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DTC B1107 Control Module Communication Sticking: Trouble Symptom

WARNING: This page is about a different car, the 2015 Subaru Outback and 2015 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.

CAN communication can not be executed normally.

DIAGNOSTICS PROCEDURE

Step Check Yes No
1 CHECK DTC  .
  1. Turn the ignition switch to ON.
  2. Check DTC indicated by body integrated unit.
Is DTC B1017 displayed? (Current malfunction) Go to step . Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.
NOTE: In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.
2 CHECK CONNECTOR  .
  1. Turn the ignition switch to OFF.
  2. Disconnect the body integrated unit connector.
  3. Connect the disconnected connectors.
  4. Turn the ignition switch to ON.
  5. Read the DTC of body integrated unit using Subaru Select Monitor.
Is DTC B1017 displayed? (Current malfunction) Replace the body integrated unit. <Ref. to BODY INTEGRATED UNIT .> Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.
NOTE: In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.