GM Service Manual Online
For 1990-2009 cars only
Table 1: Body Control Module Connector C1
Table 2: Body Control Module Connector C2
Table 3: Body Control Module Connector C3

Body Control Module Connector C1


Object Number: 191572  Size: CF

Connector Part Information

    • 12160778
    • 24-Way F Micro-Pack 100 Series (BRN)

Pin

Wire Color

Circuit No.

Function¹

A1

BLK

1850

Ground

A2

ORN

1140

TBC Fuse

A3

WHT

194

Passenger Door Unlock Relay Coil

A4

LT BLU

195

Door Lock Relay Coil

A5-A6

--

--

Not Used

A7

BLK

755

RAP Relay Coil

A8

DK BLU

1393

Inadvertent Power Relay Coil

A9

BLK

28

Horn Relay Coil

A10

YEL

1977

Rear Fog Lamp Relay Coil

A11

--

--

Not Used

A12

PPL

1807

Class 2 Serial Data Signal

B1

BLK

1850

Ground

B2

PNK

39

GAUGES Fuse

B3

RED/WHT

812

Passlock™ Sensor Power

B4

ORN

461

RFA Serial Data Signal

B5

--

--

Not Used

B6

LT BLU/WHT

1414

Left Turn Signal Fuse

B7

DK BLU/WHT

1415

Right Turn Signal Fuse

B8

--

--

Not Used

B9

BRN

41

CRUISE Fuse

B10

LT BLU

1134

Park Brake Switch Signal

B11

BLK/WHT

238

Seat Belt Switch Signal

B12

--

--

Not Used

¹Refer to Scan Tool Data List for more information.

Body Control Module Connector C2


Object Number: 191573  Size: CF

Connector Part Information

    • 12110206
    • 24-Way F Micro-Pack 100 Series (LT BLU)

Pin

Wire Color

Circuit No.

Function¹

A1

YEL

710

Class 2 Serial Data Signal

A2

ORN/BLK

1057

Passlock™ Sensor Return

A3

GRY/BLK

690

Courtesy Lamp Relay Coil

A4

LT GRN

1391

Driver Door Unlock Relay Coil

A5

WHT

1080

Park Lamp Relay Coil

A6

LT BLU

1344

Lift Glass Relay Coil

A7

DK GRN/WHT

1317

Front Fog Lamp Relay Coil

A8-A10

--

--

Not Used

A11

WHT

352

Headlamp Power Relay Coil

A12

PPL/WHT

1382

Dimming Signal

B1

DK GRN/WHT

817

VSS Input 4,000 Pulses Per Mile

B2

--

--

Not Used

B3

YEL

1836

Passlock™ Sensor Data

B4

--

--

Not Used

B5

PPL

524

High/Low Beam Headlamp Selector Switch Input

B6

BRN

2409

PARK LPS Fuse

B7-B8

--

--

Not Used

B9

LT GRN

80

KEY IN/KEY OUT Signal

B10

PNK/BLK

1303

Gate Ajar Switch Signal

B11

DK BLU/WHT

727

Passenger Door Jamb and Lift Glass Ajar Switch Signal

B12

ORN

1732

Interior Lamp Request Input

¹Refer to Scan Tool Data List for more information.

Body Control Module Connector C3


Object Number: 191574  Size: CF

Connector Part Information

    • 12191375
    • 16-Way F Micro-Pack 100 Series (PPL)

Pin

Wire Color

Circuit No.

Function¹

A1

--

--

Not Used

A2

DK BLU/WHT

1495

Dome Lamp Switch Request

A3

BRN

1356

Flash To Pass

A4

GRY

705

5 Volt Reference

A5

GRY

1220

Dome Lamp Dimming Switch Power Input

A6

WHT

278

Ambient Light Photocell Signal Return

A7-A8

--

--

Not Used

B1

BLK

1576

Lift Glass Release Switch

B2

ORN

54

Front Door Mini Wedges and RF Door Jamb Switch Signal

B3

LT GRN

262

Door Key Lock Cylinder Switch Signal-Driver

B4

TAN

126

Driver Door Jamb Switch Signal

B5

ORN

192

Front Fog Lamp Switch

B6

PPL

328

Dome Override Switch

B7

LT BLU

187

Rear Fog Lamp Switch

B8

PPL/WHT

549

Headlamp Request Switch Signal

¹Refer to Scan Tool Data List for more information.