GM Service Manual Online
For 1990-2009 cars only
Table 1: Accessory Power Receptacle
Table 2: Cigar Lighter
Table 3: Fuse Block - Rear C1
Table 4: Fuse Block - Rear C2
Table 5: Fuse Block - Rear C3
Table 6: Fuse Block - Rear C4
Table 7: Fuse Block - Underhood C1
Table 8: Fuse Block - Underhood C2
Table 9: Fuse Block - Underhood C3
Table 10: Fuse Block - Underhood C4
Table 11: Fuse Block - Underhood C5 (w/2 AIR Pumps)
Table 12: Ignition Switch C1
Table 13: Ignition Switch C2

Accessory Power Receptacle


Object Number: 38228  Size: CH

Connector Part Information

    • 12047699
    • 2-Way M 56 Series (GRY)

Pin

Wire Color

Circuit No.

Function

A

ORN

3540

Battery Positive Voltage

B

BLK

450

Ground

Cigar Lighter


Object Number: 365964  Size: CH

Connector Part Information

    • 12176445
    • 3-Way F Metric-Pack 280 Series Flex Lock (NAT)

Pin

Wire Color

Circuit No.

Function

A

ORN

2040

Battery Positive Voltage

B

--

--

Not Used

C

BLK

450

Ground

Fuse Block - Rear C1


Object Number: 280787  Size: CH

Connector Part Information

    • 15303512
    • 68-Way Metri-pack 280 Series (LT GRY)
    • Body Harness Connector

Pin

Wire Color

Circuit No.

Function

A1

ORN

1340

Battery Positive Voltage

A2

--

--

Not Used

A3

BRN/WHT

309

Right Park Lamp Supply Voltage

A4

YEL

32

Instrument Panel Lamp Fuse Supply Voltage - 1

A5-A8

--

--

Not Used

A9

ORN

440

Battery Positive Voltage

A10

BRN

141

Ignition 3 Voltage

A11

ORN

300

Ignition 3 Switch

A12

--

--

Not Used

B1

--

--

Not Used

B2

YEL

1139

Ignition 1 Voltage

B3

BRN/WHT

309

Right Park Lamp Supply Voltage

B4

PPL

709

Left Park Lamp Supply Voltage

B5

PNK/BLK

1615

Park Brake Relay Control

B6

LT GRN

275

Park Neutral Position Switch Park Signal

B7

LT BLU

2182

Reverse Lamp Relay Control

B8

LT GRN

24

Backup Lamp Supply Voltage

B8

LT GRN

24

Backup Lamp Supply Voltage

B9-B12

--

--

Not Used

C1-C4

--

--

Not Used

C5

ORN

1640

Battery Positive Voltage

C8

LT GRN

24

Backup Lamp Supply Voltage

C9

ORN

540

Battery Positive Voltage

C9

ORN

540

Battery Positive Voltage

C10

--

--

Not Used

C11

BRN

41

Ignition 3 Voltage

C12

BRN

241

Ignition 3 Voltage

D1

--

--

Not Used

D2

BLK

750

Ground

D3

--

--

Not Used

D4

DK GRN

1483

Control Power Output

D4

DK GRN

1483

Control Power Output

D5-D8

--

--

Not Used

D9

PNK

70

RAP Relay Switch Supply Voltage

D10

DK GRN

1399

RAP Relay Coil Supply Voltage

D11-D12

--

--

Not Used

E1-E2

--

--

Not Used

E3

ORN

840

Battery Positive Voltage

E4

PPL

709

Left Park Lamp Supply Voltage

E5-E8

--

--

Not Used

E9

ORN

540

Battery Positive Voltage

E10

ORN

540

Battery Positive Voltage

E11

--

--

Not Used

E12

ORN

3740

Battery Positive Voltage

F1

DK GRN/WHT

465

Fuel Pump Relay Control (-Primary)

F2

GRY

120

Fuel Pump Supply Voltage

F3

WHT

1080

Park Lamp Relay Control

F4

--

--

Not Used

F5

ORN

840

Battery Positive Voltage

F6-F11

--

--

Not Used

F12

ORN

3740

Battery Positive Voltage

Fuse Block - Rear C2


Object Number: 280786  Size: CH

Connector Part Information

    • 15303514
    • 68-Way Metri-pack 280 Series (DK GRY)
    • Body Harness Connector

Pin

Wire Color

Circuit No.

Function

A1-A5

--

--

Not Used

A6

DK BLU

75

RAP Relay Switch Supply Voltage

A7-A8

--

--

Not Used

A9

BLK/WHT

56

Trunk Release Motor Supply Voltage

A10

BRN

253

Trunk Release Relay Control

A11

BLK

750

Ground

A12

GRY/BLK

690

Courtesy Lamp Relay Coil Control

B1

YEL

1977

Rear Fog Lamp Relay Control

B2

RED

122

Rear Fog Lamp Supply Voltage

B3-B4

--

--

Not Used

B5

ORN

2240

Battery Positive Voltage

B6-B11

--

--

Not Used

B12

DK BLU/WHT

1495

Courtesy Lamp Switch Signal

B12

DK BLU/WHT

1495

Courtesy Lamp Switch Signal

C1

ORN

3640

Battery Positive Voltage

C2-C3

--

--

Not Used

C4

ORN

2440

Battery Positive Voltage

C5

ORN

2240

Battery Positive Voltage

C8

--

--

Not Used

C9

LT BLU

1344

Trunk Release Relay Control

C10-C12

--

--

Not Used

D1-D8

--

--

Not Used

D9

PNK

79

Fuel Door Release Solenoid Supply Voltage

D10

BRN

253

Trunk Release Relay Control

D11

--

--

Not Used

D12

DK BLU/WHT

149

Courtesy Lamp Supply Voltage

E1

ORN

2840

Battery Positive Voltage

E2

PNK

3

Ignition 1 Voltage

E3-E10

--

--

Not Used

E11

TAN

2183

Inadvertent Power Relay Control

E12

DK BLU/WHT

149

Courtesy Lamp Supply Voltage

F1-F2

--

--

Not Used

F3

PNK

1239

Ignition 1 Voltage

F4-F8

--

--

Not Used

F9

WHT

93

Fuel Door Release Relay Control

F10-F12

--

--

Not Used

Fuse Block - Rear C3


Object Number: 280784  Size: CH

Connector Part Information

    • 15203513
    • 68-Way F Metri-pack 280 Series (BLK)
    • Body Harness Connector

Pin

Wire Color

Circuit No.

Function

A1-A6

--

--

Not Used

A7

ORN

740

Battery Positive Voltage

A8-A12

--

--

Not Used

B1

ORN

640

Battery Positive Voltage

B2-B9

--

--

Not Used

B10

RED

1342

Battery Positive Voltage

B11

--

--

Not Used

B12

ORN

3340

Battery Positive Voltage

C1

--

--

Not Used

C2

ORN

1040

Battery Positive Voltage

C3

--

--

Not Used

C4

WHT

193

Rear Defog Relay Control

C5

PPL

293

Rear Defog Element Supply Voltage

C8-C9

--

--

Not Used

C10

YEL

321

Automatic Level Control Relay Coil Supply Voltage

C11

DK GRN

322

Automatic Level Control Compressor Motor Control

C12

--

--

Not Used

D1

ORN

2640

Battery Positive Voltage

D2

ORN

1040

Battery Positive Voltage

D3

PNK

1039

Ignition 1 Voltage

D4-D11

--

--

Not Used

D12

ORN

1140

Battery Positive Voltage

E1

--

--

Not Used

E2

ORN

1040

Battery Positive Voltage

E3

PNK

1039

Ignition 1 Voltage

E4-E10

--

--

Not Used

E11

ORN

3340

Battery Positive Voltage

E12

--

--

Not Used

F1

--

--

Not Used

F2

ORN

1040

Battery Positive Voltage

F3-F5

--

--

Not Used

F6

BLK

755

RAP Relay Coil Control

F7-F8

--

--

Not Used

F9

ORN

2540

Battery Positive Voltage

F10-F11

--

--

Not Used

F12

ORN

1740

Battery Positive Voltage

Fuse Block - Rear C4


Object Number: 280790  Size: CH

Connector Part Information

    • 12160605
    • 2-Way F Metri-Pack 800 Series (GRN)
    • Body Harness Connector

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

RED

1242

Battery Positive Voltage

Fuse Block - Underhood C1


Object Number: 73172  Size: CH

Connector Part Information

    • 15319528
    •  68-Way M Metri - Pack 100 Series (LT GRY)
    • Forward Lamp Harness Connector

Pin

Wire Color

Circuit No.

Function

A1-A3

--

--

Not Used

A4

BRN

309

Right Park Lamp Supply Voltage

A5

RED

228

Windshield Washer Pump Control

A6

--

--

Not Used

A7

GRY

532

Cooling Fan Motor Supply Voltage

A8

--

--

Not Used

A9

PNK

1200

High Beam Headlamp Lamp Output

A10-A11

--

--

Not Used

A12

DK GRN

29

Horn Control

B1

BLK/WHT

99

Windshield Washer Fluid Level Signal

B2-B3

--

--

Not Used

B4

BRN/WHT

309

Right Park Lamp Supply Voltage

B5

LT BLU

14

Left Front Turn Signal Lamp Signal

B6

LT BLU/BLK

14

Left Front Turn Signal Lamp Signal

B7

PPL

709

Left Park Lamp Supply Voltage

B8

PPL

709

Left Park Lamp Supply Voltage

B9

DK BLU

15

Right Front Turn Signal Lamp Signal

B10-B12

--

--

Not Used

C1-C4

--

--

Not Used

C5

TAN/WHT

312

Right Headlamp Low Beam Supply Voltage

C8

BLK

250

Ground

C9

DK BLU/WHT

15

Right Front Turn Signal Lamp Signal

C10

PPL

34

Fog Lamp Supply Voltage

C11

PPL

34

Fog Lamp Supply Voltage

C12

--

--

Not Used

D1-D9

--

--

Not Used

D10

WHT

504

Cooling Fan Motor Ground

D11 -D12

--

--

Not Used

E1 --E4

--

--

Not Used

E5

YEL

712

Left Headlamp Low Beam Supply Voltage

E6 -E9

--

--

Not Used

E10

LT BLU

409

Cooling Fan Motor Supply Voltage

E11 -E12

--

--

Not Used

F1-F5

--

--

Not Used

F6

LT GRN/BLK

311

Right Headlamp High Beam Supply Voltage

F7

DK GRN/WHT

711

Left Headlamp High Beam Supply Voltage

F8-F10

--

--

Not Used

F11

BLK

250

Ground

F12

--

--

Not Used

Fuse Block - Underhood C2


Object Number: 73168  Size: CH

Connector Part Information

    • 15319530
    • 68-Way F Metri-Pack 280 Series (DK GRY)
    • Body Harness Connector

Pin

Wire Color

Circuit No.

Function

A1

BRN

241

Ignition 3 Voltage

A2

PNK/BLK

2262

Air Conditioning Orifice Solenoid Supply Voltage

A3-A5

--

--

Not Used

A6

BLK

250

Ground

A6

BLK

250

Ground

A7-A12

--

--

Not Used

B1

BLK/WHT

99

Windshield Washer Fluid Level Signal

B2-B4

--

--

Not Used

B5

BRN/WHT

309

Right Park Lamp Supply Voltage

B6

ORN

240

Battery Positive Voltage

B7- B9

--

--

Not Used

B10

LT GRN/ BLK

592

DRL Relay Control

B11

--

--

Not Used

B12

ORN

2040

Battery Positive Voltage

C1

--

--

Not Used

C2

BLK/WHT

1969

Headlamp High Beam Relay Control

C2

BLK/WHT

1969

Headlamp High Beam Relay Control

C3

YEL

43

Accessory Voltage

C4

YEL

2263

Air Conditioning Orifice Solenoid Relay Control

C5

--

--

Not Used

C8

PNK

639

Ignition 1 Voltage

C9- C10

--

--

Not Used

C11

DK GRN/WHT

1317

Fog Lamp Relay Control

C12

--

--

Not Used

D1

DK GRN

1483

Control Power Output

D2

BRN

4

Accessory Voltage

D2

BRN

4

Accessory Voltage

D3

--

--

Not Used

D4

PNK/WHT

1970

Headlamp Low Beam Relay Control

D4

PNK/WHT

1970

Headlamp Low Beam Relay Control

D5

--

--

Not Used

D8-D9

--

--

Not Used

D10

BLK

28

Horn Relay Control

D10

BLK

28

Horn Relay Control

D11

--

--

Not Used

D12

PNK

70

RAP Relay Switch Supply Voltage

E1-E5

--

--

Not Used

E6

LT BLU

14

Left Front Turn Signal Lamps Supply Voltage

E7

PPL

709

Left Park Lamp Supply Voltage

E8- E9

--

--

Not Used

E10

PNK

3

Ignition Switch Output - Ignition 1

E11

--

--

Not Used

E12

ORN

3540

Battery Positive Voltage

F1

--

--

Not Used

F2

YEL

43

Accessory Voltage

F3

YEL

143

Accessory Voltage

F4

--

--

Not Used

F5

RED

228

Windshield Washer Pump Control

F6-F8

--

--

Not Used

F9

DK BLU

15

Right Front Turn Signal Lamps Supply Voltage

F10-F12

--

--

Not Used

Fuse Block - Underhood C3


Object Number: 73167  Size: CH

Connector Part Information

    • 15319529
    • 68-Way F Metri-Pack 280 Series (BLK)
    • Engine Harness Connector

Pin

Wire Color

Circuit No.

Function

A1- A3

--

--

Not Used

A4

PNK/BLK

139

Ignition 1 Voltage (w/NC8)

A5

--

--

Not Used

A6

PNK/BLK

239

Ignition 1 Voltage (w/LX5)

A6

PNK

239

Ignition 1 Voltage (w/L47)

A7

--

--

Not Used

A8

PNK/BLK

339

Ignition 1 Voltage (w/LX5)

A8

PNK

339

Ignition 1 Voltage (w/L47)

A9- A10

--

--

Not Used

A11

DK GRN/ WHT

459

A/C Clutch Relay Control

A12

--

--

Not Used

B1- B2

--

--

Not Used

B3

PNK/WHT

139

Ignition 1 Voltage (w/LX5)

B3

PNK

139

Ignition 1 Voltage (w/L47)

B3

PNK

139

Ignition 1 Voltage (L47 Only)

B4

PNK

139

Ignition 1 Voltage (w/LX5)

B4

PNK/WHT

139

Ignition 1 Voltage (w/L47)

B5

PNK

239

Ignition 1 Voltage (L47 Only)

B6

PNK/WHT

239

Ignition 1 Voltage

B7

PNK/BLK

139

Ignition 1 Voltage

B8

--

--

Not Used

B9

PNK/BLK

239

Ignition 1 Voltage

B10

DK BLU

473

High Speed Cooling Fan Relay Control

B11- B12

--

--

Not Used

C1

--

--

Not Used

C2

YEL

447

Starter Relay Coil Control

C3

PPL

6

Starter Solenoid Crank Voltage

C4-C5

--

--

Not Used

C8

PNK

839

Ignition 1 Voltage (w/LX5)

C8

PNK/WHT

839

Ignition 1 Voltage (w/L47)

C9

PNK

539

Ignition 1 Voltage (w/L47)

C9

PNK/WHT

539

Ignition 1 Voltage (w/LX5)

C10

--

--

Not Used

C11

DK GRN

59

A/C Compressor Clutch Supply Voltage

C12

--

--

Not Used

D1- D3

--

--

Not Used

D4

PNK

339

Ignition 1 Voltage (w/L47)

D4

PNK/BLK

339

Ignition 1 Voltage (w/LX5)

D5

ORN

240

Battery Positive Voltage (w/LX5)

D5

ORN/BLK

240

Battery Positive Voltage (w/L47)

D8

PNK

839

Ignition 1 Voltage (w/L47)

D8

PNK/WHT

839

Ignition 1 Voltage (w/LX5)

D9

PNK

539

Ignition 1 Voltage

D10-D12

--

--

Not Used

E1-E3

--

--

Not Used

E4

PNK/WHT

339

Ignition 1 Voltage (w/LX5)

E4

PNK/BLK

339

Ignition 1 Voltage (w/L47)

E5

ORN

240

Battery Positive Voltage

E6

PNK

739

Ignition 1 Voltage

E7

--

--

Not Used (w/LX5)

E7

PNK/BLK

739

Ignition 1 Voltage (w/L47)

E8-E12

--

--

Not Used

F1

BRN

241

Ignition 3 Voltage

F2-F3

--

--

Not Used

F4

PNK

339

Ignition 1 Voltage (w/L47)

F5- F7

--

--

Not Used

F8

DK GRN

335

Low Speed Cooling Fan Relay Control

F9

PNK

39

Ignition 1 Voltage

F10- F12

--

--

Not Used

Fuse Block - Underhood C4


Object Number: 258627  Size: CH

Connector Part Information

    • 15319799
    • 2-Way (GRN)
    • Engine Harness Connector

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used (w/ 2 AIR Pumps)

A

RED

842

Battery Positive Voltage (w/ 1 AIR Pump)

B

RED

442

Battery Positive Voltage (w/ 1 AIR Pump)

B

RED

742

Battery Positive Voltage (w/ 2 AIR Pumps)

Fuse Block - Underhood C5 (w/2 AIR Pumps)


Object Number: 258627  Size: CH

Connector Part Information

    • 15319798
    • 2-Way (BLK)
    • Engine Harness Connector

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

RED

442

Battery Positive Voltage

Ignition Switch C1


Object Number: 258182  Size: CH

Connector Part Information

    • 12162229
    • 6-Way (F) Metri-Pack Mixed Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

540

Battery Positive Voltage

B

PNK

3

Ignition 1 Voltage

C

BRN

4

Accessory Voltage

D

--

--

Not Used

E

BLK/WHT

451

Ground

F

--

--

Not Used

Ignition Switch C2


Object Number: 258183  Size: CH

Connector Part Information

    • 12110075
    • 6-Way (F) Metri-Pack Mixed Series (NAT)

Pin

Wire Color

Circuit No.

Function

A

ORN

540

Battery Positive Voltage

A

ORN

540

Battery Positive Voltage

B

YEL

5

Crank Voltage

C

ORN

300

Ignition 3 Voltage

D

LT GRN

80

Key-In-Ignition Switch Signal

E

WHT

1390

Off/Run/Crank Voltage

F

--

--

Not Used