B1080

DTC B1080: Power Supply Circuit (IG1 line) Input Error for Relay Control Module and MICU

1. Clear the DTCs using the HDS
2. Cycle the ignition switch to OFF and then back ON
3. Turn the ignition switch ON (II) and wait for 2 seconds or more.

Is DTC B1080 indicated again?

YES - Go to step 4.

NO - Intermittent failure, the relay control module is OK at this time. Check for loose or poor connections. If the connections are good, check the battery condition and the charging system.

4. Check the MICU IG1 power supply No.21 (75 A) fuse in the under-dash fuse/relay box.

Is the fuse OK?

YES - Go to MICU Input Test.

NO - Replace the fuse and recheck for DTCs.