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

Auxiliary Power Output, LH/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 Bussed Electrical Center


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

--

--

Not Used

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

A8

--

--

Not Used

A9

LT BLU

195

Power Door Relay Feed - Lock Coil

A10

--

--

Not Used

A11

WHT

1080

Park Lamp Relay Output - Coil

A11

ORN

3640

Fuse Output - Battery - Type III Fuse (Envoy Only)

A12

BLK

552

Sensor Return (w/ Auto A/C)

B1

ORN

1440

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

B2

--

--

Not Used

B3

DK GRN

1001

Fuse Output - Retained Accessory Power

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

B10

--

--

Not Used

B11

LT BLU

195

Power Door Relay Feed - Lock Coil

B12

BLK

552

Sensor Return (w/ Auto A/C)

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

C8

BLK

1850

Ground

C9

GRY

295

Power Door Lock Motor Feed - Lock

C10

ORN

240

Fuse Output - Battery

C11

LT BLU

74

Park Lamp Switch Output

C12

--

--

Not Used

C12

LT BLU

1346

Headlamp Realy Output - N.O. Contact (Envoy Only)

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

ORN

840

Fuse Output - Battery (Utility)

D8

TAM

294

Power Door Lock Motor Feed - Unlock

D9

BLK

1850

Ground (Utility)

D10

WHT

194

Power Door Lock Relay Feed - Unlock Coil (Utility)

D11-D12

--

--

Not Used

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

E6

BLK/WHT

56

Trunk Release Motor Feed (w/ Power Locks)

E7

ORN

840

Fuse Output - Battery

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 - Type III Fuse

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

BLK/WHT

56

Trunk Release Motor Feed (w/ Power Door Locks)

F6

LT BLU

1344

Trunk Release Relay Output - Coil (w/ Power Locks)

F7

ORN

840

Fuse Output - Battery

F8

WHT

295

Power Door Lock Relay Feed - Unlock Coil

F9

ORN

1740

Fuse Output - Battery

F10

--

--

Not Used

F10

ORN

840

Fuse Output - Battery - Type III Fuse

F11

--

--

Not Used

F12

ORN

840

Fuse Output - Battery - Type III Fuse (Utility)

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

C6, 7

--

--

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

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

GRY

1390

Fuse Output - Ignition

K8

LT BLU

74

Park Lamp Switch Output

K8

LT BLU

74

Park Lamp Switch Output

L1

YEL

43

Ignition Switch Output - Accessory

L3

YEL

143

Fuse Output - Accessory

L5

PNK

1020

Fuse Output - Off/RUN/Crank

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

Underhood Bussed Electrical Center 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

2240

Fuse Output - Battery

A2

ORN

740

Fuse Output - Battery

A3

PPL

524

Headlamp Dimmer Switch Output - High Beam

A4

LT BLU

74

Park Lamp Switch

A5

ORN

840

Fuse Output - Battery - Type III Fuse

A6

LT GRN/BLK

592

Daytime Running Lamp Relay Output - Coil

A7

BLK

350

Ground

A8

BRN

2509

Fuse Output - Park Lamp - Left Rear (Utility)

A9

PNK

3

Ignition Switch Output - Ignition 1

A10

DK GRN/WHT

465

Fuel Pump Relay Feed - Coil

A11

PPL/WHT

1035

Starter Relay Feed - Coil

A12-B2

--

--

Not Used

B3

DK GRN/WHT

1317

Fog Lamp Relay Output - Coil

B4

PPL

34

Fog Lamp Feed

B5

--

--

Not Used

B6

YEL

10

Headlamp Switch Output

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

--

--

Not Used

C2

--

--

Not Used

C3

PPL

806

Fuse Output - Crank

C4

--

--

Not Used

C5

WHT

352

Headlamp Relay Feed - Coil

C8

--

--

Not Used

C9

ORN

1640

Fuse Output - Battery

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

Stop Lamp 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

Ground

E8

BLK/WHT

451

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

DK BLU/WHT

1415

Turn Switch Output - Right Front

F5

LT BLU/WHT

1414

Fuse Output - Ignition

F6

ORN

2267

Fuse Output - Heater Mirror

F7

YEL

525

Headlamp Dimmer Switch Output - Low Beam

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 Bussed Electrical Center 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-A6

--

--

Not Used

A7

GRY

120

Fuel Pump Motor Feed (2.2L)

A8

ORN

440

Fuse Output - Battery

A9

PNK

239

Fuse Output - Ignition 1 - Type III Fuse (4.3L)

A9

PNK

239

Fuse Output - Ignition 1 - Type III Fuse (4.3L)

A10

PNK

439

Fuse Output - Ignition (2.2L)

A11-A12

--

--

Not Used

B1-B2

--

--

Not Used

B3

DK GRN

59

Air Conditioning Compressor Clutch Solenoid Feed

B4

DK GRN/WHT

459

Air Conditioning Compressor Control Relay Output - Coil

B5-B6

--

--

Not Used

B7

DK GRN/WHT

465

Fuel Pump Relay Feed - Coil

B8

--

--

Not Used

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 - Type III Fuse (4.3L)

C10

PNK

439

Fuse Output - Ignition 1 - Type III Fuse (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 - Type III Fuse

D10

PNK

439

Fuse Output - Ignition 1 - Type III Fuse (4.3L)

D11

PPL

6

Starter Solenoid Feed

D12

BLK/WHT

350

Ground

E1-E6

--

--

Not Used

E7

BLK/WHT

451

Ground

E8

PNK

639

Fuse Output - Ignition 1 - Type III Fuse

E9

--

--

Not Used

E10

PNK

439

Fuse Output - Ignition 1 - Type III Fuse (4.3L)

E10

PNK

439

Fuse Output - Ignition 1 - Type III Fuse (4.3L)

E11-12

--

--

Not Used

F1-F4

--

--

Not Used

F5

PPL

806

Fuse Output - Crank

F6

--

--

Not Used

F7

BLK

350

Ground

F8

--

--

Not Used

F9

PNK

539

Fuse Output - Ignition

F10

PNK

439

Fuse Output Ignition 1 - Type III Fuse

F11

PPL/WHT

1035

Starter Relay Feed - Coil

F12

--

--

Not Used

Underhood Bussed Electrical Center 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 Lamps - Type III Fuse (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 (Pickup)

B4-B6

--

--

Not Used

C1

BRN

2509

Fuse Output - Park Lamp - Left Rear (Pickup)

C2

--

--

Not Used

C5

DK GRN

619

Fuse Output - Turn/Stop Lamp - Right Rear (Pickup)

C6

--

--

Not Used

D1

BRN

2109

Fuse Output - Trailer Park Lamp - Type III Fuse

D2

BRN/WHT

2609

Fuse Output - Park Lamp - Right Rear (Pickup)

D3-5

--

--

Not Used

D6

YEL

618

Fuse Output - Turn/Stop Lamp Left Rear (Pickup)

E1-E3

--

--

Not Used

E4

LT BLU

1320

Fuse Output - Trailer HMSL (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 Bussed Electrical Center 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

A2

LT GRN

1193

Headlamp Output - High Beam - Right (Envoy)

A3-A4

--

--

Not Used

A4

LT BLU

1346

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

A5

PPL

34

Fog Lamp Feed

A5

PPL

34

Fog Lamp Feed

A5

LT GRN/WHT

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

YEL/BLK

712

Low Beam Headlamp Feed - Left (ZR2 w/ Service Harness)

DK GRN/ WHT

711

High Beam Headlamp Feed - Left (ZR2 w/ Service Harness)

B1

TAN/WHT

312

Low Beam Headlamp Feed - Right (Envoy)

B2

DK BLU

198

Fuse Output - Head Lamp - Right

DK BLU

198

Fuse Output - Head Lamp - Right

B2

YEL

712

Low Beam Headlamp Feed - Left (Envoy)

B3

YEL

525

Headlamp Dimmer Switch Output - Low Beam

B3

YEL

525

Headlamp Dimmer Switch Output - Low Beam

B3

YEL

525

Headlamp Dimmer Switch Output - Low Beam

B4

PPL

524

Headlamp Dimmer Switch Output - High Beam

B4

PPL

524

Headlamp Dimmer Switch Output - High Beam

B5

BRN

2309

Fuse Output - Park Lamp - Front

B5

BRN

2309

Fuse Output - Park Lamp - Front

B6

--

--

Not Used

C1-C2

--

--

Not Used

C5

BRN

2309

Fuse Output - Park Lamp Front

C5

BRN

2309

Fuse Output - Park Lamp Front

C6

--

--

Not Used

D1-D6

--

--

Not Used

E1-E4

--

--

Not Used

E5

LT BLU

2114

Fuse Output - Turn Lamp - Left Front - Type III Fuse

E5

LT BLU

2114

Fuse Output - Turn Lamp - Left Front - Type III Fuse

E6

--

--

Not Used

F1-F3

--

--

Not Used

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 Bussed Electrical Center 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 Bussed Electrical Center 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