GM Service Manual Online
For 1990-2009 cars only

Interior Lights Schematics w/o V4U/B9Q

Figure 1:

Headlamp Switch, Park Lamp Relay


Object Number: 1411939  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Interior Lamp Relay, Headlamp Switch and Rear Door Courtesy Lamps
G200
G200
Class 2 Serial Data (1 of 3)
DIMR, LP PK R, and LP PK L Fuses and PRK LP Relay
Low Beam Headlamps (Domestic)
Headlamp Switch and Park Lamp Relay
Figure 2:

Interior Lamp Relay, Headlamp Switch, and Rear Door Courtesy Lamps


Object Number: 1412039  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Front Door Courtesy, Rear Compartment, and Underhood Lamps
Headlamp Switch and Park Lamp Relay
Rear Fuse Block Battery Voltage
Front Door Courtesy, Rear Compartment, and Underhood Lamps
Overhead Console, Vanity, and Courtesy Lamps
Front Door Courtesy, Rear Compartment, and Underhood Lamps
Front Door Courtesy, Rear Compartment, and Underhood Lamps
G200
G201 - 2 of 3
G201 - 2 of 3
G200
Figure 3:

Front Door Courtesy Lamps, Rear Compartment, and Underhood Lamps


Object Number: 1412040  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Overhead Console, Vanity, and Courtesy Lamps
Interior Lamp Relay, Headlamp Switch and Rear Door Courtesy Lamps
Interior Lamp Relay, Headlamp Switch and Rear Door Courtesy Lamps
Overhead Console, Vanity, and Courtesy Lamps
Overhead Console, Vanity, and Courtesy Lamps
Interior Lamp Relay, Headlamp Switch and Rear Door Courtesy Lamps
Interior Lamp Relay, Headlamp Switch and Rear Door Courtesy Lamps
G402 - 1 of 2
G402 - 1 of 2
Figure 4:

Overhead Console, Vanity and Courtesy Lamps


Object Number: 1412041  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Front Door Courtesy, Rear Compartment, and Underhood Lamps
Front Door Courtesy, Rear Compartment, and Underhood Lamps
Front Door Courtesy, Rear Compartment, and Underhood Lamps
G402 - 1 of 2
Interior Lamp Relay, Headlamp Switch and Rear Door Courtesy Lamps

Interior Lights Schematics w/ V4U/B9Q

Figure 1:

Door Opens Input ( V4U)


Object Number: 1412044  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Door Open Inputs (w/B9Q)
Class 2 Serial Data (3 of 3)
Class 2 Serial Data (2 of 3)
Figure 2:

Door Opens Inputs (B9Q)


Object Number: 1412045  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Interior Lamp Relay and Rear Door Courtesy Lamps
Door Open Inputs (w/ V4U)
Class 2 Serial Data (2 of 3)
Class 2 Serial Data (3 of 3)
G402 - 1 of 2
G201 - 3 of 3
G302 - 2 of 3
Figure 3:

Interior Lamp Relay and Rear Door Courtesy Lamps


Object Number: 1412046  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Front Door Courtesy, Rear Compartment, and Underhood Lamps
Door Open Inputs (w/B9Q)
Front Door Courtesy, Rear Compartment, and Underhood Lamps
Overhead Console, Vanity, and Courtesy Lamps
Front Door Courtesy, Rear Compartment, and Underhood Lamps
Overhead Console, Vanity, and Courtesy Lamps
Front Door Courtesy, Rear Compartment, and Underhood Lamps
Overhead Console, Vanity, and Courtesy Lamps
Front Door Courtesy, Rear Compartment, and Underhood Lamps
G200
G402 - 1 of 2
G402 - 1 of 2
G200
Figure 4:

Front Door Courtesy Lamps, Rear Compartment, and Underhood Lamps


Object Number: 1412048  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Overhead Console, Vanity, and Courtesy Lamps
Interior Lamp Relay and Rear Door Courtesy Lamps
Rear Fuse Block Battery Voltage
Interior Lamp Relay and Rear Door Courtesy Lamps
Overhead Console, Vanity, and Courtesy Lamps
Interior Lamp Relay and Rear Door Courtesy Lamps
Interior Lamp Relay and Rear Door Courtesy Lamps
Interior Lamp Relay and Rear Door Courtesy Lamps
G201 - 2 of 3
G201 - 2 of 3
Figure 5:

Overhead Console, Vanity and Courtesy Lamps


Object Number: 1412049  Size: FS
Master Electrical Component List
Interior Lighting Systems Description and Operation
Front Door Courtesy, Rear Compartment, and Underhood Lamps
Interior Lamp Relay and Rear Door Courtesy Lamps
Interior Lamp Relay and Rear Door Courtesy Lamps
G402 - 1 of 2
Interior Lamp Relay and Rear Door Courtesy Lamps
Front Door Courtesy, Rear Compartment, and Underhood Lamps