DTC B1601: Keyless Access Control Unit Internal (CPU) Error; DTC B1602: Keyless Access Control Unit Internal (EEPROM) Error
- Disconnect the battery terminal for 10 seconds to clear the DTCs, then reconnect the battery terminal.
- Touch the door outer handle switch to lock the door.
- Touch the door outer handle switch to unlock the door.
- Connect the HDS to the data link connector.
- Turn the ignition switch OFF, and then back ON (II).
- Check for DTCs with the HDS.
Is DTC B1601 and/or B1602 indicated?
YES - Replace the keyless access control unit.
NO - Intermittent failure, the system is OK at this time. Check for loose or poor connections.