GM Service Manual Online
For 1990-2009 cars only
Table 1: Auxiliary Power Output, LH
Table 2: Auxiliary Power Outlet, RH
Table 3: Auxiliary Power Outlet Floor Console (Envoy Only)
Table 4: Auxiliary Power Outlet, Rear (Envoy Only)
Table 5: Body Relay Block
Table 6: Cigar Lighter
Table 7: IP Fuse Block
Table 8: Underhood Fuse Block Connector C1
Table 9: Underhood Fuse Block Connector C2
Table 10: Underhood Fuse Block Connector C3
Table 11: Underhood Fuse Block Connector C4
Table 12: Underhood Fuse Block Connector C5
Table 13: Underhood Fuse Block Connector C6

Auxiliary Power Output, LH


Object Number: 258167  Size: CH

Connector Part Information

    • 12033934
    • 2-Way F 56 Series, (MD GRY)

Pin

Wire Color

Circuit No.

Function

A

ORN

1040

Fuse Output - Battery

B

BLK

1050

Ground

Auxiliary Power Outlet, RH


Object Number: 258167  Size: CH

Connector Part Information

    • 12033934
    • 2-Way F 56 Series (MD GRY)

Pin

Wire Color

Circuit No.

Function

A

ORN

1040

Fuse Output - Battery

B

BLK

1050

Ground

Auxiliary Power Outlet Floor Console (Envoy Only)


Object Number: 320518  Size: CH

Connector Part Information

    • 12176446
    • 3-Way F Metri-Pack 280 Series, Flex Lock (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

1040

Fuse Output - Battery

B

--

--

Not Used

C

BLK

1050

Ground

Auxiliary Power Outlet, Rear (Envoy Only)


Object Number: 320518  Size: CH

Connector Part Information

    • 12176446
    • 2-Way F S6 Series Lock Type (GRY)

Pin

Wire Color

Circuit No.

Function

A

ORN

1040

Fuse Output - Battery

B

BLK

1350

Ground

C

--

--

Not Used

Body Relay Block


Object Number: 365994  Size: CH

Connector Part Information

    • 12193905
    • 68-Way F Metri-Pack 280 Series, Flex Lock (GRY)

Pin

Wire Color

Circuit No.

Function

A1

BRN/WHT

379

Cruise Control Clutch Pedal Switch Output

A1

BRN/WHT

379

Cruise Control Clutch Pedal Switch Output

A2

ORN

40

Fuse Output - Battery

A3

--

--

Not Used

A4

ORN

40

Fuse Output - Battery

A5

ORN

40

Fuse Output - Battery

A6

BLK/WHT

451

Engine Control Module Ground

A7

LT BLU

195

Power Door Relay Feed - Lock Coil

A7

LT BLU

195

Power Door Relay Feed - Lock Coil

A8

--

--

Not Used

A9

LT BLU

195

Power Door Relay Feed - Lock Coil

A10

BLK

552

Sensor Return

A10

BLK

552

Sensor Return

A11

YEL

10

Headlamp Switch Output (Except Envoy)

A11

ORN

3640

Fuse Output - Battery (Envoy)

A12

--

--

Not Used (Except Envoy)

A12

WHT

352

Headlamp Relay Feed - Coil (Envoy)

B1

ORN

1440

Fuse Output - Battery (w/ Auto A/C)

B2

BRN/WHT

379

Cruise Control Clutch Pedal Switch Output

B2

BRN/WHT

379

Cruise Control Clutch Pedal Switch Output

B3

DK GRN

1001

Fuse Output - Retained Accessory Power

B4

BLK/WHT

451

Engine Control Module Ground

B4

BLK/WHT

451

Engine Control Module Ground

B5

BLK/WHT

451

Engine Control Module Ground

B6

BLK/WHT

451

Engine Control Module Ground

B7

BLK/WHT

451

Engine Control Module Ground

B8

--

--

Not Used

B9

GRY

295

Door Lock Actuator

B9

GRY

295

Door Lock Actuator

B10

BLK

552

Sensor Return

B10

BLK

552

Sensor Return

B11

LT BLU

195

Power Door Relay Feed - Lock Coil

B12

BLK

1850

Ground (Except Envoy

B12

BLK/WHT

1969

High Beam Headlamp Relay Output - Coil

C1

--

--

Not Used

C2

WHT

156

Courtesy Lamp Output (w/Auto A/C)

C3

DK GRN

1001

Fuse Output - Retained Accessory Power (Pickup)

C4

DK BLU

1393

Interior Lamp Relay Output - Coil

C5

ORN

1732

Electronic Control Unit Output - 12 Volt Inadvertent Load Control

C6-C7

--

--

Not Used

C8

BLK

1850

Ground

C9

GRY

295

Power Door Lock Motor Feed - Lock

C10

--

--

Not Used

C11

LT GRN/BLK

592

Daytime Running Lamp Relay Output - Coil (Except Envoy)

C11

BLK/WHT

1969

High Beam Headlamp Relay Output - Coil (Envoy)

C11

BLK/WHT

1969

High Beam Headlamp Relay Output - Coil (Envoy)

C12

--

--

Not Used (Except Envoy)

C12

LT BLU

1346

Headlamp Relay Output - N.O. Contact (Envoy)

D1

--

--

Not Used

D2

BRN

4

Ignition Switch Output - Accessory

D3

DK GRN

1001

Fuse Output - Retained Accessory Power (Utility)

D4

WHT

156

Courtesy Lamp Output

D5-D7

--

--

Not Used

D8

TAN

294

Power Door Lock Motor Feed - Unlock

D8

TAN

294

Power Door Lock Motor Feed - Unlock

D9

BLK

1850

Ground (Utility)

D10

WHT

194

Power Door Lock Relay Feed - Unlock Coil (Utility)

D11

BLK/WHT

56

Trunk Release Motor Feed

D11

BLK/WHT

56

Trunk Release Motor Feed

D12

BLK/WHT

56

Trunk Release Motor Feed

E1

RED

542

Fuse Output - Battery

E2

BLK

755

Delayed Accessory Bus Relay Output - Coil - Accessory Relay

E3

BRN

4

Ignition Switch Output - Accessory

E4

WHT

156

Courtesy Lamp Output

E5

ORN

1732

Electronic Control Unit Output - 12 Volt Inadvertent Load Control

E5

ORN

1732

Electronic Control Unit Output - 12 Volt Inadvertent Load Control

E6

LT BLU

74

Park Lamp Switch Output

E6

LT BLU

74

Park Lamp Switch Output

E7

--

--

Not Used

E8

WHT

194

Power Door Lock Relay Feed - Unlock Coil

E9

--

--

Not Used

E10

TAN

694

Driver Door Actuator

E11

LT GRN

1391

Driver Door Unlock Relay

E12

ORN

840

Fuse Output - Battery

F1-F2

--

--

Not Used

F3

DK BLU

75

Delayed Accessory Bus Relay Output - Common Contact - Accessory

F4

GRY/BLK

690

Courtesy Lamp Relay Output - Coil

F5

--

--

Not Used

F6

WHT

1080

Park Lamp Relay Output - Coil

F7

ORN

240

Fuse Output - Battery

F8

WHT

194

Power Door Lock Relay Feed - Unlock Coil

F9

ORN

1740

Fuse Output - Battery

F10

ORN

840

Fuse Output - Battery (Utility Only)

F11

--

--

Not Used

F12

ORN

840

Fuse Output - Battery (Utility Only)

Cigar Lighter


Object Number: 38228  Size: CH

Connector Part Information

    • 12047699
    • 2-Way Pull to Seat (GRY)

Pin

Wire Color

Circuit No.

Function

A

ORN

640

Fuse Output - Battery

B

BLK

1050

Ground

IP Fuse Block


Object Number: 39797  Size: CH

Connector Part Information

    • 12110746
    • Fuse Block Assembly Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A2-A7

--

--

Not Used

B2

RED

642

Fuse Output - Battery

B4-B8

--

--

Not Used

C1

ORN

340

Fuse Output - Battery

C1

ORN

340

Fuse Output - Battery (Bravada)

C3

ORN

1040

Fuse Output - Battery

C5

ORN

1940

Fuse Output - Battery

C7

--

--

Not Used

D2

RED

642

Fuse Output - Battery

D4-6,8

--

--

Not Used

E1

ORN

1340

Fuse Output - Battery (Envoy Only)

E3

ORN

1740

Fuse Output - Battery

E5

ORN

40

Fuse Output - Battery

E7

ORN

640

Fuse Output - Battery

G1

BRN

341

Fuse Output - Ignition

E7

ORN

640

Fuse Output - Battery

F2

ORN

300

Ignition Switch Output - Ignition

F4-6,8

--

--

Not Used

G1

BRN

341

Fuse Output - Ignition

G1

BRN

341

Fuse Output - Ignition (w/ HVAC)

G3

BRN

241

Backup Lamp Feed

G3

BRN

241

Backup Lamp Feed (w/ E09)

G5

BRN

141

Fuse Output - Ignition 3 - Type III Fuse

G7

BRN

41

Ignition Switch Output - Accessory

H2

ORN

300

Ignition Switch Output - Ignition

H4-6

--

--

Not Used

H8

PNK

3

Ignition Switch Output - Ignition 1 (Utility Only)

J1

BRN

441

Ignition Switch Output - Accessory

J3

YEL

1139

Fuse Output - Ignition

J5

PNK

139

Fuse Output - Ignition

J7

PNK

39

Fuse Output - Ignition

J7

PNK

39

Fuse Output - Ignition (w/ C68)

K2

BRN

4

Ignition Switch Output - Accessory

K4

--

--

Not Used

K6

WHT

1390

Fuse Output - Ignition

K8

LT BLU

74

Park Lamp Switch Output

L1

YEL

43

Ignition Switch Output - Accessory (Utility)

L3

YEL

143

Fuse Output - Accessory

L5

PNK

1020

Fuse Output - Off/RUN/Crank

L7

BRN

2409

Fuse Output - Interior Park Lamps - Type III Fuse

M2

DK BLU

75

Delayed Accessory Bus Relay Output - Common Contact - Accessory

M4

--

--

Not Used

M6

DK GRN

44

Ignition Switch Output - Accessory

M8

--

--

Not Used

N1

DK GRN

1301

Fuse Output - Retained Accessory Power - Type III Fuse

N1

DK GRN

1301

Fuse Output - Retained Accessory Power - Type III Fuse

N3

DK GRN

801

Not Used

N5

GRY

1220

Fuse Output - Interior Park Lamps

N7

BRN

1244

Instrument Panel Lamp Feed #2 (Utility)

Underhood Fuse Block Connector C1


Object Number: 365994  Size: CH

Connector Part Information

    • 12193905
    • 68-Way F Metri-Pack 280 Series, Flex Lock (GRY)

Pin

Wire Color

Circuit No.

Function

A1

ORN/BLK

2240

Fuse Output - Battery

A2

ORN

740

Fuse Output - Battery

A3

PPL

524

Headlamp Dimmer Switch Output - High Beam (Except Envoy)

A4

LT BLU

74

Park Lamp Switch

A5

ORN

840

Fuse Output - Battery - Type III Fuse

A6

WHT

352

Headlamp Relay Feed - Coil (Except Envoy)

A7

BLK

350

Ground

A8

BRN

2509

Fuse Output - Park Lamp - Left Rear (Utility)

A9

PNK

3

Ignition Switch Output - Ignition 1

A10

ORN

1840

Fuse Output - Battery

A11

PPL/WHT

1035

Starter Relay Feed - Coil

A12

--

--

Not Used

B1

YEL/BLK

895

CHMSL Relay Output - Common Contact

B2

WHT

103

Headlamp Switch Signal - Headlamps ON (Envoy Only)

B3

DK GRN/WHT

1317

Fog Lamp Relay Output - Coil (Except Envoy)

B4

PPL

34

Fog Lamp Feed

B5

LT BLU

1344

Trunk Release Relay - Output

B6

BLK/WHT

56

Trunk Release Motor Feed

B7

BLK

350

Ground

B8

PPL

1093

Fuse Output - Rear Defogger Element

B9

--

--

Not Used

B10

PNK

439

Fuse Output - Ignition

B11

RED

242

Fuse Output - Battery

B12

ORN

240

Fuse Output - Battery

C1

DK BLU/WHT

1415

Turn Signal Switch Output - Right Front

C2

LT BLU/WHT

1414

Turn Signal Switch Output - Left Front

C3

PPL

806

Fuse Output - Crank

C4

--

--

Not Used

C5

LT GRN/BLK

592

Daytime Running Lamp Relay Output - Coil

C6-C8

--

--

Not Used

C9

--

--

Not Used (Except Envoy)

C9

ORN

3640

Fuse Output - Battery (Envoy)

C10

DK GRN/WHT

1419

Turn Signal Switch Output - Right Rear

C11-D2

--

--

Not Used

D3

YEL

5

Ignition Switch Output - Crank

D4

ORN

1140

Fuse Output - Battery - Type III Fuse

D5

ORN

1640

Fuse Output - Battery - Type III Fuse

D6-D8

--

--

Not Used

D9

PNK

639

Fuse Output - Ignition 1 - Type III Fuse (Envoy Only)

D10

DK GRN

619

Fuse Output - Turn/Stop Lamp - Right Rear

D11

WHT

17

Stoplamp Switch Output

D12

ORN

540

Fuse Output - Battery

E1

ORN

1240

Fuse Output - Battery

E2

ORN

1540

Fuse Output - Battery

E3

BLK

28

Horn Relay Output - Coil

E4

ORN

1140

Fuse Output - Battery

E5

ORN

1640

Fuse Output - Battery - Type III Fuse

E6

--

--

Not Used

E7

BLK/WHT

451

Engine Control Module Ground

E8

BLK/WHT

451

Engine Control Module Ground

E9

BRN/WHT

2609

Fuse Output - Park Lamp - Right Rear (Utility)

E10

YEL

618

Fuse Output - Turn/Stop Lamp - Left - Rear

E11-F2

--

--

Not Used

F3

LT GRN

1324

Fuse Output - Backup Lamps

F4

YEL

525

Headlamp Dimmer Switch Output - Low Beam (Except Envoy)

F5

--

--

Not Used

F6

ORN

2267

Fuse Output - Heater Mirror

F7

DK GRN/WHT

465

Fuel Pump Relay Feed - Coil

F8

WHT

193

Rear Defogger Relay Output - Coil

F9

--

--

Not Used

F10

YEL/BLK

1418

Turn Signal Switch Output - Left Rear

F11

LT BLU

1320

Fuse Output - HMSL

F12

ORN

140

Fuse Output - Battery

Underhood Fuse Block Connector C2


Object Number: 362761  Size: CH

Connector Part Information

    • 12193906
    • 68-Way F Metri-Pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A1-A5

--

--

Not Used

A6

BLK

350

Ground (Except Envoy)

A7

GRY

120

Fuel Pump Motor Feed (2.2L)

A8

ORN

440

Fuse Output - Battery

A9

PNK

239

Fuse Output - Ignition 1 (4.3L)

A9

PNK

239

Fuse Output - Ignition 1 (4.3L)

A10

PNK

439

Fuse Output - Ignition

A11-B6

--

--

Not Used

B7

DK GRN/WHT

465

Fuel Pump Relay Feed - Coil

B8

ORN

440

Fuse Output - Battery

B9

PNK

239

Fuse Output - Ignition

B10

PNK

439

Fuse Output - Ignition

B10

PNK

439

Fuse Output - Ignition

B11

GRY

1524

Backup Lamp Feed - Monitored

B12

LT GRN

275

Transmission Mounted Neutral Safety Switch Output - Park (w/ M30)

C1-C7

--

--

Not Used

C8

PNK

839

Fuse Output - Ignition

C9

--

--

Not Used

C10

PNK

439

Fuse Output - Ignition 1 (4.3L)

C10

PNK

439

Fuse Output - Ignition 1 (4.3L)

C11

--

--

Not Used

C12

LT GRN/BLK

584

Fuse Output - Brake Transmission Shift Interlock (w/ M30)

D1-D2

--

--

Not Used

D3

DK GRN/WHT

459

Air Conditioning Compressor Control Relay Output

D4

DK GRN

59

Air Conditioning Compressor Clutch Solenoid

D5-9

--

--

Not Used

D10

PNK

439

Fuse Output - Ignition 1

D10

PNK

439

Fuse Output - Ignition 1 (4.3L)

D11

PPL

6

Starter Solenoid Feed

D12

--

--

Not Used (w/o A/C)

D12

BLK/WHT

350

Ground (w/ A/C)

E1

--

--

Not Used

E2

PPL

806

Fuse Output - Crank

E3-E6

--

--

Not Used

E7

BLK/WHT

451

Engine Control Module Ground

E8

PNK

639

Fuse Output - Ignition 1 - Type III Fuse

E9

--

--

Not Used

E10

PNK

439

Fuse Output - Ignition 1 (4.3L)

E10

PNK

439

Fuse Output - Ignition 1 (4.3L)

E11-F6

--

--

Not Used

F7

BLK

350

Ground

F8

--

--

Not Used

F9

PNK

539

Fuse Output - Ignition

F10

PNK

439

Fuse Output Ignition 1

F11

PPL/WHT

1035

Starter Relay Feed - Coil (w/M30)

F12

--

--

Not Used

Underhood Fuse Block Connector C3


Object Number: 362759  Size: CH

Connector Part Information

    • 12193916
    • 32-Way F Metri-Pack 280 Series (RED)

Pin

Wire Color

Circuit No.

Function

A1-A3

--

--

Not Used

A4

LT GRN

1624

Fuse Output - Trailer Backup Lamp (Utility)

A5

DK GRN

1619

Fuse Output - Trailer Turn/Stop Lamp - Right Rear

A6

YEL

1618

Fuse Output - Trailer Turn/Stop Lamp - Left Rear

B1-B2

--

--

Not Used

B3

LT GRN

1324

Fuse Output - Backup Lamps

B4-B6

--

--

Not Used

C1

BRN

2509

Fuse Output - Park Lamp - Left Rear

C2-C4

--

--

Not Used

C5

DK GRN

619

Fuse Output - Turn/Stop Lamp - Right Rear

C6

--

--

Not Used

D1

BRN

2109

Fuse Output - Trailer Park Lamp

D2

BRN/WHT

2609

Fuse Output - Park Lamp - Right Rear

D3-5

--

--

Not Used

D6

YEL

618

Fuse Output - Turn/Stop Lamp Left Rear

E1-E3

--

--

Not Used

E4

LT BLU

1620

Fuse Output - Trailer CHMSL (Utility)

E5-E6

--

--

Not Used

F1

GRY

120

Fuel Pump Motor Feed

F2

--

--

Not Used

F3

PNK

239

Fuse Ouput - Ignition

F4-F6

--

--

Not Used

Underhood Fuse Block Connector C4


Object Number: 362760  Size: CH

Connector Part Information

    • 12193914
    • 32-Way F Metri-Pack 280 Series (GRN)

Pin

Wire Color

Circuit No.

Function

A1

--

--

Not Used

A2

DK GRN/WHT

711

High Beam Headlamp Feed - Left (Except Envoy)

A2

LT GRN

1193

Headlamp Output - High Beam - Right (Envoy)

A3

PNK

639

Fuse Output - Ignition 1

A4-A5

--

--

Not Used (Except Envoy)

A4

LT BLU

1346

Headlamp Relay Output - N. O. Contact (Envoy)

A5

LT GRN/BLK

311

High Beam Headlamp Feed - Right (Envoy)

A6

DK GRN

1329

Fuse Output - Horn

A6

DK GRN

1329

Fuse Output - Horn

B1

YEL/BLK

712

Low Beam Headlamp Feed - Left

B1

TAN

312

Low Beam Headlamp Feed - Right (Envoy)

B2

DK BLU

198

Fuse Output - Head Lamp - Right (Except Envoy)

B2

DK BLU

198

Fuse Output - Head Lamp - Right (Except Envoy)

B2

YEL

712

Low Beam Headlamp Feed - Left (Envoy)

B3

--

--

Not Used

B4

PPL

524

Headlamp Dimmer Switch Output - High Beam (Except Envoy)

B4

PPL

524

Headlamp Dimmer Switch Output - High Beam (Except Envoy)

B4

DK GRN/WHT

711

High Beam Headlamp Feed - Left (Envoy)

B5

BRN

2309

Fuse Output - Park Lamp - Front

B5

BRN

2309

Fuse Output - Park Lamp - Front

B6

--

--

Not Used

C1-C4

--

--

Not Used

C5

BRN

2309

Fuse Output - Park Lamp Front

C5

BRN

2309

Fuse Output - Park Lamp Front

C6

--

--

Not Used

D1-E1

--

--

Not Used

E2

PPL

34

Fog Lamp Feed

E2

PPL

34

Fog Lamp Feed

E3-E4

--

--

Not Used

E5

LT BLU

2114

Fuse Output - Turn Lamp - Left Front

E5

LT BLU

2114

Fuse Output - Turn Lamp - Left Front

E6

--

--

Not Used

F1-F2

--

--

Not Used

F3

YEL

525

Headlamp Dimmer Switch Output - Low Beam

F3

YEL

525

Headlamp Dimmer Switch Output - Low Beam

F4

DK BLU

2115

Fuse Output - Turn Lamp - Right Front

F4

DK BLU

2115

Fuse Output - Turn Lamp - Right Front

F5-F6

--

--

Not Used

Underhood Fuse Block Connector C5


Object Number: 258677  Size: CH

Connector Part Information

    • 12146037
    • 2-Way F Maxi - Fuse (BLK)

Pin

Wire Color

Circuit No.

Function

A

RED

542

Fuse Output - Battery

B

RED

342

Fuse Output - Battery

Underhood Fuse Block Connector C6


Object Number: 280788  Size: CH

Connector Part Information

    • 280788
    • 2-Way F Maxi - Fuse (GRY)

Pin

Wire Color

Circuit No.

Function

A

RED

442

Fuse Output - Battery

B

RED

642

Fuse Output - Battery