GM Service Manual Online
For 1990-2009 cars only
Table 1: ABS Relay
Table 2: Brake Pressure Modulator Valve, LH Front
Table 3: Brake Pressure Modulator Valve, RH Front
Table 4: Brake Pressure Modulator Valve, LH Rear (Air)
Table 5: Brake Pressure Modulator Valve, RH Rear (Air)
Table 6: Electronic Brake Control Module C1 (Air)
Table 7: Electronic Brake Control Module C2 (Air)
Table 8: Low Air Pressure Switch
Table 9: Wheel Speed Sensor, LH Front
Table 10: Wheel Speed Sensor, RH Front
Table 11: Wheel Speed Sensor, LH Rear (Air)
Table 12: Wheel Speed Sensor, RH Rear (Air)

ABS Relay


Object Number: 39670  Size: CH

Connector Part Information

    • 12129716
    • 4 Way F Metri-Pack 280 Series, Flexlock, Sealed (GRY)

Pin

Wire Color

Circuit No.

Function

30

RED

1442

Fuse Output-Battery

85

PNK

139

Fuse Output-Ignition

86

BLK

150

Ground

87

PNK

839

Fuse Output-Ignition

Brake Pressure Modulator Valve, LH Front


Object Number: 38598  Size: CH

Connector Part Information

    • 12040977
    • 3 Way F Metri-Pack 280 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

1900

AAS Modulator Output-Exhaust-Left Front

B

LT BLU

1902

AAS Modulator Feed-Left Front

C

GRA

1901

AAS Modulator Output-Hold-Left Front

Brake Pressure Modulator Valve, RH Front


Object Number: 38598  Size: CH

Connector Part Information

    • 12040977
    • 3 Way F Metri-Pack 280 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

PPL

1906

AAS Modulator Output-Exhaust-Right Front

B

TAN

1908

AAS Modulator Feed-Right Front

C

YEL

1907

AAS Modulator Output-Hold-Right Front

Brake Pressure Modulator Valve, LH Rear (Air)


Object Number: 38598  Size: CH

Connector Part Information

    • 12040977
    • 3 Way F Metri-Pack 280 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

GRA/BLK

1913

AAS Modulator Output-Exhaust-Left Rear

B

ORN

1915

AAS Modulator Feed-Left Rear

C

LT BLU/BLK

1914

AAS Modulator Output-Hold-Left Rear

Brake Pressure Modulator Valve, RH Rear (Air)


Object Number: 38598  Size: CH

Connector Part Information

    • 12040977
    • 3 Way F Metri-Pack 280 Series Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/WHT

1918

AAS Modulator Output-Exhaust-Right Rear

B

PPL

1920

AAS Modulator Feed-Right Rear

C

PNK/BLK

1919

AAS Modulator Output-Hold-Right Rear

Electronic Brake Control Module C1 (Air)


Object Number: 309412  Size: CH

Connector Part Information

    • 12034398
    • 30 Way F Metri-Pack 150 Series Pull To Seat, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A1

BLK/WHT

1651

Air Anti Skid System Ground

A2

BLK/WHT

1651

Air Anti Skid System Ground

A3

BLK/WHT

1651

Air Anti Skid System Ground

B1

PNK

839

Fuse Output-Ignition

B2-B3

--

--

Not Used

C1

TAN

1908

AAS Modulator Feed-Right Front

C2-C3

--

--

Not Used

D1

YEL

1907

AAS Modulator Output-Hold-Right Front

D2-D3

--

--

Not Used

E1

PPL

1906

AAS Modulator Output-Exhaust-Right Front

E2

--

--

Not Used

E3

DK BLU

1899

Dash Lamp Relay Output-Coil

F1

DK GRN

1900

AAS Modulator Output-Exhaust-Left Front

F2-F3

--

--

Not Used

G1

GRA

1901

AAS Modulator Output-Hold-Left Front

G2

TAN/BLK

1921

Serial Data Link-A-SAE 1707

G3

WHT/BLK

1922

Serial Data Link-B-SAE 1707

H1

LT BLU

1902

AAS Modulator Feed-Left Front

H2

WHT

1909

AAS Wheel Speed Sensor Signal-Right Front

H3

BRN/WHT

1910

AAS Wheel Speed Sensor Return-Right Front

J1

LT GRN

1903

AAS Wheel Speed Sensor Signal-Left Front

J2

ORN

1904

AAS Wheel Speed Sensor Return-Left Front

J3

--

--

Not Used

K1

PNK

1905

Retarder Disable Output

K2

PNK

839

Fuse Output-Ignition

K3

PNK

839

Fuse Output-Ignition

Electronic Brake Control Module C2 (Air)


Object Number: 230155  Size: CH

Connector Part Information

    • 12040921
    • 18 Way F Metri-Pack 150 Series Pull To Seat, Sealed (BLK)

Pin

Wire Color

Circuit No.

Function

A1

PPL

1920

AAS Modulator Feed-Right Rear

A2-A3

--

--

Not Used

B1

PNK/BLK

1919

AAS Modulator Output-Hold-Right Rear

B2-B3

--

--

Not Used

C1

LT GRN/WHT

1918

AAS Modulator Output-Exhaust-Right Rear

C2-C3

--

--

Not Used

D1

GRA/BLK

1913

AAS Modulator Output-Exhaust-Left Rear

D2-D3

--

--

Not Used

E1

LT BLU/BLK

1914

AAS Modulator Output-Hold-Left Rear

E2

LT GRN/BLK

1916

AAS Wheel Speed Sensor Signal-Right Rear

E3

LT BLU/WHT

1917

AAS Wheel Speed Sensor Return-Right Rear

F1

ORN

1915

AAS Modulator Feed-Left Rear

F2

DK BLU/WHT

1911

AAS Wheel Speed Sensor Signal-Left Rear

F3

DK GRN/WHT

1912

AAS Wheel Speed Sensor Return-Left Rear

Low Air Pressure Switch


Object Number: 236406  Size: CH

Connector Part Information

    • 12065400
    • 2 Way F Metri-Pack 150 Series, Sealed (GRN)

Pin

Wire Color

Circuit No.

Function

A

TAN/WHT

33

Brake Warning Indicator Lamp Output

B

BLK

150

Ground

Wheel Speed Sensor, LH Front


Object Number: 258922  Size: CH

Connector Part Information

    • 12162852
    • 2Way F Metri-Pack 150.2 Pull To Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT BLU

830

Wheel Speed Sensor Signal-Left Front

A

LT GRN

1903

AAS Wheel Speed Sensor Signal-Left Front

B

YEL

873

Wheel Speed Sensor Return-Left Front

B

ORN

1904

AAS Wheel Speed Sensor Return-Left Front

Wheel Speed Sensor, RH Front


Object Number: 258922  Size: CH

Connector Part Information

    • 12162852
    • 2Way F Metri-Pack 150.2 Pull To Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK GRN

872

Wheel Speed Sensor Signal-Right Front

A

WHT

1909

AAS Wheel Speed Sensor Signal-Right Front

B

TAN

833

Wheel Speed Sensor Return-Right Front

B

BRN/WHT

1910

AAS Wheel Speed Sensor Return-Right Front

Wheel Speed Sensor, LH Rear (Air)


Object Number: 258922  Size: CH

Connector Part Information

    • 12162852
    • 2Way F Metri-Pack 150.2 Pull To Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

DK BLU/WHT

1911

AAS Wheel Speed Sensor Signal-Left Rear

B

DK GRN/WHT

1912

AAS Wheel Speed Sensor Return-Left Rear

Wheel Speed Sensor, RH Rear (Air)


Object Number: 258922  Size: CH

Connector Part Information

    • 12162852
    • 2Way F Metri-Pack 150.2 Pull To Seat (BLK)

Pin

Wire Color

Circuit No.

Function

A

LT GRN/BLK

1916

AAS Wheel Speed Sensor Signal-Right Rear

B

LT BLU/WHT

1917

AAS Wheel Speed Sensor Return-Right Rear