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

DTC detecting condition:

Defective radar sensor

Trouble symptom:

All functions of BSD/RCTA stop.
Fail icon is displayed in the combination meter LCD display.
Failure-related notification is displayed for approx. two seconds on LCD display in the combination meter.

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.

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 (DIAG)>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 malfunction)
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.