Honda Civic manuals

Subaru Legacy Service Manual: Dtc b2327 rear radar internal failure (internal electric circuit)


Defective radar sensor


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.


Check and replace the side that displayed the DTC.



1) Perform the Clear Memory Mode. Clear Memory Mode

2) Read the DTC again. Read Diagnostic Trouble Code (DTC)

Is DTC B2327 displayed- (Current malfunction)

Replace the radar sensor. Radar Sensor

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.


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

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