GM Service Manual Online
For 1990-2009 cars only
Table 1: Fuse Block - Underhood Label Usage (L26/L32)
Table 2: Fuse Block - Underhood Label Usage (LS4)
Table 3: Fuse Block - Underhood C1 (L26/L32)
Table 4: Fuse Block - Underhood C1 (LS4)
Table 5: Fuse Block - Underhood C2 (L26/L32)
Table 6: Fuse Block - Underhood C2 (LS4)
Table 7: Fuse Block - Underhood C3 (L26/L32)
Table 8: Fuse Block - Underhood C3 (LS4)
Table 9: Fuse Block - Underhood C4 (L26/L32)
Table 10: Fuse Block - Underhood C4 (LS4)
Table 11: Fuse Block - I/P - Label Usage
Table 12: Fuse Block - I/P C1
Table 13: Fuse Block - I/P C2

Fuse Block - Underhood - Label (L26/L32)


Object Number: 1539012  Size: LF

Fuse Block - Underhood Label Usage (L26/L32)

No.

Device

Rating

Description

1

LF HI BEAM Fuse

10A

Headlamp - High Beam - Left

2

RF HI BEAM Fuse

10A

Headlamp - High Beam - Right

3

LF LO BEAM Fuse

10A

Headlamp - Low Beam - Left

4

RF LO BEAM Fuse

10A

Headlamp - Low Beam - Right

5

WIPER/WS Fuse

25A

WIPER Relay

6

WASHER/RVC Fuse

15A

Body Control Module (BCM)

7

FOG LPS Fuse

10A

FOG LP Relay

9

SIR Fuse

10A

Inflatable Restraint Sensing and Diagnostic Module (SDM)

10

AUX PWR Fuse

25A

Accessory Power Outlet - Rear and Accessory Power Outlet - Front

11

HORN Fuse

15A

HORN Relay

12

EMISSION Fuse

10A

Evaporative Emission (EVAP) Canister Purge Solenoid, Mass Air Flow (MAF) / Intake Air Temperature (IAT) Sensor, Supercharger Boost Control Solenoid (L32), Secondary Air Injection (AIR) Valve Relay (NU3) and Secondary Air Injection (AIR) Pump Relay (NU3)

13

A/C CLUTCH Fuse

10A

A/C COMP Relay

14

02 SSR Fuse

15A

Heated Oxygen Sensor (HO2S) Sensor 1 and Heated Oxygen Sensor (HO2S) Sensor 2

15

PCM Fuse

10A

CRANK Relay and Powertrain Control Module (PCM)

16

PCM/ETC Fuse

15A

Powertrain Control Module (PCM)

17

ETC Fuse

15A

Throttle Actuator Control (TAC) Module

18

DISPLAY Fuse

10A

Electronic Compass Module (U40), CRUISE SW Fuse, Air Temperature Sensor - Inside and HVAC Control Module

19

ABS SOL Fuse

25A

Electronic Brake Control Module (EBCM)

20

FUEL INJ Fuse

15A

Fuel Injector 1, Fuel Injector 2, Fuel Injector 3, Fuel Injector 4, Fuel Injector 5 and Fuel Injector 6

21

TRANS SOL Fuse

10A

Torque Converter Clutch (TCC) Solenoid Valve, 1-2 Shift Solenoid (1-2 SS) Valve and 2-3 Shift Solenoid (2-3 SS) Valve

22

FUEL PP

15A

FUEL PP Relay

23

ABS Fuse

10A

Steering Angle Sensor (JL4), Yaw and Lateral Acceleration Sensor (JL4) and Electronic Brake Control Module (EBCM)

24

ELEK IGN Fuse

15A

Ignition Control Module (ICM)

26

BATT MAIN 1 Fuse

40A

PK LAMPS, DISPLAYS, CHMSL/BKUP, INT LIGHT, RFA/MOD, RADIO/AMP, ONSTAR/ALDL, HVAC and CANISTER Fuses

27

BATT MAIN 2 Fuse

50A

HTD SEAT, PWR MIRS, TURN/HAZ and DR LK/TRUNK Fuses, PWR SEAT Circuit Breaker and RAP Relay

28

BATT MAIN 3 Fuse

40A

RR DEFOG Relay

29

FAN 1 Fuse

30A

FAN 1 Relay

30

BATT MAIN 4 Fuse

30A

Blower Motor Control Processor

31

ABS MTR Fuse

40A

Electronic Brake Control Module (EBCM)

32

FAN 2 Fuse

30A

FAN 2 and FAN 3 Relays

33

STARTER Fuse

40A

CRANK Relay

34

HI BEAM Relay

--

LF HI BEAM and RF HI BEAM Fuses

35

LO BEAM Relay

--

LF LO BEAM and RF LO BEAM Fuses

36

FOG LP Relay

--

Fog Lamp - LF and Fog Lamp - RF

37

IGN 1 Relay

--

ABS, TRANS SOL, PCM, SIR and DISPLAY Fuses, and A/C COMP Relay

38

A/C COMP Relay

--

A/C Compressor Clutch and A/C CLU Diode

39

HORN Relay

--

Horn Assembly

40

P/TRAIN Relay

--

ETC, ELEK IGN, FUEL INJ, O2 SSR and EMISSION Fuses

41

FUEL PP Relay

--

Fuel Pump and Sender Assembly

42

FAN 1 Relay

--

Cooling Fan - Left

43

FAN 3 Relay

--

Cooling Fan - Right

44

WIPER HI Relay

--

Windshield Wiper Motor

45

WIPER Relay

--

WIPER HI Relay

46

FAN 2 Relay

--

Cooling Fan - Right

48

CRANK Relay

--

Starter

49

SPARE Fuse

10A

--

50

SPARE Fuse

15A

--

51

SPARE Fuse

25A

--

52-54

Not Used

--

--

55

FUSE PULLER

--

--

56

AIR PUMP Fuse

50A

Secondary Air Injection (AIR) Pump Relay (NU3)

Fuse Block - Underhood - Label (LS4)


Object Number: 1574653  Size: LF

Fuse Block - Underhood Label Usage (LS4)

Device

Rating

Description

FUEL/PUMP Fuse

15A

Fuel Pump and Sender Assembly

FUEL/PUMP Fuse

--

FUEL/PUMP Fuse

A/C CMPRSR Relay

--

A/C CMPRSR Relay

BATT 1

50A

PK LAMPS, DISPLAYS, CHMSL/BKUP, INT LIGHT, RFA/MOD, RADIO/AMP, ONSTAR/ALDL, HVAC and CANISTER Fuses

BATT 4

30A

Blower Motor Control Processor

BATT 3

40A

RR DEFOG Relay

BATT 2

50A

HTD SEAT, PWR MIRS, TURN/HAZ and DR LK/TRUNK Fuses, PWR SEAT Circuit Breaker and RAP Relay

HVAC Fuse

10A

HVAC Control Module

AIRBAG/DISPLAY Fuse

10A

Inflatable Restraint Sensing and Diagnostic Module (SDM)

COMPASS Fuse

10A

Electronic Compass Module (U40), CRUISE SW Fuse, Air Temperature Sensor - Inside

STRTR Relay

--

STRTR Fuse

ABS Fuse

10A

Steering Angle Sensor (JL4), Yaw and Lateral Acceleration Sensor (JL4) and Electronic Brake Control Module (EBCM)

ECM/TCM Fuse

15A

ECM and TCM

TRANS Fuse

10A

Torque Converter Clutch (TCC) Solenoid Valve, 1-2 Shift Solenoid (1-2 SS) Valve and 2-3 Shift Solenoid (2-3 SS) Valve and TCM

ABS SOL Fuse

25A

EBCM

ECM IGN Fuse

10A

STRTR Relay and PCM

WSW/RVC Fuse

15A

BCM

FAN1 Fuse

30A

FAN 1 Relay

FAN2 Fuse

30A

FAN 3 Relay

FAN 1 Relay

--

Cooling Fan Left

FAN 2 Relay

--

Cooling Fan Right

FAN 3 Relay

--

Cooling Fan Right

STRTR Fuse

40A

Starter

ABS MTR Fuse

40A

EBCM

PWR/TRN Relay

--

ETC/ECM, INJ1, INJ2, EMISSIONS1, and EMISSIONS2 Fuses

ETC/ECM Fuse

15A

PCM

A/C CMPRSR Fuse

10A

A/C Compressor Clutch

INJ 1 Fuse

20A

Injection Coil 1, Injection Coil 3, Injection Coil 5, Injection Coil 7, Fuel Injector 1, Fuel Injector 3, Fuel Injector 5, Fuel Injector 7

EMISSIONS 1 Fuse

15A

Heated Oxygen Sensor (HO2S) Sensor 1 and Heated Oxygen Sensor (HO2S) Sensor 2 and Evaporative Emissions (EVAP) Canister Purge Solenoid Valve

INJ 2 Fuse

20A

Injection Coil 2, Injection Coil 4, Injection Coil 6, Injection Coil 8, Fuel Injector 2, Fuel Injector 4, Fuel Injector 6, Fuel Injector 8

EMISSIONS 2 Fuse

15A

Mass Air Flow (MAF)/Intake Air Temperature (IAT) Sensor, A/C CMPRSR Relay and Valve Lifter Oil Manifold Assembly

WPR Fuse

25A

Wiper PCB Relay

AUX PWR Fuse

25A

Accessory Power Outlet - Rear and Accessory Power Outlet - Front

LT LO BEAM Fuse

10A

Headlamp - Low Beam - Left

RT LO BEAM Fuse

10A

Headlamp - Low Beam - Right

LT HI BEAM Fuse

10A

Headlamp - High Beam - Left

RT HI BEAM Fuse

10A

Headlamp - High Beam - Right

FOG LAMPS Fuse

10A

Fog Lamp LF and Fog Lamp RF

HORN Fuse

15A

Horn Assembly

Fuse Block - Underhood - Top View (L26/L32)


Object Number: 1243922  Size: LF

Fuse Block - Underhood - Top View (LS4)


Object Number: 1586054  Size: LF

Fuse Block - Underhood - Bottom View (L26/L32)


Object Number: 1243923  Size: LF

Fuse Block - Underhood - Bottom View (LS4)


Object Number: 1586141  Size: LF

Fuse Block - Underhood C1 (L26/L32)


Object Number: 647951  Size: CH

Connector Part Information

    • 15319896
    • 68-Way F Metri-Pack 280 Series, Flexlock (BK)

Pin

Wire Color

Circuit No.

Function

A1

D-GN/WH

465

Fuel Pump Relay Control

A2-A6

--

--

Not Used

A7

PK

239

Ignition 1 Voltage

A8

--

--

Not Used

A9

PK

1039

Ignition 1 Voltage (ABS)

A10

--

--

Not Used

A11

PK

639

Ignition 1 Voltage

A12

--

--

Not Used

B1-B2

--

--

Not Used

B3

BK/WH

451

Ground

B4-B5

--

--

Not Used

B6

YE

1996

Remote Shift Selector Signal (L32)

B7-B8

--

--

Not Used

B9

PK

1339

Ignition 1 Voltage

B10-B12

--

--

Not Used

C1

D-GN

335

Low Speed Cooling Fan Relay Control

C2

--

--

Not Used

C3

BK

2759

Low Reference

C4

--

--

Not Used

C5

OG

1740

Battery Positive Voltage (ABS)

C6-C7

--

--

Not Available

C8-C10

--

--

Not Used

C11

PK

39

Ignition 1 Voltage

C12

--

--

Not Used

D1

PK

439

Ignition 1 Voltage

D2-D4

--

--

Not Used

D5

OG

540

Battery Positive Voltage

D6-D7

--

--

Not Available

D8

GY

2709

5-Volt Reference

D9

PK

439

Ignition 1 Voltage

PK

439

Ignition 1 Voltage

D10

--

--

Not Used

D11

PK

839

Ignition 1 Voltage

PK

839

Ignition 1 Voltage

D12

--

--

Not Used

E1

PU

6

Starter Solenoid Crank Voltage

E2

WH

17

Stop Lamp Switch Signal

WH

17

Stop Lamp Switch Signal

E3

YE/BK

625

Starter Enable Relay Control

E4-E5

--

--

Not Used

E6

D-GN

59

A/C Compressor Clutch Supply Voltage

E7

BK

1050

Ground

E8

PK

339

Ignition 1 Voltage

PK

339

Ignition 1 Voltage

E9-E10

--

--

Not Used

E11

D-GN

890

Fuel Tank Pressure Sensor Signal

E12

--

--

Not Used

F1

D-BU

473

High Speed Cooling Fan Relay Control

F2

WH

17

Stop Lamp Switch Signal (ABS)

F3

GY

1884

Cruise Control Switch Signal

F4

WH

1310

EVAP Canister Vent Solenoid Control

F5

PU

1589

Fuel Level Sensor Signal

F6

D-GN/WH

459

A/C Compressor Clutch Relay Control

F7

--

--

Not Used

F8

PK

339

Ignition 1 Voltage (L32, NU3)

F9

BN

1141

Ignition 3 Voltage

F10

--

--

Not Used

F11

D-GN

389

Vehicle Speed Signal

D-GN

389

Vehicle Speed Signal

F12

BN

5069

P/Train Relay Control

Fuse Block - Underhood C1 (LS4)


Object Number: 1581655  Size: CH

Connector Part Information

    • 15477822
    • 56-Way F GT 150 280 Metri-Pack 800 Series (BK)

Pin

Wire Color

Circuit No.

Function

A1

D-GN/WH

465

Fuel Pump Relay Control

A2-A4

--

--

Not Used

A5

PK/BK

5293

Ignition 1 Voltage

A6

BN

5069

PWR/TRN Relay Control

A7

PK/BK

5294

Ignition 1 Voltage

A8

PK/BK

5294

Ignition 1 Voltage

B1

PK/BK

5290

Ignition 1 Voltage

B2

PK/BK

5291

Ignition 1 Voltage

B3

PK/BK

5293

Ignition 1 Voltage

PK/BK

5293

Ignition 1 Voltage

B4

PK/BK

5292

Ignition 1 Voltage

B5

--

--

Not Used

C1

D-GN/WH

459

A/C Compressor Clutch Relay Control

C2

BK/BK

451

Ground

C3

--

--

Not Used

C4

PU

PU

Fuel Level Sensor Signal

C5

WH

WH

EVAP Canister Vent Solenoid Control

C6

YE

YE

Remote Shift Selector Signal

C7

D-BU

D-BU

High Speed Cooling Fan Relay Control

C8

--

--

Not Used

D1

D-GN

D-GN

A/C Compressor Clutch Supply Control

D2-D5

--

--

Not Used

E1-E2

--

--

Not Used

F1

PU

6

Starter Solenoid Crank Voltage

F2

RD

1442

Battery Positive Voltage

G1

WH

17

Stop Lamp Switch Signal

WH

17

Stop Lamp Switch Signal

G2

OG

540

Battery Positive Voltage

OG

540

Battery Positive Voltage

G3

OG

1740

Battery Positive Voltage

G4

--

--

Not Used

G5

D-GN

389

Vehicle Speed Signal

H1

GY

2709

5-Volt Reference

H2

WH

17

Stop Lamp Switch Signal

H3-H5

--

--

Not Used

H6

D-GN

335

Low Speed Cooling Fan Relay Control

H7

BN

1141

Ignition 3 Voltage

H8

BN

1141

Ignition 3 Voltage

J1

YE/BK

625

Starter Enable Relay Control

J2

PK

1339

Ignition 1 Voltage

PK

1339

Ignition 1 Voltage

J3

PK

439

Ignition 1 Voltage

J4-J5

--

--

Not Used

K1

PK

1039

Ignition 1 Voltage

K2

BK

2759

Low Reference

K3-K7

--

--

Not Used

K8

D-GN

890

Fuel Tank Pressure Sensor Signal

Fuse Block - Underhood C2 (L26/L32)


Object Number: 684889  Size: CH

Connector Part Information

    • 15319895
    • 68-Way F Metri-Pack 280 Series, Flexlock (GY)

Pin

Wire Color

Circuit No.

Function

A1

--

--

Not Used

A2

WH

17

Stop Lamp Switch Signal

A3-A4

--

--

Not Used

A5

OG

2540

Battery Positive Voltage

A6

--

--

Not Used

A7

GY

2709

5-Volt Reference

A8

--

--

Not Used

A9

PK

739

Ignition 1 Voltage

A10

--

--

Not Used

A11

PK

1039

Ignition 1 Voltage (JL4)

PK

1039

Ignition 1 Voltage (JL4)

A12

PK

1439

Ignition 1 Voltage

B1

--

--

Not Used

B2

GY

120

Fuel Pump Supply Voltage

B3

BK

2759

Low Reference

B4

YE

1996

Remote Shift Selector Signal (KB7)

B5-B6

--

--

Not Used

B7

YE

1139

Ignition 1 Voltage

B8

--

--

Not Used

B9

PK

739

Ignition 1 Voltage

B10

--

--

Not Used

B11

D-GN

389

Vehicle Speed Signal (US4)

B12

--

--

Not Used

C1-C5

--

--

Not Used

C6-C7

--

--

Not Available

C8-C10

--

--

Not Used

C11

PK/BK

109

Hood Ajar Switch Signal

C12

D-GN/WH

1317

Fog Lamp Relay Control

D1-D4

--

--

Not Used

D5

WH

1310

EVAP Canister Vent Solenoid Control

D6-D7

--

--

Not Available

D8

--

--

Not Used

D9

OG

2440

Battery Positive Voltage

D10

PK/WH

1970

Headlamp Low Beam Relay Control

D11

BN

1141

Ignition 3 Voltage

D12

--

--

Not Used

E1

--

--

Not Used

E2

RD

228

Windshield Washer Pump Control

E3

GY

1884

Cruise Control Switch Signal

E4

L-BU/WH

1314

Left Front Turn Signal Lamp Supply Voltage

E5

PU

1589

Fuel Level Sensor Signal

E6-E10

--

--

Not Used

E11

D-GN

890

Fuel Tank Pressure Sensor Signal

E12

--

--

Not Used

F1

--

--

Not Used

F2

BK

28

Horn Relay Control

F3

BN

9

Park Lamp Supply Voltage

F4

TN

185

Low Washer Fluid Indicator Signal

F5

BK/WH

1969

Headlamp High Beam Relay Control

F6

GY

91

Wiper Relay Control

F7

BK

1650

Ground

F8

--

--

Not Used

F9

D-BU/WH

1315

Right Front Turn Signal Lamp Supply Voltage

F10

BK

860

Wiper High Speed Relay Control

F11

D-GN

95

Windshield Wiper Motor Low Speed

F12

PU

92

Windshield Wiper Motor High Speed

Fuse Block - Underhood C2 (LS4)


Object Number: 1581620  Size: CH

Connector Part Information

    • 15477783
    • 40-Way F GT 150 280 Metri-Pack 800 Series (D-GY)

Pin

Wire Color

Circuit No.

Function

A1

GY

91

Windshield Wiper Switch Signal 2

A2-A4

--

--

Not Used

A5

PK/WH

1970

Headlamp Low Beam Relay Control

A6

D-BU/WH

1315

Right Front Turn Signal Lamp Supply Voltage

B1

BK

1650

Ground

B2-B3

--

--

Not Used

C1

BK

860

Wiper High Speed Relay Control

C2

L-BU/WH

1314

Left Front Turn Signal Lamp Supply Voltage

C3

--

--

Not Used

C4

PK/BK

109

Hood Ajar Switch Signal

C5

RD

228

Windshield Washer Pump Control

C6

BK/WH

1969

Headlamp High Beam Relay Control

D1

PU

92

Windshield Wiper Motor High Speed

D2

OG

2540

Battery Positive Voltage

E1

D-GN

95

Windshield Washer Switch Signal

E2

--

--

Not Used

E3

RD

642

Battery Positive Voltage

RD

642

Battery Positive Voltage

F1

RD

742

Battery Positive Voltage

F2-F3

--

--

Not Used

G1

OG

2440

Battery Positive Voltage

G2

--

--

Not Used

H1

D-GN

389

Vehicle Speed Signal (w/ C67)

H2

BN

1141

Ignition 3 Voltage

H3-H4

--

--

Not Used

H5

D-GN/WH

1317

Fog Lamp Relay Control

H6

--

--

Not Used

J1-J2

--

--

Not Used

J3

BN

9

Tail/License Lamps Supply Voltage

K1-K2

--

--

Not Used

K3

BK

28

Horn Relay Control

K4

TN

185

Low Washer Fluid Indicator Control

K5-K6

--

--

Not Used

Fuse Block - Underhood C3 (L26/L32)


Object Number: 647949  Size: CH

Connector Part Information

    • 15319894
    • 68-Way F Metri-Pack 280 Series, Flexlock (WH)

Pin

Wire Color

Circuit No.

Function

A1

GY

532

Cooling Fan Low Reference

A2

D-GN

29

Horn Control

A3

--

--

Not Used

A4

BK

250

Ground

A5

BK

250

Ground

A6-A8

--

--

Not Used

A9

D-BU/WH

1315

Right Front Turn Signal Lamp Supply Voltage

A10

--

--

Not Used

A11

PU

34

Fog Lamps Supply Voltage

PU

34

Fog Lamps Supply Voltage

A12

--

--

Not Used

B1

--

--

Not Used

B2

RD

228

Windshield Washer Pump Control

B3

BN

9

Park Lamp Supply Voltage

BN

9

Park Lamp Supply Voltage

B4

TN/WH

312

Right Headlamp Low Beam Supply Voltage

B5-B12

--

--

Not Used

C1-C2

--

--

Not Used

C3

BN

9

Park Lamp Supply Voltage

BN

9

Park Lamp Supply Voltage

C4

YE

712

Left Headlamp Low Beam Supply Voltage

C5

--

--

Not Used

C6-C7

--

--

Not Available

C8

--

--

Not Used

C9

L-GN/BK

311

Right Headlamp High Beam Supply Voltage

C10-C11

--

--

Not Used

C12

PK/BK

109

Hood Ajar Switch Signal

D1-D4

--

--

Not Used

D5

TN

185

Low Washer Fluid Indicator Signal

D6-D7

--

--

Not Available

D8

--

--

Not Used

D9

D-GN/WH

711

Left Headlamp High Beam Supply Voltage

D10-D12

--

--

Not Used

E1-E9

--

--

Not Used

E10

WH

504

Cooling Fan Motor Supply Voltage

E11-E12

--

--

Not Used

F1

L-BU

409

Cooling Fan Motor Supply Voltage

F2

--

--

Not Used

F3

L-BU/WH

1314

Left Front Turn Signal Lamp Supply Voltage

F4-F12

--

--

Not Used

Fuse Block - Underhood C3 (LS4)


Object Number: 1581659  Size: CH

Connector Part Information

    • 15477782
    • 40-Way F GT 150 280 Metri-Pack 800 Series (BK)

Pin

Wire Color

Circuit No.

Function

A1

--

--

Not Used

A2

YE

712

Left Headlamp Low Beam Supply Voltage

A3

TN/WH

312

Right Headlamp Low Beam Supply Voltage

A4

--

--

Not Used

A5

D-GN/WH

711

Left Headlamp High Beam Supply Voltage

A6

L-GN/BK

311

Right Headlamp High Beam Supply Voltage

B1-B3

--

--

Not Used

C1

RD

228

Windshield Washer Pump Control

C2-C4

--

--

Not Used

C5

L-BU/WH

1314

Left Front Turn Signal Lamp Supply Voltage

C6

D-BU/WH

1315

Right Front Turn Signal Lamp Supply Voltage

D1

L-BU

409

Cooling Fan Motor Supply Voltage

D2

BK

250

Ground

E1

GY

532

Cooling Fan Motor Supply Voltage

E2

BK

250

Ground

E3

--

--

Not Used

F1

--

--

Not Used

F2

WH

504

Cooling Fan Motor Supply Voltage

F3

--

--

Not Used

G1

PU

34

Fog Lamps Supply Voltage

PU

34

Fog Lamps Supply Voltage

G2

--

--

Not Used

H1-H3

--

--

Not Used

H4

PK/BK

109

Hood Ajar Switch Signal

H5-H6

--

--

Not Used

J1

BN

9

Park Lamp Supply Voltage

BN

9

Park Lamp Supply Voltage

J2

BN

9

Park Lamp Supply Voltage

BN

9

Park Lamp Supply Voltage

J3

D-GN

29

Horn Control

K1-K2

--

--

Not Used

K3

TN

85

Low Washer Fluid Indicator Control

K4-K6

--

--

Not Used

Fuse Block - Underhood C4 (L26/L32)


Object Number: 1243665  Size: CH

Connector Part Information

    • 15447740
    • 8-Way F Metri-Pack 800 Series (GY)

Pin

Wire Color

Circuit No.

Function

A1

RD

742

Battery Positive Voltage

A2

--

--

Not Used

B1

RD

642

Battery Positive Voltage

RD

642

Battery Positive Voltage

B2

--

--

Not Used

C1

RD

242

Battery Positive Voltage

C2

RD

1442

Battery Positive Voltage

D1

OG

1540

Battery Positive Voltage

D2

RD

442

Battery Positive Voltage

Fuse Block - Underhood C4 (LS4)


Object Number: 1581620  Size: CH

Connector Part Information

    • 15477784
    • 40-Way F GT 150 280 Metri-Pack 800 Series (L-GY)

Pin

Wire Color

Circuit No.

Function

A1-A6

--

--

Not Used

B1-B3

--

--

Not Used

C1-C3

--

--

Not Used

C4

YE

1996

Remote Shift Selector Switch

C5

WH

1310

EVAP Canister Vent Solenoid Control

C6

PU

1589

Fuel Level Sensor Signal

D1-D2

--

--

Not Used

E1

--

--

Not Used

E2

GY

120

Fuel Pump Supply Voltage

E3

RD

242

Battery Positive Voltage

F1

RD

442

Battery Positive Voltage

F2-F3

--

--

Not Used

G1-G2

--

--

Not Used

H1

PK

1439

Ignition 1 Voltage

H2-H4

--

--

Not Used

H5

WH

17

Stop Lamp Switch Control

H6

GY

2709

5-Volt Reference

J1

YE

1139

Ignition 1 Voltage

J2

PK

739

Ignition 1 Voltage

J3

PK

1039

Ignition 1 Voltage

PK

1039

Ignition 1 Voltage

K1

PK

239

Ignition 1 Voltage

K2-K4

--

--

Not Used

K5

D-GN

890

Fuel Tank Pressure Sensor Signal

K6

BK

2759

Low Reference

Fuse Block - I/P - Label


Object Number: 1243925  Size: LF

Fuse Block - I/P - Label Usage

Device

Rating

Description

CANISTER Fuse

10A

Evaporative Emission (EVAP) Canister Vent Solenoid

CHMSL/BKUP Fuse

15A

Body Control Module (BCM)

CRUISE SW Fuse

2A

Cruise Control Switch, TAP Shift Switch - Left (KB7) and TAP Shift Switch - Right (KB7)

DISPLAYS Fuse

10A

Head Up Display (HUD) (UV6), Instrument Panel Cluster (IPC) and Driver Information Center (DIC)

DR LK/TRUNK Fuse

15A

Body Control Module (BCM)

HTD SEAT Fuse

20A

Heated Seat Relay - Driver (KA1) and Heated Seat Relay - Front Passenger (KA1)

HVAC Fuse

10A

HVAC Control Module

INT LIGHT Fuse

10A

Body Control Module (BCM)

ONSTAR/ALDL Fuse

10A

Vehicle Communication Interface Module (VCIM) (UE1) and Data Link Connector (DLC)

PK LAMPS Fuse

10A

PK LP Relay

PK LP Relay

--

Marker Lamp - LF, Marker Lamp - RF, Park/Turn Signal Lamp - LF, Park/Turn Signal Lamp - RF, Tail/Stop and Turn Signal Lamp - Left, Tail/Stop and Turn Signal Lamp - Right, Marker Lamp - LR, Marker Lamp - RR, Tail Lamp - Left, Tail Lamp - Right, License Lamp - Left and License Lamp - Right

PWR MIRS Fuse

10A

Outside Rearview Mirror Switch

PWR SEAT Circuit Breaker

25A

Seat Adjuster Switch - Driver (AG1) and Seat Lumbar Switch - Driver (AL9)

PWR WDO Circuit Breaker

25A

Window Switch - Driver, and Window Switch - Front Passenger

RADIO/AMP Fuse

25A

Radio and Audio Amplifier (U87)

RAP Relay

--

SUN ROOF Fuse and PWR WDO Circuit Breaker

RFA/MOD Fuse

10A

Remote Control Door Lock Receiver (RCDLR) and Digital Radio Receiver (U2K)

RR DEFOG Relay

--

Rear Window Defogger Grid

SPRING COIL 2 Fuse

2A

Steering Wheel Controls - Left (UK3), and Steering Wheel Controls - Right (UK3)

SUN ROOF Fuse

20A

Sunroof Module (CF5)

TURN/HAZ Fuse

20A

Body Control Module (BCM)

Fuse Block - I/P Top View


Object Number: 1243926  Size: LF

Fuse Block - I/P Bottom View


Object Number: 1243927  Size: LF

Fuse Block - I/P C1


Object Number: 684967  Size: CH

Connector Part Information

    • 15356602
    • 68-Way F Metri-Pack 280 Series, Flexlock (BK)

Pin

Wire Color

Circuit No.

Function

A1

PU

1589

Fuel Level Sensor Signal

A2

YE

1860

Front Center Speaker Output (+) (U87)

A3

GY/BK

2334

Amplifier Present Signal (U87) (w/o US4)

A4

PU

2232

Radio On Signal

A5

TN

927

Amplifier Control (U87)

A6

YE

1139

Ignition 1 Voltage

A7

WH

1310

EVAP Canister Vent Solenoid Control

A8

--

--

Not Used

A9

BK/WH

351

Ground

BK/WH

351

Ground (UE1)

A10

--

--

Not Used

A11

BN/WH

199

Left Rear Speaker Output (+) (UW6)

BN/WH

199

Left Rear Low Level Audio Signal (+) (U87)

A12

GY

118

Left Front Speaker Output (-) (UW6)

GY

118

Left Front Low Level Audio Signal (-) (U87)

B1

BK

2759

Low Reference

B2

L-BU

1960

Front Center Speaker Output (-) (U87)

B3

D-BU

1778

Compass Clock Signal

B4

--

--

Not Used

B5

GY

120

Fuel Pump Supply Voltage

B6

BN

1779

Compass Data Signal

B7

--

--

Not Used

B8

D-BU

46

Right Rear Speaker Output (+) (UW6)

D-BU

46

Right Rear Low Level Audio Signal (+) (U87)

B9

TN

201

Left Front Speaker Output (+) (UW6)

TN

201

Left Front Low Level Audio Signal (+) (U87)

B10

OG

2340

Battery Positive Voltage

OG

2340

Battery Positive Voltage (UE1)

B11

--

--

Not Used

B12

L-GN

200

Right Front Speaker Output (+) (UW6)

L-GN

200

Right Front Low Level Audio Signal (+) (U87)

C1

D-GN

890

Fuel Tank Pressure Sensor Signal

C2

WH

1080

Park Lamp Relay Control

C3

--

--

Not Used

C4

GY

8

Instrument Panel Lamp Supply Voltage

C5

OG

1240

Battery Positive Voltage

C6-C7

--

--

Not Available

C8

L-BU

115

Right Rear Speaker Output (-) (UW6)

L-BU

115

Right Rear Low Level Audio Signal (-) (U87)

C9

GY/BK

690

Courtesy Lamp Supply Voltage

GY/BK

690

Courtesy Lamp Supply Voltage

C10

D-GN

117

Right Front Speaker Output (-) (UW6)

D-GN

117

Right Front Low Level Audio Signal (-) (U87)

C11

--

--

Not Used

C12

YE

116

Left Rear Speaker Output (-) (UW6)

YE

116

Left Rear Low Level Audio Signal (-) (U87)

D1

GY

2709

5-Volt Reference

D2-D3

--

--

Not Used

D4

D-BU

1128

SDM Class 2 Serial Data

D5

--

--

Not Used

D6-D7

--

--

Not Available

D8

OG

5240

Battery Positive Voltage (UV6)

D9

GY/BK

690

Courtesy Lamp Supply Voltage

D10

OG

1732

Inadvertent Power Courtesy Lamp

OG

1732

Inadvertent Power Courtesy Lamp

D11

PK

739

Ignition 1 Voltage

PK

739

Ignition 1 Voltage (CJ2)

D12

BK

707

RAP Relay Control

E1

--

--

Not Used

E2

BN

9

Park Lamp Supply Voltage

E3

GY/BK

1458

Instrument Panel Lamp Supply Voltage (UK3)

E4

--

--

Not Used

E5

OG

340

Battery Positive Voltage

E6

OG

240

Battery Positive Voltage

E7

--

--

Not Used

E8

OG

5240

Battery Positive Voltage

OG

5240

Battery Positive Voltage

E9-E11

--

--

Not Used

E12

PK

1539

Ignition 1 Voltage

F1-F2

--

--

Not Used

F3

RD

742

Battery Positive Voltage

F4

--

--

Not Used

F5

RD

642

Battery Positive Voltage

F6

OG

1040

Battery Positive Voltage

F7

RD

242

Battery Positive Voltage

F8

--

--

Not Used

F9

OG

2040

Battery Positive Voltage

F10

RD

642

Battery Positive Voltage

F11-F12

--

--

Not Used

Fuse Block - I/P C2


Object Number: 697044  Size: CH

Connector Part Information

    • 15356603
    • 68-Way F Metri-Pack 280 Series, Flexlock (GY)

Pin

Wire Color

Circuit No.

Function

A1

GY

118

Left Front Speaker Output (-) (UW6)

GY

118

Left Front Speaker Output (-) (UW6)

D-GN

1947

Left Front Low Level Audio Signal (-) (U87)

A2

BN

199

Left Rear Speaker Output (+) (UW6)

BN/WH

599

Left Rear Low Level Audio Signal (+) (U87)

A3

OG

2840

Battery Positive Voltage

A4

BK/WH

351

Ground (U87)

BK/WH

351

Ground (U2K)

A5

OG

440

Battery Positive Voltage

A6

WH

1310

EVAP Canister Vent Solenoid Control

A7

YE

1139

Ignition 1 Voltage

A8

TN

927

Amplifier Control (U87)

A9

PU

2232

Radio On Signal

PU

2232

Radio On Signal (U87)

A10

GY/BK

2334

Amplifier Present Signal (U87)

A11

YE

1860

Front Center Speaker Output (+) (U87)

A12

PU/WH

1589

Fuel Level Sensor Signal

B1

L-GN

200

Right Front Speaker Output (+) (UW6)

L-GN

200

Right Front Speaker Output (+) (UW6)

L-GN/WH

512

Right Front Low Level Audio Signal (+) (U87)

B2-B3

--

--

Not Used

B4

TN

201

Left Front Speaker Output (+) (UW6)

TN

201

Left Front Speaker Output (+) (UW6)

TN

511

Left Front Low Level Audio Signal (+) (U87)

B5

D-BU

46

Right Rear Speaker Output (+) (UW6)

D-BU

546

Right Rear Low Level Audio Signal (+) (U87)

B6

--

--

Not Used

B7

BN

1779

Compass Data Signal (U40)

B8

GY

120

Fuel Pump Supply Voltage

B9

--

--

Not Used

B10

D-BU

1778

Compass Clock Signal (U40)

B11

L-BU

1960

Front Center Speaker Output (-) (U87)

B12

BK

2759

Low Reference

C1

YE

116

Left Rear Speaker Output (-) (UW6)

BN

1999

Left Rear Low Level Audio Signal (-) (U87)

C2

--

--

Not Used

C3

D-GN

117

Right Front Speaker Output (-) (UW6)

D-GN

117

Right Front Speaker Output (-) (UW6)

L-GN

1948

Right Front Low Level Audio Signal (-) (U87)

C4

GY/BK

690

Courtesy Lamp Supply Voltage

C5

L-BU

115

Right Rear Speaker Output (-) (UW6)

BK

1946

Right Rear Low Level Audio Signal (-) (U87)

C6-C7

--

--

Not Available

C8

--

--

Not Used

C9

GY

8

Instrument Panel Lamp Supply Voltage

C10-C11

--

--

Not Used

C12

D-GN

890

Fuel Tank Pressure Sensor Signal

D1

--

--

Not Used

D2

PK

739

Ignition 1 Voltage (U40)

D3

OG

1732

Inadvertent Power Courtesy Lamp

OG

1732

Inadvertent Power Courtesy Lamp

D4-D5

--

--

Not Used

D6-D7

--

--

Not Available

D8

--

--

Not Used

D9

D-BU

1128

SDM Class 2 Serial Data

D-BU

1128

Class 2 Serial Data (U2K)

D10

OG

1140

Battery Positive Voltage

D11

WH

193

Rear Defog Relay Control

WH

193

Rear Defog Relay Control (U40)

D12

GY

2709

5-Volt Reference

E1

--

--

Not Used

E2

YE

143

Accessory Voltage

E3

--

--

Not Used

E4

OG

2040

Battery Positive Voltage (U87)

E5-E8

--

--

Not Used

E9

OG

1440

Battery Positive Voltage (KA1)

E10

--

--

Not Used

E11

BN

9

Park Lamp Supply Voltage

E12

OG

840

Battery Positive Voltage

F1

YE

643

Accessory Voltage

F2

YE

143

Accessory Voltage

F3-F4

--

--

Not Used

F5

OG

640

Battery Positive Voltage

OG

640

Battery Positive Voltage (U2K)

F6-F8

--

--

Not Used

F9

OG

1440

Battery Positive Voltage (KA1)

F10

--

--

Not Used

F11

BK/D-GN

1927

Rear Window Defog Control Module Supply Voltage

F12

--

--

Not Used