument Cluster, Rear Fog Lamp Relay, Rear Integration Module (RIM), Rear Object Sensor Control Module, Turn Signal Switch

13 - DIMR Fuse

10A

Dash Integration Module (DIM), Left License Lamp, Right License Lamp, Turn Signal Switch,

14 - SUNSHADE Fuse

10A

Sunshade Module

15 - NAV Fuse (w/UY4)

10A

Navigation Data Entry Processor, Navigation Data Processor

16 - HTDST LF Fuse

10A

Left Front Heated Seat Module

17 - INT LP Fuse

10A

Interior Relay

18 - RRDR MDL Fuse

10A

Left Rear Door Module (w/o B9Q), Right Rear Door Module (w/o B9Q)

19 - STOP LP Fuse

15A

Stoplamp/Automatic Transmission Shift Lock Control Switch

20 - PRK/REV Fuse

10A

Park Relay, Reverse Relay

21 - AUDIO Fuse

15A

Communiport® Cellular Telephone Module, Compact Disc (CD) Changer, Radio (w/UY4/ UE7/UE9)

22 - RAP Fuse

30A

RAP Relay

23 - LP PK L Fuse

15A

Left Front Park/Turn Lamp, Left Front Side Marker Lamp, Left MiddleOpera Lamp (w/V4U or B9Q), Left Position Lamp Relay, Left Rear Opera Lamp (w/V4U or B9Q), Left Tail Lamps

24 - NIGHTVISION Fuse

10A

Head-Up Display (HUD), Head-Up Display (HUD) Control, Night Vision Camera

25 - PASSMDL Fuse

10A

Right Front Door Module

26 - BODY Fuse

15A

Fuel Door Relay, Trunk Relay

27 - EXPORT LGT/PWR LK Fuse

15A

Daytime Running Lights Relay, Left Park Lamp Relay, Park Position Relay (w/V4U), Rear Fog Lamp Relay, Right Park Lamp Relay, Standby Lamp Relay,

28 - RR BLO Fuse

10A

Rear Blower Motor

29 - IGN SW Fuse

15A

Dash Integration Module (DIM), Ignition Switch, Rear Integration Module (RIM), Remote Function Actuator (RFA)

30 - T SIG/HAZ Fuse

15A

Turn Hazard Flash Module

31 - REV/LK Fuse

10A

LK/CYL Relay, Reverse Relay, Seat Belt Control Module,

32 - CVRTD Fuse

10A

Damper Relay, Electronic Suspension Control Module

33 - HVAC Fuse

10A

Inside Air Temperature Sensor, Instrument Panel Integration Module (IPM)

34 - IGN 3 RR Fuse

10A

BTSI Relay, Electronic Suspension Control Module, Inside Rearview Mirror, Left Adaptive Seat Module, Left Front Heated Seat Module, Left Rear Heated Seat Module, Rear Heater and A/C Control Module. Right Adaptive Seat Module, Right Front Heated Seat Module, Right Rear Heated Seat Module

35 - ABS Fuse

10A

Electronic Brake Control Module (EBCM)

36 - HTDST RF Fuse

10A

Right Front Heated Seat Module

37 - HTDST RR Fuse

10A

Right Rear Heated Seat Module

38 - DIM Fuse

10A

Dash Integration Module (DIM), Generator

39 - F/PMP Relay

--

Fuel Sender

40 - PRK LP Relay

--

DIM Fuse, LP PK L Fuse, LP PK R Fuse

41 - IGN 1 Relay

--

IGN 1 Fuse, SIR Fuse, VENT SOL Fuse

42 - PARK BRK A Relay

--

Park Brake Release Actuator

43 - PARK BRK B Relay

--

Park Brake Release Actuator

44 - PARK Relay

--

Stoplamp/Automatic Transmission Shift Lock Control Switch

45 - REVERSE Relay

--

Inside Rearview Mirror, Left Backup Lamp, Rear Object Sensor Control Module, Right Backup Lamp,

46 - RAP Relay

--

Sunroof Module, SUNSHD Fuse

47 - REV/LKOUT Relay

--

Reverse Lockout Actuator

48 - DAMPER Relay

--

Electronic Suspension Control Module

49 - IGN 3 Relay

--

ABS Fuse, HVAC Fuse, IGN 3 Fuse, NIGHTVISION Fuse

50 - F/TNKDR REL Relay

--

Fuel Door Release Actuator

51 - INT LP Relay

--

IP Compartment Lamp, Left Courtesy Lamp, Left Front Door Courtesy Lamp, Left Front Vanity Lamp, Left Rear Door Courtesy Lamp, Left Rear Vanity Lamp, Overhead Console, Rear Compartment Lamp, Rear Integration Module (RIM), Right Courtesy Lamp, Right Front Door Courtesy Lamp, Right Front Vanity Lamp, Right Rear Door Courtesy Lamp, Right Rear Vanity Lamp

52 - TRK REL Relay

--

Rear Compartment Lid Release Actuator

54 - LK/CYL Relay

--

Shift Interlock Actuator

55 - ELC Relay

--

Automatic Level Control Compressor

56 - PWR SEAT Circuit Breaker

30A

Left Front Lumbar Massage Module, Left Front Lumbar Switch, Left Seat Switch, Memory Seat Module (MSM), Right Front Lumbar Massage Module, Right Front Lumbar Switch, Right Seat Switch

57 - PWR WDO Circuit Breaker

30A

Door Lock Relay (w/B9Q), Driver Door Module, Left Rear Door Module, Passenger Door Module, Right Rear Door Module

58 - CIGAR Relay

--

Underhood Fuse Block

59 - RR DEFOG Relay

--

Rear Defogger, Wavetrap (w/UY4)

60 - PARK BRK Fuse

20A

PARK BRK A Relay, PARK BRK B Relay

61 - RR DEFOG Fuse

40A

RR DEFOG Relay

62 - HVAC BLO Fuse

40A

Blower Motor

63 - AUDIO AMP Fuse

30A

Radio Amplifier

64 - ELC Fuse

30A

Automatic Level Control Compressor, ELC Relay

65 - CIGAR Fuse

40A

CIGAR Relay

Rear Compartment Relay Center (Export)


Object Number: 599557  Size: MF

Rear Compartment Relay Center (Export)

Position

Relay

Description

1

RR FOG LP Relay

Left Rear Fog Lamp, Right Rear Fog Lamp

2

R POS LP Relay

Right Front Position Lamp, Right Front Side Market Lamp, Right Rear Tail Lamp

2

STANDING LP Relay

Left Position Lamp Relay, Right Position Lamp Relay

4

L POS LP Relay

Left Front Posiition Lamp, Left Front Side Marker Lamp, Left Rear Tail Lamp

Steering Column Fuse Holder


Object Number: 599553  Size: MF

Steering Column Fuse Holder

Fuse

Rating

Description

DIM Fuse (1)

2A

Steering Wheel Controls Illumination

Radio Fuse (2)

2A

Steering Wheel Audio Controls

Cruise Fuse (3)

2A

Steering Wheel Cruise Controls