GM Service Manual Online
For 1990-2009 cars only
Table 1: Underhood Block - Right
Table 2: Fuse Block - Left Underhood
Table 3: I/P Fuse Block
Table 4: Rear Fuse Block

Underhood Block - Right


Object Number: 575164  Size: MF

Underhood Block - Right

Device

Rating

Description

AIR PUMP Fuse 1

30 A

Air Pump Relay and Motor (NC8 Only)

COOLING FAN 2 Fuse 2

30 A

COOL FAN 2 Relay

RR DEFOG Fuse 3

40 A

HTD BK LITE Relay

Spare 4

--

Not Used

PWR WDO Circuit Breaker 5

30 A

RAP Relay, Driver Door Module (DDM), Passenger Door Module (PDM), Rear Door Module (RDM)

AUX OT LT Fuse 6

30 A

AUXOT LT Fuse (25 A)

Spare 7

--

Not Used

Spare 8

--

Not Used

Fuse Block - Left Underhood


Object Number: 575171  Size: MF

Fuse Block - Left Underhood

Device

Rating

Description

AIR SOL Fuse 1

10 A

Air Vacuum Valve Solenoid, Air Solenoid Relay

SBM LCM Fuse 2

10 A

Body Control Module (BCM), Instrument Cluster, Lamp Control Module (LCM), Remote Function Actuator (RFA) Module

T/SIG Fuse 3

10 A

Turn Signal/Hazard Switch

OXY SEN Fuse 4

10 A

Oxygen Sensors

SIR Fuse 5

10 A

Inflatable Restraint Sensing And Diagnostic Module (SDM)

PCM Fuse 6

10 A

Mass Air Flow (MAF) Sensor, Powertrain Control Module (PCM)

A/C CLU Fuse 7

10 A

A/C Clutch Relay, Charge Air Control Valve Solenoid

IGNFD Fuse 8

10 A

1-2 Shift Solenoid (1-2 SS) Valve, 2-3 Shift Solenoid (2-3 SS) Valve, ABS/TCC Switch, Evaporative Emissions (EVAP) Purge Valve, Torque Converter Clutch (TCC PWM SOL) Valve

HORN Fuse 9

30 A

Horn Relay

Spare 10

--

Not Used

Spare 11

--

Not Used

INJR Fuse 12

10 A

Fuel Injectors

C3I Fuse 13

10 A

Ignition Control Module

HDHIBMR Fuse 14

10 A

RH High Beam Headlamp

Spare 15

--

Not Used

HDHIBML Fuse 16

10 A

LH High Beam Headlamp

Spare 17

--

Not Used

HDLOBMR Fuse 18

10 A

RH Low Beam Headlamp

HDLOBML Fuse 19

10 A

LH Low Beam Headlamp

STOP Fuse 20

20 A

Stop Lamp/BTSI Switch

F/PUMP Fuse 21

20 A

F/PMP Relay

RUN/CRK Fuse 22

15 A

Ignition Switch

PCM Fuse 23

10 A

Powertrain Control Module (PCM), Theft Deterrent Module

LP PK Fuse 24

25 A

B/U LP Fuse (10A), Lamp Control Module (LCM)

HZDT/SG Fuse 25

15 A

Turn Signal Flasher

Spare 26

--

Not Used

Spare 27

--

Not Used

ABS 2 28

10A

Electronic Brake Control Module (EBCM)

IGN Relay 29

--

A/C CLU Fuse (10 A), C3I Fuse (10 A), IGNFD Fuse (10 A), INJR Fuse (10 A), OXY SEN Fuse (10 A), PCM Fuse (10 A), SBM LCM Fuse (10 A), SIR Fuse (10 A), T/SIG Fuse (10 A)

HORN Relay 30

--

Horns

COOLFAN 1 Relay 31

--

LH Engine Cooling Fan Motor

STARTER Relay 32

--

Starter Solenoid

AIR PUMP Relay 33

--

Air Pump Motor (NC8 Only)

COOLFAN S/P Relay 34

--

LH/RH Engine Cooling Fan Motor

COOLFAN 2 Relay 35

--

RH Engine Cooling Fan Relay

A/C CLU Relay 36

--

A/C Clutch

F/PMP Relay 37

--

Fuel Pump

BAT 1 Fuse 38

60 A

C/LTR Fuse (15 A), CD/PH Fuse (10 A), CSTR/SBM Fuse (10 A), DDM Fuse (10 A), HTDST L Fuse (10 A), PDM Fuse (10 A), RDM Fuse (10 A), RDO Fuse (10 A), SBD Fuse (10 A), TRK REL Fuse (15 A)

BLO MOT Fuse 39

30 A

Blower Control Module

COOL FAN 1 Fuse 40

30 A

Cooling Fan Relay 1

HDLP Fuse 41

30 A

Lamp Control Module (LCM)

BAT 2 Fuse 42

60 A

C/LTRL Fuse (15 A), C/LTRR Fuse (15 A), ELC Circuit Breaker (30 A), HTDST R Fuse (10 A), MEM/RFA Fuse (10 A), PWR Seat Circuit Breaker (25 A)

IGN Fuse 43

40 A

ACCY Relay, IGN 3 Relay, RUN Fuse (10 A)

STARTER Fuse 44

30 A

Starter Relay

ABS Fuse 45

50 A

Electronic Brake Control Module (EBCM)

Fuse Puller 46

--

Fuse Puller

I/P Fuse Block


Object Number: 575168  Size: MF

I/P Fuse Block

Device

Rating

Description

PERIM LP Relay 1

--

Backup Lights, Automatic Day-Night Mirrors

ACCY Relay 2

--

WSW Fuse (30 A), WSW/RFA Fuse (10 A)

IGN 3 Relay 3

--

A/C Fuse (10 A), ABS Fuse (10 A), CR CONT Fuse (10 A), ELC Fuse (10 A), HVAC Fuse (10 A), HUD Fuse (10 A), IGN SEN Fuse (10 A)

A/C Fuse 6

10 A

Mode Actuator, Air Inlet Actuator, Driver Air Mix Actuator, Passenger Air Mix Actuator

PDM Fuse 5

10 A

Passenger Door Module (PDM)

SBM Fuse 4

10 A

Body Control Module (SBM)

ABS Fuse 9

10 A

Electronic Brake and Traction Control Module (EBTCM)

ELC Fuse 8

10 A

ELC Relay

IGN SEN Fuse 7

10 A

Inside Rearview Mirror, Garage Door Opener (w/UG1), Heated Seat Modules (w/W01), Memory Seat Module (MSM) (w/A43)

HUD Fuse 12

10 A

Head-Up Display (HUD) Module, Head-Up Display (HUD) Switch (w/UV6)

CR CONT Fuse 11

10 A

Cruise Control Module, Multi-function Lever

HVAC Fuse 10

10 A

Instrument Cluster, Heater and A/C Control, Heater and A/C Programmer

CTSR/SBM Fuse 13

10 A

Body Control Module (SBM), Instrument Cluster, Heater and A/C Programmer

LP PK L Fuse 14

10 A

Body Control Module (SBM), Underhood Lamp, LH Side Marker Lamps, LH Front Park/Turn Lamp, LH Tail/Signal Lamp, LH Tail/Stop Lamp

LP PK R Fuse 15

15 A

Remote Function Actuator (RFA) Module, License Lamps, Tail/Stop Lamps, Tail/Signal Lamps, RH Side Marker Lamps, RH Front Park/Turn Signal Lamp

RUN Fuse 16

10 A

Ignition Switch

WSW Fuse 17

30 A

Windshield Wiper Motor

Spare 18

--

Not Used

WSW/RFA Fuse 19

10 A

Outside Moisture Sensor, Windshield Wiper/Washer Switch, Remote Function Actuator (RFA) Module

B/U LP Fuse 20

10 A

Perim LP Relay

Rear Fuse Block


Object Number: 575166  Size: MF

Rear Fuse Block

Device

Rating

Description

HTD BK LITE Relay 1

--

Defogger

RAP Relay 2

--

RDO/PH Fuse (5 A), Sunroof Fuse (20 A)

TRK REL Relay 3

--

Rear Compartment Lid Release Actuator

ELC Relay 4

--

Automatic Level Control Compressor

PWR SEAT Circuit Breaker 5

25 A

Seat Switches, Lumbar Switches (w/W01), Memory Seat Module (MSM) (w/A43)

ELC Circuit Breaker 6

30 A

ELC Relay, Automatic Level Control Sensor, Automatic Level Control Compressor

CRK Fuse 7

5 A

Body Control Module (SBM), Powertrain Control Module (PCM)

AUXOTLT Fuse 8

25 A

Cigar Lighter (w/D07 or w/W01), Rear Cigar Lighter (w/D07 or w/W01), Accessory Power Receptacle (w/o D07 or W01)

PCM/CRU Fuse 9

10 A

Instrument Cluster, Powertrain Control Module (PCM), Theft Deterrent Module

SBM Fuse 10

10 A

Body Control Module (SBM)

RDO/PH Fuse 11

5 A

Cellular Telephone Handset, Radio, Steering Column Fuse (2A)

SUNRF Fuse 12

20 A

Sunroof Control Module

Spare 13

--

Not Used

CD/PH Fuse 14

10 A

Cellular Telephone Handset, Cellular Telephone Module, Compact Disc (CD) Player

DDM Fuse 15

10 A

Driver Door Module (DDM)

Spare 16

--

Not Used

RDO Fuse 17

10 A

Audio Amplifier, Radio

HTDSTL Fuse 18

10 A

LH Heated Seat Module

RDM Fuse 19

10 A

Rear Door Module (RDM)

TRK REL Fuse 20

15 A

Data Link Connector (DLC), Fuel Door Release Actuator, Trunk Lid Release Relay

Spare 21

--

Not Used

C/LTR Fuse 22

15 A

I/P Cigar Lighter

Spare 23

--

Not Used

Spare 24

--

Not Used

HTDSTR Fuse 25

10 A

RH Heated Seat Module

C/LTRR Fuse 26

15 A

RH Rear Door Cigar Lighter

C/LTRL Fuse 27

15 A

LH Rear Door Cigar Lighter

MEM/RFA Fuse 28

10 A

Memory Seat Module (MSM), Remote Function Actuator (RFA) Module, LH Lumbar Switch (w/W01), LH Seat Switch (w/W01)