GM Service Manual Online
For 1990-2009 cars only
Table 1: Auxiliary Power Drop Connector
Table 2: Auxiliary Power Outlet-Console
Table 3: Cigar Lighter
Table 4: Fuse Block-Underhood, Connector C1
Table 5: Fuse Block -- Underhood, Connector C2
Table 6: Fuse Block-Underhood, Connector C3
Table 7: Fuse Block-Underhood, Connector C4
Table 8: Fuse Block-Underhood, Connector C5
Table 9: Fuse Block-Underhood, Connector C6

Auxiliary Power Drop Connector


Object Number: 130696  Size: CH

Connector Part Information

    • 12129490
    • 3-Way M Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

440

Battery Positive Voltage

B

PNK

239

Ignition 1 Voltage

C

BLK

1450

Ground

Auxiliary Power Outlet-Console


Object Number: 258167  Size: CH

Connector Part Information

    • 12033934
    • 2-Way F 56 SER LK Type (GRY)

Pin

Wire Color

Circuit No.

Function

A

ORN

440

Battery Positive Voltage

B

BLK

150

Ground

Cigar Lighter


Object Number: 38228  Size: CH

Connector Part Information

    • 12047699
    • 1-Way M SLV & 1 C/LTR Pull to Seat (GRY)

Pin

Wire Color

Circuit No.

Function

A

ORN

440

Battery Positive Voltage

B

BLK

1450

Ground

Fuse Block-Underhood, Connector C1


Object Number: 280784  Size: CH

Connector Part Information

    • 15303513
    • 68-Way F Metri-Pack 280 Series Flex Lock (BLK)

Pin

Wire Color

Circuit No.

Function

A1

DK GRN

35

Coolant Temperature Indicator Control

A2-A4

--

--

Not Used

A5

DK GRN/WHT

465

Fuel Pump Relay Control

A6-A7

--

--

Not Used

A8

ORN

840

Battery Positive Voltage

A9

PNK

339

Ignition 1 Voltage

A9

PNK

339

Ignition 1 Voltage

A10

GRY

532

Cooling Fan Motor Ground

A11

--

--

Not Used

A12

PNK

639

Ignition 1 Voltage

A12

PNK

639

Ignition 1 Voltage (w/RPO L36, L67)

B1-B2

--

--

Not Used

B3

PNK

339

Ignition 1 Voltage (w/RPO L67)

B4

--

--

Not Used

B5

BLK/WHT

451

Ground

B6

--

--

Not Used

B7

PNK

1339

Ignition 1 Voltage

B8

--

--

Not Used

B9

PNK

339

Ignition 1 Voltage

B9

PNK

339

Ignition 1 Voltage

B10

YEL/BLK

68

Low Coolant Level Indicator Control

B11

--

--

Not Used

B12

PNK

639

Ignition 1 Voltage (w/RPO L36, L67)

B12

PMK

639

Ignition 1 Voltage (w/RPO L36, L67)

C1

BRN/WHT

419

MIL Control

C2-C3

--

--

Not Used

C4

BLK/WHT

451

Ground

C5-C9

--

--

Not Used

C10

DK BLU

473

High Speed Cooling Fan Relay Control

C11

BLK

1050

Ground

C12

PNK

639

Ignition 1 Voltage (w/RPO L36, L67)

C12

PNK

639

Ignition 1 Voltage (w/RPO L36, L67)

D1

--

--

Not Used

D2

ORN/BLK

434

Neutral Safety Switch Signal

D3

BRN

436

Air Pump Relay Control (w/RPO LG8, L36)

D4

BLK/ WHT

451

Ground

D5

BLK/ WHT

451

Ground

D8-D9

--

--

Not Used

D10

YEL

772

Transmission Range Switch Signal B

D10

YEL

772

Transmission Range Switch Signal B

D11

PNK

439

Ignition 1 Voltage

D12

TAN

31

Oil Pressure Indicator Control

E1

PNK

339

Ignition 1 Voltage (w/RPO L36)

E2

ORN

540

Battery Positive Voltage

E3

PPL

420

TCC Brake Switch Signal

E4

LT GRN

275

Park Neutral Position Switch Park Signal

E5

DK GRN

389

Vehicle Speed Signal

E5

DK GRN

389

Vehicle Speed Signal

E6

GRY

773

Transmission Range Switch Signal C

E6

GRY

773

Transmission Range Switch Signal C

E7

--

--

Not Used

E8

PNK

1239

Ignition 1 Voltage

E9-E11

--

--

Not Used

E12

ORN

2740

Battery Positive Voltage

F1

BRN/WHT

1173

Oil Level Indicator Control

F2

WHT

504

Cooling Fan Motor Supply Voltage

F3

DK GRN

335

Low Speed Cooling Fan Relay Control

F4

WHT

776

Transmission Range Switch Signal P

F4

WHT

776

Transmission Range Switch Signal P

F5

BRN

25

Charge Indicator Control

F6

WHT

121

Engine Speed Signal

F6

WHT

121

Engine Speed Signal

F7

DK GRN/WHT

459

A/C Clutch Relay Control

F8

DK GRN

59

A/C Compressor Clutch Supply Voltage

F9

PNK

239

Ignition 1 Voltage

F10

DK GRN

135

Coolant Temperature Sensor Signal

F11

LT BLU

409

Cooling Fan Motor Supply Voltage

F12

BLK/ WHT

771

Transmission Range Switch Signal A

F12

BLK/WHT

771

Transmission Range Switch Signal A

Fuse Block -- Underhood, Connector C2


Object Number: 280786  Size: CH

Connector Part Information

    • 15328719
    • 68-Way F Metri-Pack 280 Series Flex Lock (GRY)

Pin

Wire Color

Circuit No.

Function

A1

BRN/WHT

1173

Low Oil Level Indicator Control

A2-A3

--

--

Not Used

A4

WHT

776

Parity InputTransmission Range Switch Signal P

A5

BRN

25

Charge Indicator Control

A5

BRN

25

Charge Indicator Control (w/RPO U40)

A6

WHT

121

Engine Speed Signal

A7-A9

--

--

Not Used

A10

DK GRN

135

ECT Sensor Gauge Signal

A11

--

--

Not Used

A12

BLK/ WHT

771

Transmission Range Switch Signal A

B1-B2

--

--

Not Used

B3

ORN/ BLK

434

Neutral Safety Switch Signal

B4

LT GRN

275

Park Neutral Position Switch Park Signal

B4

LT GRN

275

Park Neutral Position Switch Park Signal

B5

GRY

120

Fuel Pump Supply Voltage

B6

GRY

773

Transmission Range Switch Signal C

B7-B9

--

--

Not Used

B10

YEL

772

Transmission Range Switch Signal B

B11-B12

--

--

Not Used

C1-C2

--

--

Not Used

C3

PPL

420

TCC Brake Switch Signal

C4

LT GRN

275

Park Neutral Position Switch Park Signal

C4

LT GRN

275

Park Neutral Position Switch Park Signal

C5

--

--

Not Used

C8

DK GRN

389

Vehicle Speed Signal

C8

DK GRN

389

Vehicle Speed Signal

C9

--

--

Not Used

C10

PNK

439

Ignition 1 Voltage

C11-C12

--

--

Not Used

D1-D2

--

--

Not Used

D3

DK GRN

35

Coolant Temperature Indicator Control

D3

DK GRN

35

Coolant Temperature Indicator Control (w/RPO U40)

D4

--

--

Not Used

D5

PNK

1339

Ignition 1 Voltage

D8-D9

--

--

Not Used

D10

YEL/BLK

68

Low Coolant Level Indicator Control

D11

TAN

31

Oil Pressure Indicator Control

D11

TAN

31

Oil Pressure Indicator Control (w/RPO U40)

D12

--

--

Not Used

E1

ORN

1340

Battery Positive Voltage

E2

--

--

Not Used

E3

BRN/WHT

419

MIL Control

E4

--

--

Not Used

E5

YEL

317

Fog Lamp Relay Coil Supply Voltage

E6

--

--

Not Used

E7

BLK

28

Horn Relay Control

E7

BLK

28

Horn Relay Control (w/o RPO UE1)

E8

DK GRN

389

Vehicle Speed Signa (w/RPO U40)

E8

DK GRN

389

Vehicle Speed Signa (w/RPO U40)

E9-E10

--

--

Not Used

E11

BLK/ WHT

174

Low Washer Fluid Indicator Supply Voltage

E12

--

--

Not Used

F1-F3

--

--

Not Used

F4

LT GRN

11

Headlamp High Beam Supply Voltage

F5-F6

--

--

Not Used

F7

ORN

640

Battery Positive Voltage

F8

TAN

12

Headlamp Low Beam Supply Voltage

F9

LT BLU

14

Left Turn Signal Lamps Supply Voltage

F10

DK BLU

15

Right Turn Signal Lamps Supply Voltage

F11

BRN

9

Park Lamp Supply Voltage

F12

RED

228

Windshield Washer Pump Control

Fuse Block-Underhood, Connector C3


Object Number: 280787  Size: CH

Connector Part Information

    • 15303512
    • 68-Way F Metri-Pack 280 Series Flex Lock (LT GRY)

Pin

Wire Color

Circuit No.

Function

A1

ORN

3040

Battery Positive Voltage (w/RPO NC1)

A2-A3

--

--

Not Used

A4

LT GRN

11

Headlamp High Beam Supply Voltage

A5

PPL

34

Front Fog Lamps Supply Voltage

A6

--

--

Not Used

A7

DK GRN

29

Horn Control

A8

TAN

12

Headlamp Low Beam Supply Voltage

A9

LT BLU

14

Left Turn Signal Lamps Supply Voltage

A10

DK BLU

15

Right Turn Signal Lamps Supply Voltage

A11

BRN

9

Park Lamp Supply Voltage

A12

RED

228

Windshield Washer Pump Control

B1-B3

--

--

Not Used

B4

LT GRN

11

Headlamp High Beam Supply Voltage

B5

PPL

34

Front Fog Lamps Supply Voltage

B6-B7

--

--

Not Used

B8

TAN

12

Headlamp Low Beam Supply Voltage

B9

LT BLU/BLK

14

Left Turn Signal Lamps Supply Voltage

B10

DK BLU/WHT

15

Right Turn Signal Lamps Supply Voltage

B11

BRN/WHT

9

Park Lamp Supply Voltage

B12

--

--

Not Used

C1-C8

--

--

Not Used

C9

PNK

339

Ignition 1 Voltage (w/RPO NC1)

C10

--

--

Not Used

C11

BRN

9

Park Lamp Supply Voltage

C12

--

--

Not Used

D1-D8

--

--

Not Used

D9

BRN

436

AIR Pump Relay Control (w/RPO NC1)

D10

--

--

Not Used

D11

BRN/WHT

9

Park Lamp Supply Voltage

D12

--

--

Not Used

E1-E8

--

--

Not Used

E9

PNK

339

Ignition 1 Voltage (w/RPO NC1)

E10

--

--

Not Used

E11

BLK/WHT

174

Low Washer Fluid Indicator Supply Voltage

E12

--

--

Not Used

F1-F8

--

--

Not Used

F9

PNK

339

Ignition 1 Voltage (w/RPO NC1)

F10-F12

--

--

Not Used

Fuse Block-Underhood, Connector C4


Object Number: 280788  Size: CH

Connector Part Information

    • 12146038
    • 2-Way F MaxiFuse (GRY)

Pin

Wire Color

Circuit No.

Function

A

RED

242

Battery Positive Voltage

B

RED

142

Battery Positive Voltage

B

RED

142

Battery Positive Voltage

Fuse Block-Underhood, Connector C5


Object Number: 258677  Size: CH

Connector Part Information

    • 12146037
    • 2-Way F MaxiFuse (BLK)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

RED

42

Battery Positive Voltage

Fuse Block-Underhood, Connector C6


Object Number: 280790  Size: CH

Connector Part Information

    • 12160605
    • 2-Way F MaxiFuse (GRN)

Pin

Wire Color

Circuit No.

Function

A

RED

642

Battery Positive Voltage

A

RED

642

Battery Positive Voltage

B

RED

742

Battery Positive Voltage

B

RED

742

Battery Positive Voltage