GM Service Manual Online
For 1990-2009 cars only

Description

Module

DTC B2575 Headlamp Request/Feedback Mismatch in Lighting Systems

BCM

DTC B2577 Headlamp Control Circuit Low in Lighting Systems

BCM

DTC B2578 Headlamp Relay Output Short to Battery in Lighting Systems

BCM

DTC B2585 Parklamp Control Circuit Malfunction in Lighting Systems

BCM

DTC B2587 Parklamp Relay Output Short to Ground/Op in Lighting Systems

BCM

DTC B2588 Parklamp Relay Output Short to Battery in Lighting Systems

BCM

DTC B2600 DRL Error in Lighting Systems

BCM

DTC B2601 DRL Stuck in Lighting Systems

BCM

DTC B2602 DRL Relay Output Short to Ground/Open in Lighting Systems

BCM

DTC B2603 DRL Relay Output Short to Battery in Lighting Systems

BCM

DTC B2648 Ambient Light Sensor Circuit High in Lighting Systems

BCM

PXXXX

Refer to Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 2.4L or Powertrain On Board Diagnostic (OBD) System Check in Engine Controls - 3.4L

PCM