P0597 OBD-II: Thermostat Heater Control Circuit/Open
P0597 Severity
Should you fix P0597 yourself?
Identifying an OBD code is just the start of a complete diagnostic routine. Most trouble codes are caused by a sensor reporting a value that is out of range. Just replacing a sensor may not fix underlying issues. Be sure to understand the code, the part or system in your car that the code refers to, and the risks of delaying professional repair.
Proper diagnosis will save you time and money on unnecessary repairs.
Urgent codes indicate immediate action is necessary. These are urgent and significant malfunctions that can cause severe damage to the vehicle or harm the driver and passengers.
What causes OBD-II fault code P0597?
Some newer engines utilize thermostats that are electronically controlled by the engine control module (PCM). If the PCM detects an incorrect signal from thermostat, the PCM will set code P0597.
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What Does P0597 Code Mean?
OBD-II Code P0597 is defined as a Thermostat Heater Control Circuit/Open
Some newer engines utilize thermostats that are electronically controlled by the engine control module (PCM). If the PCM detects an incorrect signal from thermostat, the PCM will set code P0597.
P0597 Symptoms
- Cooling fans may stay on all the time
Common Problems That Trigger the P0597 Code
- Powertrain Control Module (PCM) failure
- Thermostat failure
- Wiring issue
Common Repairs Needed for the P0597 Code
Ask our experts about P0597.
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