GM Service Manual Online
For 1990-2009 cars only
Connector 1: Electronic Brake Control Module (EBCM) C1
Connector 2: Electronic Brake Control Module (EBCM) C2 (8600 GVW or Less w/Rear Disc Brakes)
Connector 3: Electronic Brake Control Module (EBCM) C2 (Greater Than 8600 GVW or Rear Drum Brakes)
Connector 4: Traction Control Switch (NW7)
Connector 5: Wheel Speed Sensor (WSS) Left Front
Connector 6: Wheel Speed Sensor (WSS) Right Front

Electronic Brake Control Module (EBCM) C1


Object Number: 684792  Size: CH

Connector Part Information

  • OEM: 12052613
  • Service: 12085212
  • Description: 2-Way F Metri-Pack 480 Series Sealed (BK)

Terminal Part Information

  • Terminal/Tray: 12052139/18
  • Core/Insulation Crimp: F/3
  • Release Tool/Test Probe: 12094430/J-35616-40 (BU)

Electronic Brake Control Module (EBCM) C1

Pin

Wire Color

Circuit No.

Function

A

BK

2150

Ground

B

RD

442

Battery Positive Voltage

Electronic Brake Control Module (EBCM) C2 (8600 GVW or Less w/Rear Disc Brakes)


Object Number: 365992  Size: CH

Connector Part Information

  • OEM: 12193519
  • Service: 88987916
  • Description: 16-Way F Micro-Pack 100W Series (NA)

Terminal Part Information

  • Terminal/Tray: 12084913/5
  • Core/Insulation Crimp: W/W
  • Release Tool/Test Probe: 12122523/J-35616-6 (BN)

Electronic Brake Control Module (EBCM) C2 (8600 GVW or Less w/Rear Disc Brakes)

Pin

Wire Color

Circuit No.

Function

A1

BN

441

Ignition 3 Voltage

A2

YE

873

Left Front Wheel Speed Sensor Low Reference

A3

D-GN

872

Right Front Wheel Speed Sensor Signal

A4

TN/BK

464

Delivered Torque Signal (NW7)

A5-A7

--

--

Not Used

A8

BK/WH

1695

Axle Switch Signal (w/o NW7)

A8

BK/WH

1695

Traction Control Switch Signal (w/ NW7)

B1

YE/BK

1827

Vehicle Speed Signal

B2

L-BU

830

Left Front Wheel Speed Sensor Signal

B3

TN

833

Right Front Wheel Speed Sensor Low Reference

B4

OG/BK

463

Requested Torque Signal (NW7)

B5

PU

420

TCC Brake Switch/Cruise Control Release Signal

B6

L-BU

1122

Class 2 Serial Data

B7

--

--

Not Used

B8

PU

333

Brake Fluid Level Sensor Signal

Electronic Brake Control Module (EBCM) C2 (Greater Than 8600 GVW or Rear Drum Brakes)


Object Number: 861663  Size: CH

Connector Part Information

  • OEM: 15339077
  • Service: 88986458
  • Description: 20-Way F Micro-Pack 100W (BK)

Terminal Part Information

  • Terminal/Tray: 12084913/5
  • Core/Insulation Crimp: W/W
  • Release Tool/Test Probe: 12122523/J-35616-6 (BN)

Electronic Brake Control Module (EBCM) C2 (Greater Than 8600 GVW or Rear Drum Brakes)

Pin

Wire Color

Circuit No.

Function

A1

YE

873

Left Front Wheel Speed Sensor Low Reference

A2

D-GN

872

Right Front Wheel Speed Sensor Signal

A3

PU

420

TCC Brake Switch/Cruise Control Release Signal

A4-A6

--

--

Not Used

A7

TN/BK

464

Delivered Torque Signal (NW7)

A8

BK/WH

1695

Axle Switch Signal (w/o NW7)

A9

L-BU

1122

Class 2 Serial Data

A10

PU

333

Brake Fluid Level Sensor Signal

B1

L-BU

830

Left Front Wheel Speed Sensor Signal

B2

TN

833

Right Front Wheel Speed Sensor Low Reference

B3

YE/BK

1827

Vehicle Speed Signal

B4

BN/WH

1571

Traction Control Switch Signal (NW7)

B5-B6

--

--

Not Used

B7

OG/BK

463

Requested Torque Signal (NW7)

B8-B9

--

--

Not Used

B10

BN

441

Ignition 3 Voltage

Traction Control Switch (NW7)


Object Number: 524811  Size: CH

Connector Part Information

  • OEM: 12186758
  • Service: 15306328
  • Description: 8-Way F Metri-Pack 150 Series (GY)

Terminal Part Information

  • Terminal/Tray: 12064971/5
  • Core/Insulation Crimp: E/C
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Traction Control Switch (NW7)

Pin

Wire Color

Circuit No.

Function

A

BK/WH

1851

Ground

B-E

--

--

Not Used

F

BN/WH

230

Instrument Panel Lamps Dimming Control

G

BN/WH

1571

Traction Control Switch Signal

H

BN

441

Ignition 3 Voltage

Wheel Speed Sensor (WSS) Left Front


Object Number: 635009  Size: CH

Connector Part Information

  • OEM: 12052641
  • Service: 12102747
  • Description: 2-Way F Metri-Pack 150 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12048074/2
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Wheel Speed Sensor (WSS) Left Front

Pin

Wire Color

Circuit No.

Function

A

L-BU

830

Left Front Wheel Speed Sensor Signal

B

YE

873

Left Front Wheel Speed Sensor Low Reference

Wheel Speed Sensor (WSS) Right Front


Object Number: 635009  Size: CH

Connector Part Information

  • OEM: 12052641
  • Service: 12102747
  • Description: 2-Way F Metri-Pack 150 Series (BK)

Terminal Part Information

  • Terminal/Tray: 12048074/2
  • Core/Insulation Crimp: E/1
  • Release Tool/Test Probe: 12094429/J-35616-2A (GY)

Wheel Speed Sensor (WSS) Right Front

Pin

Wire Color

Circuit No.

Function

A

D-GN

872

Right Front Wheel Speed Sensor Signal

B

TN

833

Right Front Wheel Speed Sensor Low Reference