GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
1998
🢒
Sonoma Pickup - 4WD
🢒
Body and Accessories
🢒
Lighting Systems
🢒 Headlights/Daytime Running Lights (DRL) Schematics
Figure
1:
Cell 102: Headlamp Power Relay and Headlamp Ground Relay (All Except Envoy)
Lighting Systems Components
Headlights Circuit Description
Cell 102: DRL Relay (All Except Envoy)
Power Distribution Schematics
Power Distribution Schematics
Power Distribution Schematics
Fog Lights Schematics
Cell 102: DRL Relay (All Except Envoy)
Cell 102: DRL Relay (All Except Envoy)
Cell 102: DRL Relay (All Except Envoy)
Cell 102: DRL Relay (All Except Envoy)
Cell 102: DRL Relay (All Except Envoy)
Cell 102: DRL Relay (All Except Envoy)
Cell 102: DRL Relay (All Except Envoy)
Cell 102: DRL Relay (All Except Envoy)
Cell 102: DRL Relay (All Except Envoy)
Cell 102: DRL Relay (All Except Envoy)
Figure
2:
Cell 102: DRL Relay (All Except Envoy)
Lighting Systems Components
Headlights Circuit Description
Cell 102: High Beam Relay and Ambient Light Sensor (Envoy Only)
Cell 102: Headlamp Power Relay and Headlamp Ground Relay (All Except Envoy)
Power Distribution Schematics
Ground Distribution Schematics
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice
Cell 102: Headlamp Power Relay and Headlamp Ground Relay (All Except Envoy)
Cell 102: Headlamp Power Relay and Headlamp Ground Relay (All Except Envoy)
Cell 102: Headlamp Power Relay and Headlamp Ground Relay (All Except Envoy)
Cell 102: Headlamp Power Relay and Headlamp Ground Relay (All Except Envoy)
Cell 102: Headlamp Power Relay and Headlamp Ground Relay (All Except Envoy)
Cell 102: Headlamp Power Relay and Headlamp Ground Relay (All Except Envoy)
Cell 102: Headlamp Power Relay and Headlamp Ground Relay (All Except Envoy)
Cell 102: Headlamp Power Relay and Headlamp Ground Relay (All Except Envoy)
Cell 102: Headlamp Power Relay and Headlamp Ground Relay (All Except Envoy)
Cell 102: Headlamp Power Relay and Headlamp Ground Relay (All Except Envoy)
Figure
3:
Cell 102: High Beam Relay and Ambient Light Sensor (Envoy Only)
Lighting Systems Components
Headlights Circuit Description
Cell 102: Headlamp HID Ballast, DRL Relay and Low Beam Relay (Envoy Only)
Cell 102: DRL Relay (All Except Envoy)
Power Distribution Schematics
Power Distribution Schematics
Power Distribution Schematics
Handling ESD Sensitive Parts Notice
Ground Distribution Schematics
Cell 102: Headlamp HID Ballast, DRL Relay and Low Beam Relay (Envoy Only)
Cell 102: Headlamp HID Ballast, DRL Relay and Low Beam Relay (Envoy Only)
Cell 102: Headlamp HID Ballast, DRL Relay and Low Beam Relay (Envoy Only)
Cell 102: Headlamp HID Ballast, DRL Relay and Low Beam Relay (Envoy Only)
Figure
4:
Cell 102: Headlamp HID Ballast, DRL Relay and Low Beam Relay (Envoy Only)
Lighting Systems Components
Headlights Circuit Description
Cell 102: High Beam Relay and Ambient Light Sensor (Envoy Only)
Ground Distribution Schematics
Cell 102: High Beam Relay and Ambient Light Sensor (Envoy Only)
Cell 102: High Beam Relay and Ambient Light Sensor (Envoy Only)
Cell 102: High Beam Relay and Ambient Light Sensor (Envoy Only)
Cell 102: High Beam Relay and Ambient Light Sensor (Envoy Only)