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DTC B2783: Pass-Key(R) II Code/Password Corrupted: Testing

  1. Check for DTCs. If any other DTC exists, diagnose and repair it first. If no other DTC exists, go to next step.
  2. Check for proper connections at IPC connectors. If connections are okay, replace IPC. See INSTRUMENT PANEL CLUSTER (IPC)  under REMOVAL & INSTALLATION. Perform IPC DIAGNOSTIC SYSTEM CHECK .
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