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

Headlamp Switch and Park Lamp Control


Object Number: 559767  Size: FS
Lighting Systems Components
Exterior Lights Circuit Description
LH Park Lamps
Underhood Fuse Block, RUN/CRANK Fuse and IGN-1 Relay
Underhood Fuse Block and Underhood Maxi-Fuse Block
Underhood Fuse Block, PCM, ABS, HAZARD, FUEL PUMP, PARKLMP Fuses And Fuel Pump Relay
Underhood Fuse Block, OXYGEN SENSOR and IGN-1 Fuses
Underhood Fuse Block, PCM, ABS, HAZARD, FUEL PUMP, PARKLMP Fuses And Fuel Pump Relay
Handling ESD Sensitive Parts Notice
Dimming Control: Passenger Temperature Control, Ashtray, and Heated Seat Switches Backlighting
LH Park Lamps
RH Park Lamps
G202, 2 of 4
G202, 1 of 4
Figure 2:

LH Park Lamps


Object Number: 559770  Size: FS
Lighting Systems Components
Exterior Lights Circuit Description
RH Park Lamps
Headlamp Switch and Park Lamp Control
Headlamp Switch and Park Lamp Control
Stop Lamps
LH Turn Lamps
Handling ESD Sensitive Parts Notice
LH Turn Lamps
G306 and G402
G104 and G106
LH Turn Lamps
G202, 4 of 4
Figure 3:

RH Park Lamps


Object Number: 559773  Size: FS
Lighting Systems Components
Exterior Lights Circuit Description
Rear Compartment Lid Park Lamps
LH Park Lamps
Headlamp Switch and Park Lamp Control
RH Turn Lamps
Rear Compartment Lid Park Lamps
Stop Lamps
RH Turn Lamps
RH Turn Lamps
G105
Handling ESD Sensitive Parts Notice
G400, 1 of 2
Figure 4:

Rear Compartment Lid Park Lamps


Object Number: 559776  Size: FS
Lighting Systems Components
Exterior Lights Circuit Description
Turn Signal/Hazard Switch and Cornering Lamps
RH Park Lamps
RH Park Lamps
Stop Lamps
LH Turn Lamps
Stop Lamps
RH Turn Lamps
G400, 1 of 2
G400, 1 of 2
Figure 5:

Turn Signal/Hazard Switch and Cornering Lamps


Object Number: 559780  Size: FS
Lighting Systems Components
Exterior Lights Circuit Description
LH Turn Lamps
Rear Compartment Lid Park Lamps
Underhood Fuse Block and Underhood Maxi-Fuse Block
Underhood Fuse Block, TURN, A/C Fuses and A/C Relay
G202, 1 of 4
Handling ESD Sensitive Parts Notice
G202, 3 of 4
G202, 1 of 4
G202, 4 of 4
G105
G104 and G106
Figure 6:

LH Turn Lamps


Object Number: 559783  Size: FS
Lighting Systems Components
Exterior Lights Circuit Description
RH Turn Lamps
Turn Signal/Hazard Switch and Cornering Lamps
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
LH Park Lamps
LH Park Lamps
G400, 1 of 2
Rear Compartment Lid Park Lamps
LH Park Lamps
G104 and G106
G105
G306 and G402
Figure 7:

RH Turn Lamps


Object Number: 559785  Size: FS
Lighting Systems Components
Exterior Lights Circuit Description
Stop Lamps
LH Turn Lamps
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
RH Park Lamps
Rear Compartment Lid Park Lamps
RH Park Lamps
RH Park Lamps
G400, 2 of 2
G400, 1 of 2
G105
Figure 8:

Stop Lamps


Object Number: 559787  Size: FS
Lighting Systems Components
Exterior Lights Circuit Description
RH Turn Lamps
Underhood Fuse Block, BLOWER and BRAKE Fuses, Low Fan and Horn Relays
Indicators and Stoplamp Switch
Rear Compartment Lid Park Lamps
Rear Compartment Lid Park Lamps
RH Park Lamps
LH Park Lamps
G400, 1 of 2
G400, 2 of 2
G306 and G402