GM Service Manual Online
For 1990-2009 cars only

Exterior Lights Schematics Domestic w/o V92/V4U/B9Q

Figure 1:

Headlamp Switch, Park Lamp Relay


Object Number: 493930  Size: FS
Lighting Systems Components
Exterior Lights Circuit Description
Turn/Hazard Flasher Module, Hazard Switch
Handling ESD Sensitive Parts Notice
Low Beam Headlamps
Rear Fuse Block Battery Voltage
Serial Data Class 2 (1 of 3)
G201 - Steering Column CKT 451
G201 - Steering Column CKT 451
Front Park/Turn and Side Marker Lamps
RH Tail Lamp
Front Park/Turn and Side Marker Lamps
LH Tail Lamp
License and Cornering Lamps
Figure 2:

Turn/Hazard Flasher Module, Hazard Switch


Object Number: 493935  Size: FS
Lighting Systems Components
Exterior Lights Circuit Description
RH Tail Lamp
Headlamp Switch, Park Lamp Relay
Handling ESD Sensitive Parts Notice
SIR, VENT SOL, and IGN 1 Fuses
RR BLO, RRDR MDL, HVAC BLO, STOP LP, IGN SW, and TSIG/HAZ Fuses
Instrument Panel Dimming
Front Park/Turn and Side Marker Lamps
G201 - Steering Column CKT 451
G201 - Steering Column CKT 451
Front Park/Turn and Side Marker Lamps
SIR, VENT SOL, and IGN 1 Fuses
Figure 3:

RH Tail Lamp


Object Number: 493939  Size: FS
Lighting Systems Components
Exterior Lights Circuit Description
LH Tail Lamp
Turn/Hazard Flasher Module, Hazard Switch
Handling ESD Sensitive Parts Notice
Headlamp Switch, Park Lamp Relay
LH Tail Lamp
Cruise Control Module PCM Inputs and Vehicle Speed Input
PWR, GND, Stoplamp Switch, Solenoid Valves, and Pump Motor
G402 - Backup Lamps
G402 - Backup Lamps
G401
RR BLO, RRDR MDL, HVAC BLO, STOP LP, IGN SW, and TSIG/HAZ Fuses
Figure 4:

LH Tail Lamp


Object Number: 493942  Size: FS
Lighting Systems Components
Exterior Lights Circuit Description
Front Park/Turn and Side Marker Lamps
RH Tail Lamp
Handling ESD Sensitive Parts Notice
Headlamp Switch, Park Lamp Relay
RH Tail Lamp
G402 - Fuel Sender and Other Items
Figure 5:

Front Park/Turn and Side Marker Lamps


Object Number: 493946  Size: FS
Lighting Systems Components
Exterior Lights Circuit Description
License and Cornering Lamps
LH Tail Lamp
Handling ESD Sensitive Parts Notice
Headlamp Switch, Park Lamp Relay
Headlamp Switch, Park Lamp Relay
G104 - Relays, Horns and Other Items
Turn/Hazard Flasher Module, Hazard Switch
Figure 6:

License and Cornering Lamps


Object Number: 493950  Size: FS
Lighting Systems Components
Exterior Lights Circuit Description
Front Park/Turn and Side Marker Lamps
Dimming Control
Headlamp Switch, Park Lamp Relay
G402 - Backup Lamps
G402 - Backup Lamps
G104 - Lamps and Other Items

Exterior Lights Schematics w/V92

Figure 1:

Headlamp Switch, Park Lamp Relay


Object Number: 493930  Size: FS
Lighting Systems Components
Exterior Lights Circuit Description
Turn/Hazard Flasher Module, Hazard Switch
Low Beam Headlamps
Handling ESD Sensitive Parts Notice
Rear Fuse Block Battery Voltage
Serial Data Class 2 (1 of 3)
G201 - Steering Column CKT 451
G201 - Steering Column CKT 451
License and Cornering Lamps
LH Tail Lamp
Front Park/Turn and Side Marker Lamps
RH Tail Lamp
Front Park/Turn and Side Marker Lamps
Figure 2:

Turn/Hazard Flasher Module, Hazard Switch


Object Number: 493935  Size: FS
Lighting Systems Components
Exterior Lights Circuit Description
RH Tail Lamp
Headlamp Switch, Park Lamp Relay
Handling ESD Sensitive Parts Notice
SIR, VENT SOL, and IGN 1 Fuses
SIR, VENT SOL, and IGN 1 Fuses
RR BLO, RRDR MDL, HVAC BLO, STOP LP, IGN SW, and TSIG/HAZ Fuses
Front Park/Turn and Side Marker Lamps
G201 - Steering Column CKT 451
G201 - Steering Column CKT 451
Front Park/Turn and Side Marker Lamps
Instrument Panel Dimming
Figure 3:

RH Tail Lamp


Object Number: 493939  Size: FS
Lighting Systems Components
Exterior Lights Circuit Description
LH Tail Lamp
Turn/Hazard Flasher Module, Hazard Switch
Handling ESD Sensitive Parts Notice
Headlamp Switch, Park Lamp Relay
RR BLO, RRDR MDL, HVAC BLO, STOP LP, IGN SW, and TSIG/HAZ Fuses
PWR, GND, Stoplamp Switch, Solenoid Valves, and Pump Motor
Cruise Control Module PCM Inputs and Vehicle Speed Input
G402 - Backup Lamps
G402 - Backup Lamps
G401
LH Tail Lamp
Figure 4:

LH Tail Lamp


Object Number: 493955  Size: FS
Lighting Systems Components
Exterior Lights Circuit Description
Front Park/Turn and Side Marker Lamps
RH Tail Lamp
Handling ESD Sensitive Parts Notice
Headlamp Switch, Park Lamp Relay
RH Tail Lamp
G402 - Fuel Sender and Other Items
Figure 5:

Front Park/Turn and Side Marker Lamps


Object Number: 493946  Size: FS
Lighting Systems Components
Exterior Lights Circuit Description
License and Cornering Lamps
LH Tail Lamp
Handling ESD Sensitive Parts Notice
Headlamp Switch, Park Lamp Relay
Headlamp Switch, Park Lamp Relay
Turn/Hazard Flasher Module, Hazard Switch
G104 - Relays, Horns and Other Items
Figure 6:

License and Cornering Lamps


Object Number: 493950  Size: FS
Lighting Systems Components
Exterior Lights Circuit Description
Front Park/Turn and Side Marker Lamps
G104 - Lamps and Other Items
G402 - Backup Lamps
G402 - Backup Lamps
Dimming Control
Headlamp Switch, Park Lamp Relay

Exterior Lights Schematics w/V4U/B9Q

Figure 1:

Headlamp Switch, Park Lamp Relay


Object Number: 493930  Size: FS
Lighting Systems Components
Exterior Lights Circuit Description
Turn/Hazard Flasher Module, Hazard Switch
Handling ESD Sensitive Parts Notice
Serial Data Class 2 (1 of 3)
G201 - Steering Column CKT 451
G201 - Steering Column CKT 451
Front Park/Turn and Side Marker Lamps
RH Tail Lamp
Front Park/Turn and Side Marker Lamps
LH Tail Lamp
License and Cornering Lamps
Rear Fuse Block Battery Voltage
Low Beam Headlamps
Figure 2:

Turn/Hazard Flasher Module, Hazard Switch


Object Number: 493935  Size: FS
Lighting Systems Components
Exterior Lights Circuit Description
RH Tail Lamp
Headlamp Switch, Park Lamp Relay
Handling ESD Sensitive Parts Notice
SIR, VENT SOL, and IGN 1 Fuses
SIR, VENT SOL, and IGN 1 Fuses
RR BLO, RRDR MDL, HVAC BLO, STOP LP, IGN SW, and TSIG/HAZ Fuses
G201 - Steering Column CKT 451
G201 - Steering Column CKT 451
Front Park/Turn and Side Marker Lamps
Instrument Panel Dimming
Front Park/Turn and Side Marker Lamps
Figure 3:

RH Tail Lamp


Object Number: 493939  Size: FS
RR BLO, RRDR MDL, HVAC BLO, STOP LP, IGN SW, and TSIG/HAZ Fuses
Headlamp Switch, Park Lamp Relay
Lighting Systems Components
Exterior Lights Circuit Description
LH Tail Lamp
Turn/Hazard Flasher Module, Hazard Switch
Handling ESD Sensitive Parts Notice
Cruise Control Module PCM Inputs and Vehicle Speed Input
PWR, GND, Stoplamp Switch, Solenoid Valves, and Pump Motor
G402 - Backup Lamps
G402 - Backup Lamps
G401
G302-V4U/B9Q
LH Tail Lamp
Figure 4:

LH Tail Lamp


Object Number: 523436  Size: FS
RH Tail Lamp
Headlamp Switch, Park Lamp Relay
Lighting Systems Components
Exterior Lights Circuit Description
Front Park/Turn and Side Marker Lamps
RH Tail Lamp
Handling ESD Sensitive Parts Notice
G302-V4U/B9Q
G402 - Fuel Sender and Other Items
Figure 5:

Front Park/Turn and Side Marker Lamps


Object Number: 493946  Size: FS
Headlamp Switch, Park Lamp Relay
Headlamp Switch, Park Lamp Relay
Lighting Systems Components
Exterior Lights Circuit Description
License and Cornering Lamps
LH Tail Lamp
Handling ESD Sensitive Parts Notice
Turn/Hazard Flasher Module, Hazard Switch
G104 - Relays, Horns and Other Items
Figure 6:

License and Cornering Lamps


Object Number: 493950  Size: FS
Lighting Systems Components
Exterior Lights Circuit Description
Front Park/Turn and Side Marker Lamps
Dimming Control
G402 - Backup Lamps
G402 - Backup Lamps
G104 - Lamps and Other Items
Headlamp Switch, Park Lamp Relay

Exterior Lights Schematics Export

Figure 1:

Headlamp Switch, Park Lamp Relay


Object Number: 498575  Size: FS
Lighting Systems Components
Exterior Lights Circuit Description
Turn/Hazard Flasher Module, Hazard Switch
Handling ESD Sensitive Parts Notice
Standing and Position Lamp Relays
Standing and Position Lamp Relays
License and Cornering Lamps
Low Beam Headlamps
Rear Fuse Block Battery Voltage
Serial Data Class 2 (1 of 3)
Standing and Position Lamp Relays
Standing and Position Lamp Relays
G201 - Steering Column CKT 451
G201 - Steering Column CKT 451
Figure 2:

Turn/Hazard Flasher Module, Hazard Switch


Object Number: 493935  Size: FS
Lighting Systems Components
Exterior Lights Circuit Description
Tail Lamps
Headlamp Switch, Park Lamp Relay
Handling ESD Sensitive Parts Notice
SIR, VENT SOL, and IGN 1 Fuses
RR BLO, RRDR MDL, HVAC BLO, STOP LP, IGN SW, and TSIG/HAZ Fuses
SIR, VENT SOL, and IGN 1 Fuses
Instrument Panel Dimming
Front Park/Turn and Repeater Lamps
Front Park/Turn and Repeater Lamps
G201 - Steering Column CKT 451
G201 - Steering Column CKT 451
Figure 3:

Tail Lamps


Object Number: 498578  Size: FS
RR BLO, RRDR MDL, HVAC BLO, STOP LP, IGN SW, and TSIG/HAZ Fuses
Standing and Position Lamp Relays
G402 - Backup Lamps
G402 - Backup Lamps
Standing and Position Lamp Relays
Cruise Control Module PCM Inputs and Vehicle Speed Input
Lighting Systems Components
Exterior Lights Circuit Description
Front Park/Turn and Repeater Lamps
Turn/Hazard Flasher Module, Hazard Switch
Figure 4:

Front Park/Turn and Repeater Lamps


Object Number: 498580  Size: FS
Lighting Systems Components
Exterior Lights Circuit Description
Standing and Position Lamp Relays
Tail Lamps
Handling ESD Sensitive Parts Notice
G104 - Lamps and Other Items
G104 - Relays, Horns and Other Items
Turn/Hazard Flasher Module, Hazard Switch
Figure 5:

Standing and Position Lamp Relays


Object Number: 498582  Size: FS
Lighting Systems Components
Exterior Lights Circuit Description
License and Cornering Lamps
Front Park/Turn and Repeater Lamps
Handling ESD Sensitive Parts Notice
Tail Lamps
Headlamp Switch, Park Lamp Relay
Tail Lamps
Headlamp Switch, Park Lamp Relay
G104 - Relays, Horns and Other Items
G104 - Relays, Horns and Other Items
AUDIO AMP and EXP LTG/LK Fuses
AUDIO AMP and EXP LTG/LK Fuses
Headlamp Switch, Park Lamp Relay
Figure 6:

License and Cornering Lamps


Object Number: 493950  Size: FS
Lighting Systems Components
Exterior Lights Circuit Description
Standing and Position Lamp Relays
Headlamp Switch, Park Lamp Relay
Dimming Control
G402 - Backup Lamps
G104 - Lamps and Other Items