Section 794 (Lighting Systems)
WARNING: This page is about a different car, the 2003 GMC Safari and 2003 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic and Routing Diagrams
- Component Locator
- Diagnostic Information and Procedures
- Diagnostic Starting Point - Lighting Systems
- Diagnostic System Check - Lighting Systems
- Scan Tool Output Controls
- Scan Tool Data List
- Scan Tool Data Definitions
- Diagnostic Trouble Code (DTC) List
- DTC B1397: 5 Volt Reference Output Circuit Low
- DTC B1398: Output Reference Voltage High
- DTC B1480: Inadvertent Power Relay
- DTC B2575: Headlamp Relay Coil Supply Voltage Circuit Is Low
- DTC B2577: Headlamp Relay Coil Supply Voltage Circuit Is Low
- DTC B2585: Short To Ground In Interior Park Lamps Fused Supply Voltage Circuit Or An Open In Park Lamp Relay Control Circuit
- DTC B2613: Instrument Panel Lamp Fuse Supply Voltage 2 Circuit Shorted To Battery Voltage
- DTC B2617: Courtesy Lamp Relay Coil Control Circuit Open Or Shorted To Ground
- DTC B2618: Courtesy Lamp Relay Coil Control Circuit Is Shorted To Battery Voltage
- DTC B2647: Courtesy Lamp Relay Coil Control Circuit Is Open Or Shorted To Ground
- DTC B2648: Courtesy Lamp Relay Coil Control Circuit Is Shorted To The Battery
- Symptoms - Lighting Systems
- Backup Lamps Always On
- Backup Lamps Inoperative
- Courtesy Lamps Always On
- Courtesy Lamps Inoperative
- Daytime Running Lamps (DRL) Inoperative
- Daytime Running Lamps (DRL) On with Park Brake Applied
- Hazard Lamps Inoperative
- Headlamps Inoperative - High Beams
- Headlamps Inoperative - Low Beams
- Headlamps Inoperative - Low and High Beams
- Headlamps Inoperative in Low Light Conditions
- High Beam Indicator Always On
- High Beam Indicator Inoperative
- Interior Backlighting Does Not Dim
- Interior Backlighting Inoperative
- Instrument Panel (I/P) Compartment Lamp Inoperative
- Instrument Panel (I/P) Compartment Lamp Always On
- Marker Lamps Inoperative
- Park Lamps Inoperative
- Repeater Lamps Inoperative
- Stop Lamps Always On
- Stop Lamps Inoperative (Domestic)
- Stop Lamps Inoperative (Export)
- Tail Lamps Inoperative
- Tail, Marker, and License Lamps Always On
- Tail, Marker, and License Lamps Inoperative
- Turn Signal Lamps and/or Indicators Always On or Flashing
- Turn Signal Lamps and/or Indicators Inoperative
- Vanity Mirror Lamp(s) Inoperative
- Repair Instructions
- Stop Lamp Switch Replacement
- Headlamp Switch Replacement
- Door Jamb Switch Replacement - Front
- Door Jamb Switch Replacement - Rear
- Daytime Running Lamps (DRL) Ambient Light Sensor Replacement
- Daytime Running Lamps (DRL) Diode Replacement
- Hazard and Turn Signal Flasher Replacement
- Dome and Reading Lamp Bulb Replacement
- Courtesy Lamp/Reflector Replacement - Door
- Instrument Panel (I/P) Lamp Replacement
- Courtesy Lamp Replacement - Overhead Console
- Instrument Panel (I/P) Storage Compartment Lamp Replacement
- Vanity Mirror Lamp Replacement
- Dome Lamp Replacement
- Stepwell Lamp Replacement
- Headlamp Replacement - Sealed Beam
- Headlamp Replacement - Composite
- Headlamp Aiming
- Park/Turn Signal Lamp Replacement
- High Mounted Stop Lamp Replacement
- License Lamp Replacement
- Tail Lamp Replacement
- Description and Operation
- Special Tools and Equipment