On/off check engine light code PO597

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Vetterin

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Joined Mar 27, 2011

1,917 Posts

#2 · Nov 5, 2014

Thermostat Heater Control Circuit/Open. Most likely the thremostat or cracked breather hose. In either case they should be able to repair it while you wait.

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On/off check engine light code PO597

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