DTC B1555: Automatic Lighting Control Unit Lost Communication with Combination Switch Control Unit (AUTOLT Message)
WARNING: This page is about a different car, the 2008 Acura TL and 2007 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.
- Turn the ignition switch OFF, and then back ON (II).
- Check for DTCs with the HDS.
Is DTC B1555 indicated?
YES -Go to step 4.
NO -Intermittent failure. The gauge control system is OK at this time. Check pinfits and connections.
- Check for DTCs with the HDS.
Are DTCs B1007, B1062 or B1155 also indicated?
YES -Go to Combination Switch Control Unit Input Test (see COMBINATION SWITCH CONTROL UNIT INPUT TEST ).
NO -Go to Automatic Lighting Control Unit Input Test (see AUTOMATIC LIGHTING CONTROL UNIT INPUT TEST ).