DTC B1080: Power Supply Circuit (IG1 line) Input Error for Relay Control Module and MICU
WARNING: This page is about a different car, the 2008 Acura TSX, 2007 Acura TSX, 2006 Acura TSX, 2005 Acura TSX, and 2004 Acura TSX. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
If you are troubleshooting multiple DTC's, 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 using the HDS.
- Cycle the ignition switch to OFF, and then back ON.
- Turn the ignition switch ON (II) and wait for 2 seconds or more.
Is DTC F31080 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 (see BATTERY TEST ) and the charging system (see CHARGING SYSTEM INDICATOR CIRCUIT TROUBLESHOOTING ).
- Check the MICU IG1 power supply No. 21 (7.5 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.