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DTC B2279: Switch Illumination Circuit (Passenger's Door): Testing

WARNING: This page is about a different car, the 2000 Chevrolet Corvette and 1999 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
  1. If power door systems diagnostic system check has been performed, go to next step. If power door systems diagnostic system check has not been performed, go to POWER DOOR SYSTEMS DIAGNOSTIC SYSTEM CHECK  .
  2. Turn ignition off. Disconnect right door switch connector. Turn ignition on. Turn headlight switch on. Using scan tool, clear all RDCM DTCs. Recheck for DTCs. If DTC resets, go to next step. If DTC does not reset, go to step  5 .
  3. Check for short to ground or short to voltage in Gray wire between right door switch and RDCM. See appropriate wiring diagram in ILLUMINATION/INTERIOR LIGHTS article in WIRING DIAGRAMS. If circuits are okay, go to next step. If faulty circuit is found and repaired, go to step  6 .
  4. Replace RDCM. See DOOR CONTROL MODULE  under REMOVAL & INSTALLATION. After repairs, go to step  6 .
  5. Replace right door switch. See DOOR LOCK/UNLOCK SWITCH  under REMOVAL & INSTALLATION. After repairs, go to next step.
  6. Turn ignition off. Reconnect all disconnected components and connectors. Turn ignition on. Clear DTCs. See CLEARING DIAGNOSTIC TROUBLE CODES  under SELF-DIAGNOSTIC SYSTEM. If DTC resets, go to step  2 . If DTC does not reset, repair is complete.
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