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October 9, 2018 Service bulletin

This bulletin announces an additional troubleshooting step to follow when diagnosing a DTC U0284: ?LOST...

Subaru technical service bulletin 07-140-18 for 2017-2019 Subaru Impreza.

Bulletin number
07-140-18
Component
Electrical system
Summary
This bulletin announces an additional troubleshooting step to follow when diagnosing a DTC U0284: ?LOST COMMUNICATIONWITH ACTIVE GRILLE SHUTTER MODULE ?A?. Water intrusion into the harness wiring leading to connector B63 for the Active Grille Shutter (AGS) may lead to corrosion of the harness wiring and/or connector terminals and result in a communication loss with the ECM.

Owners of these vehicles have filed 52 complaints in the electrical category.

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