GM Service Manual Online
For 1990-2009 cars only
Connector 1: Electronic Brake Control Module (EBCM)
Connector 2: Traction Control Switch (NW9)
Connector 3: Wheel Speed Sensor (WSS) - LF
Connector 4: Wheel Speed Sensor (WSS) - LR
Connector 5: Wheel Speed Sensor (WSS) - RF
Connector 6: Wheel Speed Sensor (WSS) - RR

Electronic Brake Control Module (EBCM)


Object Number: 1283121  Size: CH

Connector Part Information

  • OEM: 1928403008
  • Service: See Catalog
  • Description: 31-Way F (BK)

Electronic Brake Control Module (EBCM)

Pin

Wire Color

Circuit Number

Function

1

BN

882

RR WSS Signal

2

--

--

Not Used

3

WH

883

RR WSS Low Reference

4

D-GN

872

RF WSS Signal

5

TN

833

RF WSS Low Reference

6

YE

873

LF WSS Low Reference

7

L-BU

830

LF WSS Signal

8

BK

884

LR WSS Signal

9

RD

885

LR WSS Low Reference

10

--

--

Not Used

11

WH/BK

5043

Keyword Serial Data

12-14

--

--

Not Used

15

PK

1039

Ignition 1 Voltage

16

BK

350

Ground

17

RD

702

Battery Positive Voltage

18

OG

140

Battery Positive Voltage

19

BK

350

Ground

20-24

--

--

Not Used

25

TN

2501

CAN Low

26

--

--

Not Used

27

TN/WH

2500

CAN High

28

--

--

Not Used

29

TN

2501

CAN Low

30

TN/WH

2500

CAN High

31

BN/WH

1571

Traction Control Switch Signal (NW9)

Traction Control Switch (NW9)


Object Number: 258245  Size: CH

Connector Part Information

  • OEM: 12065872
  • Service: See Catalog
  • Description: 7-Way F Micro-Pack 100 Series (GY)

Traction Control Switch (NW9)

Pin

Wire Color

Circuit Number

Function

1

--

--

Not Used

2

BN/WH

1571

Traction Control Switch Signal

3

--

--

Not Used

4

PK

139

Ignition 1 Voltage

5

BK

550

Ground

6

GY

8

I/P Lamps Supply Voltage

7

--

--

Not Used

Wheel Speed Sensor (WSS) - LF


Object Number: 537107  Size: CH

Connector Part Information

  • OEM: 12052644
  • Service: See Catalog
  • Description: 2-Way F Metri-Pack 150 Series (GY)

Wheel Speed Sensor (WSS) - LF

Pin

Wire Color

Circuit Number

Function

A

L-BU

830

LF WSS Signal

B

YE

873

LF WSS Low Reference

Wheel Speed Sensor (WSS) - LR


Object Number: 605500  Size: CH

Connector Part Information

  • OEM: 12162343
  • Service: See Catalog
  • Description: 2-Way M Metri-Pack 150 Series (GY)

Wheel Speed Sensor (WSS) - LR

Pin

Wire Color

Circuit Number

Function

A

BK

884

LR WSS Signal

B

RD

885

LR WSS Low Reference

Wheel Speed Sensor (WSS) - RF


Object Number: 537107  Size: CH

Connector Part Information

  • OEM: 12052644
  • Service: See Catalog
  • Description: 2-Way F Metri-Pack 150 Series (GY)

Wheel Speed Sensor (WSS) - RF

Pin

Wire Color

Circuit Number

Function

A

TN

833

RF WSS Low Reference

B

D-GN

872

RF WSS Signal

Wheel Speed Sensor (WSS) - RR


Object Number: 605500  Size: CH

Connector Part Information

  • OEM: 12162343
  • Service: See Catalog
  • Description: 2-Way M Metri-Pack 150 Series (GY)

Wheel Speed Sensor (WSS) - RR

Pin

Wire Color

Circuit Number

Function

A

BN

882

RR WSS Signal

B

WH

883

RR WSS Low Reference