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Home >> Subaru >> 2017 >> Forester 2.0XT Touring >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Power Rear Gate System (Diagnostics) >> Diagnostics with Phenomenon >> The Buzzer Does Not Sound >> PRG Inner SW Does Not Function

PRG Inner SW Does Not Function

NOTE: Before performing diagnosis, initialize PRG SYS by opening PRG in manual operation, and then operating the power rear gate auto closer from the partially latched state.
  1. CHECK DTC. 

    Using the Subaru Select Monitor, read DTC of PRG CM. Ref. to POWER REAR GATE (DIAGNOSTICS)>Diagnostic Trouble Code (DTC) .

    Are any DTCs displayed? (Current malfunction)

  2. CHECK DATA MONITOR. 

    Using Subaru Select Monitor, check [R/G inner SW]. Ref. to POWER REAR GATE (DIAGNOSTICS)>Data Monitor .

    Does the display switch between OFF ←→ ON according to PRG inner SW operation?

    • Yes: Go to  4.
    • No: Go to 3. 
  3. CHECK PRG INNER SW INPUT CIRCUIT. 

    Refer to "CHECK PRG INNER SW INPUT CIRCUIT", and check the PRG inner SW. Ref. to POWER REAR GATE (DIAGNOSTICS)>Diagnostics with Phenomenon>INSPECTION>CHECK PRG INNER SW INPUT CIRCUIT .

    Is the check result OK?

    • Yes: Go to 4. 
    • No: Repair according to "CHECK PRG INNER SW INPUT CIRCUIT".
  4. CHECK POWER REAR GATE AUTO CLOSER. 

    Refer to step 3 and subsequent procedures for DTC B2513, and check the power rear gate auto closer. Ref. to POWER REAR GATE (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2513 LATCH CONDITION .

    Is the check result OK?

    • Yes: Go to 5. 
    • No: Repair it according to B2513 diagnosis.
  5. CHECK SOLENOID. 

    Refer to step 4 and subsequent procedures for DTC B2523, and check the solenoid. Ref. to POWER REAR GATE (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2523 HALF STOP SOLENOID FAILURE .

    Is the check result OK?

    • Yes: Go to 6. 
    • No: Repair it according to B2523 diagnosis.
  6. CHECK CLUTCH. 

    Refer to step 4 and subsequent procedures for DTC B2509, and check the clutch. Ref. to POWER REAR GATE (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2509 CLUTCH OPEN .

    Is the check result OK?

    • Yes: Go to 7. 
    • No: Repair it according to B2509 diagnosis.
  7. CHECK PRG MOTOR OPEN CIRCUIT. 

    Perform step 4 and subsequent procedures for DTC B2507, and check the PRG motor open circuit. Ref. to POWER REAR GATE (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2507 PRG MOTOR CIRCUIT OPEN .

    Is the check result OK?

    • Yes: Go to 8. 
    • No: Repair it according to B2507 diagnosis.
  8. CHECK PRG MOTOR SHORT. 

    Perform step 4 and subsequent procedures for DTC B2508, and check the PRG motor short circuit. Ref. to POWER REAR GATE (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B2508 PRG MOTOR CIRCUIT LOW .

    Is the check result OK?

    • Yes: Go to 9. 
    • No: Repair it according to B2508 diagnosis.
  9. CHECK ROTATION SENSOR. 

    Perform step 4 and subsequent procedures for DTC B250B, and check the rotation sensor. Ref. to POWER REAR GATE (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B250B ROTATION SENSOR A STUCK .

    Is the check result OK?

    • Yes: Go to 10. 
    • No: Repair it according to B250B diagnosis.
  10. CHECK TOUCH SENSOR. 

    Perform step 3 and subsequent procedures for DTC B250A, and check the touch sensor. Ref. to POWER REAR GATE (DIAGNOSTICS)>Diagnostic Procedure with Diagnostic Trouble Code (DTC)>DTC B250A TOUCH SENSORS BATT. GND SHORT OUT .

    Is the check result OK?

    • Yes: Replace the PRG CM. Ref. to REMOVAL .
    • No: Repair it according to B250A diagnosis.
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