GM Service Manual Online
For 1990-2009 cars only
Connector 1: Electronic Brake Control Module (EBCM)
Connector 2: Steering Angle Sensor (JL4)
Connector 3: Traction Control Switch (A51)
Connector 4: Traction Control Switch (AN3)
Connector 5: Wheel Speed Sensor (WSS) - LF
Connector 6: Wheel Speed Sensor (WSS) - LR
Connector 7: Wheel Speed Sensor (WSS) - RF
Connector 8: Wheel Speed Sensor (WSS) - RR
Connector 9: Yaw and Lateral Acceleration Sensor (JL4)

Electronic Brake Control Module (EBCM)


Object Number: 1664563  Size: CH

Connector Part Information

  • OEM: 3-1326339-7 (JL4), 3-1326339-5 (w/o JL4)
  • Service: See Catalog
  • Description: 46-Way (BK)

Terminal Part Information

  • Pins: 2, 16, 31, 45
  • Terminal/Tray: 7116-4142-02/10
  • Core/Insulation Crimp: D/3
  • Release Tool/Test Probe: 12094430/J-35616-42 (RD)
  • Pins: 3, 4, 8, 9, 10, 12, 12, 13, 13, 15, 18, 19, 22, 23, 24, 25, 26, 26, 27, 27, 29, 32, 37, 38, 39, 41, 42, 43, 44, 21
  • Terminal/Tray: 638551-1/16
  • Core/Insulation Crimp: Pins 3, 4, 8, 9, 10, 12, 12, 13, 13, 15, 18, 19, 22, 23, 24, 25, 26, 26, 27, 27, 29, 32, 37, 38, 39, 41, 42, 43, 44 - K/K
  • Core/Insulation Crimp: Pins 21 - J/J
  • Release Tool/Test Probe: 15315247/J-35616-64B (L-BU)

Electronic Brake Control Module (EBCM)

Pin

Wire Color

Circuit No.

Function

1

--

--

Not Used

2

RD/BK

1442

Battery Positive Voltage

3

TN/BK

2500

High Speed GMLAN Serial Data Bus +

4

TN/BK

2500

High Speed GMLAN Serial Data Bus +

5-7

--

--

Not Used

8

WH/BK

715

Lateral Accelerometer Signal (JL4)

9

YE/BK

7033

Yaw Rate Diagnostic (JL4)

10

L-BU/BK

1764

Steering Wheel Position Signal B (JL4)

11

--

--

Not Used

12

TN/YE

830

Left Front Wheel Speed Sensor Signal (Early Production)

L-BU

830

Left Front Wheel Speed Sensor Signal (Late Production)

13

D-GN

873

Left Front Wheel Speed Sensor Low Reference (Early Production)

YE

873

Left Front Wheel Speed Sensor Low Reference (Late Production)

14

--

--

Not Used

15

GY/PK

1787

Variable Effort Steering Actuator High Effort Control

16

BK

1650

Ground

17

--

--

Not Used

18

TN

2501

High Speed GMLAN Serial Data Bus -

19

TN

2501

High Speed GMLAN Serial Data Bus -

20

--

--

Not Used

21

D-GN/WH

817

Vehicle Speed Signal

22

PU

719

Low Reference (JL4)

23

GY/BK

1337

5-Volt Reference (JL4)

24

OG/BK

556

Low Reference (JL4)

25

GY

1056

5-Volt Reference (JL4)

26

L-BU

872

Right Front Wheel Speed Sensor Signal (Early Production)

D-GN

872

Right Front Wheel Speed Sensor Signal (Mid Production)

D-GN/WH

872

Right Front Wheel Speed Sensor Signal (Late Production)

27

TN/YE

833

Right Front Wheel Speed Sensor Low Reference (Early Production)

TN/WH

833

Right Front Wheel Speed Sensor Low Reference (Late Production)

28

--

--

Not Used

29

WH

345

Variable Effort Steering Actuator Low Effort Control

30

--

--

Not Used

31

RD

1542

Battery Positive Voltage

32

OG/YE

5727

High Speed GMLAN Serial Data Wake Up

33-36

--

--

Not Used

37

D-BU

716

Yaw Rate Sensor Signal (JL4)

38

D-BU

5370

Yaw Rate Frequency (JL4)

39

L-GN

1763

Steering Wheel Position Signal A (JL4)

40

--

--

Not Used

41

OG

885

Left Rear Wheel Speed Sensor Low Reference

42

GY/YE

884

Left Rear Wheel Speed Sensor Signal

43

BN

882

Right Rear Wheel Speed Sensor Signal

44

GY/D-BU

883

Right Rear Wheel Speed Sensor Low Reference

45

BK

1650

Ground

46

--

--

Not Used

Steering Angle Sensor (JL4)


Object Number: 40427  Size: CH

Connector Part Information

  • OEM: 12064978
  • Service: 12125678
  • Description: 6-Way F Micro-Pack 100 Series (GY)

Terminal Part Information

  • Pins: 1, 2, 5, 6
  • Terminal/Tray: See Terminal Repair Kit
  • Core/Insulation Crimp: See Terminal Repair Kit
  • Release Tool/Test Probe: See Terminal Repair Kit

Steering Angle Sensor (JL4)

Pin

Wire Color

Circuit No.

Function

1

GY

1056

5-Volt Reference

2

OG/BK

556

Low Reference

3-4

--

--

Not Used

5

L-GN

1763

Steering Wheel Position Signal A

6

L-BU

1764

Steering Wheel Position Signal B

Traction Control Switch (A51)


Object Number: 39660  Size: CH

Connector Part Information

  • OEM: 12047785
  • Service: 12102900
  • Description: 4-Way F Metri-Pack 150 Series (BK)

Terminal Part Information

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

Traction Control Switch (A51)

Pin

Wire Color

Circuit No.

Function

A

BK

450

Ground

B

--

--

Not Used

C

BN/WH

1571

Traction Control Switch Signal

D

GY

8

Instrument Panel Lamp Supply Voltage/Instrument Panel Lamps Dimmer Switch Signal

Traction Control Switch (AN3)


Object Number: 35441  Size: CH

Connector Part Information

  • OEM: 12059250
  • Service: 12085481
  • Description: 2-Way M Metri-Pack 150 Series (WH)

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 (AN3)

Pin

Wire Color

Circuit No.

Function

A

BN/WH

1571

Traction Control Switch Signal

B

BK

350

Ground

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, Sealed (GY)

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) - LF

Pin

Wire Color

Circuit No.

Function

A

TN/YE

830

Left Front Wheel Speed Sensor Signal (Early Production)

L-BU

830

Left Front Wheel Speed Sensor Signal (Late Production)

B

D-GN

873

Left Front Wheel Speed Sensor Low Reference (Early Production)

YE

873

Left Front Wheel Speed Sensor Low Reference (Late Production)

Wheel Speed Sensor (WSS) - LR


Object Number: 537107  Size: CH

Connector Part Information

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

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) - LR

Pin

Wire Color

Circuit No.

Function

A

TN

884

Left Rear Wheel Speed Sensor Signal

B

OG

885

Left Rear Wheel Speed Sensor 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, Sealed (GY)

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) - RF

Pin

Wire Color

Circuit No.

Function

A

L-BU

872

Right Front Wheel Speed Sensor Signal (Early Production)

D-GN

872

Right Front Wheel Speed Sensor Signal (Mid Production)

D-GN/WH

872

Right Front Wheel Speed Sensor Signal (Late Production)

B

TN/YE

833

Right Front Wheel Speed Sensor Low Reference (Early Production)

TN/WH

833

Right Front Wheel Speed Sensor Low Reference (Late Production)

Wheel Speed Sensor (WSS) - RR


Object Number: 537107  Size: CH

Connector Part Information

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

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) - RR

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

Yaw and Lateral Acceleration Sensor (JL4)


Object Number: 1420665  Size: CH

Connector Part Information

  • OEM: 2-967616-1
  • Service: 88953345
  • Description: 6-Way F Micro Series (GY)

Terminal Part Information

  • Terminal/Tray: 962885-5/15
  • Core/Insulation Crimp: 6/6
  • Release Tool/Test Probe: 12094429/J-35616-64B (L-BU)

Yaw and Lateral Acceleration Sensor (JL4)

Pin

Wire Color

Circuit No.

Function

1

GY/BK

1337

5-Volt Reference

2

WH/BK

715

Lateral Accelerometer Signal

3

D-BU

716

Yaw Rate Sensor Signal

4

YE/BK

7033

Yaw Rate Diagnostic

5

D-BU

5370

Yaw Rate Frequency

6

PU

719

Low Reference