DTC B1800: Communication Bus Line Error (BUS Off)
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 B1800 indicated?
YES -Go to step 4.
NO -Intermittent failure, the system is OK at this time. Check for loose or poor connections at power seat control unit connector A (20P), and at under-dash fuse/relay box connector G (6P).
- Check for DTCs with the HDS.
Is DTC B1000 indicated?
YES -Troubleshoot DTC B1000.
NO -If the B1800 is indicated, replace the power seat control unit.