Subaru Crosstrek Service Manual: Dtc b1010 body control system (biu) malfunction

DTC DETECTING CONDITION:

System error in body integrated unit

TROUBLE SYMPTOM:

LAN communication immobilizer function may not be executed normally.

1.CHECK DTC.

Check DTC indicated by body integrated unit. Read Diagnostic Trouble Code (DTC)">

Is B1010 current malfunction?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1010 BODY CONTROL SYSTEM (BIU) MALFUNCTION">Go to Step 2.

Temporary EEPROM access error occurred.

2.CHECK CONNECTOR.

1) Turn the ignition switch to OFF.

2) Disconnect the body integrated unit connector.

3) Connect the disconnected connectors.

4) Read the DTC of body integrated unit using Subaru Select Monitor. Read Diagnostic Trouble Code (DTC)">

Is B1010 current malfunction?

Replace the body integrated unit. Body Integrated Unit">

Temporary EEPROM access error occurred.

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Other materials:

Location
COMMUNICATION SYSTEM > Relay and FuseLOCATIONMain fuse boxFuse 15 A (horn assembly)(A)Horn relay(B)NOTE:For other related fuses, refer to the wiring diagram. Power Supply Circuit"> ...

Electrical specification
LAN SYSTEM (DIAGNOSTICS) > Control Module I/O SignalELECTRICAL SPECIFICATION• Body integrated unitFor I/O signals of the body integrated unit, refer to BODY CONTROL SYSTEM (DIAGNOSTICS). Control Module I/O Signal">• Engine CMFor I/O signals of ECM, refer to ENGINE (DIAGNOSTIC ...

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EyeSight (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC U0140 LOST COMMUNICATION WITH BODY CONTROL MODULEDetected when CAN data from body integrated unit is not transmitted to stereo camera.NOTE:Perform the diagnosis for LAN system. Basic Diagnostic Procedure > PRO ...