Subaru Legacy BN/BS (2015-2019) Service Manual: Diagnostic procedure with cancel code dtc b2328 rear radar internal failure (radar misalignment)

Subaru Legacy BN/BS (2015-2019) Service Manual / Blind spot detection rear cross traffic alert (diagnostics) / Diagnostic procedure with cancel code dtc b2328 rear radar internal failure (radar misalignment)

DETECTING CONDITION:

• Excessive impact was given to the installation area of the radar sensor, which resulted in deviation of the radar sensor axis.

• Mounting bracket for the radar sensor is deformed.

• Defective radar sensor

TROUBLE SYMPTOMS:

• All functions of BSD/RCTA are temporarily suspended.

• The icon indicating function suspended will be displayed in the combination meter LCD display.

• Function-suspended confirmation will be displayed for approx. two seconds on LCD display in the combination meter.

NOTE:

If DTC B2328 is detected repeatedly, check or replace the part corresponding to the cancel code.

STEP	CHECK	YES	NO
1.CHECK REAR BUMPER. Check the rear bumper.	Is there any fault- (Stickered, trace of repainting, etc.)	Replace or repair the bumper. Rear Bumper Diagnostic Procedure with Cancel Code > DTC B2328 REAR RADAR INTERNAL FAILURE (RADAR MISALIGNMENT)	Diagnostic Procedure with Cancel Code > DTC B2328 REAR RADAR INTERNAL FAILURE (RADAR MISALIGNMENT)
2.CHECK RADAR SENSOR BRACKET. 1) Remove the rear bumper. Rear Bumper 2) Check the mounting bracket of the radar sensor as well as its installation position. Radar Sensor	Is there any fault- (Visible damage, deformation, etc.)	Replace the mounting bracket of the radar sensor, or repair the installation position. Radar Sensor Diagnostic Procedure with Cancel Code > DTC B2328 REAR RADAR INTERNAL FAILURE (RADAR MISALIGNMENT)	Diagnostic Procedure with Cancel Code > DTC B2328 REAR RADAR INTERNAL FAILURE (RADAR MISALIGNMENT)
3.ADJUSTMENT OF RADAR SENSOR AXIS. 1) Install the rear bumper. 2) Perform the adjustment of radar axis. Radar Sensor > ADJUSTMENT 3) Read the cancel code. Read Cancel Code	Is B2328 displayed-	Replace the radar sensor. Radar Sensor	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.

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