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  1. P1AF0 P1AF2 P1E22 Error Codes - Battery Heater

    Care, Maintenance & Service - Chevy Volt
    Engine light came on the other morning, called OnStar and was told get the car into the dealer. Codes P1AF0, P1AF2 and P1E22 were quoted. Dealer said they all lead to a diagnostic tree of replacing the T Battery Heater unit. It is currently undergoing that replacement (slight chance it could...
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