U1281

DTC Troubleshooting: U1281

DTC U1281:

Lost Communication With MICU (MICU frame)

1. Clear the DTCs with the HDS.

2. Turn the ignition switch to LOCK (0) and then back to ON (II).

3. Wait for at least 6 seconds.

4. Check for DTCs with the HDS.

Is DTC U1281 indicated?

YES -

Go to the MICU input test and do all power, ground, and communication input tests MICU Input Test. If the tests prove OK, replace the under-dash fuse/relay box.�

- USA models Under-Dash Fuse/Relay Box Removal And Installation (USA Models)
- Canada models Under-Dash Fuse/Relay Box Removal And Installation (Canada Models)

NO -

Intermittent failure, the system is OK at this time. Check for loose or poor connections at under-dash fuse/relay box connector Y (16P) and the related units.�