GM Service Manual Online
For 1990-2009 cars only
Table 1: Antilock Brake Indicator Relay
Table 2: Brake Pressure Differential Switch
Table 3: Electronic Brake Control Module (EBCM) Connector C1
Table 4: EBCM Connector C2
Table 5: EBCM Connector C3
Table 6: Wheel Speed Sensors

Antilock Brake Indicator Relay


Object Number: 39685  Size: CH

Connector Part Information

    • 12110539
    • 5 Way F Metri-Pack 280 Series, Flexlock (BLK)

Pin

Wire Color

Circuit No.

Function

30

LT GRN

867

ABS Failure Indicator Lamp Output

85

PNK

39

Fuse Output-Ignition 1-Type III Fuse

86

BLK

1450

Ground

87

--

--

Not Used

87A

BLK

250

Ground

Brake Pressure Differential Switch


Object Number: 35437  Size: CH

Connector Part Information

    • 12052646
    • 2 Way F Metri-Pack 150 Series (WHT)

Pin

Wire Color

Circuit No.

Function

A

PPL

680

ABS Pressure Differential Sensor Signal

B

BLK

450

Ground

Electronic Brake Control Module (EBCM) Connector C1


Object Number: 280766  Size: CH

Connector Part Information

    • 12065425
    • 10 Way F Metri-Pack 150 Series (BLK)

Pin

Wire Color

Circuit No.

Function

A

BRN

241

Fuse Output-Ignition 3-Type III Fuse

B

LT GRN

867

ABS Failure Indicator Lamp Output

C

PPL

420

Brake Pedal Switch Input-Torque Converter Clutch

D

--

--

Not Used

E

YEL/BLK

1827

Vehicle Speed Signal-128000 Pulses Per Mile

F

TAN/WHT

799

Diagnostic Signal-ABS

G

PPL

1807

Serial Data Signal-Class B-10400 BAUD-Primary

H

PPL

680

ABS Brake Pressure Differential Sensor Signal

J

BLK

450

Ground

K

--

--

Not Used

K (P32 Export)

BLK

1450

Ground

EBCM Connector C2


Object Number: 68766  Size: CH

Connector Part Information

    • 12124662
    • 5 Way F Metri-Pack 150 Series (BRN)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

830

Wheel Speed Signal-Left Front

B

--

--

Not Used

C

DK GRN

872

Wheel Speed Signal-Right Front

D

YEL

873

Wheel Speed Return-Left Front

E

TAN

833

Wheel Speed Return-Right Front

EBCM Connector C3


Object Number: 62489  Size: CH

Connector Part Information

    • 12085030
    • 2 Way F 630 Series P2S (BLK)

Pin

Wire Color

Circuit No.

Function

A

RED

442

Fuse Output-Battery-Type II Fuse

B

BLK

350

Ground

Wheel Speed Sensors


Object Number: 258922  Size: CH

Connector Part Information

    • 12162852
    • 2 Way F Metri-Pack 150.2 Series P2S (BLK)

Pin

Wire Color

Circuit No.

Function

A (LF)

LT BLU

830

Wheel Speed Sensor Signal (LF)

A (RF)

DK GRN

872

Wheel Speed Sensor Signal (RF)

B (LF)

YEL

873

Wheel Speed Sensor Return (LF)

B (RF)

TAN

833

Wheel Speed Sensor Return (RF)