GM Service Manual Online
For 1990-2009 cars only
Table 1: Body Control Module (BCM) - J1
Table 2: Body Control Module (BCM) - J2
Table 3: Body Control Module (BCM) - J3
Table 4: Low Brake Fluid Switch

Body Control Module (BCM) - J1


Object Number: 884245  Size: CH

Connector Part Information

    • 12191375
    • Purple

Pin

Wire Color

Circuit No.

Function

A1-A2

--

--

Not Used

A3

WHT

94

IPFB - Door Unlock Relay

A4

LT BLU

195

IPFB - Door Lock Relay

A5

GRA

382

IPFB - Decklid/Liftgate Release

A6

TAN

694

IPFB - Driver Door Lock Motor

A7-A8

--

--

Not Used

B1-B8

--

--

Not Used

Body Control Module (BCM) - J2


Object Number: 884248  Size: CH

Connector Part Information

    • 12110206
    • BLU

Pin

Wire Color

Circuit Number

Function

A1

BRN

9

IPFB - Park Lamp Switch

A2

--

--

Not Used

A3

YEL

43

IPFB - Radio Ignition

A4

ORN/BLK

737

IPFB - Cargo Lamp Switch

A5

BRN/WHT

230

I/P Switch - Dimmer/Traction/Fog - Dimmer Pot

A6

PNK

1200

Headlamp Switch

A7

YEL

1836

Passlock

A8

ORN

52

Blower Switch - High Speed

A9-A10

--

--

Not Used

A11

ORN

1640

IPFB - B+

A12

--

--

Not Used

B1

BLK

350

I/P Splice Ground Pack #2

B2

LT BLU

1134

Park Brake Switch

B3-B4

--

--

Not Used

B5

GRA/BLK

745

LF Door Jamb Switch

B6

DK BLU

1201

UHFB - LO Beam Switch

B7

PPL

1807

EBTCM (ABS)/PCM (Non ABS) - Class II

B8

PPL

1807

IPFB - Class II SDM

B9

PPL

1807

DLC - Class II

B10

ORN

340

IPFB - Body Fuse

B11

BLK

550

IPFB - Ground Driver Door Unlock Relay

B12

LT GRN/BLK

748

IPFB - Passenger Door Jamb

Body Control Module (BCM) - J3


Object Number: 884248  Size: CH

Connector Part Information

    • 12110206
    • BLU

Pin

Wire Color

Circuit Number

Function

A1

WHT

156

I/P to Body Inline - Dome Lamp

A2

GRA

8

IPFB - Dimmer Output

A3

--

--

Not Used

A4

LT GRN/BLK

592

UHFB - Daytime Running Lamp Relay

A5

DK GRN/WHT

1135

BTSI Solenoid

A6-A8

--

--

Not Used

A9

LT BLU

292

HVAC Control Head - Rear Defog

A10

DK GRN

603

A/C HI/LO Pressure Switch

A11

--

--

Not Used

A12

PNK

39

IPFB - Ignition 1

B1

PPL

719

I/P Switch (Dimmer/Traction/Fog - Dimmer Return)

B2

BLK

350

Ground - I/P Splice Pack #2

B3

BLK

1835

Passlock Sensor - Return

B4

WHT

193

IPFB - Rear Defog Relay

B5

--

--

Not Used

B6

ORN

52

IPFB - Blower Control

B7

BLK

28

UHFB - Horn Relay

B8

--

--

Not Used

B9

YEL

749

Cluster Security TT

B10

WHT

1459

Passlock Sensor - Power

B11

TAN/WHT

33

Low Brake Fluid Sensor

B12

LT GRN

80

Ignition Switch - Key Minder

Low Brake Fluid Switch


Object Number: 884993  Size: CH

Connector Part Information

    • 12162194
    • BLK

Pin

Wire Color

Circuit No.

Function

A

BLK

350

Ground - I/P Splice Pack #2

B

TAN/WHT

33

BCM - Low Brake Fluid Switch