DTC U1280: Keyless Access Control Unit Communication Bus Line Error (BUS-OFF) (Keyless Access Control Unit)

NOTE:  If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A - Refer to: Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode A - Initial Communication and DTC Checks (2015-17), or Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode A - Initial Communication and DTC Checks (2018-19) .

DTC (Keyless Access Control Unit)

1. Problem verification

   -1. Clear the DTCs with the HDS.

   - 2. Turn the vehicle to the OFF (LOCK) mode and then the ON mode.

   - 3. Wait for at least 6 seconds.

   - 4. Check for DTCs with the HDS.

   DTC Description	DTC
   U1280 Keyless access control unit communication bus line error (BUS-OFF)

   Is DTC U1280 indicated?

   YES 

   Go to MICU DTC U1280 troubleshooting - Refer to: DTC Troubleshooting: U1280 (MICU) (2015-17) or DTC Troubleshooting: U1280 (MICU) (2018-19) .

   NO 

   Intermittent failure, the system is OK at this time. Check for loose or poor connections.