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May 28, 2009 Service bulletin

Toyota: some vehicles may exhibit a M.I.L. on condition with one of more of the following diagnostic...

Toyota technical service bulletin TSB-0166-09 for 2004-2009 Toyota Prius.

Bulletin number
TSB-0166-09
Component
Electrical system: 12v/24v/48v battery
Summary
Toyota: some vehicles may exhibit a m.I.l. On condition with one of more of the following diagnostic trouble codes (dtcs): p0ac0; p0a1f; p0a7f; p0afa (hybrid battery pack/system). Improvements have been made to the hv ecu and battery ecu hardware to correct these conditions.

Owners of these vehicles have filed 1,051 complaints in the electrical category.

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