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Home >> Honda >> 2012 >> Ridgeline RT >> Repair and Diagnosis (Single Page) >> Electrical >> Body Electrical >> Under-Hood Fuse/Relay Box >> DTC Troubleshooting >> DTC B1058: Relay Control Module Lost Communication With Door Multiplex Control Unit (Door Lock Switch Message); DTC B1059: Relay Control Module Lost Communication With Door Multiplex Control Unit (Panic Message)
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DTC B1058: Relay Control Module Lost Communication With Door Multiplex Control Unit (Door Lock Switch Message); DTC B1059: Relay Control Module Lost Communication With Door Multiplex Control Unit (Panic Message)

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.

    Are DTCs B1058 and/or B1059 indicated? 

    YES  -Go to step 5.

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

  5. Check for DTCs with the HDS.

    B1058: Are DTCs B1006 and B1160 also indicated? B1059: Is DTC B1010 also indicated? 

    YES  -Do the door multiplex control unit input test (see DOOR MULTIPLEX CONTROL UNIT INPUT TEST ). ■

    NO  -Do the relay control module input test (see RELAY CONTROL MODULE INPUT TEST ). ■