GM Service Manual Online
For 1990-2009 cars only
Connector 1: Body Control Module Label
Connector 2: Body Control Module - Top View
Connector 3: Body Control Module - Bottom View
Connector 4: Fuse Block - Underhood Label (MA5)
Connector 5: Fuse Block - Underhood Label (M82)
Connector 6: Fuse Block - Underhood Top View
Connector 7: Fuse Block - Underhood Bottom View
Connector 8: Fuse Block - Underhood C1
Connector 9: Fuse Block - Underhood C2
Connector 10: Fuse Block - Underhood C3
Connector 11: Fuse Block - Underhood C4

Body Control Module Label


Object Number: 1653527  Size: MF

Body Control Module - Label Usage

No.

Device

Rating

Description

1

FUSE PLR

--

N/A

2

SPARE

--

N/A

3

SPARE

--

N/A

4

SPARE

--

N/A

5

SPARE

--

N/A

6

AMP

20A

Audio Amplifier

7

CLSTR

10A

Instrument Panel Cluster

8

IGN SW/PK3+

10A

IGN Switch

9

STOP LP

10A

Not Used

10

HVAC/PK3+

10A

Theft Deterrent Module, HVAC Control Module

11

--

--

Not Used

12

SPARE

--

N/A

13

AIRBAG

10A

Inflatable Restraint Sensing and Diagnostic Module, Inflatable Restraint/Passenger Presence System

14

SPARE

--

N/A

15

WPR

10A

Windshield Wiper/Washer Switch

16

HVAC/IP IGN

10A

IPC, PNP/Clutch Start Switch Signal (MA5), HVAC Control Module

17

--

--

Not Used

18

--

--

Not Used

19

EPS/STR WHL CNTRL

2A

Inflatable Restraint Steering Wheel Module Coil

20

S ROOF

15A

Not Used

21

SPARE

--

N/A

22

--

--

Not Used

23

RDO

15A

Radio

24

SDM

10A

Inflatable Restraint Sensing and Diagnostic Module

25

ECM/TCM

10A

Engine Control Module

26

DR LCK

15A

Door Latch Driver, Door Latch Passenger

27

INT LIGHT

10A

Door Latch Driver, Door Latch Passenger

28

--

--

Not Used

29

PWR WNDW

30A

Power Window Switch - Driver, Window Switch - Passenger

30

HVAC

--

Blower Motor

31

--

--

Not Used

32

RAP

--

PWR WNDW

Printed Circuit Board (PCB) Relays

Not Serviceable

--

Door Lock PCB Relay

--

Door Latch Driver and Door Latch Passenger

--

Door Unlock PCB Relay

--

Door Latch Passenger

--

DR Door Unlock PCB Relay

--

Door Latch Driver

--

Inadvertent Load Control PCB Relay

--

Inside Rearview Mirror

Body Control Module - Top View


Object Number: 1653643  Size: MF

Body Control Module - Bottom View


Object Number: 1653645  Size: MF

Fuse Block - Underhood Label (MA5)


Object Number: 1653537  Size: MF

Fuse Block - Underhood Label (M82)


Object Number: 1738762  Size: LF

Fuse Block - Underhood Label Usage

No.

Device

Rating

Description

1

--

--

Not Used

2

REAR DEFOG Fuse

20A

Rear Window Defog Relay

3

--

--

Not Used

4

BCM 3 Fuse

30A

Body Control Module

5

CRNK Fuse

30A

Crank Relay

6

BCM 2 Fuse

40A

Body Control Module

7

BCM Fuse

50A

Body Control Module

8

COOL FAN 2 Fuse

30A

Cooling Fan 2 Relay

9

--

--

Not Used

10

TRUNK Fuse

25A

Trunk Release Relay

11

TRUNK Fuse

5A

Trunk Release Relay

12

--

--

Not Used

13

FUEL PUMP Fuse

15A

Fuel Pump Relay

14

REAR DEFOG Relay

--

Defogger Grid

15

A/C CLTCH Relay

--

ECM, A/C Compressor Clutch

16

--

--

Not Used

17

--

--

Not Used

18

TRUNK RELSE Relay

--

Trunk Lock Actuator, BCM

19

FUEL PUMP Relay

--

Fuel Pump and Sender Assembly

20

--

--

Not Used

21

MIR Fuse

5A

Power Mirror Switch

22

A/C Fuse

10A

A/C Clutch Relay

23

--

--

Not Used

24

COOL FAN 2 Relay

--

Engine Cooling Fan, ECM

25

FUSE PLR

--

Not Used

26

PWR/TRN

--

EMISSIONS, INJ MOD, ECM Fuses

27

--

--

Not Used

28

BCK/UP LAMP

--

Backup Lamps Switch (M82)

29

DLC Fuse

15A

Data Link Connector

30

OUTLET Fuse

20A

Aux Power Outlet

31

BCK/UP LAMP Fuse

10A

Backup Lamps Switch Fuse (M82)

32

--

--

Not Used

33

EMISSIONS Fuse

10A

Heated Oxygen Sensor 1, 2, MAF Sensor, CPP Switch, EVAP Canister Purge Solenoid

34

CRNK Relay

--

Starter, ECM

35

--

--

Not Used

36

--

--

Not Used

37

--

--

Not Used

38

--

--

Not Used

39

--

--

Not Used

40

COOL FAN 1 Fuse

30A

Cool Fan Relay

41

--

--

Not Used

42

ECM Fuse

15A

Engine Control Module

43

ECM/TRANS Fuse

15A

ECM, TCM

44

ABS Fuse

30A

Electronic Brake Control Module

45

INJ IGN MDL Fuse

10A

Fuel Injectors, Ignition Coils

46

BCK/UP Fuse

10A

Backup Lamps Switch (MA5)

47

--

--

Not Used

48

--

--

Not Used

49

--

--

Not Used

50

COOL FAN 1 Relay

--

Engine Cooling Fan, ECM

51

RUN/CRNK Relay

--

Starter

52

WPR Relay

--

Wiper Motor

53

FOG LAMP Fuse

15A

Headlamps/Turn Signal/Park Lamps

54

FOG LAMP Relay

--

Headlamps/Turn Signal/Park Lamps

55

HORN Relay

--

Horn Switch

56

S BAND ONSTAR Fuse

10A

Vehicle Communication Interface Module

57

ABS Fuse

10A

Electronic Brake Control Module

58

DIODE WPR

--

Wiper Relay

59

WPR Fuse

25A

Wiper Relay

60

HORN Fuse

10A

Horn Switch

61

ABS Fuse

20A

Electronic Brake Control Module

62

I/P IGN Fuse

20A

Body Control Module

63

LT HI BEAM Fuse

10A

Headlamps/Turn Signal/Park Lamps

64

CAN VENT Fuse

10A

EVAP Canister Valve Solenoid

65

LT LO BEAM Fuse

10A

Headlamps/Turn Signal/Park Lamps

66

RT LO BEAM Fuse

10A

Headlamps/Turn Signal/Park Lamps

67

RT HI BEAM Fuse

10A

Headlamps/Turn Signal/Park Lamps

68

PRK LAMPS Relay

--

Headlamps/Turn Signal/Park Lamps

69

PRK LAMPS Fuse

15A

Headlamps/Turn Signal/Park Lamps

70

WPR Relay

--

Windshield Wiper Motor Assembly

71

LO BEAM Relay

--

Headlamps/Turn Signal/Park Lamps

72

HI BEAM Relay

--

Headlamps/Turn Signal/Park Lamps

Fuse Block - Underhood Top View


Object Number: 1631728  Size: MF

Fuse Block - Underhood Bottom View


Object Number: 1653444  Size: MF

Fuse Block - Underhood C1


Object Number: 1590995  Size: CH

Connector Part Information

  • OEM: R61927-002
  • Service: 88988759
  • Description: 64-Way F (GY)

Terminal Part Information

  • Pins: E7
  • Terminal/Tray: 7116-4112-02/9
  • Core/Insulation Crimp: C/D
  • Release Tool/Test Probe: 12094430/J-35616-35 (VT)
  • Pins: A1, A9, A12, C9, D3, D9, D12, E6, E9, F1, F9, F10, F12
  • Terminal/Tray: 7116-4110-02/9
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12094430/J-35616-4A (PU)
  • Pins: A10, A11, B10, B11, C4, C12
  • Terminal/Tray: 7116-4111-02/9
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 12094430/J-35616-4A (PU)

Fuse Block - Underhood C1

Pin

Wire Color

Circuit No.

Function

A1

D-GN

335

Low Speed Cooling Fan Relay Control

A2-A8

--

--

Not Used

A9

L-BU

20

Stop Lamp Supply Voltage

A10

PK

539

Ignition 1 Voltage (MA5)

A11

PK/BK

5292

Ignition 1 Voltage

A12

BN

4

Accessory Voltage (M82)

B1-B4

--

--

Not Used

B5

--

--

Not Available

B6-B7

--

--

Not Used

B8

--

--

Not Available

B9

--

--

Not Used

B10

PK/BK

5290

Ignition 1 Voltage

B11

PK

1039

Ignition 1 Voltage (M82)

B12

--

--

Not Used

C1-C3

--

--

Not Used

C4

L-GN

24

Backup Lamp Supply Voltage (MA5)

C5

--

--

Not Used

C6-C7

--

--

Not Available

C8

--

--

Not Used

C9

D-GN

1433

PNP/Clutch Start Switch Signal (MA5)

C10-C11

--

--

Not Used

C12

PK

1039

Ignition 1 Voltage

D1-D2

--

--

Not Used

D3

BK

250

Ground (C60)

D4-D5

--

--

Not Used

D6-D7

--

--

Not Available

D8

--

--

Not Used

D9

PK/BK

5291

Ignition 1 Voltage

D10-D11

--

--

Not Used

D12

D-GN/WH

459

A/C Compressor Clutch Relay Control (C60)

E1-E4

--

--

Not Used

E5

--

--

Not Available

E6

YE

447

Starter Relay Coil Control

E7

PU

6

Starter Solenoid Crank Voltage

E8

--

--

Not Available

E9

PK/BK

5291

Ignition 1 Voltage

E10-E12

--

--

Not Used

F1

D-BU

473

High Speed Cooling Fan Relay Control

F2-F8

--

--

Not Used

F9

PK/BK

5291

Ignition 1 Voltage

F10

D-GN

59

A/C Compressor Clutch Supply Voltage (C60)

F11

--

--

Not Used

F12

BN

5069

Main Relay Control

Fuse Block - Underhood C2


Object Number: 1592566  Size: CH

Connector Part Information

  • OEM: R61927-001
  • Service: 88988756
  • Description: 64-Way F (BK)

Terminal Part Information

  • Pins: B6, B9
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit
  • Pins: F6
  • Terminal/Tray: 7116-4112-02/9
  • Core/Insulation Crimp: C/D
  • Release Tool/Test Probe: 12094430/J-35616-35 (VT)
  • Pins: A1, B1, B3, B9, B10, B12, C1, D3, E1, E3, F1, F2
  • Terminal/Tray: 7116-4110-02/9
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12094430/J-35616-4A (PU)
  • Pins: A5, F5
  • Terminal/Tray: 7116-4122-02/10
  • Core/Insulation Crimp: Pins A5 - D/G
  • Core/Insulation Crimp: Pins F5 - A/B
  • Release Tool/Test Probe: 12094430/J-35616-42 (RD)
  • Pins: A9, E2, E12, F9, C2, E6, F3, F3
  • Terminal/Tray: 7116-4111-02/9
  • Core/Insulation Crimp: Pins A9, E2, E12, F9 - C/A
  • Core/Insulation Crimp: Pins C2, E6, F3, F3 - E/A
  • Release Tool/Test Probe: 12094430/J-35616-4A (PU)

Fuse Block - Underhood C2

Pin

Wire Color

Circuit No.

Function

A1

D-BU

15

Right Turn Signal Lamps Supply Voltage

A2-A4

--

--

Not Used

A5

RD/BK

142

Battery Positive Voltage

A6-A8

--

--

Not Used

A9

RD/WH

240

Battery Positive Voltage

A10-A12

--

--

Not Used

B1

TN

28

Horn Relay Control

B2

--

--

Not Used

B3

RD/WH

40

Battery Positive Voltage

B4

--

--

Not Used

B5

--

--

Not Available

B6

D-BU

38

Backup Lamp Relay Control (M82)

B7

--

--

Not Used

B8

--

--

Not Available

B9

PK

339

Ignition 1 Voltage (M82)

YE

575

Starter Control (MA5)

B10

PK/BK

5291

Ignition 1 Voltage

B11

--

--

Not Used

B12

WH

193

Rear Defog Relay Control

C1

YE

317

Fog Lamp Relay Control

C2

L-GN

24

Backup Lamp Supply Voltage (M82)

C3-C5

--

--

Not Used

C6-C7

--

--

Not Available

C8-C12

--

--

Not Used

D1-D2

--

--

Not Used

D3

RD/WH

440

Battery Positive Voltage

D4-D5

--

--

Not Used

D6-D7

--

--

Not Available

D8-D12

--

--

Not Used

E1

TN/WH

1969

Headlamp High Beam Relay Control

E2

GY

120

Fuel Pump Supply Voltage

E3

BN

253

Trunk Release Relay Control

E4

--

--

Not Used

E5

--

--

Not Available

E6

L-GN

24

Backup Lamp Supply Voltage (MA5)

E7

--

--

Not Used

E8

--

--

Not Available

E9-E11

--

--

Not Used

E12

PU

293

Rear Defog Element Supply Voltage

F1

PK/WH

1970

Headlamp Low Beam Relay Control

F2

D-GN/WH

465

Fuel Pump Relay Control

F3

TN/WH

56

Trunk Release Motor Supply Voltage

F4

--

--

Not Used

F5

RD/BK

242

Battery Positive Voltage

F6

RD/BK

442

Battery Positive Voltage

F7-F8

--

--

Not Used

F9

BK

250

Ground

F10-F12

--

--

Not Used

Fuse Block - Underhood C3


Object Number: 1744270  Size: CH

Connector Part Information

  • OEM: R61922-002
  • Service: 88988760
  • Description: 28-Way F (GY)

Terminal Part Information

  • Pins: A5, E1
  • Terminal/Tray: 7116-4112-02/9
  • Core/Insulation Crimp: C/D
  • Release Tool/Test Probe: 12094430/J-35616-35 (VT)
  • Pins: A6, B1, B2, B5, C1, D6, E5, F1, F6
  • Terminal/Tray: 7116-4110-02/9
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12094430/J-35616-4A (PU)
  • Pins: A3, F4
  • Terminal/Tray: 7116-4122-02/10
  • Core/Insulation Crimp: Pins A3 - D/G
  • Core/Insulation Crimp: Pins F4 - A/B
  • Release Tool/Test Probe: 12094430/J-35616-42 (RD)
  • Pins: C5, E2
  • Terminal/Tray: 7116-4111-02/9
  • Core/Insulation Crimp: Pins C5 - C/A
  • Core/Insulation Crimp: Pins E2 - E/A
  • Release Tool/Test Probe: 12094430/J-35616-4A (PU)

Fuse Block - Underhood C3

Pin

Wire Color

Circuit No.

Function

A1-A2

--

--

Not Used

A3

RD/BK

542

Battery Positive Voltage (JL9)

A4

--

--

Not Used

A5

RD/WH

540

Battery Positive Voltage (JL9)

A6

BN

9

Park Lamp Supply Voltage

B1

L-GN/BK

311

Right Headlamp High Beam Supply Voltage

B2

TN/WH

312

Right Headlamp Low Beam Supply Voltage

B3-B4

--

--

Not Available

B5

YE

712

Left Headlamp Low Beam Supply Voltage

B6

--

--

Not Used

C1

D-GN/WH

711

Left Headlamp High Beam Supply Voltage

C2

--

--

Not Used

C3-C4

--

--

Not Available

C5

BK

250

Ground

C6

--

--

Not Used

D1-D2

--

--

Not Used

D3-D4

--

--

Not Available

D5

--

--

Not Used

D6

PK

1439

Ignition 1 Voltage (JL9)

E1

L-BU

409

Cooling Fan Motor Supply Voltage

E2

D-GN

29

Horn Control

E3-E4

--

--

Not Available

E5

PU

2234

Front Fog Lamp Supply Voltage (T96)

E6

--

--

Not Used

F1

D-BU

15

Right Turn Signal Lamps Supply Voltage

F2-F3

--

--

Not Used

F4

GY

532

Cooling Fan Motor Supply Voltage

F5

--

--

Not Used

F6

L-BU

14

Left Turn Signal Lamps Supply Voltage

Fuse Block - Underhood C4


Object Number: 1744265  Size: CH

Connector Part Information

  • OEM: R61922-001
  • Service: 88988757
  • Description: 28-Way F (BK)

Terminal Part Information

  • Pins: C2
  • Terminal/Tray: 7116-4112-02/9
  • Core/Insulation Crimp: C/D
  • Release Tool/Test Probe: 12094430/J-35616-35 (VT)
  • Pins: F5
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit
  • Pins: D1, E1
  • Terminal/Tray: 7116-4111-02/9
  • Core/Insulation Crimp: C/A
  • Release Tool/Test Probe: 12094430/J-35616-4A (PU)
  • Pins: A6, B2, B5, C1, C5, D6, D6, D6, E6, F2
  • Terminal/Tray: 7116-4110-02/9
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12094430/J-35616-4A (PU)
  • Pins: A1, F3
  • Terminal/Tray: 7116-4120-02/9
  • Core/Insulation Crimp: E/A
  • Release Tool/Test Probe: 12094430/J-35616-42 (RD)

Fuse Block - Underhood C4

Pin

Wire Color

Circuit No.

Function

A1

BN

9

Park Lamp Supply Voltage

A2-A5

--

--

Not Used

A6

L-BU

20

Stop Lamp Supply Voltage

B1

--

--

Not Used

B2

D-GN

113

Windshield Wiper Relay Control

B3-B4

--

--

Not Available

B5

WH

1080

Park Lamp Relay Control

B6

--

--

Not Used

C1

L-GN

1715

Windshield Wiper Switch High Signal

C2

PK

739

Ignition 1 Voltage

C3-C4

--

--

Not Available

C5

RD/WH

140

Battery Positive Voltage

C6

--

--

Not Used

D1

D-GN

95

Windshield Washer Switch Signal

D2

--

--

Not Used

D3-D4

--

--

Not Available

D5

--

--

Not Used

D6

RD/WH

1340

Battery Positive Voltage (U2K w/UE1)

RD/WH

1340

Battery Positive Voltage (UE1 w/o U2K)

RD/WH

1340

Battery Positive Voltage (U2K w/o UE1)

E1

PU

92

Windshield Wiper Motor High Speed Control

E2

--

--

Not Used

E3-E4

--

--

Not Available

E5

--

--

Not Used

E6

RD/WH

1340

Battery Positive Voltage (A31)

F1

--

--

Not Used

F2

YE

5199

Run/Crank Relay Coil Control

F3

L-BU

14

Left Turn Signal Lamp Supply Voltage

F4

--

--

Not Used

F5

BN

4

Accessory Voltage (M82)

F6

--

--

Not Used