GM Service Manual Online
For 1990-2009 cars only
Table 1: Defogger Switch
Table 2: Rearview Mirror Map Lights

Defogger Switch


Object Number: 820109  Size: CH

Connector Part Information

    • 90980-10797
    • BLK

Pin

Wire Color

Function

1

GN

Illumination Lamps Supply Voltage

2

BU

Defogger Indicator Supply Voltage

3

WH/BK

Ground

4

WH/BK

Illumination Lamps Negative

5

--

Not Used

6

BK

Defogger Relay Control

Rearview Mirror Map Lights


Object Number: 820188  Size: CH

Connector Part Information

    • 90980-11794
    • BLK

Pin

Wire Color

Function

1

BK

Map Light Supply Voltage

2-5

--

Not Used

6

BK

Ground

7

--

Not Used