GM Service Manual Online
For 1990-2009 cars only
Figure 1:

Fog Lamp Relay, Front


Object Number: 538425  Size: FS
Lighting Systems Component Views
Fog Lights Circuit Description
Front Fog Lamps, LH/RH, and Fog Lamp Switch, Front
B+ Bus Bar
PARK LP, FR PRK, LR PRK, RR PRK, and TRL PRK Fuses
Front Fog Lamps, LH/RH, and Fog Lamp Switch, Front
PARK LP, FR PRK, LR PRK, RR PRK, and TRL PRK Fuses
ILLUM and PARK LP Fuses
Body Control System Connector End Views
Handling ESD Sensitive Parts Notice
Figure 2:

Front Fog Lamps, LH/RH, and Fog Lamp Switch, Front


Object Number: 538429  Size: FS
Lighting Systems Component Views
Fog Lights Circuit Description
Fog Lamp Relay, Rear
Power, Headlamp Switch, and Multifunction Switch
Fog Lamp Relay, Front
Body Control System Connector End Views
Handling ESD Sensitive Parts Notice
G200 and G201
G111 and G112
G200 and G201
G111 and G112
G111 and G112
Figure 3:

Fog Lamp Relay, Rear


Object Number: 538431  Size: FS
Lighting Systems Component Views
Fog Lights Circuit Description
Rear Fog Lamps, LH/RH, and Fog Lamp Switch, Rear
Front Fog Lamps, LH/RH, and Fog Lamp Switch, Front
B+ Bus Bar
PARK LP, FR PRK, LR PRK, RR PRK, and TRL PRK Fuses
Fog Lamp Relay, Front
PARK LP, FR PRK, LR PRK, RR PRK, and TRL PRK Fuses
ILLUM and PARK LP Fuses
Body Control System Connector End Views
Handling ESD Sensitive Parts Notice
B+ Bus Bar
Rear Fog Lamps, LH/RH, and Fog Lamp Switch, Rear
Power and Grounding Connector End Views
Figure 4:

Rear Fog Lamps, LH/RH, and Fog Lamp Switch, Rear


Object Number: 538434  Size: FS
Lighting Systems Component Views
Fog Lights Circuit Description
Fog Lamp Relay, Rear
Hazard Switch, TURN, and HAZ LP Fuses
Body Control System Connector End Views
Handling ESD Sensitive Parts Notice
G200 and G201
Power, Ground and BCM
G200 and G201
S320 and S420
G450