GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2007 🢒 TopKick C-Series (Conventional) C6/C7/C8 🢒 Brakes 🢒 Air Antilock Brake System 🢒 Air Antilock Brake System Connector End Views
Connector 1: ABS Relay
Connector 2: Brake Pressure Modulator Valve (BPMV) - Left Front
Connector 3: Brake Pressure Modulator Valve (BPMV) - Left Rear
Connector 4: Brake Pressure Modulator Valve (BPMV) - Right Front
Connector 5: Brake Pressure Modulator Valve (BPMV) - Right Rear
Connector 6: Electronic Brake Control Module (EBCM) C1
Connector 7: Electronic Brake Control Module (EBCM) C2
Connector 8: Electronic Brake Control Module (EBCM) C3
Connector 9: Traction Control Switch (NW9)
Connector 10: Traction Control Valve (NW9)
Connector 11: Wheel Speed Sensor (WSS) - Left Front
Connector 12: Wheel Speed Sensor (WSS) - Left Rear
Connector 13: Wheel Speed Sensor (WSS) - Left Rear Middle (Tandem Axle)
Connector 14: Wheel Speed Sensor (WSS) - Right Front
Connector 15: Wheel Speed Sensor (WSS) - Right Rear
Connector 16: Wheel Speed Sensor (WSS) - Right Rear Middle (Tandem Axle)

ABS Relay
Object Number: 535912 Size: CH

Connector Part Information

  • OEM: 12129716
  • Service: 12166225
  • Description: 4-Way F Metri-Pack 280 Series Flexlock (GY)

Terminal Part Information

  • Pins: 30, 87
  • Terminal/Tray: 12110853/4
  • Core/Insulation Crimp: F/5
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)
  • Pins: 85, 86
  • Terminal/Tray: 12110847/4
  • Core/Insulation Crimp: C/5
  • Release Tool/Test Probe: 15315247/J-35616-4A (PU)

ABS Relay

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) - Left Front
Object Number: 847206 Size: CH

Connector Part Information

  • OEM: 12040977
  • Service: 12085492
  • Description: 3-Way F Metri-Pack 280 Series Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 12077411/2
  • Core/Insulation Crimp: 2/5
  • Release Tool/Test Probe: 12094430/J-35616-4A (PU)

Brake Pressure Modulator Valve (BPMV) - Left Front

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) - Left Rear
Object Number: 847206 Size: CH

Connector Part Information

  • OEM: 12040977
  • Service: 12085492
  • Description: 3-Way F Metri-Pack 280 Series Sealed (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Brake Pressure Modulator Valve (BPMV) - Left Rear

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) - Right Front
Object Number: 847206 Size: CH

Connector Part Information

  • OEM: 12040977
  • Service: 12085492
  • Description: 3-Way F Metri-Pack 280 Series Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 12077411/2
  • Core/Insulation Crimp: 2/5
  • Release Tool/Test Probe: 12094430/J-35616-4A (PU)

Brake Pressure Modulator Valve (BPMV) - Right Front

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) - Right Rear
Object Number: 847206 Size: CH

Connector Part Information

  • OEM: 12040977
  • Service: 12085492
  • Description: 3-Way F Metri-Pack 280 Series Sealed (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Brake Pressure Modulator Valve (BPMV) - Right Rear

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: 1857591 Size: CH

Connector Part Information

  • OEM: 13519140
  • Service: See Catalog
  • Description: 15-Way F DT Series, Sealed (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Electronic Brake Control Module (EBCM) C1

Pin

Wire Color

Circuit No.

Function

1

WH/BK

1922

SAE J1587 Serial Data Bus- Primary

2

D-GN

2362

SAE J1939 Serial Data Bus-

3

L-GN

1903

Left Front Wheel Speed Sensor Signal

4

WH

1909

Right Front Wheel Speed Sensor Signal

5

TN/BK

1921

SAE J1587 Serial Data Bus+ Primary

6

YE

2361

SAE J1939 Serial Data Bus+

7

OG

1904

Left Front Wheel Speed Sensor Low Reference

8

BN/WH

1910

Right Front Wheel Speed Sensor Low Reference

9

BN

441

Ignition 3 Voltage

10

BK

2657

ABS Active Signal

11

WH

471

Trailer ABS Indicator Control

12

--

--

Not Used

13

WH

1808

Service Traction Control Signal

14

PU

2661

Air Brake Relay - N.O. Contact

15

BK/WH

151

Ground

Electronic Brake Control Module (EBCM) C2
Object Number: 1857593 Size: CH

Connector Part Information

  • OEM: 13519158
  • Service: See Catalog
  • Description: 18-Way F DT Series, Sealed (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Electronic Brake Control Module (EBCM) C2

Pin

Wire Color

Circuit No.

Function

1

D-BU/WH

1911

Left Rear Wheel Speed Sensor Signal

2

D-GN/WH

1912

Left Rear Wheel Speed Sensor Low Reference

3

L-GN/BK

1916

Right Rear Wheel Speed Sensor Signal

4

L-BU/WH

1917

Right Rear Wheel Speed Sensor Low Reference

5

PU

420

TCC Brake Switch/Cruise Control Release Signal

6

--

--

Not Used

7

GY

1901

Left Front Modulator Hold Control

8

D-GN

1900

Left Front Modulator Exhaust Control

9

YE

1907

Right Front Modulator Hold Control

10

PU

1906

Right Front Modulator Exhaust Control

11

L-BU/BK

1914

Left Rear Modulator Hold Control

12

GY/BK

1913

Left Rear Modulator Exhaust Control

13

L-BU

1902

Left Front Modulator Supply Voltage

14

TN

1908

Right Front Modulator Supply Voltage

15

OG

1915

Left Rear Modulator Supply Voltage

16

PU

1920

Right Rear Modulator Supply Voltage

17

PK/BK

1919

Right Rear Modulator Hold Control

18

L-GN/WH

1918

Right Rear Modulator Exhaust Control

Electronic Brake Control Module (EBCM) C3
Object Number: 1857592 Size: CH

Connector Part Information

  • OEM: 13519157
  • Service: See Catalog
  • Description: 18-Way F DT Series, Sealed (BK)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Electronic Brake Control Module (EBCM) C3

Pin

Wire Color

Circuit No.

Function

1

L-BU

832

Engine Speed Signal

2

--

--

Not Used

3

BK

884

Left Rear Wheel Speed Sensor Signal

4

RD

885

Left Rear Wheel Speed Sensor Low Reference

5

BN

882

Right Rear Wheel Speed Sensor Signal

6

WH

883

Right Rear Wheel Speed Sensor Low Reference

7

PK

2668

Traction Control Valve (Air) Hi

8-12

--

--

Not Used

13

PK/WH

2669

Traction Control Valve (Air) Lo

14-18

--

--

Not Used

Traction Control Switch (NW9)
Object Number: 304344 Size: CH

Connector Part Information

  • OEM: 12177196
  • Service: See Catalog
  • Description: 6-Way F Metri-Pack 150 Series (BN)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Traction Control Switch (NW9)

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

  • OEM: 15336024
  • Service: 88987993
  • Description: 6-Way F Metri-Pack 150 Series (BN)

Terminal Part Information

  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Traction Control Valve (NW9)

Pin

Wire Color

Circuit No.

Function

1

PK

2668

Traction Control Valve (Air) Hi

2

PK/WH

2669

Traction Control Valve (Air) Lo

Wheel Speed Sensor (WSS) - Left Front
Object Number: 697014 Size: CH

Connector Part Information

  • OEM: 15355466
  • Service: 15306399
  • Description: 2-Way M GT 150 Series Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 15326269/19
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 153515247/J-35616-3 (GY)

Wheel Speed Sensor (WSS) - Left Front

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) - Left Rear
Object Number: 1416715 Size: CH

Connector Part Information

  • OEM: 12162852
  • Service: 15305901
  • Description: 2-Way F Metri-Pack 150 Series Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 12124075/5
  • Core/Insulation Crimp: C/A
  • Release Tool/Test Probe: 12180559-1/J-35616-2A (GY)

Wheel Speed Sensor (WSS) - Left Rear

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) - Left Rear Middle (Tandem Axle)
Object Number: 1416715 Size: CH

Connector Part Information

  • OEM: 12162852
  • Service: 15305901
  • Description: 2-Way F Metri-Pack 150 Series Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 12124075/5
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12180559-1/J-35616-2A (GY)

Wheel Speed Sensor (WSS) - Left Rear Middle (Tandem Axle)

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) - Right Front
Object Number: 697014 Size: CH

Connector Part Information

  • OEM: 15355466
  • Service: 15306399
  • Description: 2-Way M GT 150 Series Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 15326269/19
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 153515247/J-35616-3 (GY)

Wheel Speed Sensor (WSS) - Right Front

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) - Right Rear
Object Number: 1416715 Size: CH

Connector Part Information

  • OEM: 12162852
  • Service: 15305901
  • Description: 2-Way F Metri-Pack 150 Series Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 12124075/5
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12180559-1/J-35616-2A (GY)

Wheel Speed Sensor (WSS) - Right Rear

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) - Right Rear Middle (Tandem Axle)
Object Number: 1416715 Size: CH

Connector Part Information

  • OEM: 12162852
  • Service: 15305901
  • Description: 2-Way F Metri-Pack 150 Series Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 12124075/5
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12180559-1/J-35616-2A (GY)

Wheel Speed Sensor (WSS) - Right Rear Middle (Tandem Axle)

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