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Home >> Honda >> 2014 >> Pilot EX, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 121 (Under-Hood Fuse/Relay Box) >> DTC Troubleshooting >> DTC B1056: Relay Control Module Lost Communication With MICU (Alarm Message)

DTC B1056: Relay Control Module Lost Communication With MICU (Alarm Message)

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2014 Honda Ridgeline, 2013 Honda Ridgeline, 2012 Honda Ridgeline, 2011 Honda Ridgeline, and 2010 Honda Ridgeline. 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 ).
  1. Clear the DTCs with the HDS.
  2. Turn the ignition switch to LOCK (0) and then back to ON (II).
  3. Wait for at least 6 seconds.
  4. Check for DTCs with the HDS.

    Is DTC B1056 indicated? 

    YES  -Do the relay control module input test (see RELAY CONTROL MODULE INPUT TEST ). ■

    NO  -Intermittent failure, the system is OK at this time. Check for loose or poor connections. ■