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.

CAUTION: Before performing diagnosis, refer to "CAUTION" in "General Description". Ref. to BODY CONTROL (DIAGNOSTICS)>GENERAL DESCRIPTION>CAUTION .

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) .
Is DTC B1010 displayed? (Current malfunction)

Yes : Go to 2.

No : Temporary EEPROM access error occurred.
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) .
  Is DTC B1010 displayed? (Current malfunction)
  
  Yes : Replace the body integrated unit. Ref. to SECURITY AND LOCKS>BODY INTEGRATED UNIT .
  
  No : Temporary EEPROM access error occurred.