DTC B1605: Keyless Access Control Unit Lost Communication with MICU (MICU Message)
- Clear the DTCs with the HDS.
- Touch the door outer handle switch to lock the door.
- Check for DTCs with the HDS.
Is DTC B1605 indicated?
YES - Go to step 4.
NO - Intermittent failure, the system is OK at this time. Check for loose or poor connections.
- Check for DTCs with the HDS.
Are DTCs B1055, B1157, B1255, B1806, B2107, and B2155 also indicated?
YES - Do the MICU input test (see MICU INPUT TEST ).
NO - Replace the keyless access control unit.