Guide To P0597 OBD Error Code Solutions

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This diagnostic fault code is a generic powertrain code, which means that it would apply to the OBD-II equipped vehicles. The specific repair steps can vary as it depends upon the vehicle make and model.

The error code P0597 can be defined as Thermostat Heater Control Circuit/Open. This fault code signifies that a thermostat heater control circuit is open.

What causes this problem with the Thermostat Heater Control Circuit/Open?

• The thermostat might start failing
• There can be a loose or corroded connector on the thermostat
• Leakage in the coolant
• A short or open has occurred in the wiring harness between the computer and thermostat
• Some defects in the motronic computer

1. Thermostat - There can be some issues with the Thermostat due to which you may see P0597 code appearing over and over again. Visit us to buy best quality Thermostat online.
2. Engine Coolant Temperature Sensor - A lot of issues can arise do to defective Engine Coolant Temperature Sensor. Did you just see P0597 code flashing? Now you know the reason why it is appearing. Get it inspected and replaced on time.
3. Coolant or Antifreeze - Lack of Coolant or Antifreeze can be the reason why P0597 code is flashing. Visit us to purchase top notch Car Coolant or Antifreeze online.
4. Engine Control Module - It is an important auto part which needs full care. A faulty Engine Control Module can be a reason behind the flashing up of P0597 code.
5. Powertrain Control Module - There can be some issues with the Powertrain Control Module due to which you may see P0597 code appearing over and over again. Visit us to buy best quality PCM online.

You might be thinking that how would you diagnose these problems? We at Parts Avatar Canada would help you diagnose the major symptoms easily.

Common Symptoms

• The temperature gauge may read abnormally high
• The check engine light may start illuminating

Looking out for some ways with the help of which you can correct this fault code? Then you have arrived at the correct place. We are here to help you out, so you must check out the steps mentioned below as follows:

• You can always clean off or replace the damaged circuitry
• Replace the thermostat
• If there is a coolant leakage, then it should be addressed properly

There is no need to get strained if your OBD Code is still flashing up as we are here at your service. Have a look at our superior variety of Car Antifreeze, Coolant Fluid, Engine Coolant Low, Thermostat Connections, Thermostat Wiring Harness, Engine Coolant Heater, Replace Engine Coolant Heater and many more. Now all your problems would vanish within no time.

Here are some steps which you should follow in order to diagnose this fault code:

• First of all you must remove and inspect the electrical connector. Remove any corrosion using baking soda or by scraping. Apply electro grease and confirm a tight connection
• The coolant level in the radiator should be inspected properly. Low levels of coolant will set a code by causing the electronic thermostat to overheat
• Remove the electrical connector and check the resistance values on the thermostat. For this procedure you will need a service manual or the necessary information found online
• This information needs to include the identification of the pins and their location, color of the wires, pin values in volts at specific temperatures and resistances. These values and flow of diagnosis varies from manufacturer to manufacturer and with engine size
• You will require an infrared temperature probe and volt/ohmmeter
• Carefully determine the temperature of the engine with the temperature probe
• Start the engine and test the voltage on the motronic side of the harness as per the instructions. If it is within limits continue testing. If there was no voltage or it was out of range, replace the motronic unit
• Compare the resistance on the thermostat side of the harness at the thermostat. If the resistance is out of range replace the thermostatic unit
• If you find out that the tools are not readily available, take the vehicle to a good shop that has access to the necessary information

Common Mistakes When Diagnosing The P0597 Code

• There are a lot of mechanics which would simply replace the entire electronic thermostat. It might solve the issue but sometimes the real issue can be with the system circuitry
• Mechanics need to be careful to not just clean off or repair corroded wires, but also look for the source of this corrosion
• The main culprit is the leakage in the engine coolant. It is important to repair it or else the problem would start repeating