GM Service Manual Online
For 1990-2009 cars only
Table 1: Rear Defogger C1
Table 2: Rear Defogger C2
Table 3: Inside Rearview Mirror (ISRVM)

Rear Defogger C1


Object Number: 1283119  Size: CH

Connector Part Information

    • 520961-1
    • 1-Way (BK)

Pin

Wire Color

Circuit Number

Function

A

BK

293

Defogger Relay Control

Rear Defogger C2


Object Number: 1283119  Size: CH

Connector Part Information

    • 520961-1
    • 1-Way (BK)

Pin

Wire Color

Circuit Number

Function

A

BK

750

Ground

Inside Rearview Mirror (ISRVM)


Object Number: 872580  Size: CH

Connector Part Information

    • 917981-2
    • 16-Way F Housing Hybrid I/O (BK)

Pin

Wire Color

Circuit Number

Function

1-5

--

--

Not Used

6

L-GN/BK

735

Ambient Air Temperature Sensor Signal (w/DH3)

7

GY

720

Low Reference

8

BK

750

Ground

9

L-GN

24

Backup Lamps Supply Voltage

10

--

--

Not Used

11

D-GN/WH

2514

Keypad Signal (w/UE1)

12

L-GN/BK

2515

Keypad Supply Voltage (w/UE1)

13

YE

43

Accessory Voltage

14

YE/BK

2516

Keypad Green LED Signal (w/UE1)

15

BN/WH

2517

Keypad Red LED Signal (w/UE1)

16

--

--

Not Used