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2011 Chevrolet Volt – Check Engine Light With P1E00 and P0C4A
CUSTOMER CONCERN The check-engine light remains on after collision repairs, and DTCs P1E00 and P0C4A are stored. CAUSE Cooling-system diagnosis confirmed the hybrid/EV battery-pack coolant pump had failed. CORRECTION Remove and replace the failed hybrid/EV battery-pack coolant pump.
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