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Basic Diagnostic Procedure: Procedure

CAUTION:
  • Subaru Select Monitor is required for reading DTC, performing diagnosis and reading current data.
  • Remove foreign matter (dust, water, oil, etc.) from the body integrated unit connector during removal and installation.
  • Registration of immobilizer may be needed after the replacement of control modules, etc. For detailed procedure, refer to the "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume. Contact an Authorized Subaru Dealership.
NOTE:
  1. CHECK PRE-INSPECTION  .

    Ask the customer when and how the trouble occurred using the Check List for Interview. Ref. to BODY CONTROL SYSTEM (DIAGNOSTICS)>Check List for Interview 

    Did you interview the customer?

    Yes: Go to  2

    No: Interview the customer.

  2. BASIC INSPECTION  .

    Check components which might affect body control. Ref. to BODY CONTROL SYSTEM (DIAGNOSTICS)>General Description>INSPECTION 

    Is the check result of the component that might influence the body control problem OK?

    Yes: Go to  3

    No: Repair or replace each component.

  3. CHECK DTC  .
    1. Read the DTC. Ref. to BODY CONTROL SYSTEM (DIAGNOSTICS)>Read Diagnostic Trouble Code (DTC)>OPERATION 
      NOTE: If the communication function of the Subaru Select Monitor cannot be executed properly, check the communication circuit. Ref. to LAN SYSTEM (DIAGNOSTICS)>Subaru Select Monitor>COMMUNICATION FOR INITIALIZING IMPOSSIBLE
    2. Record all DTCs, time stamp and freeze frame data.
      NOTE: For time stamp, refer to "LAN SYSTEM". Ref. to LAN SYSTEM (DIAGNOSTICS)>General Description>CAUTION>TIME STAMP

    Is DTC displayed on Subaru Select Monitor?

    Yes: Perform the diagnosis for the displayed DTCs. Ref. to BODY CONTROL SYSTEM (DIAGNOSTICS)>List of Diagnostic Trouble Code (DTC) . Go to  5

    No: Go to  4

  4. PERFORM GENERAL DIAGNOSTICS  .

    Inspect using the "General Diagnostic Table". Ref. to BODY CONTROL SYSTEM (DIAGNOSTICS)>General Diagnostic Table 

    Is the check result OK?

    Yes: The body control system is normal.

    No: Go to  5

  5. PERFORM DIAGNOSIS  .
    1. Perform the Clear Memory Mode. Ref. to BODY CONTROL SYSTEM (DIAGNOSTICS)>Clear Memory Mode>OPERATION 
    2. Perform the Inspection Mode. Ref. to BODY CONTROL SYSTEM (DIAGNOSTICS)>Inspection Mode 

    Is DTC displayed on Subaru Select Monitor?

    Yes: Perform the diagnosis for the displayed DTCs. Ref. to BODY CONTROL SYSTEM (DIAGNOSTICS)>List of Diagnostic Trouble Code (DTC) 

    No: Finish the diagnosis.

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