Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2001CHEVY EXPRESS G2500, VAN PASSENGER EXTENDED, 5.0 MREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 451 (LIGHTING SYSTEMS)
2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 M
Section 451 (Lighting Systems)
2001 Chevrolet Chevy Express G2500, Van Passenger Extended, 5.0 MSECTION Section 451 (Lighting Systems)
WARNING: This page is about a different car, the 2003 Pontiac Aztek and 2003 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
- Specifications
- Schematic & Routing Diagrams
- Component Locator
- Diagnostic Information & Procedures
- Diagnostic Starting Point - Lighting Systems
- Diagnostic System Check - Lighting Systems
- Scan Tool Output Control
- Scan Tool Data List
- Scan Tool Data Definitions
- Diagnostic Trouble Code List
- DTC B1354: Open In Controlled Ground Circuit Of Courtesy Lamps
- DTC B1397: Short To Ground Or An Open In The Dimming Reference Voltage Circuit
- DTC B1398: Short To Battery Positive Voltage In The Dimming Reference Voltage Circuit
- DTC B1482: Low Instrument Panel Lamps Supply Voltage Circuit Or Courtesy Lamp Supply Voltage Circuit
- DTC B2532: Short To Ground Or An Open In Control Circuit Of The Fog Lamp Relay
- DTC B2533: Short To Battery Positive Voltage In Control Circuit Of Fog Lamps Relay
- DTC B2577: Short To Ground Or Open In Control Circuit Of Headlamp Relay Coil, Or Low Beam Headlamp Control Circuit Relay
- DTC B2578: Short To Voltage In Headlamp Relay Control Circui,T Or Low Beam Headlamp Relay Control Circuit
- DTC B2587: Short To Ground Or An Open In Control Circuit Of Park Lamp Relay Coil
- DTC B2588: Short To Battery Positive Voltage In The Control Circuit Of The Park Lamp Relay
- DTC B2602: Short To Ground Or An Open In The Control Circuit Of The DRL Relay Coil
- DTC B2603: Short To Battery Positive Voltage In The Control Circuit Of The DRL Relay Coil
- DTC B2613: IP Dimmer Switch Circuit
- DTC B2617: Short To Ground In The Courtesy Lamps Supply Voltage Circuit
- DTC B2618: Short To Voltage In The Courtesy Lamps Supply Voltage Circuit
- DTC B2627: Instrument Panel Lamps Supply Voltage Circuit Or Courtesy Lamp Supply Voltage Circuit Low
- DTC B2628: Short To Voltage In The Instrument Panel Lamps Supply Voltage Circuit
- DTC B2645: Short To Battery Positive Voltage In The Ambient Light Sensor Reference Voltage Circuit
- DTC B2647: DRL Ambient Light Sensor Circuit
- DTC B2648: Short To Battery Positive Voltage, Or Open DRL Ambient Light Sensor Low Reference Circuit
- DTC B2665: Short To Ground In The Headlamps Signal Circuit
- DTC B2742: Short To Ground In The Signal Circuit Of The Fog Lamp Switch
- DTC B3840: Open Or A Short To Ground In The Park Lamp Supply Voltage Circuit
- DTC B3841: Short To Voltage In The Park Lamp Supply Voltage Circuit
- DTC B3857: Short To Voltage, Short To Ground Or An Open In The High Beam Headlamp Signal Circuit
- Symptoms - Lighting Systems
- Symptom List
- Notes
- Backup Lamps Always On
- Backup Lamps Inoperative
- Courtesy Lamps Always On
- Courtesy Lamps Inoperative
- Daytime Running Lamps (DRL) Inoperative
- Fog Lamps Always On
- Fog Lamps Inoperative
- Hazard Lamps Always On
- Hazard Lamps Inoperative
- Headlamps Always On - Low or High Beams
- Headlamps Inoperative - High Beams
- Headlamps Inoperative - Low Beams
- Headlamps Inoperative - Low & High Beams
- High Beam Indicator Inoperative
- Illuminated Entry Lamps Inoperative
- Interior Backlighting Inoperative
- Interior Lamps Off Switch Inoperative
- Lighting Systems
- Park Lamps Inoperative
- Park Lamps Out Indicator Inoperative
- Park Lamps Inoperative - Output at Trailer/Uplifter Connector
- Reading Lamp(s) Inoperative
- Stop Lamps Always On
- Stop Lamps Inoperative
- Turn Signal Lamps and/or Indicator Inoperative
- Turn Signal Lamps Inoperative - Output At Trailer/Upfitter Connector
- Repair Instructions
- Stop Lamp Switch Adjustment
- Stop Lamp Switch Replacement
- Headlamp Switch Replacement
- Fog Lamp Switch Replacement - Front
- Daytime Running Lamps (DRL) Ambient Light Sensor Replacement
- Hazard & Turn Signal Flasher Replacement
- Console Lamp Replacement
- Courtesy Lamp Replacement - Instrument Panel - Left
- Courtesy Lamp Replacement - Instrument Panel - Right
- Instrument Panel (I/P) Compartment Lamp Switch Replacement
- Vanity Mirror Lamp Bulb Replacement
- Headlamp Assembly or Headlamp Bulb Replacement (Aztek)
- Headlamp Assembly or Headlamp Bulb Replacement (Rendezvous)
- Headlamp Aiming (Aztek)
- Headlamp Aiming (Rendezvous)
- Fog Lamp Replacement - Front (Aztek)
- Fog Lamp Replacement - Front (Rendezvous)
- Fog Lamp Aiming Procedure
- Park/Turn Signal Lamp Replacement (Aztek)
- Park/Turn Signal Lamp Replacement (Rendezvous)
- High Mounted Stop Lamp Replacement (Aztek)
- High Mounted Stop Lamp Replacement (Rendezvous)
- Cargo Lamp Replacement
- Backup Lamp Replacement
- License Lamp Replacement (Aztek)
- License Lamp Replacement (Rendezvous)
- Tail Lamp Assembly And/Or Backup, Sidemarker, Stop, Turn Signal Bulb Replacement (Aztek)
- Tail Lamp Assembly And/Or Backup, Sidemarker, Stop, Turn Signal Bulb Replacement (Rendezvous)
- Roof Side Rail Lamp Replacement
- Description & Operation
- Exterior Lighting Systems Description and Operation
- Interior Lighting Systems Description and Operation
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.