GM Service Manual Online
For 1990-2009 cars only

Fuse Block - I/P (Rear View)


Object Number: 559040  Size: MF

Pin

Wire Color

Circuit No.

Function

A2

DK BLU

75

RAP Relay Switch Supply Voltage

A3

YEL

343

Accessory Voltage

A6

RED

142

Battery Positive Voltage

A7

ORN

540

Battery Positive Voltage

B2-B4

--

--

Not Used

B6

RED

142

Battery Positive Voltage

B8

--

--

Not Used

C1

ORN

1140

Battery Positive Voltage

C1

ORN

1140

Battery Positive Voltage

C3

ORN

640

Battery Positive Voltage

C5

ORN

840

Battery Positive Voltage

C7

ORN

140

Battery Positive Voltage

C7

ORN

140

Battery Positive Voltage

D2

WHT

1390

Off, Run, Crank Voltage

D4

DK GRN

44

Instrument Panel Lamps Dimmer Switch Signal

D6

YEL

5

Crank Voltage

D8

DK BLU

75

RAP Relay Switch Supply Voltage

E1

PNK

1020

Off, Run, Crank Voltage

E1

PNK

1020

Off, Run, Crank Voltage

E3

GRY

8

Instrument Panel Lamp Supply Voltage - 1

E5

PPL

806

Crank Voltage

E7

YEL

43

Accessory Voltage

F2-F4

--

--

Not Used

F6

RED

42

Battery Positive Voltage

F8

--

--

Not Used

G1

ORN

1740

Battery Positive Voltage

G3

ORN

1840

Battery Positive Voltage

G5

ORN

240

Battery Positive Voltage

G7

ORN

40

Battery Positive Voltage

H2-H4

--

--

Not Used

H6

PNK

3

Ignition 1 Voltage

H8-J1

--

--

Not Used

J3

PNK

139

Ignition 1 Voltage

J3

PNK

139

Ignition 1 Voltage

J5

YEL

1139

Ignition 1 Voltage

J7

PNK

39

Ignition 1 Voltage

K2

--

--

Not Used

K4

BRN

4

Accessory Voltage

K6

--

--

Not Used

K8

PPL

293

Rear Defogger Element Supply Voltage

L1

WHT

393

Rear Window Wiper Motor Control

L3

YEL

143

Accessory Voltage

L5

--

--

Not Used

L7

PPL

1093

Rear Defog Element Supply Voltage

M2-M4

--

--

Not Used

M6

ORN

300

Ignition 3 Voltage

M8-N1

--

--

Not Used

N3

BRN

441

Ignition 3 Voltage

N3

BRN

441

Ignition 3 Voltage

N5

BRN

141

Ignition 3 Voltage

N7

BRN

41

Ignition 3 Voltage

Fuse Block I/P (Front View)


Object Number: 816190  Size: MF

Fuse Number

Name

Rating

Description

1

STOP/HAZ

20A

Stop Lamp Switch, Turn Signal Switch

2

RDO ACCY

10A

Radio, Driver Information Center (DIC), Rear Seat Audio (RSA) Controller

3

CTSY

20A

Inadvertant Power Relay

4

GAUGES

10A

Instrument Panel Cluster (IPC), DRL Relay, Body Control Module (BCM)

5

RR DEFOG

30A

Rear window Defogger Grid

6

CRUISE

10A

Cruise Control Module (CCM), Cruise Control On/Off Switch, Instrument Panel Cluster (IPC), Body Control Module (BCM)

7

AUX PWR

25A

Auxiliary Power Outlets, Audio Amplifier, Data Link Connector (DLC)

8

CRANK

10A

Park/Neutral Position (PNP) Switch

9

PK LPS

20A

Headlamp and Panel Dimmer Switch, Park Lamp Relay

10

AIR BAG

10A

Inflatable Restraint Sensing and Diagnostic Module (SDM)

11

Not Used

12

HTR-A/C

20A

HVAC Control Assembly, A/C Relay, Air Temperature Actuator

13

CIG LTR

20A

Lift Glass Lock/Unlock Release Switch, Door Lock Switch - Driver and Front Passenger, Cigar Lighter

14

ILLUM

10A

HVAC Control Assembly, RR HVAC Controls, Radio, Instrument Panel Cluster (IPC), Rear Window Wiper/Washer Switch, Body Control Module (BCM), Driver Information Center (DIC)

15

TBC

10A

Body Control Module (BCM), Outside Rearview Mirror Switch, Headlamp and Panel Dimmer Switch, Headlamp Dimmer Switch, Remote Control Door Lock Receiver (RCDLR)

16

TURN-B/U

20A

Turn Signal Switch, Park/Neutral Position (PNP) Switch

17

WIPER

25A

Upfitter ACCY Relay, Windshield Wiper Motor and Module, Windshield Wiper/Washer Switch Front

18

BRAKE

10A

Stop Lamp Switch, Electronic Brake Control Module (EBCM), Transfer Case Shift Control Module

19

RADIO BATT

10A

Radio, Instrument Panel Cluster (IPC)

20

TRANS

10A

Instrument Panel Cluster (IPC), Automatic Transmission, Powertrain Control Module (PCM)

21

PWR ADJ MIR

5A

Outside Rearview Mirror Switch

22

Not Used

23

RR WIPER

20A

Rear Window Wiper/Washer Switch

24

--

--

Not Used

A

PWR ACCY

25A C/B

Seat Adjuster Switch - Driver, Door Lock Relay, Rear Door Unlock Relay, Driver Door Unlock Relay

B

WINDOWS

25A C/B

Window Master Switch - Driver, Window Switch - Front Passenger

Relay Block No. 1


Object Number: 783037  Size: MF

Connector Part Information

    • 40024201
    • 20-Way Cassette Type (BLK)

Pin

Wire Color

Circuit No.

Function

1

LT BLU

1344

Trunk Release Relay Control

2

ORN

540

Battery Positive Voltage

3

TAN

294

Door Lock Actuator Unlock Control

4

TAN

246

Rear Door Lock Actuator Unlock Control

5

ORN

540

Battery Positive Voltage

6

LT GRN

1391

Left Front Door Lock Relay Control

7

ORN

540

Battery Positive Voltage

8

BLK

1050

Ground

9

TAN

694

Driver Door Lock Actuator Unlock Control

10

ORN

540

Battery Positive Voltage

11

GRY/BLK

690

Courtesy Lamp Relay Control

12

WHT

156

Courtesy Lamp Switch Signal

13

--

--

Not Used

14

BLK

750

Ground

15

ORN

1732

Courtesy Lamp Supply Voltage

16

DK BLU

1393

Courtesy Lamp Relay Control

17

ORN

40

Battery Positive Voltage

18

--

--

Not Used

19

ORN

1732

Courtesy Lamp Supply Voltage

20

ORN

40

Battery Positive Voltage

Relay Block No. 2


Object Number: 783039  Size: MF

Connector Part Information

    • 40024202
    • 10-Way Cassette Type (BLK)

Pin

Wire Color

Circuit No.

Function

1

BLK

755

RAP Relay Coil Control

2

RED

742

Battery Positive Voltage

3

BRN

4

Accessory Voltage

4

DK BLU

75

RAP Relay Switch Supply Voltage

5

RED

742

Battery Positive Voltage

6

PNK

39

Ignition 1 Voltage

7

BLK

750

Ground

8

PPL

544

Headlamp Low Beam Supply Voltage

9

WHT

815

DRL Diode Signal

10

LT GRN/BLK

592

DRL Relay Control

Fuse Block - Underhood (Front View)


Object Number: 791131  Size: LF

Name

Rating

Description

DIODE - I

1A

A/C Clutch

RH HDLMP

15A

Headlamp - RH - Sealed, Headlamp High Beam - Right - Composite, Headlamp Low Beam - Right - Composite

LH HDLMP

15A

Headlamp - LH - Sealed, Headlamp High Beam - Left - Composite, Headlamp Low Beam - Left - Composite

ENG-I

20A

Oxygen Sensors, Mass Air Flow (MAF) Sensor, Evaporative Emission (EVAP) Canister Purge Solenoid, Evaporative Emission (EVAP) Canister Vent Solenoid

IGN-E

10A

A/C Enable Relay

ECM-I

20A

Fuel Injectors, Powertrain Control Module (PCM), Ignition Control Module (ICM), Ignition Coil

RR - HTR/A/C

30A

A/C Relay

ATC

20A

Transfer Case Shift Control Module

FRT HVAC

30A

Blower Motor Resistor Assembly

ECM-B

20A

Fuel Pump (FP) Relay, Powertrain Control Module (PCM)

HORN

20A

Horn Relay

A/C COMP

10A

A/C Enable Relay

HTD MIR/RR DEFOG

40A

HVAC Control Assembly

RAP

40A

RAP Relay

ABS

60A

Electronic Brake Control Module (EBCM)

IGN B

40A

Ignition Switch

IGN A

40A

Ignition Switch, Starter Enable Relay

BATT

50A

Fuse Block - I/P

LIGHTING

40A

Headlamps Relay, Fuse Block - I/P

UPFITTER-ACCY

30A

Upfitter Accy Relay

UPFITTER-BATT

30A

Portable/Installed by Upfitter, Trailer Wiring Harness

Headlamps Relay

Micro

Headlamp Supply Voltage

Starter Enable Relay

Mini

Starter Solenoid Crank Voltage

A/C Relay

Mini

Auxiliary HVAC Switch Supply Voltage

Fuel Pump Relay

Micro

Fuel Pump and Sender Assembly Supply Voltage

A/C Enable Relay

Micro

A/C Compressor Clutch Supply Voltage

Upfitter - ACCY Relay

Mini

Ignition 1 Voltage

Fuse Block - Underhood (Rear View)


Object Number: 559033  Size: MF

Cavity

Color

Circuit

Description

AUX A

RED

1842

Battery Positive Voltage

AUX B

RED

1742

Battery Positive Voltage

A1

WHT

352

Headlamp Relay Coil Supply Voltage

A3

RED

42

Battery Positive Voltage

A4

BLK

850

Ground

A6

RED

242

Battery Positive Voltage

A7

BRN

141

Ignition 3 Voltage

A9

ORN

1040

Battery Positive Voltage

B1

LT BLU

1346

Headlamp Supply Voltage

B2

--

--

Not Used

B3

BLK

250

Ground

B4

PPL

6

Starter Solenoid Crank Voltage

B5

--

--

Not Used

B6

YEL

1737

Neutral Safety Switch Park/Neutral Signal

B7

ORN

1923

Auxiliary HVAC Switch Supply Voltage

B8

--

--

Not Used

B9

BLK

850

Ground

C1

DK GRN/

WHT

465

Fuel Pump Relay Control

C3

GRY

120

Fuel Pump Supply Voltage

C4

DK GRN/

WHT

459

A/C Compressor Clutch Relay Control

C6

ORN

1240

Battery Positive Voltage

D1

ORN

440

Battery Positive Voltage

D2

--

--

Not Used

D3

BLK

850

Ground

D4

DK GRN

59

A/C Compressor Clutch Supply Voltage

D5

--

--

Not Used

D6

PNK

639

Ignition 1 Voltage

D7

YEL

143

Accessory Voltage

D9

RED

1842

Battery Positive Voltage

E7

PNK

1839

Ignition 1 Voltage

E8

--

--

Not Used

E9

BLK

850

Ground

F1-G6

--

--

Not Used

G8

PNK

539

Ignition 1 Voltage

G10

ORN

1040

Battery Positive Voltage

G12

ORN

440

Battery Positive Voltage

H1-H3

--

--

Not Used

H5

LT BLU

1346

Headlamp Supply Voltage

H7

PNK

3

Ignition 1 Voltage

H9

RED

1

Battery Positive Voltage

H11

RED

1

Battery Positive Voltage

J2-J4

--

--

Not Used

J6

TAN/WHT

312

Right Headlamp Supply Voltage

J8

PNK

639

Ignition 1 Voltage

J10

ORN

1540

Battery Positive Voltage

J12

ORN

740

Battery Positive Voltage

K1

--

--

Not Used

K3

DK GRN

59

A/C Compressor Clutch Supply Voltage

DK GRN

59

A/C Compressor Clutch Supply Voltage

K5-L2

--

--

Not Used

L4

BLK

850

Ground

L6

YEL

712

Left Headlamp Low Beam Supply Voltage

L8

PNK

439

Ignition 1 Voltage

L10

ORN

340

Battery Positive Voltage

L12

ORN

1240

Battery Positive Voltage

M1

RED

1442

Battery Positive Voltage

M2

RED

742

Battery Positive Voltage

M3

--

--

Not Used

M4

RED

442

Battery Positive Voltage

M5

RED

342

Battery Positive Voltage

M6

RED

242

Battery Positive Voltage

M7

RED

142

Battery Positive Voltage

M8

RED

42

Battery Positive Voltage

Convenience Center (Rear View)


Object Number: 299498  Size: MF

Connector Part Information

    • 12146452
    • Convenience Center

Pin

Wire Color

Circuit No.

Function

A

RED

1742

Battery Positive Voltage

B

PNK

1839

Ignition 1 Voltage

C1

GRY

8

Instrument Panel Lamp Supply Voltage - 1

C2

BLK

750

Ground

C3

ORN

1923

Auxiliary HVAC Switch Supply Voltage

C4

GRY/BLK

1596

Heater Water Control Solenoid Control

C6

RED

1742

Battery Positive Voltage

C7

ORN

540

Battery Positive Voltage

C8

BLK

750

Ground

C9

RED

1742

Battery Positive Voltage

D1

GRY

8

Instrument Panel Lamp Supply Voltage - 1

D2

PPL/WHT

1382

LED Dimming Signal

D3

ORN

140

Battery Positive Voltage

D4

BLK

1050

Ground

D5

LT GRN/BLK

735

Ambient Air Temperature Sensor Signal

D6

DK GRN/

WHT

817

Vehicle Speed Signal

D7

ORN

1732

Courtesy Lamps Supply Voltage

D8

BLK

750

Ground

D9

ORN

640

Battery Positive Voltage

E1

BRN

441

Ignition 3 Voltage

E2

--

--

Not Used

E3

DK GRN/

WHT

1133

Class 2 Serial Data (ATC)

E4

BLK

750

Ground

E5

ORN

1540

Battery Positive Voltage

E6

--

--

Not Used

F1

GRY

8

Instrument Panel Lamp Supply Voltage - 1

F2

BLK

750

Ground

F3

ORN

1923

Auxiliary HVAC Switch Supply Voltage

F5

LT BLU

195

Door Lock Control

F6

WHT

194

Door Unlock Control

G1

WHT

1080

Park Lamp Relay Control

G2

--

--

Not Used

G3

BRN

9

Park Lamp Supply Voltage

G4

ORN

740

Battery Positive Voltage

G5

--

--

Not Used

G6

DK GRN

29

Horn Control

G8

BLK

550

Ground

H1

ORN

240

Battery Positive Voltage

H3

ORN

240

Battery Positive Voltage

H4

ORN

740

Battery Positive Voltage

H6

BLK

28

Horn Relay Control

H7

PPL

16

Turn Signal Flasher Signal

H8

--

--

Not Used

H9

LT GRN

62

Hazard Indicator Supply Voltage

J1-K4

--

--

Not Used

Convenience Center (Front View)


Object Number: 607770  Size: LF
(1)Convenience Center C2 Not Used (Upfitter Battery)
(2)Convenience Center C3 (Power Seat)
(3)Convenience Center C4 (Trailer Harness)
(4)Convenience Center C6 (Vanity Mirror)
(5)Convenience Center C7 Not Used (Upfitter Rear Door Lock Power)
(6)Convenience Center C9 Not Used (Upfitter Power Feed)
(7)Convenience Center C11 Not Used (Upfitter Rear Door Lock Switch)
(8)Convenience Center C10 (Rear A/C)
(9)Convenience Center C8 (Active Transfer Case)
(10)Convenience Center C5 (Overhead Console)
(11)Convenience Center C1 (Rear Heater)