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Home >> Acura >> 2007 >> RL >> Repair and Diagnosis >> External Pages >> Different car >> Section 79 (ONSTAR System) >> DTC Troubleshooting >> DTC B1402 (1-2): Onstar Control Unit Internal Error (EEPROM Error) >> '05-06 models
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'05-06 models

WARNING: This page is about a different car, the 2006 Acura RL and 2005 Acura RL. However, it is still accessible from the selected car via links, so may be relevant.
  1. Delete the DTCs (see DELETE DTC MODE ('05-06 MODELS)  ).
  2. Turn the ignition switch to LOCK (0), and then back ON (II).
  3. Check for DTCs (see SELF-DIAGNOSTIC FUNCTION  ).

    Is DTC B1402 (1-2) indicated? 

    YES  - Replace the OnStar control unit.

    NO  - Intermittent failure. The system is OK at this time. Check for loose or poor connections.