DTC U0199: Immobilizer-keyless Control Unit Lost Communication with Door Multiplex Control Unit
WARNING: This page is about a different car, the 2011 Honda Pilot, 2010 Honda Pilot, and 2009 Honda Pilot. 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 to LOCK (0) and then back to ON (II).
- Wait for 6 seconds.
- Check for DTCs with the HDS.
Is DTC U0199 indicated?
YES - Go to the power window master switch input test, and do all power, ground, and communication input tests (see POWER WINDOW MASTER SWITCH INPUT TEST ). If the tests prove OK, replace the power window master switch (see REAR POWER WINDOW SWITCH TEST/REPLACEMENT ). ■
NO - Intermittent failure, the system is OK at this time. Check for loose or poor connections at the power window master switch and the related units. ■