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Home >> Subaru >> 2020 >> Crosstrek Base, Automatic CVT Trans >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Occupant Detection System (Diagnostics) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC B178C: Vehicle Factory Calibration Uncompleted

DTC B178C: Vehicle Factory Calibration Uncompleted

Diagnosis start condition: 

When the ignition voltage is 10 V - 16 V.

DTC detecting condition: 

Trouble symptom: 

Occupant judgment of occupant detection control module stops.

CAUTION: Before performing diagnosis, refer to "CAUTION" in "General Description". Ref. to OCCUPANT DETECTION (DIAGNOSTICS)>GENERAL DESCRIPTION>CAUTION .
  1. PERFORM [Rezeroing]  .
    1. Perform [Rezeroing]. Ref. to OCCUPANT DETECTION (DIAGNOSTICS)>REZERO .
    2. Using the Subaru Select Monitor, perform the clear memory of [Occupant Detection]. Ref. to COMMON (DIAG)>CLEAR MEMORY .
    3. Execute the inspection mode. Ref. to OCCUPANT DETECTION (DIAGNOSTICS)>INSPECTION MODE .
    4. Read the DTC of [Occupant Detection] using the Subaru Select Monitor. Ref. to OCCUPANT DETECTION (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

    Is DTC B178C displayed? (Current malfunction)

    Yes  : Replace the occupant detection control module. Ref. to SEATS>FRONT SEAT>DISASSEMBLY>PASSENGER'S SEAT .

    No  : [Rezeroing] was not performed.