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DTC B2234: Mirror Down Switch Fault

WARNING: This page is about a different car, the 2000 Chevrolet Corvette, 1999 Chevrolet Corvette, and 1998 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform DIAGNOSTIC SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM. Go to next step.
  2. Using scan tool, select LDCM input and observe mirror DOWN switch status. If scan tool displays ACTIVE, leave scan tool connected and go to next step. If scan tool displays INACTIVE, problem is intermittent. Check mirror up switch circuit wiring and connections. See WIRING DIAGRAMS  . If mirror up switch circuit checks okay, retest system. If DTC B2234 sets as a history code, go to step  5 .
  3. Disconnect left door switch connector. With LDCM input selected, observe mirror DOWN switch status. If scan tool displays ACTIVE, go to next step. If scan tool displays INACTIVE, replace power mirror switch. See POWER MIRROR SWITCH  under REMOVAL & INSTALLATION.
  4. Check for short to ground in Light Green wire between Left Door Control Module (LDCM) connector C4 terminal No. 5 and left door switch connector terminal No. 5. See Figure . See WIRING DIAGRAMS  . If Light Green wire is okay, go to next step.
  5. Replace LDCM. See DOOR CONTROL MODULE  under REMOVAL & INSTALLATION.
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