GM Service Manual Online
For 1990-2009 cars only
Table 1: Electronic Suspension Control (ESC) Module C1
Table 2: Electronic Suspension Control (ESC) Module C2
Table 3: Electronic Suspension Control (ESC) Module C3
Table 4: Suspension Damper - LF
Table 5: Suspension Damper - LR
Table 6: Suspension Damper - RF
Table 7: Suspension Damper - RR
Table 8: Suspension Position Sensor - LF
Table 9: Suspension Position Sensor - LF
Table 10: Suspension Position Sensor - LR
Table 11: Suspension Position Sensor - RF
Table 12: Suspension Position Sensor - RR

Electronic Suspension Control (ESC) Module C1


Object Number: 39787  Size: CH

Connector Part Information

    • OEM: 12129025
    • Service: 12129025
    • 32-Way F Micro-Pack 100 Series (CL)

Pin

Wire Color

Circuit No.

Function

1

L-BU

1107

Left Front Damper Control

2

--

--

Not Used

3

TN/WH

1207

Left Front Suspension Position Sensor Signal

4

PU/WH

1205

Left Front Suspension Position Sensor Voltage Reference

5-12

--

--

Not Used

13

TN/WH

1213

Right Front Suspension Position Sensor Signal

14

PU/WH

1211

Right Front Suspension Position Sensor Voltage Reference

15

--

--

Not Used

16

GY

1117

Right Front Damper Low Reference

17

GY

1113

Left Front Damper Low Reference

18

--

--

Not Used

19

L-BU/BK

1206

Left Front Suspension Position Sensor Low Reference

20-28

--

--

Not Used

29

L-BU/BK

1212

Right Front Suspension Position Sensor Low Reference

30-31

--

--

Not Used

32

L-BU/WH

1116

Right Front Damper Control

Electronic Suspension Control (ESC) Module C2


Object Number: 39784  Size: CH

Connector Part Information

    • OEM: 12129225
    • Service: 15306089
    • 24-Way F Micro-Pack 100 Series (D-GN)

Pin

Wire Color

Circuit No.

Function

1

D-BU/WH

1114

Left Rear Damper Control

2

--

--

Not Used

3

L-GN/WH

1210

Left Rear Suspension Position Sensor Signal

4

OG/BK

1208

Left Rear Suspension Position Sensor Voltage Reference

5

--

--

Not Used

6

TN/BK

2500

SCM High Speed GMLAN Serial Data Bus +

7

TN/BK

2500

SCM High Speed GMLAN Serial Data Bus +

8

--

--

Not Used

9

L-GN/WH

1216

Right Rear Suspension Position Sensor Signal

10

OG/BK

1214

Right Rear Suspension Position Sensor Voltage Reference

11

--

--

Not Used

12

D-GN

1119

Right Rear Damper Low Reference

13

D-GN

1115

Left Rear Damper Low Reference

14

--

--

Not Used

15

L-GN/BK

1209

Left Rear Suspension Position Sensor Low Reference

16-17

--

--

Not Used

18

TN

2501

SCM High Speed GMLAN Serial Data Bus -

19

TN

2501

SCM High Speed GMLAN Serial Data Bus -

20

--

--

Not Used

21

L-GN/BK

1215

Right Rear Suspension Position Sensor Low Reference

22-23

--

--

Not Used

24

D-BU/WH

1118

Right Rear Damper Control

Electronic Suspension Control (ESC) Module C3


Object Number: 832586  Size: CH

Connector Part Information

    • OEM: 12146741
    • Service: 12146741
    • 5-Way F Metri-Pack 280 Series (WH)

Pin

Wire Color

Circuit No.

Function

A

--

--

Not Used

B

RD/WH

2840

Battery Positive Voltage

C

PK

1339

Ignition 1 Voltage

D

BK

1050

Ground

E

--

--

Not Used

Suspension Damper - LF


Object Number: 287974  Size: CH

Object Number: 1486322  Size: CH

Connector Part Information

    • OEM: 15305168
    • Service: 12167117
    • 2-Way F Metri-Pack 150 Series (GY)
    • Suspension Damper Adapter
    • OEM: 15359261
    • Service: 88953232
    • 2-Way M Metri-Pack 150 Series (L-GY)

Pin

Wire Color

Circuit No.

Function

A

L-BU/WH

1107

Left Front Damper Control

B

GY

1113

Left Front Damper Low Reference

Suspension Damper - LR


Object Number: 287974  Size: CH

Object Number: 1486322  Size: CH

Connector Part Information

    • OEM: 15305168
    • Service: 12167117
    • 2-Way F Metri-Pack 150 Series (GY)
    • Suspension Damper Adapter
    • OEM: 15359261
    • Service: 88953232
    • 2-Way M Metri-Pack 150 Series (L-GY)

Pin

Wire Color

Circuit No.

Function

A

D-BU/WH

901

Left Rear Damper Control

B

D-GN

902

Left Rear Damper Low Reference

Suspension Damper - RF


Object Number: 287974  Size: CH

Object Number: 1486322  Size: CH

Connector Part Information

    • OEM: 15305168
    • Service: 12167117
    • 2-Way F Metri-Pack 150 Series (GY)
    • Suspension Damper Adapter
    • OEM: 15359261
    • Service: 88953232
    • 2-Way M Metri-Pack 150 Series (L-GY)

Pin

Wire Color

Circuit No.

Function

A

L-BU/WH

1116

Right Front Damper Control

B

GY

1117

Right Front Damper Low Reference

Suspension Damper - RR


Object Number: 287974  Size: CH

Object Number: 1486322  Size: CH

Connector Part Information

    • OEM: 15305168
    • Service: 12167117
    • 2-Way F Metri-Pack 150 Series (GY)
    • Suspension Damper Adapter
    • OEM: 15359261
    • Service: 88953232
    • 2-Way M Metri-Pack 150 Series (L-GY)

Pin

Wire Color

Circuit No.

Function

A

D-BU/WH

901

Right Rear Damper Control

B

D-GN

902

Right Rear Damper Low Reference

Suspension Position Sensor - LF


Object Number: 655690  Size: CH

Connector Part Information

    • OEM: 15326556
    • Service: 88953359
    • 3-Way M Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

PU/WH

1205

Left Front Suspension Position Sensor Voltage Reference

B

TN/WH

1207

Left Front Suspension Position Sensor Signal

C

L-BU/BK

1206

Left Front Suspension Position Sensor Low Reference

Suspension Position Sensor - LF


Object Number: 655690  Size: CH

Connector Part Information

    • OEM: 15326556
    • Service: 88953359
    • 3-Way M Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

PU/WH

1205

Left Front Suspension Position Sensor Voltage Reference

B

TN/WH

1207

Left Front Suspension Position Sensor Signal

C

L-BU/BK

1206

Left Front Suspension Position Sensor Low Reference

Suspension Position Sensor - LR


Object Number: 655690  Size: CH

Connector Part Information

    • OEM: 15326556
    • Service: 88953359
    • 3-Way M Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

OG/BK

1208

Left Rear Suspension Position Sensor Voltage Reference

B

L-GN/WH

1210

Left Rear Suspension Position Sensor Signal

C

L-GN/BK

1209

Left Rear Suspension Position Sensor Low Reference

Suspension Position Sensor - RF


Object Number: 655690  Size: CH

Connector Part Information

    • OEM: 15326556
    • Service: 88953359
    • 3-Way M Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

PU/WH

1211

Right Front Suspension Position Sensor Voltage Reference

B

TN/WH

1213

Right Front Suspension Position Sensor Signal

C

L-BU/BK

1212

Right Front Suspension Position Sensor Low Reference

Suspension Position Sensor - RR


Object Number: 655690  Size: CH

Connector Part Information

    • OEM: 15326556
    • Service: 88953359
    • 3-Way M Metri-Pack 150 Series (BK)

Pin

Wire Color

Circuit No.

Function

A

OG/BK

1214

Right Rear Suspension Position Sensor Voltage Reference

B

L-GN/WH

1216

Right Rear Suspension Position Sensor Signal

C

L-GN/BK

1215

Right Rear Suspension Position Sensor Low Reference