GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2005 🢒 TopKick C-Series Commercial (Cutaway) C4/C5 🢒 Brakes 🢒 Air Antilock Brake System 🢒 Air Antilock Brake System Connector End Views
Table 1: ABS Relay
Table 2: Brake Pressure Modulator Valve (BPMV) - LF
Table 3: Brake Pressure Modulator Valve (BPMV) - LR
Table 4: Brake Pressure Modulator Valve (BPMV) - RF
Table 5: Brake Pressure Modulator Valve (BPMV) - RR
Table 6: Electronic Brake Control Module (EBCM) C1
Table 7: Electronic Brake Control Module (EBCM) C2
Table 8: Traction Control Switch (NW9)
Table 9: Traction Control Valve (NW9)
Table 10: Wheel Speed Sensor (WSS) - LF
Table 11: Wheel Speed Sensor (WSS) - LR
Table 12: Wheel Speed Sensor (WSS) - LR Middle (Tandem Axle)
Table 13: Wheel Speed Sensor (WSS) - RF
Table 14: Wheel Speed Sensor (WSS) - RR
Table 15: Wheel Speed Sensor (WSS) - RR Middle (Tandem Axle)

ABS Relay


Object Number: 535912 Size: CH

Connector Part Information
    • 12129716
    • 4-Way F Metri-Pack 280 Series Flexlock (GY)

Pin

Wire Color

Circuit No

Function

30

RD

442

Battery Positive Voltage

85

BK

250

Ground

86

BN

441

Ignition 3 Voltage

87

PU

2661

ABS Switch Signal

Brake Pressure Modulator Valve (BPMV) - LF


Object Number: 847206 Size: CH

Connector Part Information
    • 12040977
    • 3-Way F Metri-Pack 280 Series, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

D-GN

1900

Left Front Modulator Exhaust Control

B

L-BU

1902

Right Front Modulator Supply Voltage

C

GY

1901

Left Front Modulator Hold Control

Brake Pressure Modulator Valve (BPMV) - LR


Object Number: 847206 Size: CH

Connector Part Information
    • 12040977
    • 3-Way F Metri-Pack 280 Series, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

GY/BK

1913

Left Rear Modulator Exhaust Control

B

OG

1915

Left Rear Modulator Supply Voltage

C

L-BU/BK

1914

Left Rear Modulator Hold Control

Brake Pressure Modulator Valve (BPMV) - RF


Object Number: 847206 Size: CH

Connector Part Information
    • 12040977
    • 3-Way F Metri-Pack 280 Series, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

PU

1906

Right Front Modulator Exhaust Control

B

TN

1908

Right Front Modulator Supply Voltage

C

YE

1907

Right Front Modulator Hold Control

Brake Pressure Modulator Valve (BPMV) - RR


Object Number: 847206 Size: CH

Connector Part Information
    • 12040977
    • 3-Way F Metri-Pack 280 Series, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

L-GN/WH

1918

Right Rear Modulator Exhaust Control

B

PU

1920

Right Rear Modulator Supply Voltage

C

PK/BK

1919

Right Rear Modulator Hold Control

Electronic Brake Control Module (EBCM) C1


Object Number: 309412 Size: CH

Connector Part Information
    • 12034398
    • 30-Way F Metri-Pack 150 Series, Pull-to-Seat, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A1-A3

BK/WH

1651

Ground

B1

BN

1941

Ignition 3 Voltage

B2-B3

--

--

Not Used

C1

TN

1908

Right Front Modulator Supply Voltage

C2-C3

--

--

Not Used

D1

YE

1907

Right Front Modulator Hold Control

D2-D3

--

--

Not Used

E1

PU

1906

Right Front Modulator Exhaust Control

E2

WH

471

Trailer ABS Indicator Control (RQ3/U86)

E3

D-BU

1899

Brake Lamp Relay Control

F1

D-GN

1900

Left Front Modulator Exhaust Control

F2-F3

--

--

Not Used

G1

GY

1901

Left Front Modulator Hold Control

G2

TN/BK

1921

SAE J1708 Serial Data A

G3

WH/BK

1922

SAE J1708 Serial Data B

H1

L-BU

1902

Right Front Modulator Supply Voltage

H2

WH

1909

Right Front Wheel Speed Sensor Signal

H3

BN/WH

1910

Right Front Wheel Speed Sensor Low Reference

J1

L-GN

1903

Left Front Wheel Speed Sensor Signal

J2

OG

1904

Left Front Wheel Speed Sensor Low Reference

J3

BK

150

Ground

K1

PK

1905

Retarder Disable Control

K2-K3

BN

1941

Ignition 3 Voltage

Electronic Brake Control Module (EBCM) C2


Object Number: 230155 Size: CH

Connector Part Information
    • 12040921
    • 18-Way F Metri-Pack 150 Series, Pull-to-Seat, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A1

PU

1920

Right Rear Modulator Supply Voltage

A2-A3

--

--

Not Used

B1

PK/BK

1919

Right Rear Modulator Hold Control

B2

BN

882

Right Rear Wheel Speed Sensor Signal

B3

WH

883

Right Rear Wheel Speed Sensor Low Reference

C1

L-GN/WH

1918

Right Rear Modulator Exhaust Control

C2

BK

884

Left Rear Wheel Speed Sensor Signal

C3

RD

885

Left Rear Wheel Speed Sensor Low Reference

D1

GY/BK

1913

Left Rear Modulator Exhaust Control

D2-D3

--

--

Not Used

E1

L-BU/BK

1914

Left Rear Modulator Hold Control

E2

L-GN/BK

1916

Right Rear Wheel Speed Sensor Signal

E3

L-BU/WH

1917

Right Rear Wheel Speed Sensor Low Reference

F1

OG

1915

Left Rear Modulator Supply Voltage

F2

D-BU/WH

1911

Left Rear Wheel Speed Sensor Signal

F3

D-GN/WH

1912

Left Rear Wheel Speed Sensor Low Reference

Traction Control Switch (NW9)


Object Number: 304344 Size: CH

Connector Part Information
    • 12177196
    • 6-Way F Metri-Pack 150 Series (BN)

Pin

Wire Color

Circuit No.

Function

A

BK

750

Ground

B

L-BU

832

Traction Control Active Signal

C

BN/WH

1571

Traction Control Switch Signal

D

BN

541

Ignition 3 Voltage

E

BN

2509

Left Rear Park Lamps Supply Voltage

F

WH

1808

Service Traction Control Signal

Traction Control Valve (NW9)


Object Number: 666646 Size: CH

Connector Part Information
    • 15336024
    • 2-Way F GT 150 Series, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

1

PK

2668

Traction Control Modulator Control Hi

2

PK/WH

2669

Traction Control Modulator Control Lo

Wheel Speed Sensor (WSS) - LF


Object Number: 1416715 Size: CH

Connector Part Information
    • 12162852
    • 2-Way M Metri-Pack 150 Series, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

L-GN

1903

Left Front Wheel Speed Sensor Signal

B

OG

1904

Left Front Wheel Speed Sensor Low Reference

Wheel Speed Sensor (WSS) - LR


Object Number: 1416715 Size: CH

Connector Part Information
    • 12162852
    • 2-Way M Metri-Pack 150 Series, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

D-BU/WH

1911

Left Rear Wheel Speed Sensor Signal

B

D-GN/WH

1912

Left Rear Wheel Speed Sensor Low Reference

Wheel Speed Sensor (WSS) - LR Middle (Tandem Axle)


Object Number: 1416715 Size: CH

Connector Part Information
    • 12162852
    • 2-Way M Metri-Pack 150 Series, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

BK

884

Left Rear Wheel Speed Sensor Signal

B

RD

885

Left Rear Wheel Speed Sensor Low Reference

Wheel Speed Sensor (WSS) - RF


Object Number: 1416715 Size: CH

Connector Part Information
    • 12162852
    • 2-Way M Metri-Pack 150 Series, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

WH

1909

Right Front Wheel Speed Sensor Signal

B

BN/WH

1910

Right Front Wheel Speed Sensor Low Reference

Wheel Speed Sensor (WSS) - RR


Object Number: 1416715 Size: CH

Connector Part Information
    • 12162852
    • 2-Way M Metri-Pack 150 Series, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

L-GN/BK

1916

Right Rear Wheel Speed Sensor Signal

B

L-BU/WH

1917

Right Rear Wheel Speed Sensor Low Reference

Wheel Speed Sensor (WSS) - RR Middle (Tandem Axle)


Object Number: 1416715 Size: CH

Connector Part Information
    • 12162852
    • 2-Way M Metri-Pack 150 Series, Sealed (BK)

Pin

Wire Color

Circuit No.

Function

A

BN

882

Right Rear Wheel Speed Sensor Signal

B

WH

883

Right Rear Wheel Speed Sensor Low Reference