DTC U1283: Keyless Access Control Unit Lost Communication With Passenger's MICU
WARNING: This page is about a different car, the 2010 Acura TL and 2009 Acura TL. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A
).
- Clear the DTCs with the HDS.
- Press the engine start/stop button to select the OFF, ACC, and ON mode.
- Wait for at least 6 seconds.
- Check for DTCs with the HDS.
Is DTC U1283 indicated?
YES -Go to the passenger's MICU input test, and do all power, ground, and communication input tests (see MICU INPUT TEST ). If the tests prove OK, replace the driver's under-dash fuse/relay box (see DRIVER'S UNDER-DASH FUSE/RELAY BOX (MICU) REMOVAL/INSTALLATION ).
NO -Intermittent failure, the system is OK at this time. Check for loose or poor connections at passenger's under-dash fuse/relay box connector A (33P) and the related units.