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Chevrolet
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2011
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Volt
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Engine Performance
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System
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Data Communications System
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Diagnostic Information and Procedures
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DTC P1EC1 or P1EC2
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Conditions for Running the DTC
Conditions for Running the DTC
The control module is awake and communicating.
The system voltage is at least 9 V.
DTCs U2602, U180B, P1A0C, or P1A07 is not set.