B2555 02 (2) Chevrolet Silverado 2500 HD

When this DTC is present, the door courtesy lamps will be inoperative.

Conditions for Clearing the DTC

1. The condition responsible for setting the DTC no longer exists.
2. A scan tool CLEAR DTCs command is issued for that switch module.
3. A history DTC will clear once 100 consecutive malfunction-free ignition cycles have occurred.

Reference Information

Schematic Reference

Interior Lights Schematics

Connector End View Reference

Lighting Systems Connector End Views

Electrical Information Reference

1. «Circuit Testing»(ref-278019-S01379251932008012100000)
2. «Connector Repairs»(ref-278019-S06982211772008012100000)
3. «Testing for Intermittent Conditions and Poor Connections»(ref-278019-S21810776732008012100000)
4. «Wiring Repairs»(ref-278019-S25320832652008012100000)

Scan Tool Reference

1. «Scan Tool Output Controls»(ref-277990-S26654000102008012100000)
2. «Scan Tool Data List»(ref-277990-S24476710372008012100000)
3. «Scan Tool Data Definitions»(ref-277990-S11026152172008012100000)