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Home >> Subaru >> 2022 >> WRX Premium, Standard Trans >> Repair and Diagnosis >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Blind Spot Detection/Rear Cross Traffic Alert System (Diagnostics) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC B2327: Rear Radar Internal Failure (Internal Electric Circuit)

DTC B2327: Rear Radar Internal Failure (Internal Electric Circuit)

DTC detecting condition: 

Defective radar sensor

Trouble symptom: 

CAUTION:

Before performing diagnosis, refer to "CAUTION" in "General Description". Ref. to  BLIND SPOT DETECTION/REAR CROSS TRAFFIC ALERT (DIAGNOSTICS)>GENERAL DESCRIPTION>CAUTION  

NOTE:

Check and replace the side that displayed the DTC. 

  1. CHECK BSD/RCTA  .
    1. Turn the ignition switch to ON.
    2. Using the Subaru Select Monitor, perform the clear memory of [Blind Spot Detection/Rear Cross Traffic Alert (RH)] or [Blind Spot Detection/Rear Cross Traffic Alert (LH)]. Ref. to COMMON (DIAGNOSTICS)>CLEAR MEMORY
      • Blind Spot Detection/Rear Cross Traffic Alert (RH)
      • Blind Spot Detection/Rear Cross Traffic Alert (LH)
    3. Using the Subaru Select Monitor, read the DTCs of [Blind Spot Detection/Rear Cross Traffic Alert (RH)] or [Blind Spot Detection/Rear Cross Traffic Alert (LH)]. Ref. to BLIND SPOT DETECTION/REAR CROSS TRAFFIC ALERT (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) 
      • Blind Spot Detection/Rear Cross Traffic Alert (RH)
      • Blind Spot Detection/Rear Cross Traffic Alert (LH)

    Is DTC B2327 displayed? (Current code)

    Yes  : Replace the radar sensor. Ref. to BLIND SPOT DETECTION/REAR CROSS TRAFFIC ALERT>RADAR SENSOR

    No  : Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

    NOTE:

    In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause.