Audio System - Screeching Noise On AM Band

NUMBER: 15-132-08

DATE: 09/256/08

APPLICABILITY:
2006-08MY Legacy/Outback, Sedan and Wagon
(Excludes vehicles equipped with VDC)

SUBJECT:
AM Radio Noise

INTRODUCTION

If you encounter a customer complaint of AM Radio noise (a screeching type noise) when traveling over bumps with or without applying the brakes, it may be caused by the ABS-ECU. To eliminate the noise, a modification was made to the ABS-ECU by adding a condenser in the power supply line of the valve relay.





Vehicles manufactured without the modified ABS-ECU





PART INFORMATION

SERVICE /REPAIR INFORMATION





For the ABS-ECU replacement procedure, refer to the applicable Subaru Service Manual located on the STIS (Subaru Technical Information System) web site.

Note:
Do not replace the ABS HCU/ECU assembly for the condition described in this bulletin, only the ABS-ECU.

For diagnostic purposes the condition (radio noise) can be confirmed by removing the ABS fuse and driving the vehicle over bumps. If the radio noise is gone, replacing the ABS-ECU will correct the condition.

Caution:
Make sure the ABS fuse is reinstalled after diagnostics.

WARRANTY/CLAIM INFORMATION

For vehicles within the Basic New Car Limited Warranty period, refer to the Subaru Warranty Wizard(TM) for claim information.





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