GM Service Manual Online
For 1990-2009 cars only

Underhood Fuse Block


Object Number: 144159  Size: SF

Fuse/Circuit Breaker/Fuse Relay

Rating

Description

ACCY Fuse 2

10A

Cellular Telephone Docking Station, Outside Moisture Sensor, Windshield Wiper/Washer Switch

WSW Fuse 3

30A

Windshield Wiper Motor

HDLOBML Fuse 5

15A

LH Low Beam Headlamp

HDLOBMR Fuse 6

15A

RH Low Beam Headlamp

I/P Fuse 7

15A

Ignition Key Cylinder Lamp, Instrument Panel Cluster, Instrument Panel Integration Module (IPM),Theft Deterrent Module

PCM BATT Fuse 8

10A

Powertrain Control Module

HDHIBMR Fuse 9

10A

RH High Beam Headlamp

HDHIBML Fuse 10

10A

LH High Beam Headlamp

IGN 1 Fuse 11

10A

Automatic Transaxle, Evaporative Emission (EVAP) Canister Purge Solenoid Valve, Exhaust Gas Recirculation (EGR) Valve, Mass Air Flow (MAF) Sensor, Power Steering Pressure (PSP) Switch, Powertrain Control Module (PCM)

CR CONT Fuse 14

10A

Cruise Control Module

OXY SEN A Fuse 15

10A

Heated Oxygen Sensor (H02S) Bank 1 Sensor 2 (Early Production Only), Heated Oxygen Sensor (HO2S) Bank 2 Sensor 1

INJR2 Fuse 16

10A

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

PCM IGN Fuse 18

10A

Powertrain Control Module (PCM)

DIS Fuse 19

20A

Ignition Control (IC) Module

OXY SENS B Fuse 20

10A

Heated Oxygen Sensor (H02S) Bank 1 Sensor 3 (Early Production Only), Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1

INJR1 Fuse 21

10A

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

AUX PWR Fuse 22

20A

Auxiliary Power Outlet

C/LTR Fuse 23

20A

Cigar Lighter, Rear Cigar Lighter

FOG/DRL Fuse 24

15A

DRL Relay 30, FOG LP Relay 29

HORN Fuse 25

15A

HORN Relay 31

AC CLU Fuse 26

15A

A/C CLU Relay 32

HDLP HI BM Relay 27

--

HDHIBML Fuse 10, HDHIBMR Fuse 9

HDLP LO BM Relay 28

--

HDLOBML Fuse 5, HDLOBMR Fuse 6

FOG LP Relay 29

--

LH Front Fog Lamp, RH Front Fog Lamp

DRL Relay 30

--

HDHIBML Fuse 10, HDHIBMR Fuse 9, LH High Beam Headlamp, RH High Beam Headlamp

HORN Relay 31

--

RH Horn A Note, LH Horn F Note

A/C CLU Relay 32

--

A/C Clutch

ACCY Relay 34

--

ACCY Fuse 2, WSW Fuse 3

START 2 Relay 35

--

Starter Solenoid

START 1 Relay 36

--

START 2 Relay 35

COOLFAN 2 Relay 37

--

RH Cooling Fan Motor

IGN 1 Relay 38

--

INJR1 Fuse 21, INJR2 Fuse 16, OXY SEN A Fuse, OXY SEN B Fuse, DIS Fuse, CR CONT Fuse, IGN 1 Fuse, PCM IGN Fuse

COOL FAN S/P Relay 39

--

LH Cooling Fan Motor, COOL FAN 1 Relay

COOLFAN 1 Relay 40

--

LH Cooling Fan Motor, COOL FAN S/P Relay

START Circuit Breaker 41

30A

START 1 Relay 36

EXPORT BRK Fuse 43

30A

Power Brake Booster Pump Relay (RH Drive)

ABS SOL Fuse 44

30A

Electronic Brake and Traction Control Module (EBTCM)

ABS MOT Fuse 45

40A

Electronic Brake and Traction Control Module (EBTCM)

COOL FAN 2 Fuse 46

30A

COOL FAN 2 Relay 37

COOL FAN 1 Fuse 47

30A

COOL FAN 1 Relay 40, COOLFAN S/P Relay 39

Rear Fuse Block


Object Number: 144158  Size: SF

Fuse/Circuit Breaker/Relay

Rating

Description

F/PMP Fuse 1

20A

F/PMP Relay 39

HVAC BLO Fuse 2

30A

Blower Control Module

MEM T&T Fuse 3

10A

LH Adaptive Lumbar Module, RH Adaptive Lumbar Module, LH Lumbar Switch, Memory Seat Module (MSM), LH Seat Switch, Steering Column Tilt/Telescoping Module

ALDL Fuse 4

10A

Data Link Connector (DLC), Valet Switch

DRVMDL Fuse 5

10A

LH Front Door Module (LFDM)

HTDST LR Fuse 6

10A

Left Rear Heated Seat Module

PWR T&T Fuse 7

30A

Steering Column Tilt/Telescoping Module

SIR Fuse 8

15A

Driver Inflatable Restraint Side Impact Sensing Module (SISM), Inflatable Restraint Sensing and Diagnostic Module (SDM), Passenger Inflatable Restraint Side Impact Sensing Module (SISM)

LP PK R Fuse 10

15A

RH Front Side Marker Lamp, RH Park/Turn Lamp, RH Tail Lamps, RH Park/Turn Lamp, Rear Compartment Relay Center

VENT SOL Fuse 11

10A

Evaporative Emission (EVAP) Canister Purge Vent Valve

IGN 1 Fuse 12

10A

ABS/TCC Switch, Cruise Switch, Instrument Panel Cluster, Rear Compartment Relay Center (w/ UY4), Rear Integration Module (RIM), Turn Signal Switch

LP PK L Fuse 13

15A

LH Front Side Marker Lamp, LH Park/Turn Lamp, LH Tail Lamps, LH Park/Turn Lamp, Rear Compartment Relay Center

DIMR Fuse 14

10A

Dash Integration Module, Hazard Switch Assembly, Multi-function Lever, License Lamps, Underhood Lamp

NAV Fuse 15 (w/ UY4)

10A

Navigation Data Processor, Navigation Display Module, Rear Compartment Relay Center

HTDST LF Fuse 16

10A

LH Heated Seat Module

EXPORT LGT Fuse 17 (Export)

15A

STANDING LP Relay, POSN LP L Relay, POSN LR R Relay, RR FOG LP Relay, DRL Relay

RRDR MDL Fuse 18

10A

LH Rear Door Module (LRDM), RH Rear Door Module (RRDM)

STOP LP Fuse 19

15A

Stoplamp/BTSI Switch

NSBU Fuse 20

10A

PARK Relay 44, REVERSE Relay 45

AUDIO Fuse 21

15A

Cellular Telephone Module, Compact Disc (CD) Changer, Radio

RAP Fuse 22

20A

RAP Relay 46

PASSMDL Fuse 25

10A

RH Front Door Module (RFDM)

BODY Fuse 26

15A

F/TNKDR REL Relay 50, TRK REL Relay 52

INT LP Fuse 27

10A

INT LP Relay 51

RR BLO Fuse 28

10A

RR BLO Relay 47

IGN SW Fuse 29

15A

Ignition Switch, Dash Integration Module (DIM), Rear Integration Module (RIM), Remote Keyless Entry (RKE) Module

HTDST RF Fuse 31

10A

Right Front Heated Seat Module

CVRTD Fuse 32

10A

Automatic Level Control Module, Continuously Variable Road Sensing Suspension (CVRSS) Module, DAMPER Relay 48

HVAC Fuse 33

10A

Air Inlet Actuator, Driver Air Mix Actuator, Inside Air Temperature Sensor, Mode Actuator, Passenger Air Mix Actuator, PRNDL Lamp, Rear Blower Switch, Rear Mode Actuator

IGN 3 RR Fuse 34

10A

LH Adaptive Lumbar Module, RH Adaptive Lumbar Module, Automatic Day/Night Mirror, Automatic Level Control Module, Continuously Variable Road Sensing Suspension (CVRSS) Module, Instrument Panel Integration Module (IPM), LH Front Heated Seat Module, LH Rear Heated Seat Module, RH Front Heated Seat Module, RH Rear Heated Seat Module

ABS Fuse 35

10A

Electronic Brake and Traction Control Module (EBTCM)

TSIG/HAZ Fuse 36

15A

Hazard Switch Assembly

HTDST RR Fuse 37

10A

RH Rear Heated Seat Module

DIM Fuse 38

10A

Dash Integration Module (DIM), Battery Voltage Sensor

F/PMP Relay 39

--

Fuel Tank Unit, Powertrain Control Module (PCM)

PRK LP Relay 40

--

DIMR Fuse 14, LP PK L Fuse 13, LP PK R Fuse 10

IGN 1 Relay 41

--

IGN 1 Fuse 12, SIR Fuse 8, VENT SOL Fuse 11

PARK BRK A Relay 42

--

Park Brake Release Solenoid

PARK BRK B Relay 43

--

Park Brake Release Solenoid

PARK Relay 44

--

Stoplamp/BTSI Switch

REVERSE Relay 45

--

LH Backup Lamp, RH Backup Lamp

RAP Relay 46

--

Sunroof Control Module (w/ CF5), NAVIGATION Relay (w/ UY4)

RR BLO Relay 47

--

Rear Blower Motor

DAMPER Relay 48

--

Continuously Variable Road Sensing Suspension (CRVSS) Module

IGN 3 Relay 49

--

ABS Fuse 35, HVAC Fuse 33, IGN 3 RR Fuse 34

F/TNKDR REL Relay 50

--

Fuel Door Release Solenoid

INT LP Relay 51

--

LH Foot Well Courtesy Lamp, LH Front Door Courtesy Lamp, RH Front Door Courtesy Lamp, IP Compartment Lamp, LH Rear Door Courtesy Lamp, RH Rear Door Courtesy Lamp, Overhead Console, LH Reading Lamp, RH Reading Lamp, RH Footwell Courtesy Lamp, Rear Compartment Lamp, LH Vanity Lamp, RH Vanity Lamp, Rear Integration Module (RIM)

TRK REL Relay 52

--

Rear Compartment Lid Release Solenoid

FRT CTSY Relay 53

--

Ground

RR CTSY Relay 54

--

Ground

ELC Relay 55

--

Automatic Level Control Compressor

PWR SEAT Circuit Breaker 56

30A

LH Lumbar Switch, RH Lumbar Switch, Memory Seat Module (MSM) LH Seat Switch, RH Seat Switch

PWR WDO Circuit Breaker 57

30A

LH Front Door Module, RH Front Door Module, LH Rear Door Module, RH Rear Door Module

CIGAR Relay 58

--

AUX PWR Fuse 22 (Underhood Fuse Block), C/LTR Fuse 23 (Underhood Fuse Block)

RR DEFOG Relay 59

--

Rear Defogger

PARK BRK Fuse 60

20A

PARK BRK A Relay 42, PARK BRK B Relay 43

RR DEFOG Fuse 61

40A

RR DEFOG Relay 59

AUDIO AMP Fuse 63

30A

Radio Amplifier

ELC Fuse 64

30A

ELC Relay 55, Automatic Level Control Compressor

CIGAR Fuse 65

40A

CIGAR Relay 58