DTC U1286: Gauge Control Module Lost Communication with Keyless Access Control Unit
WARNING: This page is about a different car, the 2011 Acura TL, 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, ON, and OFF mode
- Wait for at least 6 seconds
- Check for DTCs with the HDS
Is DTC U1286 indicated?
YES -Go to the keyless access control unit input test, and do all power, ground, and communication input tests (see CONTROL UNIT INPUT TEST ) If the tests prove OK, replace the keyless access control unit (see CONTROL UNIT INPUT TEST )
NO -Intermittent failure, the system is OK at this time Check for loose or poor connections at keyless access control unit connector B (32P) and the related units