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P0597

P0597 - Thermostat Heater Control Circuit Open

Possible causes
- Failed Engine Cooling Thermostat
- Engine Cooling Thermostat harness is open or shorted
- Engine Cooling Thermostat circuit poor electrical connection
What does this mean? What does this mean?
Tech notes
If there are not coolant system leaks, replaced the thermostat to fix the problem.
What does this mean? What does this mean?
When is the code detected?
The P0597 is triggered when there is an open or short thermostat heather control circuit.
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
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