GM Service Manual Online
For 1990-2009 cars only
Table 1: Roof Console Accessory Power Receptacle
Table 2: Floor Console Accessory Power Receptacle
Table 3: Cigar Lighter
Table 4: Underhood Accessory Wiring Junction Block C1
Table 5: Underhood Accessory Wiring Junction Block C2
Table 6: Underhood Accessory Wiring Junction Block C3
Table 7: Underhood Accessory Wiring Junction Block C4
Table 8: Underhood Accessory Wiring Junction Block C5
Table 9: Underhood Accessory Wiring Junction Block C6

Roof Console Accessory Power Receptacle


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

2540

Fused Output-Battery

B

BLK

350

Ground

Floor Console Accessory Power Receptacle


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

Fused Output-Battery

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 (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

440

Fused Output-Battery

B

BLK

1440

Ground

Underhood Accessory Wiring Junction Block 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

Hot Engine Coolant Indicator Control

A2

LT GRN

1058

Fuel Pump Resistor Feed

A3

LT GRN

465

Fuel Pump Speed Control (Relay Control)

A4

--

--

Not Used

A5

DK GRN/WHT

465

Fuel Pump Relay (Coil) Control

A6-7

--

--

Not Used

A8

ORN

840

Fused Battery Feed

A9

PNK

339

Fused Ignition 1 Feed HO2S

A10

GRY

532

Engine Coolant Fan 1 Return

A11

--

--

Not Used

A12

PNK

639

Fused Ignition Feed

B1

--

--

Not Used

B2

GRY

120

Fuel Pump Feed

B3-4

--

--

Not Used

B5

BLK/WHT

451

Oil Indicator Switch Ground

B6

--

--

Not Used

B7

PNK

1339

Fused Ignition 1 Feed

B8

--

--

Not Used

B9

PNK

339

Fuse Ignition 1 Feed

B10

YEL/BLK

68

Low Coolant Indicator Control

B11

--

--

Not Used

B12

PNK

639

Fused Ignition Feed (VIN K & VIN 1)

C1

BRN/WHT

419

MIL Control

C2-3

--

--

Not Used

C4

BLK/WHT

451

PCM & Sensor Ground

C5-9

--

--

Not Used

C10

DK BLU

473

Coolant Fan 2 Relay Control

C11

BLK

1050

Ground

C12

PNK

639

Fused Ignition Feed (VIN K % VIN 1)

D1

--

--

Not Used

D2

ORN/BLK

434

Park/Neutral Input

D3

--

--

Not Used

D4

BLK/ WHT

451

PCM & Sensor Ground

D5

BLK/ WHT

451

PCM & Sensor

D8

--

--

Not Used

D9

PNK

339

Fused Ignition Feed/Boost Control Solenoid

D10

YEL

772

Transaxle Range (TR) Switch B

D11

PNK

439

Fused Ignition 1 Feed

D12

TAN

31

Engine Oil Pressure Indicator Lamp Feed

E1

--

--

Not Used

E2

ORN

540

Fused Battery Feed

E3

PPL

420

Stop Lamp Switch-TCC Control

E4

LT GRN

275

Transaxle Range Switch Feed-PARK

E5

DK GRN

389

Vehicle Speed Signal - 4000 Pulses per Mile

E6

GRY

773

Transaxle Range (TR) Switch C

E7

--

--

Not Used

E8

PNK

1239

Fused Ignition 1 Feed

E9-11

--

--

Not Used

E12

ORN

2740

Fused Battery Feed

F1

BRN/WHT

1173

Oil Level Indicator Control

F2

WHT

504

Engine Coolant Fan 1 Feed

F3

DK GRN

335

Coolant Fan Relay Output-Coil

F4

WHT

776

Parity Input

F5

BRN

25

Charge Indicator Lamp Feed

F6

WHT

121

Tachometer Signal

F7

DK GRN/WHT

459

A/C Compressor Relay Output (Coil)

F8

DK GRN

59

A/C Compressor Clutch Solenoid Feed

F9

PNK

239

Fused Ignition 1 Feed

F10

DK GRN

135

Engine Coolant Temperature Gauge Input

F11

LT BLU

409

Engine Coolant Fan Motor 2 Feed

F12

BLK/ WHT

771

Transaxle Range (TR) Switch A

Underhood Accessory Wiring Junction Block C2


Object Number: 280786  Size: CH

Connector Part Information

    • 15303514
    • 68 Way F Metri-Pack 280 Series Flex Lock (BRN)

Pin

Wire Color

Circuit No.

Function

A1

BRN/WHT

1173

Oil Level Indicator Control

A2-3

--

--

Not Used

A4

WHT

776

Parity Input

A5

BRN

25

Charge Indicator Lamp Feed

A6

WHT

121

Tachometer Signal

A7-9

--

--

Not Used

A10

DK GRN

135

Engine Coolant Temperature Gauge Input

A11

--

--

Not Used

A12

BLK/ WHT

771

Transaxle Range (TR) Switch A

B1-2

--

--

Not Used

B3

ORN/ BLK

434

Park/Neutral Input

B4

LT GRN

275

Transaxle Range Switch Feed-PARK

B5

GRY

120

Fuel Pump Motor Feed

B6

GRY

773

Transaxle Range (TR) Switch C

B7-9

--

--

Not Used

B10

YEL

772

Transaxle Range (TR) Switch B

B11-C2

--

--

Not Used

C3

PPL

420

Stop Lamp Switch-TCC Control

C4

LT GRN

275

Transaxle Range Switch Feed-PARK

C5-7

--

--

Not Used

C8

DK GRN

389

Vehicle Speed Signal - 4000 Pulses per Mile

C9

--

--

Not Used

C10

PNK

439

Fused Ignition 1 Feed

C11-D2

--

--

Not Used

D3

DK GRN

35

Engine Coolant Temperature Input

D4

--

--

Not Used

D5

PNK

1339

Fused Ignition 1 Feed

D8-9

--

--

Not Used

D10

YEL/BLK

68

Low Coolant Indicator Control

D11

TAN

31

Engine Oil Pressure Indicator Lamp Feed

D12

--

--

Not Used

E1

ORN

1340

Fused Battery Feed

E2

--

--

Not Used

E3

BRN/WHT

419

MIL Control

E4

--

--

Not Used

E5

YEL

317

Fog Lamp Relay Feed-Coil

E6

--

--

Not Used

E7

BLK

28

Horn Relay Output-Coil

E8

DK GRN

389

Vehicle Speed Signal - 4000 Pulses per Mile

E9-10

--

--

Not Used

E11

BLK/ WHT

174

Low Washer Fluid Indicator Lamp Feed

E12-F2

--

--

Not Used

F3

WHT

85

Cruise Engaged Output

F4

LT GRN

11

Hi Beam Indicator Lamp Feed

F5-6

--

--

Not Used

F7

ORN

640

Fused Battery Feed

F8

TAN

12

Low Beam Headlamp Feed

F9

LT BLU

14

Turn Signal Lamp Feed-Right Front

F10

DK BLU

15

Turn Signal Lamp Feed-Right Front

F11

BRN

9

Park Lamp Feed

F12

RED

228

Windshield Washer Pump Motor Feed

Underhood Accessory Wiring Junction Block C3


Object Number: 280787  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A1-3

--

--

Not Used

A4

LT GRN

11

High Beam Headlamp Feed

A5

PPL

34

Fog Lamp Feed

A6

--

--

Not Used

A7

DK GRN

29

Horn Feed

A8

TAN

12

Low Beam Headlamp Feed

A9

LT BLU

14

Turn Signal Lamp Feed-Left Front

A10

DK BLU

15

Turn Signal Lamp Feed-Right Front

A11

BRN

9

Park Lamp Feed

A12

RED

228

Windshield Washer Pump Motor Feed

B1-3

--

--

Not Used

B4

LT GRN

11

High Beam Headlamp Feed

B5

PPL

34

Fog Lamp Feed

B6-7

--

--

Not Used

B8

TAN

12

Low Beam Headlamp Feed

B9

LT BLU/BLK

14

Turn Signal Lamp Feed-Left Front

B10

DK BLU/WHT

15

Turn Signal Lamp Feed-Right Front

B11

BRN/WHT

9

Park Lamp Feed

B12-C10

--

--

Not Used

C11

BRN

9

Park Lamp Feed

C12-D10

--

--

Not Used

D11

BRN/WHT

9

Park Lamp Feed

D12-E10

--

--

Not Used

E11

BLK WHT

174

Low Washer Fluid Indicator Lamp Feed

E12-F12

--

--

Not Used

Underhood Accessory Wiring Junction Block C4


Object Number: 280788  Size: CH

Connector Part Information

    • 12146038
    • 2-Way F MaxiFuse (GRY)

Pin

Wire Color

Circuit No.

Function

A

RED

242

Fused Battery Feed

B

RED

142

Fused Battery Feed (with RAP)

Underhood Accessory Wiring Junction Block 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

Fused Battery Feed

Underhood Accessory Wiring Junction Block C6


Object Number: 280790  Size: CH

Connector Part Information

    • 12160605
    • 2-Way F MaxiFuse (GRN)

Pin

Wire Color

Circuit No.

Function

A

RED

642

Fused Battery Feed

B

RED

742

Fused Battery Feed