DTC B1107: Control Module Communication Sticking

DTC detecting condition:

CAN message in the body integrated unit stuck in register

Time needed for diagnosis:

Immediately

Trouble symptom:

CAN communication can not be executed normally.

CHECK DTC .
1. Turn the ignition switch to ON.
2. Read the DTC of [Body Control] using the Subaru Select Monitor. Ref. to BODY CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .
DTC Check

Is DTC B1107 displayed? (Current malfunction)

Yes: Go to 2.

No:
1. 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.
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 Control] using the Subaru Select Monitor. Ref. to BODY CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .
DTC Check

Is DTC B1107 displayed? (Current malfunction)

Yes: Replace the body integrated unit. Ref. to SECURITY AND LOCKS>BODY INTEGRATED UNIT .

No:
1. 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.