GM Service Manual Online
For 1990-2009 cars only
Table 1: Fuse Block - Underhood Label Usage
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 - Underhood - Cooling Fan (10 Series)
Table 11: Fuse Block - Underhood - Cooling Fan (10 Series) Wire Entry
Table 12: Fuse Block - Underhood - Cooling Fan (10 Series) Connector
Table 13: Fuse Block - Underhood - Secondary Label Usage
Table 14: Fuse Block - Underhood - Secondary Wire Entry (HP2)
Table 15: Fuse Block - I/P Label Usage
Table 16: Fuse Block - I/P C1
Table 17: Fuse Block - I/P C2
Table 18: Fuse Block - I/P C3
Table 19: Fuse Block - I/P C4 (Crew Cab)
Table 20: Relay Block I/P Label Usage
Table 21: Relay Block - I/P C1
Table 22: Relay Block - I/P C3
Table 23: Relay Block - I/P C4
Table 24: Relay Block - I/P C5
Table 25: Relay Block - I/P C7 (Z82)
Table 26: Relay Block - I/P C8 (5G4/5X7/5Y0/TRW)
Table 27: Relay Block - I/P C9
Table 28: Relay Block - I/P C10
Table 29: Junction Block - I/P Wire Entry
Table 30: Junction Block - I/P - C2
Table 31: Junction Block - I/P - C4
Table 32: Junction Block - I/P - C5
Table 33: Junction Block - I/P - C6
Table 34: Junction Block - I/P - C7
Table 35: Junction Block - I/P - C8
Table 36: Junction Block - Rear Lamps - C1
Table 37: Junction Block - Rear Lamps - C2
Table 38: Junction Block - Rear Lamps - C3
Table 39: Junction Block - Rear Lamps - C4

Fuse Block - Underhood Label


Object Number: 1499441  Size: MF

Fuse Block - Underhood Label Usage

Device

Rating

Description

STUD 1 Fuse

--

Trailer Wiring, Auxiliary Battery Relay and Battery Right (TP2), AUX HTR PMP Fuse (HP2), ESCM Fuse (HP2), HCM-B Fuse (HP2) and TRANS PUMP Fuse (HP2)

MBEC 1 Fuse

50A

SEAT CB, RT DOOR CB

BLWR Fuse

40A

Blower Motor

LBEC 2 Fuse

50A

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

STUD 2 Fuse

30A

Trailer Wiring, Emergency Vehicle Roof Lamp Relay

ABS Fuse

60A

Electronic Brake Control Module (EBCM)

VSES/ECAS Fuse

60A

Not Used

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

Exterior Lamps-Right Rear, Clearance Lamps-Right

LR PARK Fuse

10A

Exterior Lamps-Left Rear, Clearance Lamps-Left

PARK LP Relay

--

TRL PARK Fuse, LR PARK Fuse, RR PARK Fuse, FRT PARK Fuse, INT PARK Fuse DRL Relay (Export)

STRTR Relay

--

Starter

INTPARK Fuse

10A

Power Take-Off (PTO) Switch, Inflatable Restraint I/P Module Disable Switch

STOP LP Fuse

25A

Stop Lamp Switch

TBC BATT Fuse

10A

Body Control Module (BCM), PASS-Key Module

S/ROOF Fuse

25A

Sunroof Module Control

SEO B2 Fuse

30A

Roof Beacon Relay

4WS Fuse

15A

Rear Wheel Steering Control Module, Evaporative Emission (EVAP) Canister Vent Solenoid

RR HVAC

30A

Not Used

AUX PWR Fuse

20A

Accessory Power Outlets, Auxiliary Power Outlets

PCM 1 Fuse

15A

Powertrain Control Module (PCM), Mass Air Flow (MAF) Sensor, Evaporative Emission (EVAP) Canister Purge Solenoid, Fuel Composition Sensor, Secondary Fuel Pump Relay

ETC/ECM Fuse

15A

Throttle Actuator Control (TAC)

INJ 1 Fuse (Gas)/ECMRPCV Fuse (Diesel) #2

15A

Fuel Injectors-Odd-Numbered, Ignition Coils-Odd-Numbered (Gas)

15A

Engine Control Module (ECM) (Diesel)

INJ 2 Fuse (Gas)/EDU Fuse (Diesel) #1

15A

Fuel Injectors-Even-Numbered, Ignition Coils-Even-Numbered (Gas)

25A

Fuel Injector Control Module (FICM) (Diesel)

IGN E Fuse

10A

A/C COMP Relay, Park/Neutral Position (PNP) Switch, Turn Signal/Multifunction Switch, Headlamp Leveling Components, Clutch Start Switch

IGN 1 Relay (Gas)/EDU Relay (Diesel) #5

--

SBA Fuse, ETC/ECM Fuse, PCM 1 Fuse, INJ 1 Fuse, INJ 2 Fuse

--

ECMRPCV Fuse, EDU Fuse (Diesel)

RTD Fuse

30A

Not Used

TRL B/U Fuse

10A

Body Control Module (BCM), Trailer Wiring, Back-Up Alarm

PCM B Fuse

20A

Powertrain Control Module, F/PMP Relay

F/PMP Relay

--

Fuel Pump

O2 A Fuse (Gas)/FUEL HT Fuse (Diesel) #3

15A

Heated Oxygen Sensors-Upstream (Gas)

15A

Fuel Heater, Glow Plug Controller, Intake Air (IA) Heater Relay, EGR System Components (Diesel)

B/U LP Fuse

20A

Park/Neutral Position (PNP) Switch

RR DEFOG Fuse

30A

DEFOG Relay

HDLP-HI Relay

--

HI HDLP-LT Fuse, HI HDLP-RT Fuse

O2 B Fuse (Gas)/EMCI Fuse (Diesel) #4

15A

Heated Oxygen Sensors-Downstream (Gas)

15A

IAT/MAF Sensor, Engine Control Module (ECM) (Diesel)

AIRBAG Fuse

15A

Inflatable Restraint Sensing and Diagnostic Module (SDM), Memory Seat Module-Passenger, Inside Rearview Mirror

FRT PARK Fuse

10A

Park/Turn Signal Lamps-Front, Marker Lamps-Front

DRL Relay

--

DRL Lamp-LT, DRL Lamp-RT (Domestic)/DRL Fuse, FRT PARK Fuse (Export)

SEO IGN Fuse

10A

DEFOG Relay, Instrument Panel Cluster (IPC)

TBC IGN 1 Fuse

10A

Body Control Module (BCM)

HI HDLP-LT Fuse

10A

Headlamp-High Beam-Left

LH HID Fuse

20A

High Intensity Discharge Lamps

DRL Fuse

10A

DRL Relay (Domestic)/Daytime Running Lamps (Export)

RVC Fuse

10A

Generator Battery Control Module

IPC/DIC Fuse

10A

Instrument Panel Cluster (IPC)

HVAC/ECAS Fuse

10A

HVAC Control Module

CIG LTR Fuse

15A

Cigar Lighter, Data Link Connector (DLC)

HI HDLP RT Fuse

10A

Highbeam Headlamp-Right

HDLP-LOW Relay

--

LO HDLP-LT Fuse, LO HDLP-RT Fuse

A/C COMP Relay

--

A/C Compressor Clutch

A/C COMP Fuse

10A

A/C Compressor Clutch Relay

RR WPR

25A

Not Used

RADIO Fuse

15A

Radio, Rear Seat Audio (RSA)

SEO B1 Fuse

15A

Instrument Panel Cluster (IPC), Rear Fog Lamp Relay, Overhead Console, Roof Beacon Switch

LO HDLP-LT Fuse

10A

Headlamp-Low Beam-Left

BTSI Fuse

10A

Stop Lamp Switch

CRNK Fuse

10A

Powertrain Control Module (PCM)-Gas, Engine Control Module (ECM)-Diesel

LO HDLP-RT Fuse

25A

Headlamp-Low Beam-Right

FOG LP Relay

--

Fog Lamp-RF, Fog Lamp-LF

FOG LP Fuse

15A

FOG LP Relay

HORN Relay

--

HORN Fuse

W/S WASH Relay

--

Windshield Washer Fluid Pump

W/S WASH Fuse

15A

W/S WASH Relay

INFO Fuse

15A

Vehicle Communication Interface Module (VCIM), Rear Seat Entertainment (RSE) Assembly, Remote Playback Device-CD Player

RADIO AMP Fuse

30A

Audio Amplifier

RH HID Fuse

20A

Not Used

HORN Fuse

15A

Horn-Left, Horn-Right

EAP Fuse

15A

Not Used

TREC Fuse

30A

Transfer Case Encoder Motor, Transfer Case Shift Control Module

SBA Fuse

15A

Supplemental Brake Assist (SBA)

Fuse Block - Underhood Top View


Object Number: 1542081  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 (GY)

Pin

Wire Color

Circuit No.

Function

A1-A2

--

--

Not Used

A3

YE

5

Crank Voltage

A4

--

--

Not Used

A5

OG

4340

Battery Positive Voltage

A6

PK

39

Ignition 1 Voltage

A7

YE

1139

Ignition 1 Voltage

YE

1139

Ignition 1 Voltage (C99)

A8

L-GN/BK

584

A/T Shift Lock Control Switch Supply Voltage (A/T)

A9

PK

3

Ignition 1 Voltage

A10

--

--

Not Used

A11

D-GN

1433

Park/Neutral Start Switch Signal (MG5/ML6/MW3/M74)

A12

BN

2409

Interior Park Lamps Supply Voltage

BN

2409

Interior Park Lamps Supply Voltage - Domestic Only

B1

OG

1640

Battery Positive Voltage (NP8)

B2

OG

2268

Windshield Washer Relay Control

B3

D-GN/WH

1317

Fog Lamp Relay Control (T96)

D-GN/WH

1317

Fog Lamp Relay Control (T96)

B4-B7

--

--

Not Used

B8

OG

1840

Battery Positive Voltage

B9

BK/WH

1969

Headlamp Relay Control/Headlamp High Beam Relay Control

B10

--

--

Not Used

B11

OG

3840

Battery Positive Voltage (CF5)

B12

RD

142

Battery Positive Voltage

C1

OG

1640

Battery Positive Voltage (NP8)

C2

OG

3240

Battery Positive Voltage

C3

BK

28

Horn Relay Control

BK

28

Horn Relay Control

C4-C5

--

--

Not Used

C6-C7

--

--

Not Available

C8

--

--

Not Used

C9

PK

1020

Ignition 0 Voltage

C10

OG

1040

Battery Positive Voltage

C11

--

--

Not Used

C12

PU

420

TCC Brake Switch/Cruise Control Release Signal

D1-D2

--

--

Not Used

D3

PK/WH

1970

Headlamp Low Beam Relay Control

D4

OG

340

Battery Positive Voltage

OG

340

Battery Positive Voltage (UQ3/UQ5/UQ7)

D5

OG

640

Battery Positive Voltage

OG

640

Battery Positive Voltage

D6-D7

--

--

Not Available

D8-D9

--

--

Not Used

D10

PK

639

Ignition 1 Voltage

D11

--

--

Not Used

D12

OG

1140

Battery Positive Voltage - BCM

E1-E2

--

--

Not Used

E3

L-GN /BK

592

DRL Relay Control

E4

OG

4540

Battery Positive Voltage (8S8)

OG

4540

Battery Positive Voltage

E5

--

--

Not Used

E6

BN/WH

1571

Traction Control Switch Signal (NW7)

E7

L-BU

1320

CHMSL Supply Voltage/Stop Lamp Supply Voltage

E8

--

--

Not Used

E9

D-GN

591

Ignition 1 Voltage (HP2)

E10

D-BU

2115

Right Turn Signal Lamps Supply Voltage

E11

OG

2340

Battery Positive Voltage

E12

--

--

Not Used

F1

PK

139

Ignition 1 Voltage (w/JC4 or w/o NQZ)

F2

OG

3740

Battery Positive Voltage

F3

L-BU

2114

Left Turn Signal Lamps Supply Voltage

F4

--

--

Not Used

F5

PK

739

Ignition 1 Voltage (8S8)

PK

739

Ignition 1 Voltage

F6

PK

639

Ignition 1 Voltage (except 8S8)

PK

639

Ignition 1 Voltage (M/T)

F7

OG

2840

Battery Positive Voltage (w/o 8S8)

F8-F9

--

--

Not Used

F10

GY

1524

Backup Lamp Supply Voltage

F11

WH

1080

Park Lamp Relay Control

F12

OG

1540

Battery Positive Voltage

Fuse Block - Underhood C2


Object Number: 362761  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A1-A2

--

--

Not Used

A3

D-GN

59

A/C Compressor Clutch Supply Voltage (CJ2/CJ3)

A4-A6

--

--

Not Used

A7

D-GN/WH

465

Fuel Pump Relay Control - Primary

A8

OG

440

Battery Positive Voltage (M74)

A9

PK

1339

Ignition 1 Voltage

A10

L-BU

1320

CHMSL Supply Voltage/Stop Lamp Supply Voltage (KUP)

A11

GY

1524

Trailer Backup Lamp Supply Voltage (Diesel)

GY

1524

Trailer Backup Lamp Supply Voltage

A12

PK

439

Ignition 1 Voltage (L59)

PK

439

Ignition 1 Voltage (EVA)

B1

--

--

Not Used

B2

OG

3440

Battery Positive Voltage (8.1L/PTO)

B3

BK/WH

1695

Axle Switch Signal

BK/WH

1695

Axle Switch Signal

B4-B6

--

--

Not Used

B7

BK

550

Ground

B8

OG

440

Battery Positive Voltage

OG

440

Battery Positive Voltage

B9

PK

1039

Ignition 1 Voltage

PK

1039

Ignition 1 Voltage (Diesel)

B10

PK

439

Ignition 1 Voltage - MAF/IAT Sensor (Gas)

PK

439

Ignition 1 Voltage - PCM (Gas)

B11-B12

--

--

Not Used

C1-C2

--

--

Not Used

C3

D-GN/WH

459

A/C Compressor Clutch Relay Control (CJ2/CJ3)

C4-C5

--

--

Not Used

C6-C7

--

--

Not Available

C8-C9

--

--

Not Used

C10

PK

1039

Ignition 1 Voltage (Except 4.3L)(Gas)

PK

1039

Ignition 1 Voltage (Gas)

C11

--

--

Not Used

C12

PU

420

TCC Brake Switch/Cruise Control Release Signal

PU

420

TCC Brake Switch/Cruise Control Release Signal (M74)

D1-D2

--

--

Not Used

D3

L-GN

275

Park Neutral Position Switch Park Signal

D4

--

--

Not Used

D5

RD/WH

4740

Battery Positive Voltage (10 Series Except HP2)

RD/WH

4740

Battery Positive Voltage (10 Series Except HP2)

D6-D7

--

--

Not Available

D8

PK

539

Ignition 1 Voltage - HO2S Bank 1 Sensor 1(Gas except HP2)

PK

539

Ignition 1 Voltage - HO2S Bank 2 Sensor 1(Gas except HP2)

PK

239

Ignition 1 Voltage (Diesel)

PK

239

Ignition 1 Voltage (Diesel)

D9

PK

1239

Ignition 1 Voltage (Gas)

PK

339

Ignition 1 Voltage (Diesel)

PK

339

Ignition 1 Voltage (Diesel)

D10

PK

1039

Ignition 1 Voltage (Gas)

PK

1039

Ignition 1 Voltage (Gas)

D11

PU

6

Starter Solenoid Crank Voltage (w/o HP2)

D12

YE/BK

625

Starter Enable Relay Control (Except HP2)

E1-E5

--

--

Not Used

E6

PK

1239

Ignition 1 Voltage - Fuel Injector 2 (Gas)

PK

1239

Ignition 1 Voltage - Fuel Injector 4 (Gas)

GY/BK

2219

FICM Relay Control (Diesel)

E7

PK

1539

Ignition 1 Voltage - HO2S - Bank 1 Sensor 2 (Gas except HP2)

PK

1539

Ignition 1 Voltage - HO2S - Bank 2 Sensor 2 (Gas except HP2)

PK

439

Ignition 1 Voltage - MAF/IAT Sensor (Diesel)

PK

439

Ignition 1 Voltage - ECM (Diesel)

E8-E9

--

--

Not Used

E10

PK

1239

Ignition 1 Voltage (Gas) (Except 4.3L)

PK

1239

Ignition 1 Voltage (Gas)

E11

PK

1020

Ignition 0 Voltage (A/T Except M74)

PK

1020

Ignition 0 Voltage

E12

--

--

Not Used

F1-F2

--

--

Not Used

F3

PU

806

Crank Voltage

F4-F7

--

--

Not Used

F8

PK

839

Ignition 1 Voltage

F9

PK

639

Ignition 1 Voltage

F10

PK

1020

Ignition 0 Voltage

PK

1020

Ignition 0 Voltage (M74 or HP2)

F11

D-GN

1433

Park/Neutral Start Switch Signal (Except HP2)

F12

--

--

Not Used

Fuse Block - Underhood C3


Object Number: 362759  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A1-A2

--

--

Not Used

A3

D-BU

2115

Right Turn Signal Lamps Supply Voltage

A4

OG

2640

Battery Positive Voltage - Vent Solenoid (Gas)

OG

2640

Battery Positive Voltage (NYS)

A5

PU

420

TCC Brake Switch/Cruise Control Release Signal

A6

--

--

Not Used

B1

BK/WH

1695

Axle Switch Signal (NP2)

B2

--

--

Not Used

B3

L-BU

2114

Left Turn Signal Lamps Supply Voltage

B4-B5

--

--

Not Used

B6

BN

2109

Trailer Park Lamps Supply Voltage

C1

--

--

Not Used

C2

L-GN

1624

Trailer Backup Lamps Supply Voltage (8S3)

L-GN

1624

Trailer Backup Lamps Supply Voltage

C3-C4

--

--

Not Available

C5

--

--

Not Used

C6

BN/WH

2609

Right Rear Park Lamps Supply Voltage

D1-D2

--

--

Not Used

D3-D4

--

--

Not Available

D5-D6

--

--

Not Used

E1-E3

--

--

Not Used

E4

BK

550

Ground

E5-E6

--

--

Not Used

F1

GY

120

Fuel Pump Supply Voltage

GY

120

Fuel Pump Supply Voltage (Except NQZ)

F2-F3

--

--

Not Used

F4

L-BU

1320

CHMSL Supply Voltage/Stop Lamp Supply Voltage

F5

--

--

Not Used

F6

BN

2509

Left Rear Park Lamps Supply Voltage

Fuse Block - Underhood C4


Object Number: 362760  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A1-A2

--

--

Not Used

A3

D-BU

2115

Right Turn Signal Lamps Supply Voltage

D-BU

2115

Right Turn Signal Lamps Supply Voltage

A4

BK

550

Ground

BK

550

Ground

A5

--

--

Not Used

A6

D-GN

1329

Left Horn Fuse Supply Voltage

D-GN

1329

Right Horn Fuse Supply Voltage

B1

--

--

Not Used

B2

D-BU

545

Left DRL Supply Voltage

D-BU

545

Right DRL Supply Voltage

B3-B6

--

--

Not Used

C1

BN

2309

Left Front Park Lamps Supply Voltage

BN

2309

Right Front Park Lamps Supply Voltage

C2

--

--

Not Used

C3-C4

--

--

Not Available

C5

BN

2309

Front Park Lamps Supply Voltage

BN

2309

Front Park Lamps Supply Voltage

C6

RD

228

Windshield Washer Pump Control

D1-D2

--

--

Not Used

D3-D4

--

--

Not Available

D5

--

--

Not Used

D6

PU

34

Left Fog Lamps Supply Voltage (T96)

PU

34

Right Fog Lamps Supply Voltage (T96)

E1

L-BU

2114

Left Turn Signal Lamps Supply Voltage

L-BU

2114

Left Turn Signal Lamps Supply Voltage

E2

D-GN/WH

711

Left Headlamp High Beam Supply Voltage

E3

L-GN/BK

311

Right Headlamp High Beam Supply Voltage

E4-E6

--

--

Not Used

F1-F3

--

--

Not Used

F4

YE

712

Left Headlamp Low Beam Supply Voltage

F5

TN/WH

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 (GY)

Pin

Wire Color

Circuit No.

Function

A

RD

842

Battery Positive Voltage

B

RD

542

Battery Positive Voltage

Fuse Block - Underhood C6


Object Number: 845608  Size: CH

Connector Part Information

    • 15393172
    • 2-Way F J-Type (L-GN)

Pin

Wire Color

Circuit No.

Function

A

RD

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 (BK)

Pin

Wire Color

Circuit No.

Function

A

RD

342

Battery Positive Voltage

RD

342

Battery Positive Voltage (HP2)

B

RD

42

Battery Positive Voltage

Fuse Block - Underhood C9


Object Number: 845602  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

RD

442

Battery Positive Voltage

B

--

--

Not Used

Fuse Block - Underhood - Cooling Fan (10 Series)


Object Number: 1541701  Size: LF

Fuse Block - Underhood - Cooling Fan (10 Series)

Device

Rating

Description

Cool/Fan Fuse

40A

Cool/Fan 1 Relay

Cool/Fan Fuse

40A

Cool/Fan 2 Relay

Cool/Fan Fuse

10A

Cool/Fan 3 Relay

Cool/Fan 1 Relay

--

Cooling Fan - Left

Cool/Fan 2 Relay

--

Cooling Fan - Left and Right High Speed

Cool/Fan 3 Relay

--

Cooling Fan - Left and Right Low Speed

Fuse Block - Underhood - Cooling Fan Top View (10 Series)


Object Number: 1541705  Size: LF

Fuse Block - Underhood - Cooling Fan Bottom View (10 Series)


Object Number: 1541703  Size: LF

Fuse Block - Underhood - Cooling Fan (10 Series) Wire Entry

Connector Part Information

    • 15490629
    • 29-Way F PA66 GF14 Series (BK)

Pin

Wire Color

Circuit No.

Function

A1

BK

250

Ground

A2

--

--

Battery Positive Voltage Bus

A3

D-BU

473

High Speed Cooling Fan Control

A4

L-BU

409

Cooling Fan Motor Supply Voltage

A6

--

--

Cooling Fan Motor Supply Voltage

A8

--

--

Battery Positive Voltage Bus

B1

--

--

Not Used

B3

YE

5358

Cooling Fan Motor Control

B6

D-BU

473

High Speed Cooling Fan Control

B8

--

--

Battery Positive Voltage Bus

C1

--

--

Not Used

C7

--

--

Battery Positive Voltage Bus

C8

--

--

Battery Positive Voltage Bus

D1

--

--

Battery Positive Voltage Bus

D2

--

--

Battery Positive Voltage Bus

E1-E2

--

--

Not Used

E3

GY

532

Cooling Fan Motor Supply Voltage

E5

--

--

Battery Positive Voltage Bus

F1-F2

--

--

Not Used

F3

D-GN

335

Low Speed Cooling Fan Control

F5

--

--

Battery Positive Voltage Bus

G5

--

--

Battery Positive Voltage Bus

G6

--

--

Battery Positive Voltage Bus

G7

--

--

Not Used

G8

--

--

Battery Positive Voltage

H7-H8

--

--

Not Used

Fuse Block - Underhood - Cooling Fan (10 Series) Connector


Object Number: 365960  Size: CH

Connector Part Information

    • 12160893
    • 1-Way F Metri-Pack 800 Series Flxlck Maxi (BK)

Pin

Wire Color

Circuit No.

Function

A

RD

1

Battery Positive Voltage

Fuse Block - Underhood - Secondary Label (HP2)


Object Number: 1558839  Size: LF

Fuse Block - Underhood - Secondary Label Usage

Device

Rating

Description

HYBRID PWR Fuse

30A

Electronic Power Take-Off (EPTO) Switch, AUX HTR PMP and TRANS PMP Relays, Heated Oxygen Sensors

HYBRID O2B

15A

Heated Oxygen Sensors Bank 2 Sensor 1 and Bank 1 Sensor 2

AUX HTR PUMP

10A

AUX HTR Pump Relay

ESCM

15A

Energy Storage Control Module (ESCM)

HCM-I

10A

Starter Generator Control Module and Hybrid Control Module (HCM)

HYBRID O2A

15A

Heated Oxygen Sensor Bank 2 Sensor 1 and Bank 1 Sensor 1

TRANS PUMP

15A

Trans Pump Relay

HCM-B

10A

Hybrid Control Module (HCM)

EHPS-I

10A

Electro Hydraulic Power Steering (EHPS) Module

COOL PUMP

15A

Starter/Generator Control Module Coolant Pump

PWR MAINT

10A

Electronic Power Take-Off (EPTO) Switch, AUX HTR Pump Relay, TRANS PMP Relay, and Park/Neutral Position Switch

SCGM COOL PUMP/FAN RELAY

--

REDBOX Coolant Pump and Fan

AUX HTR PUMP RELAY

--

Auxiliary Heater Pump

TRANS PUMP RELAY

--

Transmission Pump

PWR MAINT RELAY

--

Electronic Power Take-Off (EPTO) Switch, AUX HTR Pump Relay, TRANS PMP Relay, Park/Neutral Position Switch, and Heated Oxygen Sensors

Fuse Block - Underhood - Secondary Top View (HP2)


Object Number: 1558841  Size: LF

Fuse Block - Underhood - Secondary Bottom View (HP2)


Object Number: 1363463  Size: LF

Fuse Block - Underhood - Secondary Wire Entry (HP2)

Connector Part Information

    • 15424711
    • 66-Way F PA66 GF14 Series (BK)

Pin

Wire Color

Circuit No.

Function

A1

YE

5541

Power Maintain Relay Contact Control

A2

RD

342

Battery Positive Voltage

A3

PU

5538

Auxiliary Transmission Fluid Pump Relay Control

A4

PK

1639

Ignition 1 Voltage

B1-B4

--

--

Not Used

C1

PU/WH

5539

Power Maintain Relay Coil Control

C2

RD

342

Battery Positive Voltage

C3

PK/WH

5537

Transmission Pump Relay Coil Control

C4

OG

540

Battery Positive Voltage

D1-D2

--

--

Not Used

D3

TN/WH

5543

Auxiliary Heater Pump Relay Contact Control

D4

PK

1639

Ignition 1 Voltage

E1-E4

--

--

Not Used

F1-F2

--

--

Not Used

F3

WH

5542

Auxiliary Heater Pump Relay Coil Control

F4

OG

740

Battery Positive Voltage

G1-G3

--

--

Not Used

G4

PK

1839

Ignition 1 Voltage

G5

PK

3

Ignition 1 Voltage

G6

PK

1939

Ignition 1 Voltage

H1-H2

--

--

Not Used

H3

RD

1542

Battery Positive Voltage

H4

OG

1940

Battery Positive Voltage

H5

--

--

Not Used

H6

OG

2740

Battery Positive Voltage

J1-J2

--

--

Not Used

J3

RD

1542

Battery Positive Voltage

J4

OG

540

Battery Positive Voltage

J5

--

--

Not Used

J6

OG

740

Battery Positive Voltage

K1

--

--

Not Used

K2

PK

1639

Ignition 1 Voltage

K3

YE

5541

Power Maintain Relay Contact Control

K4

PK

539

Ignition 1 Voltage

PK

539

Ignition 1 Voltage

K5

--

--

Not Used

K6

PK

1539

Ignition 1 Voltage

PK

1539

Ignition 1 Voltage

L1

--

--

Not Used

L2

L-BU

703

Coolant Pump Voltage

L3-L4

--

--

Not Used

L5

YE

5541

Power Maintain Relay Contact Control

L6

D-GN

591

Ignition 1 Voltage

M1

PK

2014

Coolant Pump Relay Control

M2

--

--

Not Used

M3

GY

960

Coolant Pump/Fan Relay Voltage

M4-M6

--

--

Not Used

N1

RD

342

Battery Positive Voltage

N2

--

--

Not Used

N3

RD

342

Battery Positive Voltage

N4-N6

--

--

Not Used

Fuse Block - I/P Label


Object Number: 1499448  Size: MF

Fuse Block - I/P Label Usage

Device

Rating

Description

RR WPR Fuse

15A

Not Used

SEO ACCY Fuse

10A

Upfitter Provisions

WS WPR Fuse

25A

Windshield Wiper Motor and Module

TBC ACCY Fuse

10A

Body Control Module (BCM)

IGN 3 Fuse

10A

Rear Wheel Steering Control Module

4WD Fuse

15A

Front Axle Actuator, Transfer Case Shift Control Switch, Auxiliary Battery Relay

HTR A/C Fuse

30A

HVAC Control Module

LOCK Relay

--

Door Lock Actuators

HVAC 1 Fuse

10A

HVAC Control Module, HVAC Actuators

L DOOR - 12-WAY - BLACK

--

Fuse Block - Left I/P C3 (Driver Door Harness)

CRUISE Fuse

10A

Cruise Control Switch, Cruise Control Module, Steering Wheel Speed/Position Sensor, Power Take-Off (PTO) Switch

UNLOCK Relay

--

Door Unlock Actuators

RR FOG LP Relay

--

Fog Lamp - LR, Fog Lamp - RR (Export)

BRAKE Fuse

10A

Stop Lamp Switch, Electronic Brake Control Module (EBCM), Clutch Start Switch

DRIVER UNLOCK Relay

--

Door Latch Assembly-Driver (Base)

IGN O Fuse

10A

Passlock Sensor, Automatic Transmission, Powertrain Control Module (PCM) - Gas, Engine Control Module (ECM) - Diesel

TBC IGN O Fuse

10A

Body Control Module (BCM)

VEH CHMSL Fuse

10A

Center High Mounted Stop Lamp (CHMSL)

LT TRLR ST/TRN Fuse

10A

Trailer Wiring Provisions

LT TRN Fuse

10A

Turn Signal Lamps - Left, Marker Lamps - Left, Driver Door Module (DDM), Instrument Panel Cluster (IPC)

VEH STOP Fuse

15A

Tail/Stop and Turn Signal Lamps-Rear, Throttle Actuator Control (TAC)

BODY - 12-WAY - BROWN

--

Fuse Block - Left I/P C4 (Body Harness)

RT TRLR ST/TRN Fuse

10A

Trailer Wiring Provisions

RT TRN Fuse

10A

Turn Signal Lamps - Right, Marker Lamps - Right, Front Passenger Door Module (FPDM), Instrument Panel Cluster (IPC)

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 Relays

ECC Fuse

10A

Not Used

TBC 2C Fuse

15A

Body Control Module (BCM)

FLASH Fuse

25A

Turn Signal/Hazard Flasher Module

CB - LT DOORS

25A

Window Switch - LR, Driver Door Module (DDM)

TBC 2B Fuse

15A

Body Control Module (BCM)

TBC 2A Fuse

15A

Body Control Module (BCM)

Turn Signal/Hazard Flasher Module

--

Turn Signal/Hazard Flashers

Fuse Block - I/P Top View (Except YE9)


Object Number: 1865852  Size: MF

Fuse Block - I/P Top View (YE9)


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 (BK)

Pin

Wire Color

Circuit No.

Function

A1

--

--

Not Used

A2

L-BU

244

Passenger Door Lock Switch Lock Supply Voltage (AU3 w/o YE9)

GY/BK

255

Power Door Lock Fuse Supply Voltage (Crew Cab w/YE9)

A3

--

--

Not Used

A4

D-BU

245

Passenger Door Lock Switch Unlock Supply Voltage (AU3 w/o YE9)

TN/BK

254

Power Door Unlock Fuse Supply Voltage (Crew Cab w/YE9)

A5

--

--

Not Used

A6

D-BU

2115

Right Turn Signal Lamps Supply Voltage

A7

OG

4240

Battery Positive Voltage (Except Base)

A8

YE

1618

Trailer Left Rear Turn/Stop Lamp Supply Voltage

A9

D-GN

1619

Trailer Right Rear Turn/Stop Lamp Supply Voltage

A10

--

--

Not Used

A11

D-BU

2115

Right Turn Signal Lamps Supply Voltage

D-BU

2115

Right Turn Signal Lamps Supply Voltage

A12

RD

42

Battery Positive Voltage

B1

YE

143

Accessory Voltage

B2

YE

43

Accessory Voltage

B3-B5

--

--

Not Used

B6

L-GN

1391

Driver Door Unlock Relay Control (AU3 w/o YE9)

B7

--

--

Not Used

B8

WH

17

Stop Lamp Switch Signal

B9-B10

--

--

Not Used

B11

L-BU

195

Door Lock Control (AU3 w/o YE9)

L-BU

195

Door Lock Control (AU3 w/o YE9)

B12

OG

2140

Battery Positive Voltage

C1

--

--

Not Used

C2

BN

141

Ignition 3 Voltage (C42)

C3

--

--

Not Used

C4

BN

41

Ignition 3 Voltage

BN

41

Ignition 3 Voltage (w/PTO or K34)

C5

BN

441

Ignition 3 Voltage (NW7)

C8

L-BU

1620

Trailer CHMSL Supply Voltage

L-BU

1620

Trailer CHMSL Supply Voltage

C9

GY

295

Door Lock Actuator Lock Control (w/o YE9)

C10-C12

--

--

Not Used

D1

YE

243

Accessory Voltage

D2

--

--

Not Used

D3

BN

341

Ignition 3 Voltage

BN

341

Ignition 3 Voltage

D4

--

--

Not Used

D5

BN

441

Ignition 3 Voltage

BN

441

Ignition 3 Voltage

D6-D8

--

--

Not Used

D9

WH

194

Door Unlock Control (AU3 w/o YE9)

WH

194

Door Unlock Control (AU3 w/o YE9)

D10

BK/WH

1851

Ground

D11

TN

294

Door Lock Actuator Unlock Control (AU3 w/o YE9)

D12

BN

541

Ignition 3 Voltage (NYS)

E1

BN

241

Ignition 3 Voltage (TP2)

E2

BN

241

Ignition 3 Voltage - Front Axle Actuator (NP1/NP2/NP8)

BN

241

Ignition 3 Voltage - Transfer Case Control Switch (NP1/NP8)

E3

--

--

Not Used

E4

GY

118

Left Front Door Speaker Output (-) (UQ3/UQ5/UQ7)

E5

BN

1046

DDM Class 2 Serial Data (YE9)

E6

--

--

Not Used

E7

PK

1691

Automatic Day/Night Mirror Low Reference (DF5)

E8

WH

530

Ignition 0 Voltage

E9

--

--

Not Used

E10

RD

842

Battery Positive Voltage

E11

OG

4040

Battery Positive Voltage

E12

OG

2240

Battery Positive Voltage

F1-F2

--

--

Not Used

F3

L-BU

2114

Left Turn Signal Lamps Supply Voltage

L-BU

2114

Left Turn Signal Lamps Supply Voltage

F4

GY/BK

745

Left Front Door Ajar Switch Signal (w/o YE9)

GY

1690

Automatic Day/Night Mirror Signal (DF5)

F5

TN

201

Left Front Door Speaker Output (+) (UQ3/UQ5/UQ7)

F6

BK

1050

Ground

F7

BN/WH

230

Fuel Pump Enable Control (AU3 w/o YE9)

F8

PK

1020

Ignition 0 Voltage

F9

L-BU

1320

CHMSL Supply Voltage/Stop Lamp Supply Voltage (4.3L w/K34)

L-BU

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 (BK)

Pin

Wire Color

Circuit No.

Function

A

OG

300

Ignition 3 Voltage

B

L-GN

1427

Right Turn Signal Switch Signal

C

D-GN

1428

Left Turn Signal Switch Signal

D

WH

111

Hazard Switch Signal

E

WH

1390

Ignition 0 Voltage

F

BN

4

Accessory Voltage

Fuse Block - I/P C3


Object Number: 524807  Size: CH

Connector Part Information

    • 12194035
    • 12-Way F Metri-Pack 280 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

BN/WH

230

Instrument Panel Lamps Dimming Control (AU3 w/o YE9)

B

WH

194

Door Unlock Control (AU3 w/o YE9)

C

GY

295

Door Lock Actuator Lock Control (AU3 w/o YE9)

OG

1240

Battery Positive Voltage (YE9)

D

BK

1050

Ground (Except YE9)

BK

1050

Ground (Except YE9)

BK

1050

Ground (YE9)

E

--

--

Not Used

F

TN

694

Driver Door Lock Actuator Unlock Control (AU3 w/o YE9)

OG

4140

Battery Positive Voltage (Except Base)

G

TN

201

Left Front Speaker Output (+) (UQ3)

TN

201

Left Front Speaker Output (+)

H

PK

1691

Automatic Day/Night Mirror Low Reference (DF5)

J

L-BU

195

Door Lock Control (AU3 w/o YE9)

BN

1046

DDM Class 2 Serial Data

K

GY/BK

745

Left Front Door Ajar Switch Signal (w/o YE9)

GY

1690

Automatic Day/Night Mirror Signal (DF5)

L

GY

118

Left Front Speaker Output (-) (UQ3)

GY

118

Left Front Speaker Output (-)

M

BK

1851

Ground (AU3 w/o YE9)

L-BU

2114

Left Turn Signal Lamps Supply Voltage (YE9)

Fuse Block - I/P C4 (Crew Cab)


Object Number: 655838  Size: CH

Connector Part Information

    • 15328768
    • 12-Way F Metri-Pack 280 Series Flexlock (BN)

Pin

Wire Color

Circuit No.

Function

A-D

--

--

Not Used

E

TN

294

Door Lock Actuator Unlock Control (Crew Cab w/YE9)

TN

294

Door Lock Actuator Unlock Control (Crew Cab w/YE9)

F-J

--

--

Not Used

K

GY

295

Left Rear Door Lock Actuator Lock Control (Crew Cab w/YE9)

GY

295

Right Rear Door Lock Actuator Lock Control (Crew Cab w/YE9)

L

--

--

Not Used

M

OG

1240

Battery Positive Voltage (Crew Cab w/YE9)

Relay Block - I/P Label


Object Number: 1499445  Size: MF

Relay Block I/P Label Usage

Device

Rating

Description

SEO - 6-WAY - BLK

--

Mobile Radio and Emergency Lighting

TRAILER - 6-WAY - BRN

--

Trailer Provisions

UPFIT - 4-WAY - CRM

--

Upfitter Provisions

SL RIDE - 6-WAY - GRY

--

Manual Selectable Ride (MSR)

HDLNR 2 - 6-WAY - CRM

--

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

BODY - 12-WAY - WHT

--

Door Courtesy Lamps, Driver/Passenger Seat Modules, Heated Seat Module - LR/RR, Rear Window Defogger Grid, Automatic Occupant Sensing

DEFOG Relay (C49)

--

Rear Window Defogger Grid

HDLNR 1 - 6-WAY - BRN

--

Courtesy Reading Lamps, Garage Door Opener, Inside Rearview Mirror, Vanity Mirror Lamps

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

--

Rear Seat Audio (RSA) Module, OnStar Module, Audio Amplifier (Bose)

Relay Block - I/P Top View


Object Number: 861868  Size: MF

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 (GY)

Pin

Wire Color

Circuit No.

Function

A1

L-GN

24

Backup Lamp Supply Voltage

L-GN

24

Backup Lamp Supply Voltage

A2

D-BU/WH

149

Cargo Lamp Low Control

D-BU/WH

149

Cargo Lamp Low Control

A3

BK/WH

1704

Low Reference

A4

D-GN/WH

636

Ambient Air Temperature Sensor Signal

A5

BK/WH

1851

Ground

BK/WH

1851

Ground

A6

WH

193

Rear Defog Relay Control (C49)

A7

--

--

Not Used

A8

BN/WH

230

Instrument Panel Lamps Dimming Control

A9

YE

1139

Ignition 1 Voltage

A10

D-GN/WH

817

Vehicle Speed Signal (JC4)

A11

BN/WH

230

Instrument Panel Lamps Dimming Control (NW7)

BN/WH

230

Instrument Panel Lamps Dimming Control (NP8 or NP1)

A12

GY/BK

690

Courtesy Lamp Supply Voltage

B1

PK

1045

Serial Communications Circuit

B2

OG

3740

Battery Positive Voltage

B3

BK/WH

1851

Ground

BK/WH

1851

Ground

B4

--

--

Not Used

B5

BK/WH

1851

Ground

BK/WH

1851

Ground

B6

OG

1840

Battery Positive Voltage

B7

RD

642

Battery Positive Voltage

B8

BN/WH

230

Instrument Panel Lamps Dimming Control

BN/WH

230

Instrument Panel Lamps Dimming Control (NYS)

B9

D-GN/WH

817

Vehicle Speed Signal

D-GN/WH

817

Vehicle Speed Signal (Y91)

B10

--

--

Not Used

B11

OG

3240

Battery Positive Voltage

B12

--

--

Not Used

C1

OG

340

Battery Positive Voltage

C2

BN/WH

230

Instrument Panel Lamps Dimming Control (AU3 w/o YE9)

C3

BN/WH

230

Instrument Panel Lamps Dimming Control (YE9)

C4

--

--

Not Used

C5

BK/WH

1851

Ground

C8

BN/WH

230

Instrument Panel Lamps Dimming Control

BN/WH

230

Instrument Panel Lamps Dimming Contro

C9

OG

1340

Battery Positive Voltage

C10

BN

2409

Interior Park Lamps Supply Voltage

C11-C12

--

--

Not Used

D1

WH/BK

5515

Inside Air Temperature Sensor Assembly Control (CJ2)

D2

BN/WH

230

Instrument Panel Lamps Dimming Control (w/o YE9)

BN/WH

230

Instrument Panel Lamps Dimming Control (Except 10 Series or Crew Cab)

D3

BN/WH

230

Instrument Panel Lamps Dimming Control (PTO)

BN/WHT

230

Instrument Panel Lamps Dimming Control (HP2)

D4

OG

1732

Inadvertent Power Supply Voltage

D5

BK/WH

1851

Ground

D8

BK/WH

1851

Ground (Y91)

BK/WH

1851

Ground

D9

BK

1050

Ground

D10

BN

2409

Interior Park Lamps Supply Voltage (Except 10 Series or Crew Cab)

D11

--

--

Not Used

D12

OG

2340

Battery Positive Voltage

E1

BN

718

Low Reference (CJ2)

E2

PK

1691

Automatic Day/Night Mirror Low Reference (DF5)

E3

--

--

Not Used

E4

PU/WH

1382

LED Dimming Signal

PU/WH

1382

LED Dimming Signal (NP1/NP8)

E5

BK/WH

1851

Ground (Y91 w/UQ7)

BK/WH

1851

Ground (AU3 w/o YE9)

BK/WH

1851

Ground (4.3L)

BK/WH

1851

Ground (HP2)

E6

D-GN/WH

817

Vehicle Speed Signal

D-GN/WH

817

Vehicle Speed Signal (NYS)

E7

PU/WH

1382

LED Dimming Signal

PU/WH

1382

LED Dimming Signal

E8

BK/WH

1851

Ground

BK/WH

1851

Ground

E9

--

--

Not Used

E10

RD

242

Battery Positive Voltage (Z82)

E11-E12

--

--

Not Used

F1

D-GN

734

Inside Air Temperature Sensor Signal (CJ2)

F2

GY

1690

Automatic Day/Night Mirror Signal (DF5)

F3

PK

739

Ignition 1 Voltage

F4

TN/WH

1384

Selective Ride Control Switch Signal (ZX3)

F5

BK/WH

1851

Ground (Y91 w/U2K)

BK/WH

1851

Ground (JC4)

BK/WH

1851

Ground (NP1/NP8)

F6

PU/WH

1382

LED Dimming Signal (NYS)

F7

OG

4540

Battery Positive Voltage

F8

BK/WH

1851

Ground (UE1/Y91)

F9

L-BU

1620

Trailer CHMSL Supply Voltage (Z82)

F10

D-BU

47

Trailer Auxiliary Supply Voltage

F11

YE

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 (BN)

Pin

Wire Color

Circuit No.

Function

A

L-GN

24

Backup Lamp Supply Voltage (YE9)

B

--

--

Not Used

C

BK

1050

Ground

D

D-BU/WH

149

Cargo Lamp Low Control

E

YE

1139

Ignition 1 Voltage

F

D-GN

2308

Passenger Air Bag Off Indicator Control (AL0)

G

BK/WH

1704

Low Reference (YE9)

H

D-BU

2307

Passenger Air Bag On Indicator Control (AL0)

J

L-BU

1620

CHMSL Supply Voltage

K

D-GN/WH

636

Ambient Air Temperature Sensor Signal (YE9)

L

GY/BK

690

Courtesy Lamp Supply Voltage

GY/BK

690

Courtesy Lamp Supply Voltage (w/ Crew Cab)

M

OG

1732

Inadvertent Power Supply Voltage

Relay Block - I/P C4


Object Number: 366003  Size: CH

Connector Part Information

    • 12193922
    • 6-Way F Metri-Pack 280 Series Flexlock (CM)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

PK

1691

Automatic Day/Night Mirror Low Reference (DL3)

C

GY

1690

Automatic Day/Night Mirror Signal (DL3)

D

D-GN

734

Inside Air Temperature Sensor Signal (CJ2)

E

BN

718

Low Reference

F

WH/BK

5515

Inside Air Temperature Sensor Assembly Control (CJ2)

Relay Block - I/P C5


Object Number: 366015  Size: CH

Connector Part Information

    • 12193928
    • 6-Way F Metri-Pack 280 Series Flexlock (GY)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

PU/WH

1382

LED Dimming Signal (ZX3)

PU/WH

1382

LED Dimming Signal (5G4/5X7/5Y0/TRW)

C

TN/WH

1384

Selective Ride Control Switch Signal (ZX3)

D

PK

739

Ignition 1 Voltage (ZX3)

E

BK

1050

Ground (ZX3)

F

BN/WH

230

Instrument Panel Lamps Dimming Control (ZX3)

BN/WH

230

Instrument Panel Lamps Dimming Control (5X7/5G4/TRW/5Y0)

Relay Block - I/P C7 (Z82)


Object Number: 886343  Size: CH

Connector Part Information

    • 12193924
    • 6-Way F Metri-Pack 280 Series Flexlock (WH)

Pin

Wire Color

Circuit No.

Function

A

BN

2409

Interior Park Lamps Supply Voltage

B

RD

242

Battery Positive Voltage

C

D-BU

47

Trailer Auxiliary Supply Voltage

D

L-BU

1620

Trailer CHMSL Supply Voltage

E

--

--

Not Used

F

BK

1050

Ground

Relay Block - I/P C8 (5G4/5X7/5Y0/TRW)


Object Number: 366024  Size: CH

Connector Part Information

    • 12193930
    • 6-Way F Metri-Pack 280 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

OG

2340

Battery Positive Voltage (5G4/TRW)

B-C

--

--

Not Used

D

YE

243

Accessory Voltage (9L4)

E

OG

4540

Battery Positive Voltage (5G4/5X7/5Y0/TRW)

F

BK

1050

Ground (5X7/5Y0/5G4/TRW)

Relay Block - I/P C9


Object Number: 524807  Size: CH

Connector Part Information

    • 12194035
    • 12-Way F Metri-Pack 280 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

PK

1045

Serial Communications Circuit

C

D-GN/WH

817

Vehicle Speed Signal (UQ7 w/o Y91)

D

OG

3740

Battery Positive Voltage (UQ7 w/o Y91)

E

OG

340

Battery Positive Voltage (UQ7 w/o Y91)

ORN

340

Battery Positive Voltage (U2K w/o Y91)

F-G

--

--

Not Used

H

OG

3240

Battery Positive Voltage (UE1 w/o Y91)

OG

3240

Battery Positive Voltage (UE1 w/o Y91)

J

OG

3240

Battery Positive Voltage (U42 w/o Y91)

K

BK/WH

1851

Ground (U42)

BK/WH

1851

Ground (UE1)

L

BK/WH

1851

Ground (w/o Y91)

M

BK/WH

1851

Ground (UQ7 w/o Y91)

BK/WH

1851

Ground (U2K)

Relay Block - I/P C10


Object Number: 831381  Size: CH

Connector Part Information

    • 15357030
    • 12-Way F Metri-Pack 280 Series Flex-Lock (NA)

Pin

Wire Color

Circuit No.

Function

A-C

--

--

Not Used

D

D-GN

2308

Passenger Air Bag Off Indicator Control (AL0)

E

OG

1440

Battery Positive Voltage (AG2)

F

BN/WH

230

Instrument Panel Lamps Dimming Control (YE9 and Crew Cab)

BN/WH

230

Instrument Panel Lamps Dimming Control (YE9 and Crew Cab w/o Y91)

G

D-BU

2307

Passenger Air Bag On Indicator Control (AL0)

H

OG

1440

Battery Positive Voltage (AG1)

J

--

--

Not Used

K

OG

1340

Battery Positive Voltage (Crew Cab w/YE9)

L

PU

293

Rear Defog Element Supply Voltage (C49)

M

YE

1139

Ignition 1 Voltage (AL0)

YE

1139

Ignition 1 Voltage

Junction Block - I/P Top View


Object Number: 798142  Size: MF

Junction Block - I/P C1 - Bottom View


Object Number: 1156070  Size: MF

Junction Block - I/P Wire Entry

Connector Part Information

    • 15401495
    • 48-Way F Metri-Pack 280 Series (BK)

Pin

Wire Color

Circuit No.

Function

2A

D-GN

117

Right Front Speaker Output (-) (UQ3/UQ5)

D-GN

117

Right Front Speaker Output (-) (UQ7/Y91)

2B

L-GN

200

Right Front Speaker Output (+) (UQ3/UQ5)

L-GN

200

Right Front Speaker Output (+) (UQ7/Y91)

2C

BK

1851

Ground (AU3 w/o YE9)

2D

BN/WH

230

Instrument Panel Lamps Dimming Control (AU3 w/o YE9/Y91)

2E

TN/WH

746

Right Front Door Ajar Switch Signal (w/o YE9)

2F

BK

1050

Ground

3A- 3F

--

--

Not Used

4A

BK

1050

Ground

4B

OG

52

Blower Motor High Control (C42 and CJ3)

GY/BK

2337

Lower Right Air Temperature Sensor Signal (CJ2)

4C

PU

73

Medium 3 Blower Motor Control (C42 and CJ3)

BN

718

Low Reference (CJ2)

4D

RD

542

Battery Positive Voltage

4E

TN

63

Blower Motor Medium 1 Control (C42 and CJ3)

PU

1838

Recirculation Door Position Signal (CJ2)

4F

PU/WH

760

Blower Motor Speed Control (CJ2)

4G

YE

60

Blower Motor Low Control (C42/CJ3)

4H

--

--

Not Used

4J

L-BU/BK

1688

5-Volt Reference (CJ3/CJ2)

4K

L-BU

72

Medium 2 Blower Motor Control (CJ3/C42)

4L

--

--

Not Used

4M

YE

1791

Low Reference (CJ2/CJ3)

5A

--

--

Not Used

5B

L-GN

2275

Mode Door Position Signal (CJ2/CJ3)

5C

TN

2273

Mode Door Control (CJ2/CJ3)

5D

D-BU

1199

Left Air Temperature Door Control (CJ2/CJ3)

5E

L-BU

733

Left Air Temperature Door Position Signal (CJ2/CJ3)

5F

--

--

Not Used

6A

OG

3840

Battery Positive Voltage (CF5)

6B

BN

2409

Interior Park Lamps Supply Voltage

6C

BK

1050

Ground

6D

D-BU

1353

RAP Supply Voltage (CF5)

6E-6F

--

--

Not Used

7A

GY

295

Door Lock Actuator Lock Control (AU3 w/o YE9)

7B

TN

1047

PDM Class 2 Serial Data

7C

OG

4240

Battery Positive Voltage (YE9)

7D

TN

294

Door Lock Actuator Unlock Control (AU3 w/o YE9)

7E

WH

194

Door Unlock Control (AU3 w/o YE9)

OG

1340

Battery Positive Voltage (YE9)

7F

L-BU

195

Door Lock Control (AU3 w/o YE9)

D-BU

2115

Right Turn Signal Lamps Supply Voltage (Except Base)

8A

WH/BK

2339

Lower Left Air Temperature Sensor Signal (CJ2)

8B

--

--

Not Used

8C

BN

341

Ignition 3 Voltage (CJ2/CJ3)

8D

D-BU

1646

Right Air Temperature Door Position Signal (CJ2/CJ3)

8E

WH/BK

1236

Right Air Temperature Door Control (CJ2/CJ3)

8F

D-GN

1614

Recirculation Door Control (CJ2/CJ3)

Junction Block - I/P - C2


Object Number: 366024  Size: CH

Connector Part Information

    • 12193930
    • 6-Way F Metri-Pack 280 Series Flexlock (BK)

Pin

Wire Color

Circuit No.

Function

A

D-GN

117

Right Front Speaker Output (-) (UQ3/UQ5/UQ7)

D-GN

117

Right Front Speaker Output (-) (UQ3)

B

L-GN

200

Right Front Speaker Output (+) (UQ3/UQ5/UQ7)

L-GN

200

Right Front Speaker Output (+) (UQ3)

C

BK

1851

Ground (AU3 w/o YE9)

D

BN/WH

230

Instrument Panel Lamps Dimming Control (AU3 w/o YE9)

E

BK/WH

746

Right Front Door Ajar Switch Signal (w/o YE9)

F

BK

1050

Ground (YE9)

BK

1050

Ground (w/o YE9)

BK

1050

Ground (w/o YE9)

Junction Block - I/P - C4


Object Number: 655757  Size: CH

Connector Part Information

    • 12194037
    • 12-Way F Metri-Pack 280 Series Flexlock (BN)

Pin

Wire Color

Circuit No.

Function

A

BK

1050

Ground

B

OG

52

Blower Motor High Control (C42/CJ3)

GY/BK

2337

Lower Right Air Temperature Sensor Signal (CJ2)

C

PU

73

Medium 3 Blower Motor Control (C42/CJ3)

BN

718

Low Reference (CJ2)

BN

718

Low Reference (CJ2)

D

RD

542

Battery Positive Voltage

E

TN

63

Blower Motor Medium 1 Control (C42/CJ3)

PU

1838

Recirculation Door Position Signal (CJ2)

F

PU/WH

760

Blower Motor Speed Control (CJ2)

G

YE

60

Blower Motor Low Control (C42/CJ3)

H

L-BU/BK

1688

5-Volt Reference (CJ2/CJ3)

L-BU/BK

1688

5-Volt Reference (CJ2/CJ3)

J

L-BU/BK

1688

5-Volt Reference (CJ2)

L-BU/BK

1688

5-Volt Reference (CJ2)

L-BU/BK

1688

5-Volt Reference (CJ3)

K

L-BU

72

Medium 2 Blower Motor Control (C42/CJ3)

L

YE

1791

Low Reference (CJ2)

YE

1791

Low Reference (CJ2)

YE

1791

Low Reference (CJ3)

M

YE

1791

Low Reference (CJ2/CJ3)

YE

1791

Low Reference (CJ2/CJ3)

Junction Block - I/P - C5


Object Number: 366012  Size: CH

Connector Part Information

    • 12193924
    • 6-Way F Metri-Pack 280 Series Flexlock (BN)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

L-GN

2275

Mode Door Position Signal

C

TN

2273

Mode Door Control

D

D-BU

1199

Left Air Temperature Door Control (CJ2/CJ3)

E

L-BU

733

Left Air Temperature Door Position Signal (CJ2/CJ3)

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 (L-GN)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

BN

2409

Interior Park Lamps Supply Voltage (U01)

C

BK

1050

Ground (U01/CF5)

D-F

--

--

Not Used

Junction Block - I/P - C7


Object Number: 366003  Size: CH

Connector Part Information

    • 12193922
    • 6-Way F Metri-Pack 280 Series Flexlock (CM)

Pin

Wire Color

Circuit No.

Function

A

GY

295

Door Lock Actuator Lock Control (AU3 w/o YE9)

B

TN

1047

Class 2 Serial Data

C

OG

4240

Battery Positive Voltage (YE9)

D

TN

294

Door Lock Actuator Unlock Control (AU3 w/o YE9)

E

WH

194

Door Unlock Control (AU3 w/o YE9)

OG

1340

Battery Positive Voltage

F

L-BU

195

Door Lock Control (AU3 w/o YE9)

D-BU

2115

Right Turn Signal Lamps Supply Voltage (YE9)

Junction Block - I/P - C8


Object Number: 366015  Size: CH

Connector Part Information

    • 12193928
    • 6-Way F Metri-Pack 280 Series Flexlock (GY)

Pin

Wire Color

Circuit No.

Function

A

WH/BK

2339

Lower Left Air Temperature Sensor Signal (CJ2)

B

BN

341

Ignition 3 Voltage - Air Temperature Actuator - Left (CJ2/CJ3)

BN

341

Ignition 3 Voltage - Air Temperature Actuator - Right (CJ2/CJ3)

C

BN

341

Ignition 3 Voltage - Recirculation Actuator (CJ2/CJ3)

BN

341

Ignition 3 Voltage - Mode Actuator (CJ2/CJ3)

D

D-BU

1646

Right Air Temperature Door Position Signal (CJ2/CJ3)

E

WH/BK

1236

Right Air Temperature Door Control (CJ2/CJ3)

F

D-GN

1614

Recirculation Door Control (CJ2/CJ3)

Junction Block - Rear


Object Number: 891656  Size: MF

Junction Block - Rear Lamps - C1


Object Number: 374043  Size: CH

Connector Part Information

    • 15305595
    • 8-Way F GT 280 Series Sealed (BU)

Pin

Wire Color

Circuit No.

Function

A

L-BU

2114

Left Turn Signal Lamps Supply Voltage

B

L-BU

1320

Stop Lamp Supply Voltage

C

L-GN

24

Backup Lamp Supply Voltage

D

BN/WH

2609

Right Rear Park Lamps Supply Voltage

E

BK

1550

Ground (30 Series Except Chassis Cab)

BK

1650

Ground (30 Series Chassis Cab)

BK

1750

Ground (10/20 Series)

F

--

--

Not Used

G

BN

2509

Left Rear Park Lamps Supply Voltage

H

D-BU

2115

Right Turn Signal Lamps Supply Voltage

Junction Block - Rear Lamps - C2


Object Number: 845660  Size: CH

Connector Part Information

    • 15317305
    • 8-Way F GT 280 Series (GY)

Pin

Wire Color

Circuit No.

Function

A

BK

1750

Ground (X88)

B

BK

1750

Ground (Z88)

C

BK

1750

Ground (Z88)

D

L-BU

1320

CHMSL Supply Voltage/Stop Lamp Supply Voltage

E

BN

2509

Left Rear Tail Lamps Supply Voltage

F

L-GN

24

Backup Lamp Supply Voltage (Z88)

D-GN

24

Backup Lamp Supply Voltage (X88)

G

--

--

Unavailable

H

D-BU

2114

Left Turn Signal Lamps Supply Voltage

Junction Block - Rear Lamps - C3


Object Number: 374048  Size: CH

Connector Part Information

    • 15305599
    • 8-Way F GT 280 Series (BN)

Pin

Wire Color

Circuit No.

Function

A

BN/WH

2609

Right Rear Park Lamps Supply Voltage

B-C

--

--

Not Used

D

BK

1750

Ground (03/43/53/NYS/R05)

E

BK

1750

Ground

F

--

--

Not Used

G

BN

2509

Left Rear Park Lamps Supply Voltage

H

BK

1750

Ground

Junction Block - Rear Lamps - C4


Object Number: 845662  Size: CH

Connector Part Information

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

Pin

Wire Color

Circuit No.

Function

A

L-BU

1320

Stop Lamp Supply Voltage

B

BN

2609

Right Rear Park Lamps Supply Voltage

C

BK

1750

Ground

D

BK

1750

Ground (Z88)

E

L-GN

24

Backup Lamp Supply Voltage (Z88)

D-GN

24

Backup Lamp Supply Voltage (X88)

F

D-BU

2115

Right Turn Signal Lamps Supply Voltage

G

--

--

Unavailable

H

BK

1750

Ground (Z88)

Relay Block - I/P


Object Number: 1704596  Size: MF
(1)Cavity C - Blackout (B/O) Switch
(2)C8 - Connector Location
(3)C5 - Connector Location
(4)Cavity E - 24 Voltmeter Gage Ground
(5)Cavity F - 24 Voltmeter Gage
(6)Relay Block - I/P

Relay Block - I/P C5


Object Number: 797092  Size: CH

Connector Part Information

    • 12193928
    • 6-Way F Metri-Pack 280 Series Flexlock (GY)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

PU/WH

1382

LED Dimming Signal (ZX3)

PU/WH

1382

LED Dimming Signal (5G4/5X7/5Y0/TRW)

C

TN/WH

1384

Selective Ride Control Switch Signal (ZX3)

D

PK

739

Ignition 1 Voltage (ZX3)

E

BK

150

Ground

F

BN

9

24 Voltmeter Gage Supply Voltage

Relay Block - I/P C8


Object Number: 797092  Size: CH

Connector Part Information

    • 12193930
    • 6-Way F Metri-Pack 280 Series Flexlock (BK)

Pin

Wire Color

Circuit No.

Function

A

OG

2340

Battery Positive Voltage (5G4/TRW)

B

--

--

Not Used

C

OG

40

Blackout (B/O) Service Switch

D

RD

243

Accessory Voltage (9L4)

E

OG

4540

Battery Positive Voltage (5G4/5X7/5Y0/TRW)

F

BK

1050

Ground (SX7/5Y0/5GY/TRW)

Figure 1:

Underhood Relay Block - Blackout (B/O) Lighting


Object Number: 1693357  Size: MF
(1)Turn Signal Relay
(2)Park Lamp Relay
(3)Headlamp Hi-Beam Relay
(4)Interrupt Wiring Harness
(5)Headlamp Low-Beam Relay
(6)DRL Relay
(7)Horn Relay
Figure 2:

12V and 24V Circuit Breakers (Ambulance)


Object Number: 1703354  Size: MF
(1)50 amp 24V Circuit Breaker
(2)Circuit Breaker Bracket
(3)120 amp 12V Circuit Breaker
(4)Screws

24V Trailer Fuse


Object Number: 350882  Size: CH

Connector Part Information

    • 12010105
    • 2-Way F Auto Fuse Holder

Pin

Wire Color

Circuit No.

Function

A

RD/BK

8009

24V Battery Voltage

B

RD/WH

802

Trailer Connector Supply Voltage

24V Accessory Fuse


Object Number: 350882  Size: CH

Connector Part Information

    • 12010105
    • 2-Way F Auto Fuse Holder

Pin

Wire Color

Circuit No.

Function

A

RD/BK

8009

24V Battery Voltage

B

RD/GY

8009

24V Feed (Not Used)