GM Service Manual Online
For 1990-2009 cars only
Table 1: Brake Pedal Position Sensor
Table 2: Electro Hydraulic Power Steering (EHPS) C1
Table 3: Electro Hydraulic Power Steering (EHPS) C2
Table 4: Rear Wheel Steering Switch (NYS)
Table 5: Steering Wheel Speed/Position Sensor

Brake Pedal Position Sensor


Object Number: 1243663  Size: CH

Connector Part Information

    • 15332132
    • 3-Way F GT 150 Series (BLK)

Pin

Wire Color

Circuit Number

Function

A

RED

5688

Brake Pedal Position Sensor 5V Supply

B

DK BLU

5066

Brake Pedal Position Sensor Signal

C

WHT

5689

Brake Pedal Position Sensor 5V Return

Electro Hydraulic Power Steering (EHPS) C1


Object Number: 814661  Size: CH

Connector Part Information

    • 15355404
    • 2-Way F Maxi 800 SLD (BLK)

Pin

Wire Color

Circuit Number

Function

A

RED

5875

EHPS 42V Battery

B

BLK

5691

EHPS 42V Ground

Electro Hydraulic Power Steering (EHPS) C2


Object Number: 39784  Size: CH

Connector Part Information

    • 12129225
    • 24-Way F Micro-Pack 100 Series, Sealed (BLK)

Pin

Wire Color

Circuit Number

Function

1

--

--

Not Used

2

BLK/WHT

1851

Ground

3-4

--

--

Not Used

5

ORN

5688

Brake Pedal Position Sensor 5V Supply

6

YEL

5066

Brake Pedal Position Sensor Signal

7

GRY/BLK

5689

Brake Pedal Position Sensor 5V Return

8

TAN

2501

High Speed GMLAN Serial Data Bus-

9

TAN/WHT

2500

High Speed GMLAN Serial Data Bus+

10

BLK/WHT

451

Ground

11

PNK

43

Accessory Voltage

12

--

--

Not Used

13

LT GRN

1763

Steering Wheel Position Signal A

14

--

--

Not Used

15

LT BLU

1764

Steering Wheel Position Signal B

16-17

--

--

Not Used

18

YEL/BLK

5696

EHPS Interlock Signal

19

YEL/BLK

5696

EHPS Interlock Signal

20

TAN

2501

High Speed GMLAN Serial Data Bus-

21

TAN/WHT

2500

High Speed GMLAN Serial Data Bus+

22

PNK

1839

Ignition 1 Voltage

23-24

--

--

Not Used

Rear Wheel Steering Switch (NYS)


Object Number: 62435  Size: CH

Connector Part Information

    • 12047531
    • 10-Way F Micro-Pack 100 (BLK)

Pin

Wire Color

Circuit Number

Function

1

--

--

Not Used

2

ORN

2538

Brake Pedal Position Sensor Signal

3

LT BLU

2568

Brake Pedal Position Sensor 5V Return

4

TAN

2569

4 Wheel Steer Mode Indicator Control

5

BRN/WHT

230

Instrument Panel Lamps Dimming Control

6

BLK

1050

Ground

7

--

--

Not Used

8

PPL/WHT

1382

LED Dimming Signal/LED Dimming Supply

9

DK GRN/

WHT

2891

Rear Wheel Steering Mode Select Swtich Signal

10

DK BLU

2544

Rear Wheel Steer Mode Select Switch 5V Reference

Steering Wheel Speed/Position Sensor


Object Number: 280793  Size: CH

Connector Part Information

    • 12052444
    • 8-Way F Micro-Pack 100 (BLK)

Pin

Wire Color

Circuit Number

Function

1

GRY

1056

Steering Wheel Position Sensor 5-Volt Reference

2

BLK

1835

Security System Sensor Low Reference

3

LT GRN

1763

Steering Wheel Position Sensor Phase A Signal

4

LT BLU

1764

Steering Wheel Position Sensor Phase B Signal

5

WHT

1765

Steering Wheel Position Marker Pulse Signal

6

LT BLU

1059

Steering Wheel Position Sensor Signal

7

BRN

41

Ignition 3 Voltage

8

BLK/WHT

1851

Ground