Chevrolet Volt Coolant Valve Q65
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Chevrolet Volt Heater control valve is a 4 way valve that directs coolant from engine, transmission and battery side to respectable radiator.
Control is done by 5V signal.
This control valve is located in the right side of the hood next to the HV heater.
Pin1 – 12V
Pin2 – Solenoid control signal
Pin3 – 5V reference
Pin4 – Solenoid Position signal
Pin5 - Low reference
Pin6 - GND