GM Service Manual Online
For 1990-2009 cars only
Connector 1: Fuse Block - Underhood Label (Early Production)
Connector 2: Fuse Block - Underhood Label (Late Production)
Connector 3: Fuse Block - Underhood Top View
Connector 4: Fuse Block - Underhood Bottom View
Connector 5: Fuse Block - Underhood - C1
Connector 6: Fuse Block - Underhood - C2
Connector 7: Fuse Block - Underhood - C3
Connector 8: Fuse Block - Underhood - C4
Connector 9: Fuse Block - Underhood - C5
Connector 10: Fuse Block - Underhood - C6
Connector 11: Fuse Block - Underhood - C7
Connector 12: Fuse Block - Body Label
Connector 13: Fuse Block - Body Top View
Connector 14: Fuse Block - Body Bottom View
Connector 15: Fuse Block - Body - C1
Connector 16: Fuse Block - Body - C2
Connector 17: Fuse Block - Body - C4 (YF7/YF1)
Connector 18: Fuse Block - Body - C5
Connector 19: Fuse Block - Rear (PRP) - Top View
Connector 20: Fuse Block - Rear (PRP) Bottom View

Fuse Block - Underhood Label (Early Production)


Object Number: 1554744  Size: MF

Fuse Block - Underhood Label (Late Production)


Object Number: 1757824  Size: MF

Fuse Block - Underhood - Label Usage (Gas)

No.

Device

Rating

Description

1

RDO BATT Fuse

15A

Radio (w/o UL5) or Chime Module (UL5)

2

PCM BATT Fuse

20A

Powertrain Control Module (PCM)

3

LT REAR STOP/TRN Fuse

10A

Trailer Stop/Turn Relay - Left (UF7) or C405 (Cutaway)

4

RT REAR STOP/TRN Fuse

10A

Trailer Stop/Turn Relay - Right (UF7) or C405 (Cutaway)

5

TRLR BCK/UP Fuse

10A

Trailer Wiring Harness (UY7) or C405 (Cutaway)

6

IGN 0 Fuse

10A

Powertrain Control Module (PCM), Body Control Module (BCM), Automatic Transmission

7

STOP LAMP Fuse

15A

Stop Lamp Switch

8

REAR DEF/HTD MIR Fuse

20A

HVAC Control Assembly (C49/DE5/DE7)

9

RT DRL/TRN Fuse

10A

Park/Turn Signal Lamp - RF

10

LT DRL/TRN Fuse

10A

Park/Turn Signal Lamp - LF

11

TBC 4 Fuse

15A

Body Control Module (BCM)

12

FUEL PMP Fuse

20A

FUEL PMP Relay

13

TRLR Fuse

30A

Trailer Wiring Harness (UY7)

14

HAZRD Fuse

15A

Turn Signal/Hazard Flasher Module

15

HORN Fuse

15A

HORN Relay

16

TBC 3 Fuse

15A

Body Control Module (BCM)

17

TRLR STOP/TRN Fuse

15A

Trailer Stop/Turn Relay - Left and Trailer Stop/Turn Relay - Right (UY7)

18

TBC 2 Fuse

15A

Body Control Module (BCM)

19

TBC Fuse

10A

Body Control Module (BCM)

20

RFA Fuse

10A

Remote Control Door Lock Receiver (RCDLR)

21

ENG 2 Fuse

10A

Even Fuel Injectors and Even Ignition Coils (4.8L/5.3L/6.0L) or Even Fuel Injectors and Ignition Coil (4.3L)

22

IGN E Fuse

10A

Stop Lamp Switch and A/C Relay

23

ENG 1 Fuse

15A

Odd Fuel Injectors, Odd Ignition Coils, EVAP Canister Purge Solenoid Valve, MAF/IAT Sensor, PNP Switch (4.8L/5.3L/6.0L) or Odd Fuel Injectors, Ignition Control Module, EVAP Canister Purge Solenoid Valve, MAF/IAT Sensor, PNP Switch (4.3L)

24

TBC IGN 1 Fuse

10A

Body Control Module (BCM)

25

SPARE Fuse

--

Not Used

26

ISRVM Fuse

10A

Inside Rearview Mirror (DF5)

27

CRNK Fuse

10A

Powertrain Control Module (PCM)

28

BTSI Fuse

10A

Stop Lamp Switch

29

AUX PWR Fuse

20A

Auxiliary Power Outlet 2

30

LTR Fuse

15A

Cigar Lighter/Auxiliary Power Outlet 1 and Data Link Connector (DLC)

31

IPC Fuse

10A

Instrument Panel Cluster (IPC)

32

A/C Fuse

10A

A/C Relay

33

SPARE Fuse

--

Not Used

34

CNSTR VENT SOL Fuse

10A

EVAP Canister Vent Solenoid Valve and SPARE Relay

35

SPARE Fuse

--

Not Used

36

BTSI BCK/UP Fuse

15A

Park/Neutral Position (PNP) Switch

37

AIRBAG Fuse

10A

PPS Module and Inflatable Restraint PASSENGER AIR BAG ON/OFF Indicator (Light Duty w/o YF7), Inflatable Restraint I/P Module Disable Switch (Heavy Duty), SDM

38

PCM IGN 1 Fuse

15A

Powertrain Control Module (PCM), Cruise Control Module (CCM) - w/o JL4 or Throttle Actuator Control (TAC) Module and Steering Wheel Speed/Position Sensor - JL4

39

O2 SNSR B Fuse

15A

HO2S Bank 1 Sensor 2 and Bank 2 Sensor 2

40

O2 SNSR A Fuse

15A

HO2S Bank 1 Sensor 1 and Bank 2 Sensor 1

41

WSW Fuse

15A

WSW Relay

42

RT-LO BEAM Fuse

10A

Headlamp Low Beam - Right (Composite) or Headlamp - Right (Sealed)

43

LT-LO BEAM Fuse

10A

Headlamp Low Beam - Left (Composite) or Headlamp - Left (Sealed)

44

LT-HI BEAM Fuse

10A

Headlamp High Beam - Left (Composite) or Headlamp - Left (Sealed)

45

RT-HI BEAM Fuse

10A

Headlamp High Beam - Right (Composite) or Headlamp - Right (Sealed)

46

TBC ACCY Fuse

10A

Body Control Module (BCM)

47

FRT WPR Fuse

25A

Windshield Wiper Motor

48

ABS/VSES Fuse

60A

Electronic Brake Control Module (EBCM)

49

IGN A Fuse

40A

STRTR Relay and Ignition Switch

50

TRLR Fuse

30A

Trailer Wiring Harness (UY7)

51

BLWR Fuse

40A

Blower Motor Resistor Assembly

52

IGN B Fuse

40A

Ignition Switch

53

WSW Relay

--

Windshield Wiper Motor

54

A/C Relay

--

A/C Compressor Clutch

55

SPARE Relay

--

Not Used

56

LAMP-HI BEAM Relay

--

RT-HI BEAM and LT-HI BEAM Fuses

57

FUEL PMP Relay

--

Fuel Pump

58

LAMP-LO BEAM Relay

--

RT-LO BEAM and LT-LO BEAM Fuses

59

HORN Relay

--

Horn Assembly

63

SPARE Fuse

--

Not Used

64

SPARE Fuse

--

Not Used

--

PWR SEAT Circuit Breaker

30A

Seat Adjuster Switch - Driver (AG1) and Seat Adjuster Switch - Passenger (AG2)

--

STRTR Relay

--

Starter

--

SPARE Relay

--

Not Used

--

125A Fuse

125A

Fuse Block - Body

Fuse Block - Underhood - Label Usage (Diesel)

No.

Device

Rating

Description

1

RDO BATT Fuse

15A

Radio (w/o UL5) or Chime Module (UL5)

2

FOH/ECM/TCM BATT Fuse

20A

Engine Control Module (ECM), Transmission Control Module (TCM), Coolant Heater (K08)

3

LT REAR STOP/TRN Fuse

10A

Trailer Stop/Turn Relay - Left (UY7) or C405 (Cutaway)

4

RT REAR STOP/TRN Fuse

10A

Trailer Stop/Turn Relay - Right (UY7) or C405 (Cutaway)

5

TRLR BCK/UP Fuse

10A

Trailer Wiring Harness (UY7) or C405 (Cutaway)

6

IGN 0 Fuse

10A

Engine Control Module (ECM), Body Control Module (BCM), Automatic Transmission, Glow Plug Control Module (GPCM)

7

STOP LAMP Fuse

15A

Stop Lamp Switch

8

REAR DEF/HTD MIR Fuse

20A

HVAC Control Assembly (C49/DE5/DE7)

9

RT DRL/TRN Fuse

10A

Park/Turn Signal Lamp - RF

10

LT DRL/TRN Fuse

10A

Park/Turn Signal Lamp - LF

11

TBC 4 Fuse

15A

Body Control Module (BCM)

12

FUEL PMP Fuse

15A

FUEL PMP Relay

13

TRLR Fuse

30A

Trailer Wiring Harness (UY7)

14

HAZRD Fuse

15A

Turn Signal/Hazard Flasher Module

15

HORN Fuse

15A

HORN Relay

16

TBC 3 Fuse

15A

Body Control Module (BCM)

17

TRLR STOP/TRN Fuse

15A

Trailer Stop/Turn Relay - Left and Trailer Stop/Turn Relay - Right (UY7)

18

TBC 2 Fuse

15A

Body Control Module (BCM)

19

TBC Fuse

10A

Body Control Module (BCM)

20

RFA Fuse

10A

Remote Control Door Lock Receiver (RCDLR)

21

SPARE Fuse

--

Not Used

22

IGN E Fuse

10A

Stop Lamp Switch and A/C Relay

23

ENG 1 Fuse

10A

MAF/IAT Sensor and PNP Switch

24

TBC IGN 1 Fuse

10A

Body Control Module (BCM)

25

FUEL HTR Fuse

20A

Fuel Heater

26

ISRVM Fuse

10A

Inside Rearview Mirror (DF5)

27

CRNK Fuse

10A

Engine Control Module (ECM)

28

BTSI Fuse

10A

Stop Lamp Switch

29

AUX PWR Fuse

20A

Auxiliary Power Outlet 2

30

LTR Fuse

15A

Cigar Lighter/Auxiliary Power Outlet 1 and Data Link Connector (DLC)

31

IPC Fuse

10A

Instrument Panel Cluster (IPC)

32

A/C Fuse

10A

A/C Relay

33

ECM Fuse

30A

ECM Relay

34

REAR FOG LMPS Fuse

10A

REAR FOG LMPS Relay (T79)

35

FAN CLTCH Fuse

10A

Cooling Fan Relay (LMM)

36

BTSI BCK/UP Fuse

15A

Park/Neutral Position (PNP) Switch

37

AIRBAG Fuse

10A

Inflatable Restraint I/P Module Disable Switch and SDM

38

ECM/TCM/GLOW PLUG CNTRL MDL IGN 1 Fuse

10A

Engine Control Module (ECM), Glow Plug Control Module (GPCM), Transmission Control Module (TCM)

39

SPARE Fuse

--

Not Used

40

SPARE Fuse

--

Not Used

41

WSW Fuse

15A

WSW Relay

42

RT-LO BEAM Fuse

10A

Headlamp Low Beam Right (Composite) or Headlamp - Right (Sealed)

43

LT-LO BEAM Fuse

10A

Headlamp Low Beam Left (Composite) or Headlamp - Left (Sealed)

44

LT-HI BEAM Fuse

10A

Headlamp High Beam Left (Composite) or Headlamp - Left (Sealed)

45

RT-HI BEAM Fuse

10A

Headlamp High Beam Right (Composite) or Headlamp - Right (Sealed)

46

TBC/TCM ACCY Fuse

10A

Body Control Module (BCM) and Transmission Control Module (TCM)

47

FRT WPR Fuse

25A

Windshield Wiper Motor

48

ABS/VSES Fuse

60A

Electronic Brake Control Module (EBCM)

49

IGN A Fuse

40A

STRTR Relay and Ignition Switch

50

TRLR Fuse

30A

Trailer Wiring Harness (UY7)

51

BLWR Fuse

40A

Blower Motor Resistor Assembly

52

IGN B Fuse

40A

Ignition Switch

53

WSW Relay

--

Windshield Wiper Motor

54

A/C Relay

--

A/C Compressor Clutch

55

REAR FOG LMPS Relay

--

Rear Fog Lamps (T79)

56

LAMP-HI BEAM Relay

--

RT-HI BEAM and LT-HI BEAM Fuses

57

FUEL PMP Relay

--

Fuel Prime Pump

58

LAMP-LO BEAM Relay

--

RT-LO BEAM and LT-LO BEAM Fuses

59

HORN Relay

--

Horn Assembly

63

ECM ACT Fuse

10A

Engine Control Module (ECM)

64

SPARE Fuse

--

Not Used

--

PWR SEAT Circuit Breaker

30A

Seat Adjuster Switch - Driver (AG1) and Seat Adjuster Switch - Passenger (AG2)

--

STRTR Relay

--

Starter

--

ECM Relay

--

ECM ACT Fuse and Engine Control Module (ECM)

--

125A Fuse

125A

Fuse Block - Body

Fuse Block - Underhood Top View


Object Number: 886737  Size: MF

Fuse Block - Underhood Bottom View


Object Number: 886739  Size: MF

Fuse Block - Underhood - C1


Object Number: 647955  Size: CH

Connector Part Information

  • OEM: 15319897
  • Service: 15319897
  • Description: 68-Way F Metri-Pack 280 Series Flexlock (L-GY)

Terminal Part Information

  • Pins: A1-A9, B2, B4, B10, C2, C4, D4, D10, D12, E10, F2-F4, F8, F12
  • Terminal/Tray: 12110844/4
  • Core/Insulation Crimp: Pins A1-A8, B10, D12, F2, F8 - E/C
  • Core/Insulation Crimp: Pins A9, B2, B4, C2, C4, D4, D10, E10, F3, F4, F12 - E/A
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: A10, D8, E1, E4, E8, F1
  • Terminal/Tray: 12110842/4
  • Core/Insulation Crimp: Pins A10, E1, E4, E8, F1 - See Terminal Repair Kit
  • Core/Insulation Crimp: Pins D8 - A/B
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: C1
  • Terminal/Tray: 15324340/19
  • Core/Insulation Crimp: F/G
  • Release Tool/Test Probe: 12094430/J-35616-4A (PU)
  • Pins: C3, C10, E2, E6, F6, F11
  • Terminal/Tray: 12110844/4
  • Core/Insulation Crimp: C/A
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Fuse Block - Underhood - C1

Pin

Wire Color

Circuit No.

Function

A1

--

--

Not Used

A2

YE/BK

625

Starter Enable Relay Control

A3-A7

--

--

Not Used

A8

PU

420

TCC Brake Switch/Cruise Control Release Signal

A9

L-GN

275

Park Neutral Position Switch Park Signal

A10

RD/WH

440

Battery Positive Voltage

RD/WH

440

Battery Positive Voltage

A11-A12

--

--

Not Used

B1

--

--

Not Used

B2

D-GN

1433

Neutral Safety Back Up Switch Signal

B3

--

--

Not Used

B4

PK

139

Ignition 1 Voltage (Gas)

PK

139

Ignition 1 Voltage (4.8L/5.3L/6.0L)

B5-B9

--

--

Not Used

B10

PU

806

Crank Voltage

B11-B12

--

--

Not Used

C1

PU

6

Starter Solenoid Crank Voltage

C2

BK

1250

Ground

C3

PK

339

Ignition 1 Voltage

C4

PK

139

Ignition 1 Voltage (Gas)

PK

139

Ignition 1 Voltage (Gas)

C5-C9

--

--

Not Used

C10

PK

239

Ignition 1 Voltage (Gas)

C11-C12

--

--

Not Used

D1-D3

--

--

Not Used

D4

PK

139

Ignition 1 Voltage

PK

139

Ignition 1 Voltage

D5

--

--

Not Used

D8

RD/WH

740

Ignition 1 Voltage (Diesel)

D9

--

--

Not Used

D10

PK

239

Ignition 1 Voltage (Gas)

PK

239

Ignition 1 Voltage (4.8L/5.3L/6.0L)

D11

--

--

Not Used

D12

D-GN/WH

459

A/C Compressor Clutch Relay Control (C60)

E1

PK

539

Ignition 1 Voltage (Gas)

PK

539

Ignition 1 Voltage (Gas)

E2

PK

439

Ignition 1 Voltage

PK

439

Ignition 1 Voltage (Diesel)

E3

--

--

Not Used

E4

PK

139

Ignition 1 Voltage (Gas)

PK

139

Ignition 1 Voltage (Gas)

E5

--

--

Not Used

E6

RD/WH

140

Battery Positive Voltage (Gas)

E7

--

--

Not Used

E8

RD/WH

740

Ignition 1 Voltage (Diesel)

RD/WH

740

Ignition 1 Voltage (Diesel)

E9

--

--

Not Used

E10

PK

239

Ignition 1 Voltage (Gas)

PK

239

Ignition 1 Voltage (Gas)

E11-E12

--

--

Not Used

F1

PK

1539

Ignition 1 Voltage (Gas)

PK

1539

Ignition 1 Voltage (Gas)

F2

PK

1020

Ignition 0 Voltage (Diesel)

F3

PK

1020

Ignition 0 Voltage (Gas)

PK

1020

Ignition 0 Voltage

F4

D-GN

1329

Horn Fuse Supply Voltage

F5

--

--

Not Used

F6

RD/WH

840

Ignition 1 Voltage (Diesel)

F7

--

--

Not Used

F8

D-GN/WH

465

Fuel Pump Relay Control

F9-F10

--

--

Not Used

F11

D-GN

1324

Backup Lamp Supply Voltage

F12

D-GN

59

A/C Compressor Clutch Supply Voltage (C60)

Fuse Block - Underhood - C2


Object Number: 647951  Size: CH

Connector Part Information

  • OEM: 15319896
  • Service: 15319896
  • Description: 68-Way F Metri-Pack 280 Series Flexlock (BK)

Terminal Part Information

  • Pins: A1, A4-A11, B1, B3, B6, B8, B11, C1, C3, C8, C12, D1, D3, D5, D11, E1, E2, E8-E12, F1, F4-F7, F10, F11
  • Terminal/Tray: 12110844/4
  • Core/Insulation Crimp: Pins A1, A7, A9, A11, B1, B3, B8, C3, C8, C12, D3, D5, E8-E10, E12, F1, F4-F7 - E/C
  • Core/Insulation Crimp: Pins A4, A6, A10, B6, B11, C1, D1, D11, E1, E2, E11, F10, F11 - C/A
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: A2, A3, B4, B5, B7, E3, E5
  • Terminal/Tray: 15324340/19
  • Core/Insulation Crimp: F/G
  • Release Tool/Test Probe: 12094430/J-35616-4A (PU)
  • Pins: C2, D3, D4, D8, D10, E4, E6, F2, F3, F9
  • Terminal/Tray: 12110844/4
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: C10
  • Terminal/Tray: 12110842/4
  • Core/Insulation Crimp: A/B
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Fuse Block - Underhood - C2

Pin

Wire Color

Circuit No.

Function

A1

L-GN/BK

584

A/T Shift Lock Control Switch Supply Voltage

A2

WH

1390

Accy/Run/Start Voltage

A3

YE

5

Crank Voltage

A4

RD/WH

4440

Battery Positive Voltage (C49/DE5/DE7)

A5

--

--

Not Used

A6

RD/WH

540

Battery Positive Voltage

A7

PK

1439

Ignition 1 Voltage (DF5)

A8

--

--

Not Used

A9

BN

441

Ignition 3 Voltage

A10

OG

4040

Battery Positive Voltage

A11

YE

343

Accessory Voltage

YE

343

Accessory Voltage (Diesel)

A12

--

--

Not Used

B1

PK/WH

1970

Headlamp Low Beam Relay Control

B2

--

--

Not Used

B3

RD/WH

1140

Battery Positive Voltage

B4

D-BU

47

Trailer Auxiliary Supply Voltage (UY7)

B5

RD/WH

3540

Battery Positive Voltage

B6

BN

2109

Trailer Park Lamps Supply Voltage (Cutaway/UY7)

B7

RD/WH

2940

Battery Positive Voltage (UY7)

B8

PK

39

Ignition 1 Voltage

B9-B10

--

--

Not Used

B11

WH

17

Stop Lamp Switch Signal (Cutaway)

B12

--

--

Not Used

C1

D-GN

5365

Right DRL/Turn Supply Voltage

C2

RD/WH

2240

Battery Positive Voltage

C3

TN

28

Horn Relay Control

TN

28

Horn Relay Control (AU0)

C4-C5

--

--

Not Used

C8

D-GN/WH

636

Ambient Air Temperature Sensor Signal (DF5)

C9

--

--

Not Used

C10

YE

143

Accessory Voltage

C11

--

--

Not Used

C12

PK

739

Ignition 1 Voltage

D1

RD/WH

2140

Battery Positive Voltage

D2

--

--

Not Used

D3

PK

439

Ignition 1 Voltage (4.3L w/K34)

PK

1339

Ignition 1 Voltage (Gas w/o 4.3L)

BN

341

Ignition 1 Voltage (JL4)

D4

PK

1139

Ignition 1 Voltage (Light Duty w/o YF7)

PK

1139

Ignition 1 Voltage

D5

TN/WH

1969

Headlamp High Beam Relay Control

D8

D-GN

19

Right Rear Stop/Turn Lamp Supply Voltage (Cutaway/UY7)

D9

--

--

Not Used

D10

RD/WH

340

Battery Positive Voltage

D11

D-BU/WH

149

Courtesy Lamp Supply Voltage (Cutaway)

D12

--

--

Not Used

E1

D-BU

5364

Left DRL/Turn Supply Voltage

E2

RD/WH

1040

Battery Positive Voltage

E3

PK

3

Ignition 1 Voltage

E4

PK

1139

Ignition 1 Voltage

E5

BN

4

Accessory Voltage

E6

OG

228

Windshield Washer Pump Control

E7

--

--

Not Used

E8

PU

420

TCC Brake Switch/Cruise Control Release Signal (K34 w/o JL4)

E9

PU

420

TCC Brake Switch/Cruise Control Release Signal

E10

RD/WH

2340

Battery Positive Voltage

E11

YE/BK

1334

Left Rear Turn Signal Lamp Supply Voltage (Cutaway)

E12

PK

739

Ignition 1 Voltage

PK

739

Ignition 1 Voltage

F1

RD/WH

1240

Battery Positive Voltage (AU0)

F2

RD/WH

640

Battery Positive Voltage

RD/WH

640

Battery Positive Voltage

F3

BN

2309

Front Park Lamps Supply Voltage

F4

PK

1020

Ignition 0 Voltage

F5

OG

2268

Windshield Washer Relay Control

F6

--

--

Not Used

F7

TN/WH

1704

Low Reference (DF5)

F8

--

--

Not Used

F9

YE

18

Left Rear Stop/Turn Lamp Supply Voltage (Cutaway/UY7)

F10

RD/WH

1540

Battery Positive Voltage

F11

D-GN/WH

1335

Right Rear Turn Signal Lamp Supply Voltage (Cutaway)

F12

--

--

Not Used

Fuse Block - Underhood - C3


Object Number: 647944  Size: CH

Connector Part Information

  • OEM: 15319892
  • Service: 15319892
  • Description: 32-Way F Metri-Pack 280 Series Flexlock (NA)

Terminal Part Information

  • Pins: A4, A6, C1, D2, E1, F1
  • Terminal/Tray: 12110844/4
  • Core/Insulation Crimp: Pins A4, A6, C1, D2, F1 - E/A
  • Core/Insulation Crimp: Pins E1 - E/C
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: A5, B1, B6, C5, C6, D1, E3, E5, F3
  • Terminal/Tray: 12110842/4
  • Core/Insulation Crimp: Pins A5 - A/B
  • Core/Insulation Crimp: Pins B1, B6, C5, C6, D1, E3, E5, F3 - C/A
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: B2, C2
  • Terminal/Tray: 15324340/19
  • Core/Insulation Crimp: Pins B2 - See Terminal Repair Kit
  • Core/Insulation Crimp: Pins C2 - F/G
  • Release Tool/Test Probe: 12094430/J-35616-4A (PU)

Fuse Block - Underhood - C3

Pin

Wire Color

Circuit No.

Function

A1-A3

--

--

Not Used

A4

PK

1020

Ignition 0 Voltage (Diesel)

A5

RD/WH

440

Battery Positive Voltage

A6

PK

439

Ignition 1 Voltage (Diesel)

B1

L-GN

1624

Trailer Backup Lamps Supply Voltage (Cutaway/UY7)

B2

OG

1340

Battery Positive Voltage (UY7)

OG

1340

Battery Positive Voltage (UY7)

B3-B5

--

--

Not Used

B6

D-GN/WH

1335

Right Rear Turn Signal Lamp Supply Voltage (Cutaway)

C1

D-GN

619

Right Rear Turn Signal Lamp Supply Voltage (Cutaway/UY7)

C2

D-BU

47

Trailer Auxiliary Supply Voltage (UY7)

C5

GY

120

Fuel Pump Supply Voltage (Gas)

L-GN

1058

Fuel Pump Supply Voltage (Diesel)

C6

YE/BK

1334

Left Rear Turn Signal Lamp Supply Voltage (Cutaway)

D1

BN

2109

Trailer Park Lamps Supply Voltage (Cutaway/UY7)

D2

YE

618

Left Rear Turn Signal Lamp Supply Voltage (Cutaway/UY7)

D5-D6

--

--

Not Used

E1

BN

441

Ignition 3 Voltage

E2

--

--

Not Used

E3

PK

1739

Ignition 1 Voltage (Diesel)

E4

--

--

Not Used

E5

D-BU/WH

149

Courtesy Lamp Supply Voltage (Cutaway)

E6

--

--

Not Used

F1

PU

420

TCC Brake Switch/Cruise Control Release Signal

F2

--

--

Not Used

F3

WH

17

Stop Lamp Switch Signal (Cutaway)

F4-F6

--

--

Not Used

Fuse Block - Underhood - C4


Object Number: 823321  Size: CH

Connector Part Information

  • OEM: 15326952
  • Service: 15306426
  • Description: 16-Way F 280 Series (BK)

Terminal Part Information

  • Terminal/Tray: 15304711/8
  • Core/Insulation Crimp: Pins A-E, J-M, S - E/A
  • Core/Insulation Crimp: Pins F, N-R - 2/A
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Fuse Block - Underhood - C4

Pin

Wire Color

Circuit No.

Function

A

TN/WH

1704

Low Reference (DF5)

B

D-GN/WH

636

Ambient Air Temperature Sensor Signal (DF5)

C-D

--

--

Not Used

E

YE

712

Left Headlamp Low Beam Supply Voltage

F

TN/WH

312

Right Headlamp Low Beam Supply Voltage

G-H

--

--

Not Used

J

BN

2309

Front Park Lamps Supply Voltage

K

BN

2309

Front Park Lamps Supply Voltage

L

BN

2309

Front Park Lamps Supply Voltage

M

BN

2309

Front Park Lamps Supply Voltage

N

L-BU

2114

Left Front Turn Signal Lamps Supply Voltage

P

D-BU

2115

Right Front Turn Signal Lamps Supply Voltage

R

L-GN/BK

311

Right Headlamp High Beam Supply Voltage

S

D-GN/WH

711

Left Headlamp High Beam Supply Voltage

Fuse Block - Underhood - C5


Object Number: 647937  Size: CH

Connector Part Information

  • OEM: 12193696
  • Service: 15306413
  • Description: 2-Way F MaxiFuse (BN)

Terminal Part Information

  • Terminal/Tray: 12110127/19
  • Core/Insulation Crimp: F/G
  • Release Tool/Test Probe: 12150860/J-35616-44 (YE)

Fuse Block - Underhood - C5

Pin

Wire Color

Circuit No.

Function

A

RD/BK

342

Battery Positive Voltage

B

RD/BK

142

Battery Positive Voltage

Fuse Block - Underhood - C6


Object Number: 647935  Size: CH

Connector Part Information

  • OEM: 12193694
  • Service: 15306412
  • Description: 2-Way F MaxiFuse (L-GY)

Terminal Part Information

  • Terminal/Tray: 12110127/19
  • Core/Insulation Crimp: F/G
  • Release Tool/Test Probe: 12150860/J-35616-44 (YE)

Fuse Block - Underhood - C6

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

RD/BK

542

Battery Positive Voltage

Fuse Block - Underhood - C7


Object Number: 647933  Size: CH

Connector Part Information

  • OEM: 12193693
  • Service: 15306393
  • Description: 2-Way F MaxiFuse (BK)

Terminal Part Information

  • Pins: A (JL4)
  • Terminal/Tray: 12110127/19
  • Core/Insulation Crimp: F/G
  • Release Tool/Test Probe: 12150860/J-35616-44 (YE)
  • Pins: A (w/o JL4)
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: F/G
  • Release Tool/Test Probe: See Terminal Repair Kit

Fuse Block - Underhood - C7

Pin

Wire Color

Circuit No.

Function

A

RD/BK

642

Battery Positive Voltage (w/o JL4)

RD

442

Battery Positive Voltage (JL4)

B

--

--

Not Used

Fuse Block - Body Label


Object Number: 1676597  Size: MF

Fuse Block - Body - Label Usage

No.

Device

Rating

Description

1

SPARE Fuse

--

Not Used

2

OSRVM Fuse

10A

Outside Rearview Mirror Switch (DE5/DE7)

3

CTSY LAMP/SEO Fuse

15A

CTSY LAMP Relay (YF7)

4

LT REAR STOP/TRN Fuse

10A

Tail/Stop and Turn Signal Lamp - Left

5

REAR DR LCKS Fuse

10A

CARGO UNLCK Relay(Passenger/Cargo w/AU3)

6

RT REAR STOP/TRN Fuse

10A

Tail/Stop and Turn Signal Lamp - Right

7

DR LCKS Fuse

10A

DRV UNLCK Relay (AU3)

8

STOP/CHMSL Fuse

10A

Center High Mounted Stop Lamp (CHMSL) - Passenger/Cargo, Cruise Control Module (CCM) - Gas w/K34, Throttle Actuator Control Module (TCM) - JL4, Transmission Control Module and Engine Control Module (ECM) - Diesel

9

HVAC 1 Fuse

10A

HVAC Control Assembly (C49/DE5/DE7), Air Temperature Actuator, HVAC Control Processor, Auxiliary Bower Motor Relays and Air/Mode Actuators (C69)

10

HVAC Fuse

20A

HVAC Control Assembly, Vacuum Pump - Diesel

11

BRK Fuse

10A

Electronic Brake Control Module (EBCM), High Idle Switch - UF3, Traction Control Switch - JL4

12

HTD MIR/DEFOG Fuse

30A

REAR DEFOG Relay (C49)

13

REAR BLWR Fuse

30A

Low/Med/High Speed Blower Motor Relays - Auxiliary (C36/C69) or C409 (ENC)

14

DRV PWR TRN MIR Fuse

10A

Outside Rearview Mirror - Driver (DE7) or C405 (Cutaway)

15

DR LCK Fuse

20A

DR LCKS Relay (AU3)

16

UPFTR PRK LAMPS Fuse

10A

C320 - Upfitter Wiring Harness (YF7)

17

--

--

Not Used

18

LT REAR PRK Fuse

10A

Tail/Stop and Turn Signal Lamp - Left and License Lamp

19

PASS TRN MIR Fuse

10A

Outside Rearview Mirror - Passenger (DE7) and C405 (Cutaway)

20

RT REAR PRK Fuse

10A

Tail/Stop and Turn Signal Lamp - Right

21

TRLR PRK Fuse

15A

Trailer Wiring Harness - (UY7) or C405 (Cutaway)

22

FRT PRK Fuse

10A

Inflatable Restraint I/P Module Disable Switch, Park/Turn signal Lamps - LF/RF and Marker Lamps - LF/RF

23

RAP Relay

--

PWR WNDW Circuit Breaker (A31)

24

AUX Relay

--

Upfitter Wiring Harness - C222 and C321 (YF7)

25

REAR DEFOG Relay

--

Rear Window Defogger Grid - Left/Right (C49)

26

CTSY LAMP Relay

--

C320, C405 w/Cutaway (YF7)

27

CARGO UNLCK Relay

--

Door Latch Assembly - Cargo (Passenger/Cargo w/AU3)

28

DRV UNLCK Relay

--

Door Latch Assembly - Driver (AU3)

29

PARK LAMP Relay

--

FRT PRK, LT REAR PRK, RT REAR PRK, TRLR PRK and UPFTR PRK LAMPS Fuses

30

DR/LCKS Relay

--

Door Latch Assembly - Driver/Passenger/Cargo and Door Lock Actuators - LR/RR (AU3)

31

PASS UNLCK Relay

--

Door Latch Assembly - Passenger and Door Lock Actuators - LR/RR (AU3)

32

AUX 1 Fuse

50A

Upfitter Wiring Harness - C222, C321 (YF7)

60A

EBCM (JL4)

33

AUX 2 Fuse

50A

AUX Relay (YF7)

20A

AUX Relay (SEO)

34

PWR WNDW Circuit Breaker

25A

Window Switch - Driver/Passenger (A31)

Fuse Block - Body Top View


Object Number: 886742  Size: MF

Fuse Block - Body Bottom View


Object Number: 886744  Size: MF

Fuse Block - Body - C1


Object Number: 647951  Size: CH

Connector Part Information

  • OEM: 15319896
  • Service: 15319896
  • Description: 68-Way F Metri-Pack 280 Series Flexlock (BK)

Terminal Part Information

  • Pins: A1-A11, B1-B7, B12, C1-C12, D4-D12, E4, E6, E12, F1, F2, F9, F10
  • Terminal/Tray: 12110844/4
  • Core/Insulation Crimp: Pins A1, A5, B1, B4, B12, C4, E6, F2 - C/A
  • Core/Insulation Crimp: Pins A4, A11, B7, C8, C12, D4-D12, E4, E12, F1, F9, F10 - E/C
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: A12, E8
  • Terminal/Tray: 15324340/19
  • Core/Insulation Crimp: F/G
  • Release Tool/Test Probe: 12094430/J-35616-4A (PU)
  • Pins: B8, D2, E1, F3
  • Terminal/Tray: 12110844/4
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: E2, F7
  • Terminal/Tray: 12110842/4
  • Core/Insulation Crimp: Pins E2 - See Terminal Repair Kit
  • Core/Insulation Crimp: Pins F7 - A/B
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Fuse Block - Body - C1

Pin

Wire Color

Circuit No.

Function

A1

BN

2109

Trailer Park Lamps Supply Voltage (Cutaway/UY7)

A2-A3

--

--

Not Used

A4

L-GN

1391

Driver Door Unlock Relay Control (AU3)

A5

D-BU/WH

149

Courtesy Lamp Supply Voltage (w/o YF7)

D-BU/WH

149

Courtesy Lamp Supply Voltage (Cutaway)

A6-A10

--

--

Not Used

A11

D-BU

245

Door Lock Relay Control (AU3)

A12

RD/WH

3540

Battery Positive Voltage

B1

D-GN

19

Right Rear Stop/Turn Lamp Supply Voltage (Passenger/Cargo)

D-GN

19

Right Rear Stop/Turn Lamp Supply Voltage (UY7)

B2-B3

--

--

Not Used

B4

WH

17

Stop Lamp Switch Signal (Passenger/Cargo)

WH

17

Stop Lamp Switch Signal (Except Cutaway w/Gas)

B5-B6

--

--

Not Used

B7

L-BU

1344

Cargo Door Unlock Relay Control (AU3)

B8

D-BU/WH

1315

Right Front Turn Signal Lamp Supply Voltage (DE7)

B9-B11

--

--

Not Used

B12

WH

193

Rear Defog Relay Control (C49/DE5/DE7)

C1-C3

--

--

Not Used

C4

BN

141

Ignition 3 Voltage

BN

141

Ignition 3 Voltage (Diesel)

C5

--

--

Not Used

C8

L-BU

244

Passenger Door Lock Unlock Relay Control (AU3)

C9-C11

--

--

Not Used

C12

WH

194

Door Unlock Control (AU3)

D1

--

--

Not Used

D2

L-BU

1320

CHMSL Supply Voltage (Passenger/Cargo w/UY7)

L-BU

1320

CHMSL Supply Voltage (Except 4.3L w/o K34)

D3

--

--

Not Used

D4

BN

441

Ignition 3 Voltage

BN

441

Ignition 3 Voltage (JL4)

BN

441

Ignition 3 Voltage (Diesel)

D5-D8

--

--

Not Used

D9

GY/BK

690

Courtesy Lamp High Control (YF7)

D10-D11

--

--

Not Used

D12

BN/WH

230

Instrument Panel Lamps Dimming Control

E1

BN

2309

Front Park Lamps Supply Voltage

Front Park Lamps Supply Voltage (Heavy Duty w/Gas) (Early Production Only)

E2

YE

18

Left Rear Stop/Turn Lamp Supply Voltage (Passenger/Cargo)

YE

18

Left Rear Stop/Turn Lamp Supply Voltage (UY7)

E3

--

--

Not Used

E4

WH

1080

Park Lamp Relay Control

E5

--

--

Not Used

E6

D-GN/WH

1335

Right Rear Turn Signal Lamp Supply Voltage (Cutaway)

E7

--

--

Not Used

E8

OG

300

Ignition 3 Voltage

E9-E11

--

--

Not Used

E12

L-BU

195

Door Lock Control (AU3)

F1

TN

755

RAP Relay Coil Control (A31)

F2

YE/BK

1334

Left Rear Turn Signal Lamp Supply Voltage (Cutaway)

F3

L-BU/WH

1314

Left Front Turn Signal Lamp Supply Voltage (DE7)

F4-F6

--

--

Not Used

F7

BK

350

Ground

F8

--

--

Not Used

F9

BN

341

Ignition 3 Voltage (C49/DE5/DE7)

F10

BN

341

Ignition 3 Voltage

F11-F12

--

--

Not Used

Fuse Block - Body - C2


Object Number: 647949  Size: CH

Connector Part Information

  • OEM: 15319894
  • Service: 15319894
  • Description: 68-Way F Metri-Pack 280 Series Flexlock (WH)

Terminal Part Information

  • Pins: A1, C8, D8, E11, E12, F11, F12
  • Terminal/Tray: 15324340/19
  • Core/Insulation Crimp: F/G
  • Release Tool/Test Probe: 12094430/J-35616-4A (PU)
  • Pins: A2-A4, A10, B1-B7, B10, C1-C5, D1, E7-E10, F1, F2,
  • Terminal/Tray: 12110844/4
  • Core/Insulation Crimp: Pins A2, A3, B2, C1, D1, E7, F1, F2 - E/A
  • Core/Insulation Crimp: Pins A4, A10, B5, B7, B10, C4, C5, E8, E10 - C/A
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: A8, D5
  • Terminal/Tray: 12110842/4
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: A11, A12, B8, B12, C9, C12, D2, D12, E2
  • Terminal/Tray: 12110844/4
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)

Fuse Block - Body - C2

Pin

Wire Color

Circuit No.

Function

A1

RD/WH

1740

Battery Positive Voltage (C36/C69/ENC)

A2

OG

4340

Battery Positive Voltage (DE5/DE7)

A3

D-GN/WH

1335

Right Mirror Turn Signal Lamp Supply Voltage (DE7)

A4

D-GN

619

Right Rear Turn Signal Lamp Supply Voltage (Passenger/Cargo)

A5-A7

--

--

Not Used

A8

WH

193

Rear Defog Relay Supply Voltage (DE5/DE7)

WH

193

Rear Defog Relay Supply Voltage (DE5/DE7)

A9

--

--

Not Used

A10

TN

294

Door Lock Actuator Unlock Control (AU3)

A11

BN/WH

230

Instrument Panel Lamps Dimming Control (AU3/A31)

BN/WH

230

Instrument Panel Lamps Dimming Control (AU3/A31)

A12

BN/WH

230

Instrument Panel Lamps Dimming Control (C36/ENC)

B1

--

--

Not Used

B2

YE/BK

1334

Left Mirror Turn Signal Lamp Supply Voltage (DE7)

B3-B4

--

--

Not Used

B5

TN/BK

1095

Right Rear Door Lock Actuator Unlock Control (AU3)

B6

--

--

Not Used

B7

GY

295

Door Lock Actuator Lock Control (AU3)

GY

295

Door Lock Actuator Lock Control (AU3)

B8

L-BU

195

Door Lock Control (AU3)

L-BU

195

Door Lock Control (AU3)

B9

--

--

Not Used

B10

TN

294

Door Lock Actuator Unlock Control (AU3 w/E26)

B11

--

--

Not Used

B12

BN/WH

230

Instrument Panel Lamps Dimming Control (C69)

C1

BN

2609

Right Rear Park Lamps Supply Voltage (Passenger/Cargo)

C2-C3

--

--

Not Used

C4

YE

618

Left Rear Turn Signal Lamp Supply Voltage (Passenger/Cargo)

C5

GY

295

Door Lock Actuator Lock Control (AU3 w/E26)

C8

PU

293

Rear Defog Element Supply Voltage (C49)

C9

L-BU

195

Door Lock Control (AU3)

C10-C11

--

--

Not Used

C12

WH

194

Door Unlock Control (AU3)

WH

194

Door Unlock Control (AU3)

D1

BN

2209

Rear Park Lamps Supply Voltage (YF7)

D2

BN

341

Ignition 3 Voltage (C69)

D3-D4

--

--

Not Used

D5

GY

295

Door Lock Actuator Lock Control (AU3)

GY

295

Door Lock Actuator Lock Control (AU3)

D8

PU

293

Rear Defog Element Supply Voltage (C49)

D9-D11

--

--

Not Used

D12

WH

194

Door Unlock Control (AU3)

E1

--

--

Not Used

E2

BN

341

Ignition 3 Voltage (C36/C69/ENC)

E3-E6

--

--

Not Used

E7

D-BU/WH

149

Courtesy Lamp Supply Voltage

D-BU/WH

149

Courtesy Lamp Supply Voltage (Cargo w/o YF7)

E8

TN

694

Driver Door Lock Actuator Unlock Control (AU3)

E9

--

--

Not Used

E10

TN

294

Door Lock Actuator Unlock Control (AU3)

E11

D-GN

1001

RAP Fuse Supply Voltage (A31)

E12

RD/WH

3540

Battery Positive Voltage (AG1/AG2)

F1

BN

2509

Left Rear Park Lamps Supply Voltage (Passenger/Cargo)

F2

L-BU

1320

CHMSL Supply Voltage (Passenger/Cargo)

F3-F10

--

--

Not Used

F11

D-GN

1001

RAP Fuse Supply Voltage (A31)

F12

RD/WH

3540

Battery Positive Voltage (AG1/AG2)

Fuse Block - Body - C4 (YF7/YF1)


Object Number: 647933  Size: CH

Connector Part Information

  • OEM: 12193693
  • Service: 15306393
  • Description: 2-Way F MaxiFuse (BK)

Terminal Part Information

  • Terminal/Tray: 12110127/19
  • Core/Insulation Crimp: F/G
  • Release Tool/Test Probe: 12150860/J-35616-44 (YE)

Fuse Block - Body - C4 (YF7/YF1)

Pin

Wire Color

Circuit No.

Function

A

BN

541

Ignition 3 Voltage

B

RD/BK

1042

Battery Positive Voltage (w/o PRP)

RD

1042

Battery Positive Voltage (PRP)

Fuse Block - Body - C5


Object Number: 647935  Size: CH

Connector Part Information

  • OEM: 12193694
  • Service: 15306412
  • Description: 2-Way F MaxiFuse (L-GY)

Terminal Part Information

  • Terminal/Tray: 12110127/19
  • Core/Insulation Crimp: F/G
  • Release Tool/Test Probe: 12150860/J-35616-44 (YE)

Fuse Block - Body - C5

Pin

Wire Color

Circuit No.

Function

A

RD

4042

Battery Positive Voltage (JL4)

RD/BK

1042

Battery Positive Voltage (YF7)

B

BN

541

Ignition 3 Voltage (YF7)

Fuse Block - Rear (PRP) - Top View


Object Number: 828373  Size: SF

Fuse Block - Rear (PRP) - Fuse Applications

No.

Device

Rating

Description

1

Access Panel Relay - Left Side Rear

--

Access Panel Latches - Left Side Rear

2

Dome Fluorescent Work Lamps Fuse

10

Dome Fluorescent Work Lamps (UF2)

3

Panel Actuator Fuse

15

Access Panel Relays

4

--

--

Not Used

5

Access Panel Relay - Left Side Front

--

Access Panel Latches - Left Side Front

6

Access Panel Relay - Right Side

--

Access Panel Latches - Right Side

Fuse Block - Rear (PRP) Bottom View


Object Number: 828377  Size: SF

Connector Part Information

  • OEM: 63995
  • Service: See Catalog
  • Description: 21-Way F Fuse Block (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Fuse Block - Rear (PRP) Wire Entry

Pin

Wire Color

Circuit No.

Function

1

OG

740

Battery Positive Voltage

2

TN

294

Access Panel Left Front Side Lock Actuators Unlock Control

3

L-BU

195

Access Panel Left Side Front Relay Control

4

--

--

Not Used

5

OG

740

Battery Positive Voltage

6

OG

740

Battery Positive Voltage

7

PK

1092

Access Panel Left Rear Side Lock Actuators Unlock Control

8

L-GN

1391

Access Panel Left Side Rear Relay Control

9

--

--

Not Used

10

OG

740

Battery Positive Voltage

11

OG

740

Battery Positive Voltage

12

TN/BK

1095

Access Panel Right Side Lock Actuators Unlock Control

13

L-BU

1344

Access Panel Right Side Relay Control

14

--

--

Not Used

15

OG

740

Battery Positive Voltage

16

RD

1042

Battery Positive Voltage (UF2)

17

OG

840

Battery Positive Voltage (UF2)

18

RD

1042

Battery Positive Voltage

19

OG

740

Battery Positive Voltage

20-21

--

--

Not Used