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hscs error code

  1. Driving on Gas Exclusively

    Generation 1 Volt (2011-2015)
    2012 out of warranty (111k miles). High Voltage Charging System error with the P1E00, P1FFF, and P0A66 codes. Serviced three times. Sensor replaced the second time. The code returns within a day except after the sensor was replaced. Then it took about a week for the HVCS error to return. In...