GM Service Manual Online
For 1990-2009 cars only
Table 1: Fuse Block - Underhood Label Usage (Gas)
Table 2: Fuse Block - Underhood C1
Table 3: Fuse Block - Underhood C2
Table 4: Fuse Block - Underhood C3
Table 5: Fuse Block - Underhood C4
Table 6: Fuse Block - Underhood C5
Table 7: Fuse Block - Underhood C6
Table 8: Fuse Block - Underhood C7
Table 9: Fuse Block - Underhood C9
Table 10: Fuse Block - I/P C1
Table 11: Fuse Block - I/P C2
Table 12: Fuse Block - I/P C3
Table 13: Fuse Block - I/P C4
Table 14: Relay Block - I/P
Table 15: Relay Block - I/P C1
Table 16: Relay Block - I/P C3
Table 17: Relay Block - I/P C4
Table 18: Relay Block - I/P C7
Table 19: Relay Block - I/P C10
Table 20: Junction Block - I/P Wire Entry
Table 21: Junction Block - I/P C2
Table 22: Junction Block - I/P C4
Table 23: Junction Block -- I/P C5
Table 24: Junction Block - I/P C6
Table 25: Junction Block - I/P C7
Table 26: Junction Block - I/P C8
Table 27: Junction Block - Rear C1
Table 28: Junction Block - Rear C2
Table 29: Junction Block - Rear C3

Fuse Block - Underhood Label


Object Number: 997050  Size: LF

Fuse Block - Underhood Label Usage (Gas)

Fuse

Rating

Description

STUD 1 Fuse

40A

Trailer Wiring

MBEC Fuse

50A

SEAT CB, RT DOOR CB

BLOWER Fuse

40A

HVAC Blower Motor - High Speed

LBEC 2 Fuse

50A

LOCKS Fuse, DDM Fuse, PDM Fuse, AUX PWR 2 Fuse

STUD 2 Fuse

30A

Trailer Wiring, Off Road Lamps

ABS Fuse

60A

Electronic Brake Control Module (EBCM)

VSES/ECAS Fuse

60A

ECAS Relay

IGN A Fuse

40A

Ignition Switch RUN, START, RUN/START/ACCY, STARTER Relay

IGN B Fuse

40A

Ignition Switch RUN/ACC, RUN/START

LBEC 1 Fuse

50A

FLASH Fuse, TBC 2A Fuse, TBC 2B Fuse, TBC 2C Fuse, LT DOORS Fuse

TRL PARK Fuse

15A

Trailer Wiring

RR PARK Fuse

10A

Tail/Stop Lamp - Right, License Lamp - Right, Side Marker Lamp - Right Rear

LR PARK Fuse

10A

Tail/Stop Lamp - Left, License Lamp - Left, Side Marker Lamp - Left Rear

INTPARKRF Fuse

10A

SIR Defeat Switch, Clearance Lamps, Marker Lamps, Trailer Jumper

STOP LP Fuse

25A

Stop Lamp Switch

TBC BATT Fuse

10A

BCM

PARK LP Relay

--

TRLR PARK Fuse,LR PARK Fuse,RR PARK Fuse,F PARK Fuse, MARKER LP Fuse

STARTER Relay

--

Starter

SUNROOF Fuse

25A

Sunroof Relay

SEO B2 Fuse

30A

Electronic Brake Control Module (EBCM)

4WSFuse

15A

EVAP Canister Vent Solenoid

RR HVAC

30A

Not Used

AUX PWR 1 Fuse

20A

Accessory Outlets - Console

PCM I Fuse

15A

Evaporative Emission (EVAP) Canister Purge Solenoid, Powertrain Control Module (PCM), Mass Air Flow (MAF) Sensor/Intake Air Temperature (IAT) Sensor

ETC/ECM Fuse

15A

Throttle Actuator Control (TAC), Electronic Brake Control Module (EBCM)

INJ 1 Fuse

15A

Odd Ignition Coils, Odd Fuel Injectors

INJ 2 Fuse

15A

Even Ignition Coils, Even Fuel Injectors

IGN E Fuse

10A

A/C Compressor Relay, I/P Cluster, Turn/Hazard Switch

RTD Fuse

30A

Not Used

TRL B/U Fuse

10A

BCM Module, Trailer Connector

PCM B Fuse

20A

Fuel Pump Relay, PCM

F/PMP Relay

--

Fuel Pump

O2 Sensor A Fuse

15A

Heated Oxygen Sensors - Left/Right -- Before Catalytic Converter

B/U LP Fuse

20A

Park/Neutral Position Switch (PNP)

RR DEFOG Fuse

30A

DEFOG Relay

HDLP-HI Relay

--

High Beam - Left,High Beam - Right

O2 B Fuse

15A

Heated Oxygen Sensors - Left/Right -- After Catalytic Converter

SIR Fuse

15A

Inflatable Restraint I/P Module Disable Switch, Inflatable Restraint Sensing and Diagnostic Module (SDM)

FRT PARK Fuse

10A

LF/RF Park/Turn Lamps, LF/RF Side Marker Lamps

SEO IGN Fuse

10A

Rear Defogger Relay

TBC IGN 1 Fuse

10A

Body Control Module (BCM)

HI HDLP - LT

10A

Headlamp - High Beam - Left

LH HID

--

Not Used

DRL Relay

--

DRL - Left,DRL - Right

DRL Fuse

10A

Daytime Running Lamps (DRL) Relay

IPC/DIC Fuse

10A

Instrument Panel Cluster (IPC)

HVAC/ECAS Fuse

10A

HVAC Control Module, Air Suspension Module

CIG LTR Fuse

15A

Cigar Lighter, Data Link Connector (DLC)

HI HDLP RT Fuse

10A

Highbeam Headlamp - Right

HDLP-LOW Relay

--

Headlamp - Low Beam - Left,Headlamp - Low Beam - Right

A/C COMP Relay

--

A/C Compressor Clutch Assembly

A/C COMP Fuse

10A

A/C Compressor Clutch Relay

RR WPR

25A

Rear Window Wiper Motor

RADIO Fuse

15A

Radio, Rear Seat Audio (RSA)

SEO B1 Fuse

15A

Heated Seat Module - LR/RR, Garage Door Opener

LO HDLP - LT Fuse

10A

Headlamp - Low Beam - Left

BTSI Fuse

10A

Stoplamp Switch, Floor Shifter Shift Lock Control Solenoid

CRANK Fuse

10A

Ignition Switch, PCM Module

LO HDLP - RT Fuse

25A

Headlamp - Low Beam - Right

FOG LP Relay

--

Not Used

FOG LP Fuse

--

Not Used

Horn Relay

--

Horn - Low Note,Horn - High Note

W/S WASH Relay

--

Front Windshield Washer Motor and Module

W/S WASH Fuse

15A

W/S WASH Relay, Front Windshield Washer Motor and Module

INFO Fuse

15A

Vehicle Communication Interface Module (VCIM)

RADIO AMP Fuse

30A

Radio Amplifier

RH HID Fuse

--

Not Used

HORN Fuse

15A

Horn - High/Low Note

EAP Fuse

--

Not Used

TREC Fuse

30A

Transfer Case Control Module

SBA Fuse

--

Not Used

Fuse Block - Underhood Top View (Gas)


Object Number: 819626  Size: LF

Fuse Block - Underhood Bottom View


Object Number: 891850  Size: LF

Fuse Block - Underhood C1


Object Number: 365994  Size: CH

Connector Part Information

    • 12193905
    • 68-Way F Metri-pack 280 Series Flexlock (LT GRY)

Pin

Wire Color

Circuit No.

Function

A1-A2

--

--

Not Used

A3

YEL

5

Crank Voltage

A4

ORN

2040

Battery Positive Voltage

A5

ORN

4340

Battery Positive Voltage - HVAC Control Module

ORN

4340

Battery Positive Voltage - Air Suspension Control Module (w/ZM6)

A6

PNK

39

Ignition 1 Voltage

A7

YEL

1139

Ignition 1 Voltage - Inflatable Restraint I/P Module Disable Switch

YEL

1139

Ignition 1 Voltage - SDM Module

A8

LT GRN/BLK

584

Park Lock Solenoid Supply Voltage

LT GRN/BLK

584

A/T Shift Lock Control Switch Supply Voltage

A9

PNK

3

Ignition 1 Voltage

A10-A11

--

--

Not Used

A12

BRN

2409

Interior Park Lamps Supply Voltage - Inflatable Restraint I/P Module Disable Switch

BRN

2409

Interior Park Lamps Supply Voltage - Marker/Clearance Lamps

B1

--

--

Not Used

B2

ORN

2268

Windshield Washer Relay Control

B3-B7

--

--

Not Used

B8

ORN

1840

Battery Positive Voltage

B9

BLK/WHT

1969

Headlamp High Beam Relay Control

B10

--

--

Not Used

B11

ORN

3840

Battery Positive Voltage

B12

RED

142

Battery Positive Voltage

C1

ORN

1640

Battery Positive Voltage

C2

ORN

3240

Battery Positive Voltage - OnStar Module

ORN

3240

Battery Positive Voltage - OnStar Module

C3

BLK

28

Horn Relay Control - BCM

BLK

28

Horn Relay Control - Turn Signal/Multifunction Switch

C4-C8

--

--

Not Used

C9

PNK

1020

Off/Run/Crank Voltage - Park Switch

PNK

1020

Off/Run/Crank Voltage - Fuse Block I/P

C10

ORN

1040

Battery Positive Voltage

C11

--

--

Not Used

C12

PPL

420

TCC Brake Switch/Cruise Control Release Signal

D1-D2

--

--

Not Used

D3

PNK/WHT

1970

Headlamp Low Beam Relay Control

D4

ORN

340

Battery Positive Voltage - Radio

ORN

340

Battery Positive Voltage - RSA Controller

D5

ORN

640

Battery Positive Voltage - Cigar Lighter

ORN

640

Battery Positive Voltage - DLC Connector

D8-D9

--

--

Not Used

D10

PNK

639

Ignition 1 Voltage - Traction Control switch

PNK

639

Ignition 1 Voltage - Turn Hazard Switch

D11

--

--

Not Used

D12

ORN

1140

Battery Positive Voltage

E1-E2

--

--

Not Used

E3

LT GRN /BLK

592

DRL Relay Control

E4

ORN

4540

Battery Positive Voltage

E5-E6

--

--

Not Used

E7

LT BLU

1320

CHMSL Supply Voltage/Stop Lamp Supply Voltage

E8-E9

--

--

Not Used

E10

DK BLU

2115

Right Turn Signal Lamps Supply Voltage

E11

ORN

2340

Battery Positive Voltage

E12

--

--

Not Used

F1

--

--

Not Used

F2

ORN

3740

Battery Positive Voltage

F3

LT BLU

2114

Left Turn Signal Lamps Supply Voltage

F4

--

--

Not Used

F5

PNK

739

Ignition 1 Voltage

F6

PNK

639

Ignition 1 Voltage

F7

ORN

2840

Battery Positive Voltage

F8-F9

--

--

Not Used

F10

GRY

1524

Backup Lamp Supply Voltage

F11

WHT

1080

Park Lamp Relay Control

F12

ORN

1540

Battery Positive Voltage

Fuse Block - Underhood 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 -A2

--

--

Not Used

A3

DK GRN

59

A/C Compressor Clutch Supply Voltage

A4-A6

--

--

Not Used

A7

DK GRN/

WHT

465

Fuel Pump Relay Control - Primary

A8

ORN

440

Battery Positive Voltage

A9

PNK

1339

Ignition 1 Voltage - TAC Assembly

PNK

1339

Ignition 1 Voltage - EBCM Module

A10

LT BLU

1320

CHMSL Supply Voltage/Stop Lamp Supply Voltage

A11

GRY

1524

Trailer Backup Lamp Supply Voltage

A12

PNK

439

Ignition 1 Voltage - EVAP Purge Solenoid

PNK

439

Ignition 1 Voltage - PCM Module

B1-B6

--

--

Not Used

B7

BLK

550

Ground

B8

ORN

440

Battery Positive Voltage

B9

PNK

1039

Ignition 1 Voltage

B10

PNK

439

Ignition 1 Voltage

B11-B12

--

--

Not Used

C1-C2

--

--

Not Used

C3

DK GRN/

WHT

459

A/C Compressor Clutch Relay Control

C4-C9

--

--

Not Used

C10

PNK

1039

Ignition 1 Voltage - Fuel Injector 1

PNK

1039

Ignition 1 Voltage - Fuel Injector 3

C11

--

--

Not Used

C12

PPL

420

TCC Brake Switch/Cruise Control Release Signal

D1-D2

--

--

Not Used

D3

LT GRN

275

Park Neutral Position Switch Park Signal

D4-D5

--

--

Not Used

D8

PNK

539

Ignition 1 Voltage - HO2S Bank 1 Sensor 2

PNK

539

Ignition 1 Voltage - HO2S Bank 2 Sensor 2

D9

PNK

1239

Ignition 1 Voltage - Fuel Injector 2

PNK

1239

Ignition 1 Voltage - Fuel Injector 4

D10

PNK

1039

Ignition 1 Voltage - Fuel Injector 5

PNK

1039

Ignition 1 Voltage - Fuel Injector 7

D11

PPL

6

Starter Solenoid Crank Voltage

D12

YEL/BLK

625

Starter Enable Relay Control

E1-E5

--

--

Not Used

E6

PNK

1239

Ignition 1 Voltage - Fuel Injector 6

PNK

1239

Ignition 1 Voltage - Fuel Injector 8

E7

PNK

1539

Ignition 1 Voltage - HO2S Bank 1 Sensor 1

PNK

1539

Ignition 1 Voltage - HO2S Bank 2 Sensor 1

E8-E9

--

--

Not Used

E10

PNK

1239

Ignition 1 Voltage

E11-E12

--

--

Not Used

F1-F2

--

--

Not Used

F3

PPL

806

Crank Voltage

F4-F7

--

--

Not Used

F8

PNK

839

Ignition 1 Voltage

F9

PNK

639

Ignition 1 Voltage

F10

PNK

1020

Off/Run/Crank Voltage - PCM Module

PNK

1020

Off/Run/Crank Voltage - Automatic Transmission

F11

DK GRN

1433

Park/Neutral Start Switch Signal

F12

--

--

Not Used

Fuse Block - Underhood 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-A2

--

--

Not Used

A3

DK BLU

2115

Right Turn Signal Lamps Supply Voltage

A4

ORN

2640

Battery Positive Voltage

A5-A6

--

--

Not Used

B1-B2

--

--

Not Used

B3

LT BLU

2114

Left Turn Signal Lamps Supply Voltage

B4-B5

--

--

Not Used

B6

BRN

2109

Trailer Park Lamps Supply Voltage

C1

--

--

Not Used

C2

LT GRN

1624

Trailer Backup Lamps Supply Voltage

C3-C5

--

--

Not Used

C6

BRN/WHT

2609

Right Rear Tail Lamp Supply Voltage

BRN/WHT

2609

Right License/Side Marker Lamps Supply Voltage

D1-D6

--

--

Not Used

E1-E3

--

--

Not Used

E4

BLK

550

Ground

E5-E6

--

--

Not Used

F1

GRY

120

Fuel Pump Supply Voltage

F2-F3

--

--

Not Used

F4

LT BLU

1320

CHMSL Supply Voltage/Stop Lamp Supply Voltage - EBCM

LT BLU

1320

CHMSL Supply Voltage/Stop Lamp Supply Voltage - Tail/Stop Lamps

F5

--

--

Not Used

F6

BRN

2509

Left Rear Tail Lamp Supply Voltage

BRN

2509

Left Rear License/Side Marker Lamps Supply Voltage

Fuse Block - Underhood C4


Object Number: 362760  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A1-A2

--

--

Not Used

A3

DK BLU

2115

Right Turn Signal Lamps Supply Voltage

DK BLU

2115

Right Front Marker Lamp Supply Voltage

A4

BLK

550

Ground

A5

--

--

Not Used

A6

DK GRN

1329

Left Horn Fuse Supply Voltage

DK GRN

1329

Right Horn Fuse Supply Voltage

B1

--

--

Not Used

B2

DK BLU

545

DRL Supply Voltage - Left Lamp

DK BLU

545

DRL Supply Voltage - Right Lamp

B3-B6

--

--

Not Used

C1

BRN

2309

Right Front Park Lamps Supply Voltage

BRN

2309

Right Front Side Marker Lamp Supply Voltage

C2

--

--

Not Used

C5

BRN

2309

Left Front Park Lamp Supply Voltage

BRN

2309

Left Front Side Marker Lamp Supply Voltage

C6

DK GRN/

WHT

266

Rear Window Washer Pump Supply Voltage

D1-D6

--

--

Not Used

E1

LT BLU

2114

Left Turn Signal Lamps Supply Voltage

LT BLU

2114

Left Front Marker Lamp Supply Voltage

E2

DK GRN/

WHT

711

Left Headlamp High Beam Supply Voltage

E3

LT GRN/

BLK

311

Right Headlamp High Beam Supply Voltage

E4-E6

--

--

Not Used

F1-F3

--

--

Not Used

F4

YEL

712

Left Headlamp Low Beam Supply Voltage

F5

TAN/WHT

312

Right Headlamp Low Beam Supply Voltage

F6

--

--

Not Used

Fuse Block - Underhood C5


Object Number: 845605  Size: CH

Connector Part Information

    • 15393171
    • 2-Way F J-Type (MD GRY)

Pin

Wire Color

Circuit No.

Function

A

RED

842

Battery Positive Voltage

B

RED

542

Battery Positive Voltage

Fuse Block - Underhood C6


Object Number: 845608  Size: CH

Connector Part Information

    • 15393172
    • 2-Way F J-Type (LT GRN)

Pin

Wire Color

Circuit No.

Function

A

RED

642

Battery Positive Voltage

B

--

--

Not Used

Fuse Block - Underhood C7


Object Number: 845633  Size: CH

Connector Part Information

    • 15393168
    • 2-Way F J-Type (BLK)

Pin

Wire Color

Circuit No.

Function

A

RED

342

Battery Positive Voltage

B

RED

42

Battery Positive Voltage

Fuse Block - Underhood C9


Object Number: 845602  Size: CH

Connector Part Information

    • 15393170
    • 2-Way F J-Type (NAT)

Pin

Wire Color

Circuit No.

Function

A

RED

442

Battery Positive Voltage

B

RED

4042

Battery Positive Voltage (w/ZM6)

Fuse Block - I/P Label


Object Number: 997688  Size: MF

Fuse

Rating

Description

RR WPR Fuse

15A

Rear Window Wiper/Washer Switch

SEO ACCY Fuse

10A

Body Builder Provision

WS WPR Fuse

25A

Windshield Wiper Motor and Module

TBC ACCY Fuse

10A

Body Control Module (BCM)

IGN 3 Fuse

10A

Heated Seat Module - LR/RR

4WD Fuse

15A

Air Suspension Module, Ride Height Switch, Transfer Case Shift Control Switch

HTR/ A/C Fuse

30A

Not Used

LOCK Relay

--

Door Lock Actuator - Liftgate,Door Latch Assembly - LR,Door Latch Assembly - RR

HVAC 1 Fuse

10A

HVAC Control Module, HVAC Actuators, Inside Rearview Mirror

L DOOR

--

Fuse Block - I/P C4 ( Driver Door Harness)

CRUISE Fuse

10A

Cruise Control Switch

UNLOCK Relay

--

Door Lock Actuator - Liftgate,Door Latch Assembly - LR,Door Latch Assembly - RR

RR FOG LP Relay

--

Not Used

BRAKE Fuse

10A

Stop Lamp Switch

DRIVER UNLOCK Relay

--

Not Used

PDM Fuse

10A

Front Passenger Door Module (FPDM)

IGN O Fuse

10A

Automatic Transmission, Powertrain Control Module (PCM), Shift Lock Control Keylock Solenoid

TBC IGN O Fuse

10A

Body Control Module (BCM)

VEH CHMSL Fuse

10A

CHMSL Stop Lamp, Trailer Wiring Provisions

LT TRLR ST/TRN Fuse

10A

Trailer Wiring Provisions

LT TRN Fuse

10A

Instrument Panel Cluster (IPC), Side Marker Lamps - LF/LR, Turn Signal Lamp - LR, Turn/Park Lamp - LF

VEH STOP Fuse

15A

Turn Signal/Hazard Flasher Module, VEH CHMSL Fuse

BODY

--

Relay Block - Body C3 (Body Harness)

RT TRLR ST/TRN Fuse

10A

Trailer Wiring Provisions

RT TRN Fuse

10A

Instrument Panel Cluster (IPC), Side Marker Lamps - RF/RR, Turn Signal Lamp - RR, Turn/Park Lamp - RF

DDM Fuse

15A

Driver Door Module (DDM)

AUX PWR 2 Fuse

20A

I/P Accessory Power Outlets, Accessory Power Outlet - Rear

LOCKS Fuse

20A

Door Lock/Unlock Relay

ECC Fuse

10A

Not Used

TBC 2C Fuse

15A

Body Control Module (BCM)

FLASH Fuse

25A

Turn Signal/Hazard Flasher Module

LT DOORS CB

25A

Window Switch - LR, Driver Door Module (DDM)

TBC 2B Fuse

15A

Body Control Module (BCM)

TBC 2A Fuse

15A

Body Control Module (BCM)

Fuse Block - I/P Top View


Object Number: 1865853  Size: MF

Fuse Block - I/P Bottom View


Object Number: 880533  Size: LF

Fuse Block - I/P C1


Object Number: 362761  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A1

--

--

Not Used

A2

GRY/BLK

255

Power Door Lock Fuse Supply Voltage

A3

--

--

Not Used

A4

TAN/BLK

254

Power Door Unlock Fuse Supply Voltage

A5-A6

--

--

Not Used

A7

ORN

4240

Battery Positive Voltage

A8

YEL

1618

Trailer Left Rear Turn/Stop Lamp Supply Voltage

A9

DK GRN

1619

Trailer Right Rear Turn/Stop Lamp Supply Voltage

A10

ORN

3040

Battery Positive Voltage

A11

DK BLU

2115

Right Turn Signal Lamps Supply Voltage

A12

RED

42

Battery Positive Voltage

B1

YEL

143

Accessory Voltage

B2

YEL

43

Accessory Voltage

B3-B7

--

--

Not Used

B8

WHT

17

Stop Lamp Switch Signal

B9-B11

--

--

Not Used

B12

ORN

2140

Battery Positive Voltage

C1-C3

--

--

Not Used

C4

BRN

41

Ignition 3 Voltage

C5

--

--

Not Used

C8

LT BLU

1620

Trailer CHMSL Supply Voltage

C9-C12

--

--

Not Used

D1

YEL

243

Accessory Voltage

D2

--

--

Not Used

D3

BRN

341

Ignition 3 Voltage

D4

--

--

Not Used

D5

BRN

441

Ignition 3 Voltage

D8-D9

--

--

Not Used

D10

BLK/WHT

1851

Ground

D11-D12

--

--

Not Used

E1

BRN

241

Ignition 3 Voltage - Air Suspension Control Switch (w/ZM6)

BRN

241

Ignition 3 Voltage - Air Suspension Control Module (w/ZM6)

E2

BRN

241

Ignition 3 Voltage

E3

--

--

Not Used

E4

GRY

118

Left Front Door Speaker Output (-)

GRY

118

Left Front Tweeter Speaker Output (-)

E5

BRN

1046

DDM Class 2 Serial Data

E6

--

--

Not Used

E7

PNK

1691

Automatic Day/Night Mirror Low Reference

E8

WHT

530

Ignition 0 Voltage

E9

--

--

Not Used

E10

RED

842

Battery Positive Voltage

E11

ORN

4040

Battery Positive Voltage

E12

ORN

2240

Battery Positive Voltage

F1

YEL

343

Accessory Voltage

F2

--

--

Not Used

F3

LT BLU

2114

Left Turn Signal Lamps Supply Voltage

F4

GRY

1690

Automatic Day/Night Mirror Signal

F5

TAN

201

Left Front Door Speaker Output (+)

TAN

201

Left Front Tweeter Speaker Output (+)

F6

BLK

1050

Ground

F7

--

--

Not Used

F8

PNK

1020

Off/Run/Crank Voltage

F9

LT BLU

1320

CHMSL Supply Voltage/Stop Lamp Supply Voltage

F10-F12

--

--

Not Used

Fuse Block - I/P C2


Object Number: 366024  Size: CH

Connector Part Information

    • 12193930
    • 6-Way F Metri-pack 280 Series Flexlock (BLK)

Pin

Wire Color

Circuit No.

Function

A

ORN

300

Ignition 3 Voltage

B

LT GRN

1427

Right Turn Signal Switch Signal

C

DK GRN

1428

Left Turn Signal Switch Signal

D

WHT

111

Hazard Switch Signal

E

WHT

1390

Off/Run/Crank Voltage

F

BRN

4

Accessory Voltage

Fuse Block - I/P C3


Object Number: 524807  Size: CH

Connector Part Information

    • 12194035
    • 12-Way F Metri-pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A-B

--

--

Not Used

C

ORN

1240

Battery Positive Voltage

D

BLK

1050

Ground

E

--

--

Not Used

F

ORN

4140

Battery Positive Voltage

G

TAN

201

Left Front Speaker Output (+)

H

PNK

1691

Automatic Day/Night Mirror Low Reference

J

BRN

1046

DDM Class 2 Serial Data

K

GRY

1690

Automatic Day/Night Mirror Signal

L

GRY

118

Left Front Speaker Output (-)

M

--

--

Not Used

Fuse Block - I/P C4


Object Number: 655838  Size: CH

Connector Part Information

    • 15328768
    • 12-Way F Metri-pack 280 Series Flexlock (BRN)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

BRN

541

Ignition 3 Voltage - Left Rear Heated Seats (w/KA7)

BRN

541

Ignition 3 Voltage - Right Rear Heated Seats (w/KA7)

C-D

--

--

Not Used

E

TAN

294

Left Rear Door Lock Actuator Unlock Control

TAN

294

Right Rear Door Lock Actuator Unlock Control

F

TAN

294

Door Lock Actuator Unlock Control

G

--

--

Not Used

H

LT BLU

1620

Trailer CHMSL Supply Voltage

J

--

--

Not Used

K

GRY

295

Left Rear Door Lock Actuator Lock Control

GRY

295

Right Rear Door Lock Actuator Lock Control

L

GRY

295

Door Lock Actuator Lock Control

M

ORN

1240

Battery Positive Voltage

Relay Block - I/P


Object Number: 997462  Size: MF

Relay Block - I/P

Fuse

Rating

Description

SEO- 6 - WAY BLK

--

Not Used

TRAILER- 6 - WAY BRN

--

Trailer Provisions or Off Road Lamps

UPFIT- 4 - WAY CRM

--

Upfitter Provisions

SL RIDE- 6 - WAY GRY

--

Not Used

HDLNR 2- 6 - WAY CRM

--

Air Temperature Assembly - Inside, Blower Motor Control Processor, HVAC Actuators, Inside Rearview Mirror

BODY- 12 - WAY WHT

--

B Pillar Courtesy Lamps - LR/RR, Door Courtesy Lamps - LR/RR, Driver/Passenger Seat Module, Heated Seat Module - LR/RR, Rear Window Defogger Grid

DEFOG RELAY

--

Rear Window Defogger Grid

HDLNR 1- 12 - Way BRN

--

Courtesy/Reading Lamps - Left/Right Front, Courtesy Reading Lamps - Mid/Rear, Garage Door Opener, Inside Rearview Mirror, Vanity Mirror Lamps - Left/Right

SPARE RELAY

--

Not Used

CB SEAT

30A

Driver/Passenger Seat Modules

CB RT DOOR

25A

Front Passenger Door Module (FPDM), Window Switch - RR

SPARE- 4 - WAY GRY

--

Not Used

INFO-12 - WAY BLK

--

Not Used

Relay Block - I/P Top View


Object Number: 829700  Size: LF

Relay Block - I/P Bottom View


Object Number: 892417  Size: LF

Relay Block - I/P C1


Object Number: 365994  Size: CH

Connector Part Information

    • 12193905
    • 68-Way F Metri-pack 280 Series Flexlock (LT GRY)

Pin

Wire Color

Circuit No.

Function

A1

LT GRN

24

Backup Lamp Supply Voltage - BCM

LT GRN

24

Backup Lamp Supply Voltage - Junction Block - Rear

A2

--

--

Not Used

A3

BLK/WHT

1704

Low Reference

A4

DK GRN/

WHT

636

Ambient Air Temperature Sensor Signal

A5

BLK/WHT

1851

Ground - HVAC Control Module

BLK/WHT

1851

Ground - Data Link Communications

A6

WHT

193

Rear Defog Relay Control

A7

--

--

Not Used

A8

BRN/WHT

230

Instrument Panel Lamps Dimming Control

A9

BRN

341

Ignition 3 Voltage

A10

DK GRN/

WHT

817

Vehicle Speed Signal - Navigational Radio

A11

BRN/WHT

230

Instrument Panel Lamps Dimming Control - HVAC Control Module

BRN/WHT

230

Instrument Panel Lamps Dimming Control - Headlamp Switch

A12

GRY/BLK

690

Courtesy Lamp Supply Voltage

B1-B2

--

--

Not Used

B3

BLK/WHT

1851

Ground

B4

--

--

Not Used

B5

BLK/WHT

1851

Ground

B6

ORN

1840

Battery Positive Voltage

B7

RED

642

Battery Positive Voltage

B8

BRN/WHT

230

Instrument Panel Lamps Dimming Control

B9

DK GRN/

WHT

817

Vehicle Speed Signal

B10

GRY/BLK

690

Courtesy Lamp Supply Voltage - Footwell Courtesy Lamp - Left

GRY/BLK

690

Courtesy Lamp Supply Voltage - Footwell Courtesy Lamp - Right

B11-B12

--

--

Not Used

C1

--

--

Not Used

C2

BRN/WHT

230

Instrument Panel Lamps Dimming Control - Steering Wheel Controls

BRN/WHT

230

Instrument Panel Lamps Dimming Control - Traction Control Switch

C3

BRN/WHT

230

Instrument Panel Lamps Dimming Control

C4

ORN

1732

Inadvertent Load Control Courtesy Lamps Supply Voltage - I/P Compartment Lamp

ORN

1732

Inadvertent Load Control Courtesy Lamps Supply Voltage - Underhood Lamp

C5

BLK/WHT

1851

Ground - Rear Seat Audio

BLK/WHT

1851

Ground - Headlamp Switch

C8

BRN/WHT

230

Instrument Panel Lamps Dimming Control - Transfer Case Shift Control Switch

BRN/WHT

230

Instrument Panel Lamps Dimming Control - Ride Height Switch (w/ZM6)

C9

ORN

1340

Battery Positive Voltage

C10

BRN

2409

Interior Park Lamps Supply Voltage

C11-C12

--

--

Not Used

D1

WHT/BLK

5515

Inside Air Temperature Sensor Assembly Control

D2

BRN/WHT

230

Instrument Panel Lamps Dimming Control

D3

BRN/WHT

230

Instrument Panel Lamps Dimming Control

D4

ORN

1732

Inadvertent Load Control Courtesy/Vanity/Reading Lamps Supply Voltage

D5

BLK/WHT

1851

Ground - I/PC

BLK/WHT

1851

Ground - OnStar Module

D8

BLK/WHT

1851

Ground

D9

BLK

1050

Ground

D10

BRN

2409

Interior Park Lamps Supply Voltage

D11-D12

--

--

Not Used

E1

BRN

718

Low Reference

E2

PNK

1691

Automatic Day/Night Mirror Low Reference

E3

--

--

Not Used

E4

PPL/WHT

1382

LED Dimming Signal - Transfer Case Shift Control Switch

PPL/WHT

1382

LED Dimming Signal - Ride Height Switch (w/ZM6)

E5

BLK/WHT

1851

Ground - Radio

BLK/WHT

1851

Ground - Flasher Module

E6

DK GRN/

WHT

817

Vehicle Speed Signal

E7

PPL/WHT

1382

LED Dimming Signal

E8

BLK/WHT

1851

Ground - BCM - C2

BLK/WHT

1851

Ground - BCM - C3

E9

--

--

Not Used

E10

RED

242

Battery Positive Voltage

E11-E12

--

--

Not Used

F1

DK GRN

734

Inside Air Temperature Sensor Signal

F2

GRY

1690

Automatic Day/Night Mirror Signal

F3

PNK

739

Ignition 1 Voltage

F4

--

--

Not Used

F5

BLK/WHT

1851

Ground

F6

PPL/WHT

1382

LED Dimming Signal - Headlamp Switch

PPL/WHT

1382

LED Dimming Signal - BCM

F7

ORN

4540

Battery Positive Voltage

F8

BLK/WHT

1851

Ground

F9

LT BLU

1620

Trailer CHMSL Supply Voltage

F10

DK BLU

47

Trailer Auxiliary Supply Voltage

F11

YEL

243

Accessory Voltage

F12

--

--

Not Used

Relay Block - I/P C3


Object Number: 655838  Size: CH

Connector Part Information

    • 15328768
    • 12-Way F Metri-pack 280 Series Flexlock (BRN)

Pin

Wire Color

Circuit No.

Function

A

LT GRN

24

Backup Lamp Supply Voltage

B

ORN

4540

Battery Positive Voltage

C

BLK

1050

Ground

D

--

--

Not Used

E

BRN

341

Ignition 3 Voltage

F

--

--

Not Used

G

BLK/WHT

1704

Low Reference

H-J

--

--

Not Used

K

DK GRN/WHT

636

Ambient Air Temperature Sensor Signal

L

GRY/BLK

690

Courtesy Lamp Supply Voltage

M

ORN

1732

Inadvertent Load Control Courtesy/Vanity/Reading Lamps Supply Voltage

Relay Block - I/P C4


Object Number: 886342  Size: CH

Connector Part Information

    • 12193922
    • 6-Way F Metri-pack 280 Series Flexlock (CRM)

Pin

Wire Color

Circuit No.

Function

A

BRN/WHT

230

Instrument Panel Lamps Dimming Control - Sunroof Switch (w/CF5)

BRN/WHT

230

Instrument Panel Lamps Dimming Control - Garage Door Opener

B

PNK

1691

Automatic Day/Night Mirror Low Reference

C

GRY

1690

Automatic Day/Night Mirror Signal

D

DK GRN

734

Inside Air Temperature Sensor Signal

E

BRN

718

Low Reference

F

WHT/BLK

5515

Inside Air Temperature Sensor Assembly Control

Relay Block - I/P C7


Object Number: 886343  Size: CH

Connector Part Information

    • 12193924
    • 6-Way F Metri-pack 280 Series Flexlock (BRN)

Pin

Wire Color

Circuit No.

Function

A

BRN

2409

Interior Park Lamps Supply Voltage

B

RED

242

Battery Positive Voltage

C

DK BLU

47

Trailer Auxiliary Supply Voltage

D

LT BLU

1620

Trailer CHMSL Supply Voltage

E

--

--

Not Used

F

BLK

1050

Ground

Relay Block - I/P C10


Object Number: 831381  Size: CH

Connector Part Information

    • 15357030
    • 12-Way F Metri-pack 280 Series Flex-Lock (NAT)

Pin

Wire Color

Circuit No.

Function

A

ORN

4540

Battery Positive Voltage - LR Heated Seat Module (w/KA7)

ORN

4540

Battery Positive Voltage - RR Heated Seat Module (w/KA7)

B

GRY/BLK

690

Courtesy Lamp Supply Voltage - Left B-Pillar

GRY/BLK

690

Courtesy Lamp Supply Voltage - Right B-Pillar

C

GRY/BLK

690

Courtesy Lamp Supply Voltage - LR Door

GRY/BLK

690

Courtesy Lamp Supply Voltage - RR Door

D

--

--

Not Used

E

ORN

1440

Battery Positive Voltage

F

BRN/WHT

230

Instrument Panel Lamps Dimming Control - LR Window Switch

BRN/WHT

230

Instrument Panel Lamps Dimming Control - RR Window Switch

G

--

--

Not Used

H

ORN

1440

Battery Positive Voltage

J

--

--

Not Used

K

ORN

1340

Battery Positive Voltage

L

PPL

293

Rear Defog Element Supply Voltage

M

--

--

Not Used

Junction Block - I/P Top View


Object Number: 850114  Size: MF

Junction Block - I/P Bottom View


Object Number: 1156070  Size: MF

Junction Block - I/P Wire Entry

Connector Part Information

    • 15401495
    • 48-Way M Metri-pack 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

2A

DK GRN

117

Right Front Speaker Output (-)

DK GRN

117

Right Front Speaker Output (-)

2B

LT GRN

200

Right Front Speaker Output (+)

LT GRN

200

Right Front Speaker Output (+)

2C-2E

--

--

Not Used

2F

BLK

1050

Ground

3A-3F

--

--

Not Used

4A

BLK

1050

Ground

4B

GRY/BLK

2337

Lower Right Air Temperature Sensor Signal

4C

BRN

718

Low Reference

4D

RED

542

Battery Positive Voltage

4E

PPL

1838

Recirculation Door Position Signal

4F

PPL/WHT

760

Blower Motor Speed Control

4G-4H

--

--

Not Used

4J

LT BLU/BLK

1688

5-Volt Reference

4K

--

--

Not Used

4L

YEL

1791

Low Reference

4M

--

--

Not Used

5A

--

--

Not Used

5B

LT GRN

2275

Mode Door Position Signal

5C

TAN

2273

Mode Door Control

5D

DK BLU

1199

Left Air Temperature Door Control

5E

LT BLU

733

Left Air Temperature Door Position Signal

5F

--

--

Not Used

6A

--

--

Not Used

6B

BRN

2409

Interior Park Lamps Supply Voltage

6C

BLK

1050

Ground

6D-6E

--

--

Not Used

6F

GRY

161

Antenna Motor Up

7A

--

--

Not Used

7B

TAN

1047

PDM Class 2 Serial Data

7C

ORN

4240

Battery Positive Voltage

7D

--

--

Not Used

7E

ORN

1340

Battery Positive Voltage

7F

--

--

Not Used

8A

WHT/BLK

2339

Lower Left Air Temperature Sensor Signal

8B

--

--

Not Used

8C

BRN

341

Ignition 3 Voltage

8D

DK BLU

1646

Right Air Temperature Door Position Signal

8E

WHT/BLK

1236

Right Air Temperature Door Control

8F

DK GRN

1614

Recirculation Door Control

Junction Block - I/P C2


Object Number: 366024  Size: CH

Connector Part Information

    • 12193930
    • 6-Way F Metri-pack 280 Series Flexlock (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

117

Right Front Speaker Output (-)

B

LT GRN

200

Right Front Speaker Output (+)

C-E

--

--

Not Used

F

BLK

1050

Ground

Junction Block - I/P C4


Object Number: 655757  Size: CH

Connector Part Information

    • 12194037
    • 12-Way F Metri-pack 280 Series Flexlock (BRN)

Pin

Wire Color

Circuit No.

Function

A

BLK

1050

Ground

B

GRY/BLK

2337

Lower Right Air Temperature Sensor Signal

C

BRN

718

Low Reference - Air Temperature Sensor - Lower Left

BRN

718

Low Reference - Air Temperature Sensor - Lower Right

D

RED

542

Battery Positive Voltage

E

PPL

1838

Recirculation Door Position Signal

F

PPL/WHT

760

Blower Motor Speed Control

G

--

--

Not Used

H

LT BLU/BLK

1688

5-Volt Reference - Air Temperature Actuator - Left

LT BLU/BLK

1688

5-Volt Reference - Air Temperature Actuator - Right

J

LT BLU/BLK

1688

5-Volt Reference - Mode Actuator

LT BLU/BLK

1688

5-Volt Reference - Recirculation Actuator

K

--

--

Not Used

L

YEL

1791

Low Reference - Recirculation Actuator

YEL

1791

Low Reference - Mode Actuator

M

YEL

1791

Low Reference - Air Temperature Actuator - Left

YEL

1791

Low Reference - Air Temperature Actuator - Right

Junction Block -- I/P C5


Object Number: 366012  Size: CH

Connector Part Information

    • 12193924
    • 6-Way F Metri-pack 280 Series Flexlock (BRN)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

LT GRN

2275

Mode Door Position Signal

C

TAN

2273

Mode Door Control

D

DK BLU

1199

Left Air Temperature Door Control

E

LT BLU

733

Left Air Temperature Door Position Signal

F

--

--

Not Used

Junction Block - I/P C6


Object Number: 655740  Size: CH

Connector Part Information

    • 12193929
    • 6-Way F Metri-pack 280 Series Flexlock (LT GRN)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

BRN

2409

Interior Park Lamps Supply Voltage

C

BLK

1050

Ground

D-E

--

--

Not Used

F

GRY

161

Audio Preamplifier Supply Voltage

Junction Block - I/P C7


Object Number: 366003  Size: CH

Connector Part Information

    • 12193922
    • 6-Way F Metri-pack 280 Series Flexlock (CRM)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

TAN

1047

PDM Class 2 Serial Data

C

ORN

4240

Battery Positive Voltage

D

--

--

Not Used

E

ORN

1340

Battery Positive Voltage

F

--

--

Not Used

Junction Block - I/P C8


Object Number: 366015  Size: CH

Connector Part Information

    • 12193928
    • 6-Way F Metri-pack 280 Series Flexlock (GRY)

Pin

Wire Color

Circuit No.

Function

A

WHT/BLK

2339

Lower Left Air Temperature Sensor Signal

B

BRN

341

Ignition 3 Voltage - Mode Actuator

BRN

341

Ignition 3 Voltage - Recirculation Actuator

C

BRN

341

Ignition 3 Voltage - Air Temperature Actuator - Left

BRN

341

Ignition 3 Voltage - Air Temperature Actuator - Right

D

DK BLU

1646

Right Air Temperature Door Position Signal

E

WHT/BLK

1236

Right Air Temperature Door Control

F

DK GRN

1614

Recirculation Door Control

Junction Block - Rear


Object Number: 891656  Size: MF

Junction Block - Rear C1


Object Number: 524408  Size: CH

Connector Part Information

    • 15317304
    • 8-Way F GT 280 Sealed (BLU)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

2114

Left Turn Signal Lamps Supply Voltage

B

LT BLU

1320

Stop Lamp Supply Voltage

C

LT GRN

24

Backup Lamp Supply Voltage

D

BRN/WHT

2609

Right Rear Park Lamps Supply Voltage

E

BLK

1750

Ground

F

--

--

Not Used

G

BRN

2509

Left Rear Park Lamps Supply Voltage

H

DK BLU

2115

Right Turn Signal Lamps Supply Voltage

Junction Block - Rear C2


Object Number: 374045  Size: CH

Connector Part Information

    • 15317305
    • 8-Way F GT 280 Series (MD GRY)

Pin

Wire Color

Circuit No.

Function

A

GRN/BLK

1750

Ground

B

GRY/BLK

1750

Ground

C

BLK

1750

Ground

D

RED

1320

CHMSL Supply Voltage/Stop Lamp Supply Voltage

E

BLU

2509

Left Rear Tail Lamps Supply Voltage

F

GRY

24

Backup Lamp Supply Voltage

G

--

--

Not Used

H

ORN

2114

Left Turn Signal Lamps Supply Voltage

Junction Block - Rear C3


Object Number: 374047  Size: CH

Connector Part Information

    • 15317306
    • 8-Way F GT 280 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

RED

1320

Right Tail Lamp Supply Voltage

B

BLU

2609

Right Rear Park Lamps Supply Voltage

C

GRN/BLK

1750

Ground

D

BLK

1750

Ground

E

GRY

24

Backup Lamp Supply Voltage

F

ORN

2115

Right Turn Signal Lamps Supply Voltage

G

--

--

Not Used

H

GRY/BLK

1750

Ground