GM Service Manual Online
For 1990-2009 cars only
Table 1: Fuse Block - Underhood (4.2L), Label Usage
Table 2: Fuse Block - Underhood (5.3L), Label Usage
Table 3: Fuse Block - Underhood C1 (4.2L)
Table 4: Fuse Block - Underhood C1 (5.3L)
Table 5: Fuse Block - Underhood C2
Table 6: Fuse Block - Underhood C3
Table 7: Fuse Block - Underhood C4
Table 8: Fuse Block - Underhood C5
Table 9: Fuse Block - Underhood C6
Table 10: Fuse Block - Underhood C7
Table 11: Fuse Block - Rear (SWB), Label Usage
Table 12: Fuse Block - Rear (LWB), Label Usage
Table 13: Fuse Block - Rear C1
Table 14: Fuse Block - Rear C2
Table 15: Fuse Block - Rear C3
Table 16: Fuse Block - Rear C4

Fuse Block - Underhood (4.2L), Label


Object Number: 1326473  Size: MF

Fuse Block - Underhood (4.2L), Label Usage

No.

Device

Rating

Description

1

ECAS Fuse

30A

Not Used

2

HI HDLP-RT Fuse

10A

Right High Beam Headlamp

3

LOW HDLP-RT Fuse

10A

Right Low Beam Headlamp - Daytime Running Lamp

4

TRLR B/U Fuse

10A

Trailer Connector

5

HI HDLP-LT Fuse

10A

Left High Beam Headlamp

6

LOW HDLP-LT Fuse

10A

Left Low Beam Headlamp - Daytime Running Lamp

7

WASH Fuse

20A

Not Used

8

ATC Fuse

30A

Transfer Case Shift Control Module, Transfer Case Encoder Motor

10

PCM B Fuse

20A

F/PMP Relay, Powertrain Control Module (PCM)

11

FOG LP Fuse

15A

FOG LP Relay

12

ST/LP Fuse

25A

Stop Lamp Switch

13

CIGAR Fuse

20A

Data Link Connector (DLC), Cigar Lighter

14

COILS Fuse

10A

HDLP-HI Relay, High Beam Headlamps

16

TBC IGN1 Fuse

10A

Body Control Module (BCM)

17

CRANK Fuse

10A

Powertrain Control Module (PCM)

18

SIR Fuse

10A

Inflatable Restraint Sensing and Diagnostic Module SDM)

19

ELEK BRK Fuse

30A

Trailer Brake Wiring

20

Fan Fuse

10A

FAN Relay - Fan Driver Module

21

HORN Fuse

15A

HORN Relay

22

IGN E Fuse

10A

IGN 1 Relay, A/C Relay, Park/Neutral Position (PNP) Switch, Stop Lamp Switch, Traction Control Switch, Instrument Panel Cluster, Turn Signal/Multifunction Switch, Inside Rearview Mirror

23

TAC Fuse

10A

Throttle Actuator Control (TAC) Module

24

IPC/DIC Fuse

10A

Instrument Panel Cluster (IPC)

25

BTSI Fuse

10A

Stop Lamp Switch, A/T Shift Lock Actuator

26

ENG I Fuse

10A

EVAP Canister Purge Solenoid, EVAP Canister Vent Solenoid

27

BACK UP Fuse

15A

Park/Neutral Position (PNP) Switch

28

PCM I

15A

Powertrain Control Module (PCM), Fuel Injectors, Ignition Coils

29

O2 Fuse

10A

Heated Oxygen Sensors

30

A/C Fuse

10A

A/C Relay

31

TBC I Fuse

10A

Body Control Module (BCM), and (BAE Only) Theft Deterrent Alarm and Theft Deterrent Module

32

TRAILER Fuse

30A

Trailer Connector

33

ABS Fuse

60A

Electronic Brake Control Module (EBCM)

34

IGN A Fuse

40A

Starter Relay, Ignition Switch

35

BLOWER Fuse

40A

Blower Motor Resistor Assembly (CJ3), Blower Motor Control Processor (CJ2)

36

IGN B Fuse

40A

Ignition Switch

37

HDLP WASH Relay

--

Not Used

38

REAR WASH Relay

--

Rear Window Washer Fluid Pump

39

FOG LP Relay

--

Front Fog Lamps

40

HORN Relay

--

Horns

41

F/PMP Relay

--

Fuel Pump

42

W/S WASH Relay

--

Windshield Washer Fluid Pump

43

HDLP-HI Relay

--

Body Control Module (BCM)

44

A/C Relay

--

Headlamp - High Beam - Left

45

FAN Relay

--

Engine Cooling Fan

46

HDM Relay

--

Low Beam Headlamps - Daytime Running Lamps

47

STARTER Relay

--

Starter Solenoid

48

I/P BATT Fuse

125A

Fuse Block - Rear

49

EAP Relay

--

Electronic Adjustable Pedals (JF4)

50

TRL R TRN Fuse

10A

Trailer Connector

51

TRL L TRN Fuse

10A

Trailer Connector

52

FLASH Fuse

25A

Turn Signal/Hazard Flasher Module

53

EAP Fuse

15A

EAP Relay (JF4)

54

AIR SOL Fuse

15A

AIR SOL Relay

55

AIR SOL Relay

--

Not Used

56

AIR Fuse

60A

Not Used

Fuse Block - Underhood (5.3L), Label


Object Number: 1326476  Size: MF

Fuse Block - Underhood (5.3L), Label Usage

No.

Device

Rating

Description

1

ECAS Fuse

30A

Not Used

2

HI HDLP-RT Fuse

10A

Right High Beam Headlamp

3

LOW HDLP-RT Fuse

10A

Right Low Beam Headlamp - Daytime Running Lamp

4

TRLR B/U Fuse

10A

Trailer Connector

5

HI HDLP-LT Fuse

10A

Left High Beam Headlamp

6

LOW HDLP-LT Fuse

10A

Left Low Beam Headlamp - Daytime Running Lamp

7

WASH Fuse

20A

Not Used

8

ATC Fuse

30A

Transfer Case Shift Control Module, Transfer Case Encoder Motor

9

W/S WASH Fuse

15A

W/S WASH Relay

10

PCM B Fuse

20A

F/PMP Relay, Powertrain Control Module (PCM)

11

FOG LAMP Fuse

15A

FOG LP Relay

12

ST/LP Fuse

25A

Stop Lamp Switch

13

CIGAR Fuse

20A

Data Link Connector (DLC), Cigar Lighter

14

COILS Fuse

10A

HDLP-HI Relay, High Beam Headlamps

15

CANISTER VENT Fuse

10A

EVAP Canister Vent Solenoid

16

TBC IGN1 Fuse

10A

Body Control Module (BCM)

17

CRANK Fuse

10A

Powertrain Control Module

18

SIR Fuse

10A

Inflatable Restraint Sensing and Diagnostic Module (SDM)

19

ELEK BRK Fuse

30A

Trailer Brake Wiring

20

FAN Fuse

10A

FAN Relay - Fan Driver Module

21

HORN Fuse

15A

HORN Relay

22

IGN E Fuse

10A

IGN 1 Relay, A/C Relay, Park/Neutral Position (PNP) Switch, Stop Lamp Switch, Traction Control Switch, Instrument Panel Cluster, Turn Signal/Multifunction Switch, Inside Rearview Mirror

23

TAC Fuse

15A

Throttle Actuator Control (TAC) Module

24

IPC/DIC Fuse

10A

Instrument Panel Cluster (IPC)

25

BTSI Fuse

10A

Stop Lamp Switch, A/T Shift Lock Actuator

26

ENG I Fuse

10A

EVAP Canister Purge Solenoid, EVAP Canister Vent Solenoid

27

BACK UP Fuse

15A

Park/Neutral Position (PNP) Switch

28

PCM I

15A

Powertrain Control Module (PCM), Fuel Injectors, Ignition Coils

30

A/C Fuse

10A

A/C Relay

31

TBC I Fuse

10A

Body Control Module (BCM), and (BAE Only) Theft Deterrent Alarm and Theft Deterrent Module

32

TRAILER

30A

Trailer Connector

33

ABS Fuse

60A

Electronic Brake Control Module (EBCM)

34

IGN A Fuse

40A

Starter Relay, Ignition Switch

35

BLOWER Fuse

40A

Blower Motor Resistor Assembly (CJ3), Blower Motor Control Processor (CJ2)

36

IGN B Fuse

40A

Ignition Switch

37

HDLP WASH Relay

--

Not Used

38

REAR WASH Relay

--

Rear Window Washer Fluid Pump

39

FOG LP Relay

--

Front Fog Lamps

40

HORN Relay

--

Horns

41

F/PMP Relay

--

Fuel Pump

42

W/S WASH Relay

--

Windshield Washer Fluid Pump

43

HDLP-HI Relay

--

Body Control Module (BCM)

44

A/C Relay

--

Headlamp - High Beam - Left

45

FAN Relay

--

Engine Cooling Fan

46

HDM Relay

--

Headlamp Driver Module; Low Beam Headlamps - Daytime Running Lamps

47

STARTER Relay

--

Starter Solenoid

48

I/P BATT Fuse

125A

Fuse Block - Rear

49

EAP Relay

--

Electronic Adjustable Pedals (JF4)

50

TRL R TRN Fuse

10A

Trailer Connector

51

TRL L TRN Fuse

10A

Trailer Connector

52

FLASH Fuse

25A

Turn Signal/Hazard Flasher Module

53

O2 B

15A

HO2S2, Bank 1 and Bank 2

54

O2 A

15A

HO2S1, Bank 1 and Bank 2

55

INJ A

15A

Left Bank Ignition Coils and Fuel Injectors

56

INJ B

15A

Right Bank Ignition Coils and Fuel Injectors

57

EAP

15A

EAP Relay (JF4)

58

IGN 1 Relay

--

INJ A Fuse, INJ B Fuse, and ETC Fuse

Fuse Block - Underhood, Top View (4.2L)


Object Number: 1326484  Size: MF

Fuse Block - Underhood, Top View (5.3L)


Object Number: 1326502  Size: MF

Fuse Block - Underhood, Bottom View


Object Number: 1201561  Size: MF

Fuse Block - Underhood C1 (4.2L)


Object Number: 647955  Size: CH

Connector Part Information

    • 15319897
    • 68-Way F Metri-Pack 280 Series Flexlock (L-GY)

Pin

Wire Color

Circuit No.

Function

A1

--

--

Not Used

A2

PK

839

Ignition 1 Voltage

A3-A4

--

--

Not Used

A5

PK

639

Ignition 1 Voltage

A6-A7

--

--

Not Used

A8

PU

6

Starter Solenoid Crank Voltage

A9

GY

1524

Backup Lamp Signal

A10

YE

1737

Neutral Safety Switch Park/Neutral Signal

A11

D-GN/WH

465

Fuel Pump Relay Control

A12

--

--

Not Used

B1

--

--

Not Used

B2

PK

239

Ignition 1 Voltage

B3-B4

--

--

Not Used

B5

PK

339

Ignition 1 Voltage

B6

L-GN

275

Park Neutral Position Switch Park Signal

B7-B8

--

--

Not Used

B9

WH

1310

EVAP Canister Vent Solenoid Control

B10

OG/BK

463

Requested Torque Signal

B11-B12

--

--

Not Used

C1

--

--

Not Used

C2

PK

539

Ignition 1 Voltage

PK

539

Ignition 1 Voltage

C3-C4

--

--

Not Used

C5

PK

439

Ignition 1 Voltage

PK

439

Ignition 1 Voltage

C8-C9

--

--

Not Used

C10

BK

550

Ground

C11

TN/BK

464

Delivered Torque Signal

C12

--

--

Not Used

D1

--

--

Not Used

D2

PK

1020

Ignition 0 Voltage

D3

BK

350

Ground

BK

350

Ground

D4

--

--

Not Used

D5

PK

439

Ignition 1 Voltage

PK

439

Ignition 1 Voltage

D8-D9

--

--

Not Used

D10

BK

550

Ground

BK

550

Ground

D11-D12

--

--

Not Used

E1-E4

--

--

Not Used

E5

PK

439

Ignition 1 Voltage

PK

439

Ignition 1 Voltage

E6

BK

450

Ground

E7

BK

450

Ground

E8-E9

--

--

Not Used

E10

BK

550

Ground

BK

550

Ground

E11

--

--

Not Used

E12

D-GN

59

A/C Compressor Clutch Supply Voltage

F1-F2

--

--

Not Used

F3

BK

350

Ground

F4

--

--

Not Used

F5

PK

439

Ignition 1 Voltage

PK

439

Ignition 1 Voltage

F6-F9

--

--

Not Used

F10

BK

550

Ground

BK

550

Ground

F11-F12

--

--

Not Used

Fuse Block - Underhood C1 (5.3L)


Object Number: 647955  Size: CH

Connector Part Information

    • 15319897
    • 68-Way F Metri-Pack 280 Series Flexlock (L-GY)

Pin

Wire Color

Circuit No.

Function

A1

--

--

Not Used

A2

PK

1539

Ignition 1 Voltage

PK

1539

Ignition 1 Voltage

A3-A4

--

--

Not Used

A5

PK

639

Ignition 1 Voltage

A6

PU

806

Crank Voltage

A7

OG/BK

463

Requested Torque Signal

A8

PU

6

Starter Solenoid Crank Voltage

A9

GY

1524

Backup Lamp Signal

A10

YE

1737

Neutral Safety Switch Park/Neutral Signal

A11-A12

--

--

Not Used

B1

--

--

Not Used

B2

PK

239

Ignition 1 Voltage

PK

239

Ignition 1 Voltage

B3-B4

--

--

Not Used

B5

PK

339

Ignition 1 Voltage

B6

L-GN

275

Park Neutral Position Switch Park Signal

B7

--

--

Not Used

B8

D-GN/WH

465

Fuel Pump Relay Control

B9

WH

1310

EVAP Canister Vent Solenoid Control

B10

TN/BK

464

Delivered Torque Signal

B11-B12

--

--

Not Used

C1

--

--

Not Used

C2

PK

539

Ignition 1 Voltage

PK

539

Ignition 1 Voltage

C3-C4

--

--

Not Used

C5

PK

439

Ignition 1 Voltage

C8-C9

--

--

Not Used

C10

BK

550

Ground

C11

--

--

Not Used

C12

PK

1339

Ignition 1 Voltage

PK

1339

Ignition 1 Voltage

D1

--

--

Not Used

D2

PK

1020

Ignition 0 Voltage

D3

BK

350

Ground

D4

WH/BK

2366

Cooling Fan Clutch Control

D5-D7

--

--

Not Used

D8

YE/BK

625

Starter Enable Relay Control

D9

D-GN/WH

459

A/C Compressor Clutch Relay Control

D10

BK

550

Ground

BK

550

Ground

D11

D-GN

59

A/C Compressor Clutch Supply Voltage

D12

PK

1239

Ignition 1 Voltage

PK

1239

Ignition 1 Voltage

E1-E4

--

--

Not Used

E5

BK

450

Ground

E6

BK

450

Ground

E7

BK

450

Ground

BK

450

Ground

E8-E11

--

--

Not Used

E12

PK

839

Ignition 1 Voltage

F1-F2

--

--

Not Used

F3

BK

350

Ground

F4-F12

--

--

Not Used

Fuse Block - Underhood C2


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-A2

--

--

Not Used

A3

OG

57

Left Cornering Lamp Supply Voltage

A4

--

--

Not Used

A5

WH/BK

2366

Cooling Fan Clutch Control (4.2L)

A6

BN

2309

Front Park Lamps Supply Voltage

A7

OG

440

Battery Positive Voltage

OG

440

Battery Positive Voltage (5.3L)

A8-A9

--

--

Not Used

A10

YE

18

Left Rear Stop/Turn Lamp Supply Voltage (UY7)

A11

OG

1640

Battery Positive Voltage (NP8)

A12

OG

2268

Windshield Washer Relay Control

B1

D-BU

2115

Right Turn Signal Lamps Supply Voltage

B2

--

--

Not Used

B3

PK/WH

1970

Headlamp Low Beam Relay Control

B4-B5

--

--

Not Used

B6

PK

639

Ignition 1 Voltage

B7

BK

58

Right Cornering Lamp Supply Voltage

B8-B9

--

--

Not Used

B10

PU

420

TCC Brake Switch/Cruise Control Release Signal

PU

420

TCC Brake Switch/Cruise Control Release Signal

B11

BN

241

Ignition 3 Voltage

B12

--

--

Not Used

C1

L-BU

2114

Left Turn Signal Lamps Supply Voltage

C2

D-GN/WH

1317

Fog Lamp Relay Control

C3

L-GN

2270

Rear Window Washer Relay Control

C4

--

--

Not Used

C5

OG

3040

Battery Positive Voltage (Early Production only)

C8

--

--

Not Used

C9

OG

1540

Battery Positive Voltage

C10

--

--

Not Used

C11

BN

441

Ignition 3 Voltage

C12

BK/WH

1969

Headlamp High Beam Relay Control

D1

D-GN/WH

1317

Fog Lamp Relay Control (T96)

D2-D4

--

--

Not Used

D5

OG

140

Battery Positive Voltage

D8

--

--

Not Used

D9

OG

640

Battery Positive Voltage

OG

640

Battery Positive Voltage

D10

D-GN

19

Right Rear Stop/Turn Lamp Supply Voltage (UY7)

D11-D12

--

--

Not Used

E1

OG

2340

Battery Positive Voltage

E2

BK

28

Horn Relay Control

E3

PK

1020

Ignition 0 Voltage

E4

--

--

Not Used

E5

PK

39

Ignition 1 Voltage

E6

OG

3240

Battery Positive Voltage (JF4)

E7

OG

3040

Battery Positive Voltage (Late Production w/JF4)

E8-E9

--

--

Not Used

E10

L-GN/BK

584

A/T Shift Lock Control Switch Supply Voltage (4.2L)

L-GN/BK

584

A/T Shift Lock Control Switch Supply Voltage (4.2L)

E11

BK/WH

1695

Axle Switch Signal (NP8)

E12

OG

1140

Battery Positive Voltage

F1

OG

2940

Battery Positive Voltage

F2-F4

--

--

Not Used

F5

YE

1139

Ignition 1 Voltage

F6

PU

806

Crank Voltage (4.2L)

F7

YE

5

Crank Voltage

F8

YE/BK

625

Starter Enable Relay Control (4.2L)

L-GN/BK

584

A/T Shift Lock Control Switch Supply Voltage (5.3L)

L-GN/BK

584

A/T Shift Lock Control Switch Supply Voltage (5.3L)

F9

--

--

Not Used

F10

D-GN

1433

Neutral Start Switch Signal (4.2L)

F11

RD

142

Battery Positive Voltage

F12

D-GN/WH

459

A/C Compressor Clutch Relay Control (4.2L)

Fuse Block - Underhood C3


Object Number: 647944  Size: CH

Connector Part Information

    • 15319892
    • 32-Way F Metri-Pack 280 Series Flexlock (NA)

Pin

Wire Color

Circuit No.

Function

A1

--

--

Not Used

A2

PK

739

Ignition 1 Voltage (SWB w/4.2L)

A3-A4

--

--

Not Used

A5

PK

239

Ignition 1 Voltage (4.2L)

A6

--

--

Not Used

B1-B3

--

--

Not Used

B4

L-GN

1624

Trailer Backup Lamps Supply Voltage

B5

BN

441

Ignition 3 Voltage

B6

--

--

Not Used

C1-C5

--

--

Not Used

C6

OG

540

Battery Positive Voltage (5.3L)

D1

--

--

Not Used

D2

YE

1618

Trailer Left Rear Turn/Stop Lamp Supply Voltage

D5

TN/BK

464

Delivered Torque Signal (2WD w/NW7)

D6

BK/WH

1695

Axle Switch Signal (NP8)

E1-E2

--

--

Not Used

E3

PU

420

TCC Brake Switch Signal

E4

BN

241

Ignition 3 Voltage

BN

241

Ignition 3 Voltage (NP8)

E5

OG

1640

Battery Positive Voltage (NP8)

E6

--

--

Not Used

F1

BK

350

Ground

BK

350

Ground (NP8)

F2

OG/BK

463

Requested Torque Signal (2WD w/NW7)

F3

GY

120

Fuel Pump Supply Voltage

F4

WH

1310

EVAP Canister Vent Solenoid Control

F5

--

--

Not Used

F6

D-GN

1619

Trailer Right Rear Turn/Stop Lamp Supply Voltage

Fuse Block - Underhood C4


Object Number: 647947  Size: CH

Connector Part Information

    • 15319893
    • 32-Way F Metri-Pack 280 Series Flexlock (GY)

Pin

Wire Color

Circuit No.

Function

A1

BN

2309

Front Park Lamps Supply Voltage

BN

2309

Front Park Lamps Supply Voltage

A2

--

--

Not Used

A3

WH

2368

Cooling Fan Clutch Supply Voltage

A4-A5

--

--

Not Used

A6

L-BU

2114

Left Turn Signal Lamps Supply Voltage

L-BU

2114

Left Turn Signal Lamps Supply Voltage

B1

BN

2309

Front Park Lamps Supply Voltage

BN

2309

Front Park Lamps Supply Voltage

B2

--

--

Not Used

B3

BK

58

Right Cornering Lamp Supply Voltage

B4

OG

57

Left Cornering Lamp Supply Voltage

B5

D-GN

392

Rear Window Washer Pump Control

B6

--

--

Not Used

C1-C2

--

--

Not Used

C5

BK

350

Ground

C6

D-BU

2115

Right Turn Signal Lamps Supply Voltage

D-BU

2115

Right Turn Signal Lamps Supply Voltage

D1-D2

--

--

Not Used

D5-D6

--

--

Not Used

E1

D-GN/WH

711

Left Headlamp High Beam Supply Voltage

E2

YE

712

Left Headlamp Low Beam Supply Voltage

E3

--

--

Not Used

E4

RD

228

Windshield Washer Pump Control

E5-E6

--

--

Not Used

F1

L-GN/BK

311

Right Headlamp High Beam Supply Voltage

F2

TN/WH

312

Right Headlamp Low Beam Supply Voltage

F3

--

--

Not Used

F4

D-GN

1329

Horn Fuse Supply Voltage

F5

PU

1197

Headlamp Washer Pump Control (CE4)

F6

PU

34

Fog Lamps Supply Voltage

PU

34

Fog Lamps Supply Voltage

Fuse Block - Underhood C5


Object Number: 647935  Size: CH

Connector Part Information

    • 12193694
    • 2-Way F MAXI FUSE (L-GY)

Pin

Wire Color

Circuit No.

Function

A

RD

342

Battery Positive Voltage

B

PK

3

Ignition 1 Voltage

Fuse Block - Underhood C6


Object Number: 647937  Size: CH

Connector Part Information

    • 12193696
    • 2-Way F MAXI FUSE (BN)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

RD

542

Battery Positive Voltage

Fuse Block - Underhood C7


Object Number: 647933  Size: CH

Connector Part Information

    • 12193693
    • 2-Way F MAXI FUSE (BK)

Pin

Wire Color

Circuit No.

Function

A

RD

1042

Battery Positive Voltage (SWB w/4.2L)

B

RD

642

Battery Positive Voltage

Fuse Block - Rear (SWB), Label


Object Number: 1326486  Size: MF

Fuse Block - Rear (SWB), Label Usage

No.

Device

Rating

Description

1

RT DOORS Circuit Breaker

25A

Front Passenger Door Module (FPDM), Right Rear Window Switch

2

LT DOORS Circuit Breaker

25A

Driver Door Module (DDM), Left Rear Window Switch

3

LGM #2 Fuse

30A

Lift Gate Module

4

TBC 3 Fuse

10A

Body Control Module (BCM)

5

RR FOG Fuse

10A

Rear Fog Lamp

6

--

--

Not Used

7

TBC 2 Fuse

10A

Body Control Module (BCM)

8

SEATS Circuit Breaker

30A

Memory Seat Module - Driver

9

RR WIPER

15A

Rear Window Wiper Motor

10

DDM Fuse

10A

Driver Door Module (DDM)

11

AMP Fuse

20A

Audio Amplifier (UQA)

12

PDM Fuse

10A

Front Passenger Door Module (FPDM)

13

RR HVAC Fuse

30A

Blower Motor - Auxiliary, Blower Motor Control Processor - Auxiliary

14

LR PARK Fuse

10A

License Lamps and Left Tail Lamp

15

--

--

Not Used

16

VEH CHMSL Fuse

10A

Center High-Mounted Stop Lamp (CHMSL)

17

RR PARK Fuse

10A

Right Tail Lamp Assembly

18

LOCK Relay

--

Rear Door Lock Actuators

19

LGM/DSM Fuse

10A

Memory Seat Module - Driver, Liftgate Module

20

SUNROOF Fuse

20A

Sunroof Module (CF5)

21

LOCKS Fuse

10A

LOCK Relay and UNLOCK Relay

23

--

--

Not Used

24

UNLOCK Relay

--

Rear Door Lock Actuators

25-26

--

--

Not Used

27

OH BATT/ONSTAR Fuse

10A

Garage Door Opener, Voice Recorder (UPC)

29

RAIN Fuse

10A

Outside Moisture Sensor (CE1)

30

PARK LP Relay

--

LR PARK, RR PARK, F PARK, and TR PARK Fuses

31

TBC ACC Fuse

3A

Body Control Module (BCM)

32

TBC 5 Fuse

10A

Body Control Module (BCM)

33

FRT WPR Fuse

25A

Windshield Wiper Motor

34

VEH STOP Fuse

15A

Tail Lamps, Powertrain Control Module (PCM), Throttle Actuator Control (TAC) Module

35

--

--

Not Used

36

HVAC B Fuse

10A

HVAC Control Module, HVAC Control Module-Auxiliary

37

F PARK Fuse

10A

Turn Signal/Multifunction Switch, Marker Lamps, Front Park and Turn Signal Lamps

38

LT TURN Fuse

10A

Instrument Panel Cluster, Driver Door Module (DDM), Tail Lamp Assembly - Left, Marker Lamp - Left, Park/Turn Signal Lamp - LF

39

HVAC I Fuse

10A

HVAC Control Module, Turn Signal/Multifunction Switch, Air Temperature Actuator - Right, Defrost Actuator, Recirculation Actuator, Mode Actuator, Console Mode Actuator, Air Temperature Actuator - Left, Traction Control Switch

40

TBC 4

10A

Body Control Module (BCM)

41

RADIO

15A

Radio

42

TR PARK

10A

Trailer Connector

43

RT TURN

10A

Instrument Panel Cluster, Front Passenger Door Module (FPDM), Tail Lamp Assembly - Right, Marker Lamp - Right, Park/Turn Signal Lamp - RF

44

HVAC

30A

HVAC Control Module

45

RR FOG LP Relay

--

Not Used

46

AUX PWR 1 Fuse

20A

Auxiliary Power Outlet - Front, Auxiliary Power Outlet - Console

47

IGN 0 Fuse

10A

Automatic Transmission, A/T Shift Lock Actuator, Powertrain Control Module (PCM)

48

4WD Fuse

15A

Transfer Case Shift Control Switch, Front Axle Actuator

49

--

--

Not Used

50

TBC IG Fuse

3A

Body Control Module (BCM)

51

BRAKE Fuse

10A

Electronic Brake Control Module (EBCM)

52

TBC RUN Fuse

3A

Body Control Module (BCM)

Fuse Block - Rear (LWB), Label


Object Number: 1326489  Size: MF

Fuse Block - Rear (LWB), Label Usage

No.

Device

Rating

Description

1

RT DOORS Circuit Breaker

25A

Front Passenger Door Module (FPDM), Right Rear Window Switch

2

LT DOORS Circuit Breaker

25A

Driver Door Module (DDM), Left Rear Window Switch

3

LGM #2 Fuse

30A

Lift Gate Module

4

TBC 3 Fuse

10A

Body Control Module (BCM)

5

RR FOG Fuse

10A

Not Used

6

--

--

Not Used

7

TBC 2 Fuse

10A

Body Control Module (BCM)

8

SEATS Circuit Breaker

30A

Memory Seat Module - Driver

9

RR WIPER

15A

Rear Window Wiper Motor

10

DDM Fuse

10A

Driver Door Module (DDM)

11

AMP Fuse

20A

Audio Amplifier (UQA)

12

PDM Fuse

10A

Front Passenger Door Module (FPDM)

13

RR HVAC Fuse

30A

Blower Motor - Auxiliary, Blower Motor Control Processor - Auxiliary

14

LR PARK Fuse

10A

License Lamps and Left Tail Lamp

15

--

--

Not Used

16

VEH CHMSL Fuse

10A

Center High-Mounted Stop Lamp (CHMSL)

17

RR PARK Fuse

10A

Right Tail Lamp Assembly

18

LOCK Relay

--

Rear Door Lock Actuators

19

LGM/DSM Fuse

10A

Memory Seat Module - Driver, Liftgate Module

20

VENT WDO Fuse

20A

Retained Accessory Power (RAP) Relay

21

LOCKS Fuse

10A

LOCK Relay and UNLOCK Relay

22

RAP Relay

--

Quarter-Glass Switches and Actuators, Sunroof Motor (CF5)

23

--

--

Not Used

24

UNLOCK Relay

--

Rear Door Lock Actuators

25-26

--

--

Not Used

27

OH BATT/ONSTAR Fuse

10A

Garage Door Opener (UG1), Voice Recorder (UPC)

28

SUNROOF

20A

Sunroof Motor (CF5)

29

RAIN Fuse

10A

Outside Moisture Sensor (CE1)

30

PARK LP Relay

--

LR PARK, RR PARK, F PARK, and TR PARK Fuses

31

TBC ACC Fuse

3A

Body Control Module (BCM)

32

TBC 5 Fuse

10A

Body Control Module (BCM)

33

FRT WPR Fuse

25A

Windshield Wiper Motor

34

VEH STOP Fuse

15A

Tail Lamps, Powertrain Control Module (PCM), Throttle Actuator Control (TAC) Module

35

--

--

Not Used

36

HVAC B Fuse

10A

HVAC Control Module, HVAC Control Module-Auxiliary

37

F PARK Fuse

10A

Turn Signal/Multifunction Switch, Marker Lamps, Front Park and Turn Signal Lamps

38

LT TURN Fuse

10A

Instrument Panel Cluster, Driver Door Module (DDM), Tail Lamp Assembly - Left, Marker Lamp - Left, Park/Turn Signal Lamp - LF

39

HVAC I Fuse

10A

HVAC Control Module, Turn Signal/Multifunction Switch, Air Temperature Actuator - Right, Defrost Actuator, Recirculation Actuator, Mode Actuator, Console Mode Actuator, Air Temperature Actuator - Left, Traction Control Switch (NW7)

40

TBC 4

10A

Body Control Module (BCM)

41

RADIO

15A

Radio

42

TR PARK

10A

Trailer Connector

43

RT TURN

10A

Instrument Panel Cluster, Front Passenger Door Module (FPDM), Tail Lamp Assembly - Right, Marker Lamp - Right, Park/Turn Signal Lamp - RF

44

HVAC

30A

HVAC Control Module

45

RR FOG LP Relay

--

Not Used

46

AUX PWR 1 Fuse

20A

Auxiliary Power Outlet - Front, Auxiliary Power Outlet - Console

47

IGN 0 Fuse

10A

Automatic Transmission, A/T Shift Lock Actuator, Powertrain Control Module (PCM)

48

4WD Fuse

15A

Transfer Case Shift Control Switch, Front Axle Actuator

50

TBC IG Fuse

3A

Body Control Module (BCM)

51

BRAKE Fuse

10A

Electronic Brake Control Module (EBCM)

52

TBC RUN Fuse

3A

Body Control Module (BCM)

Fuse Block - Rear (SWB), Top View


Object Number: 1326494  Size: MF

Fuse Block - Rear (LWB), Top View


Object Number: 1326495  Size: MF

Fuse Block - Rear, Bottom View


Object Number: 1215019  Size: MF

Fuse Block - Rear C1


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

--

--

Not Used

A2

BN/WH

230

Instrument Panel Lamps Dimming Control

A3

--

--

Not Used

A4

L-GN

24

Backup Lamp Supply Voltage

A5

--

--

Not Used

A6

BN

4

Accessory Voltage

A7

YE

143

Accessory Voltage

A8

BN

341

Ignition 3 Voltage

BN

341

Ignition 3 Voltage

A9

L-GN/BK

735

Ambient Air Temperature Sensor Signal (CJ3)

A10

PU/WH

1382

LED Dimming Signal (NW7)

A11-A12

--

--

Not Used

B1

L-BU

1134

Park Brake Switch Signal

B2

BN/WH

230

Instrument Panel Lamps Dimming Control

B3

BN

2309

Front Park Lamps Supply Voltage

B4

WH

17

Stop Lamp Switch Signal

B5

L-BU

1320

Stop Lamp Supply Voltage

L-BU

1320

Stop Lamp Supply Voltage

B6-B7

--

--

Not Used

B8

BN

341

Ignition 3 Voltage

BN

341

Ignition 3 Voltage

B9

--

--

Not Used

B10

PU/WH

1382

LED Dimming Signal

PU/WH

1382

LED Dimming Signal (NP8)

B11-B12

--

--

Not Used

C1

OG

4340

Battery Positive Voltage

OG

4340

Battery Positive Voltage (All Except SWB w/CJ3)

C2

--

--

Not Used

C3

BN

2309

Front Park Lamps Supply Voltage

C4

L-BU

2114

Left Turn Signal Lamps Supply Voltage

L-BU

2114

Left Turn Signal Lamps Supply Voltage

C5

YE

685

Left Turn Signal Flasher Signal

C8

BN

341

Ignition 3 Voltage

BN

341

Ignition 3 Voltage

C9-C12

--

--

Not Used

D1

OG

340

Battery Positive Voltage

OG

340

Battery Positive Voltage

D2

--

--

Not Used

D3

BN

2109

Trailer Park Lamps Supply Voltage

D4

D-BU

2115

Right Turn Signal Lamps Supply Voltage

D-BU

2115

Right Turn Signal Lamps Supply Voltage

D5

TN

686

Right Turn Signal Flasher Signal

D8

BN

141

Ignition 3 Voltage (CJ3)

D9

OG

300

Ignition 3 Voltage

D10

BK

481

Outside Moisture Sense Signal 1

D11

--

--

Not Used

D12

PK

39

Ignition 1 Voltage

E1-E2

--

--

Not Used

E3

OG

1040

Battery Positive Voltage

E4

--

--

Not Used

E5

BN

341

Ignition 3 Voltage

BN

341

Ignition 3 Voltage

E6

WH

1390

Off/Run/Crank Voltage

E7

PK

1020

Ignition 0 Voltage

E8

BN

241

Ignition 3 Voltage

BN

241

Ignition 3 Voltage (NP8)

E9

--

--

Not Used

E10

BN

718

Low Reference (CJ3)

E11

--

--

Not Used

E12

PK

639

Ignition 1 Voltage

F1-F2

--

--

Not Used

F3

OG

1040

Battery Positive Voltage

OG

1040

Battery Positive Voltage

F4

--

--

Not Used

F5

BN

341

Ignition 3 Voltage (w/CJ2&NW7)

F6-F7

--

--

Not Used

F8

BN

441

Ignition 3 Voltage

F9-F12

--

--

Not Used

Fuse Block - Rear C2


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

OG

3640

Battery Positive Voltage

A2

BN/WH

230

Instrument Panel Lamps Dimming Control

BN/WH

230

Instrument Panel Lamps Dimming Control

A3

OG

1340

Battery Positive Voltage

A4

--

--

Not Used

A5

OG

2740

Battery Positive Voltage (AR9)

A6-A7

--

--

Not Used

A8

OG

1240

Battery Positive Voltage

A9

D-GN

1188

Power Window Switch Right Rear Down Signal

A10-A11

--

--

Not Used

A12

L-GN /BK

748

Right Rear Door Ajar Switch Signal

B1

--

--

Not Used

B2

L-BU

1320

Stop Lamp Supply Voltage

B3

OG

1340

Battery Positive Voltage

B4

D-BU

2115

Right Turn Signal Lamps Supply Voltage

D-BU

2115

Right Turn Signal Lamps Supply Voltage

B5

OG

2740

Battery Positive Voltage

B6-B7

--

--

Not Used

B8

OG

1240

Battery Positive Voltage

B9-B12

--

--

Not Used

C1

OG

3540

Battery Positive Voltage (AR9)

C2

L-BU

1320

Stop Lamp Supply Voltage

C3

L-BU

2114

Left Turn Signal Lamps Supply Voltage

L-BU

2114

Left Turn Signal Lamps Supply Voltage

C4

--

--

Not Used

C5

OG

4440

Battery Positive Voltage

C6-C9

--

--

Not Used

C10

OG

4140

Battery Positive Voltage

C11

--

--

Not Used

C12

L-BU

2265

Power Window Lockout Left Rear Signal

D1

OG

3540

Battery Positive Voltage (AR9)

D2

BN

2509

Left Rear Park Lamps Supply Voltage

D3-D4

--

--

Not Used

D5

OG

3740

Battery Positive Voltage

D8

TN

294

Door Lock Actuator Unlock Control

TN

294

Door Lock Actuator Unlock Control

D9

--

--

Not Used

D10

OG

4240

Battery Positive Voltage

D11

--

--

Not Used

D12

L-GN

2266

Power Window Lockout Right Rear Signal

E1

OG

840

Battery Positive Voltage (LWB)

E2

BN

2509

Left Rear Park Lamps Supply Voltage

E3

--

--

Not Used

E4

OG

3140

Battery Positive Voltage (UE1)

OG

3140

Battery Positive Voltage (UE1)

E5-E6

--

--

Not Used

E7

D-GN

1488

Noise Reduction Microphone Supply Voltage (UQA w/Class 2 Amp)

E8

L-GN/BK

1354

Drain Wire (UQA w/Class 2 Amp)

E9

YE

1187

Power Window Switch Left Rear Down Signal

E10-E11

--

--

Not Used

E12

GY/BK

1186

Power Window Switch Right Rear Up Signal

F1

YE

820

CHMSL Supply Voltage

F2

BN/WH

2609

Right Rear Park Lamps Supply Voltage

F3-F5

--

--

Not Used

F6

GY

295

Door Lock Actuator Lock Control

GY

295

Door Lock Actuator Lock Control

F7

--

--

Not Used

F8

BK

1350

Ground

F9

--

--

Not Used

F10

L-BU/BK

747

Left Rear Door Ajar Switch Signal

F11

--

--

Not Used

F12

WH

1185

Power Window Switch Left Rear Up Signal

Fuse Block - Rear C3


Object Number: 647947  Size: CH

Connector Part Information

    • 15319893
    • 32-Way F Metri-Pack 280 Series Flexlock (GY)

Pin

Wire Color

Circuit No.

Function

A1

--

--

Not Used

A2

BK

1350

Ground

A3-A4

--

--

Not Used

A5

D-BU

2307

Passenger Air Bag On Indicator Control

A6

--

--

Not Used

B1

D-GN

1488

Noise Reduction Microphone Supply Voltage

B2

D-GN

801

RAP Fuse Supply Voltage (LWB w/CF5)

B3

L-GN/BK

1354

Drain Wire

B4

D-BU

1353

RAP Supply Voltage (SWB w/CF5)

B5

--

--

Not Used

B6

GY/BK

690

Courtesy Lamp Low Control

C1

D-GN

2308

Passenger Air Bag Off Indicator Control

C2

D-GN

801

RAP Supply Voltage (LWB)

C3-C6

--

--

Not Used

D1-D5

--

--

Not Used

D6

L-GN

24

Backup Lamp Supply Voltage

E1

OG

3140

Battery Positive Voltage

E2

PK

639

Ignition 1 Voltage (DD7/DF5)

E3

BN/WH

230

Instrument Panel Lamps Dimming Control

E4

OG

1740

Battery Positive Voltage (CF5)

E5

--

--

Not Used

E6

BN

718

Low Reference

F1

YE

443

Accessory Voltage (CE1)

F2

--

--

Not Used

F3

L-GN/BK

735

Ambient Air Temperature Sensor Signal

F4

BK

481

Outside Moisture Sensor Signal 1 (CE1)

F5

--

--

Not Used

F6

OG

1732

Courtesy Lamps Supply Voltage

Fuse Block - Rear C4


Object Number: 697009  Size: CH

Connector Part Information

    • 15077187
    • 40-Way M Flat Wire

Pin

Wire Color

Circuit No.

Function

A1

--

--

TBC 2 Fuse

A2

--

--

TBC 2 Fuse

A3

--

--

Right Rear Door Ajar Switch Signal

A4

--

--

Park Brake Switch Signal

A5

--

--

Door Lock Relay Control

A6

--

--

Power Window Lockout Left Rear Control

A7

--

--

Not Used

A8

--

--

Left Rear Door Ajar Switch Signal

A9-A10

--

--

Not Used

A11

--

--

Ground

A12

--

--

RAP Supply Voltage

A13

--

--

Door Unlock Relay Control

A14

--

--

Park Lamp Relay Control

A15-A17

--

--

Not Used

A18

--

--

TBC IG Fuse

A19

--

--

TBC IGN 1 Fuse

A20

--

--

TBC Run Fuse

B1

--

--

Instrument Panel Lamps Dimming Control

B2

--

--

Instrument Panel Lamps Dimming Control

B3

--

--

Courtesy Lamp Supply Voltage

B4

--

--

TBC 3 Fuse

B5

--

--

Power Window Switch Right Rear Up Signal

B6

--

--

Power Window Lockout Right Rear Signal

B7

--

--

Power Window Switch Right Rear Down Signal

B8

--

--

Power Window Switch Left Rear Up Signal

B9

--

--

Power Window Switch Left Rear Down Signal

B10

--

--

Not Used

B11

--

--

Ground

B12

--

--

Backup Lamp Supply Voltage

B13

--

--

TBC 5 Fuse

B14

--

--

LED Dimming Signal

B15

--

--

TBC ACC Fuse

B16

--

--

Not Used

B17

--

--

TBC 4 Fuse

B18

--

--

Inadvertent Power Courtesy Lamps Supply Voltage

B19

--

--

Rear Fog Lamp Relay Control

B20

--

--

Not Used