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P0597 Chevrolet Code - Thermostat Heater Control Circuit Open

- Code Popularity: 36,163 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents
By AutoCodes.com - Updated Apr 28, 2019
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|Code P0597 Chevrolet Possible Causes

  • Failed Engine Cooling Thermostat Heater
  • Engine Cooling Thermostat Heater harness is open or shorted
  • Engine Cooling Thermostat Heater circuit poor electrical connection

|How do I Fix the Code P0597 Chevrolet?

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Does your Chevrolet have Safety Recalls? → Check here

|Code P0597 Chevrolet Tech Notes





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|What is the Cost to Diagnose the Code P0597 Chevrolet?

Labor: 1.0

The cost of diagnosing the P0597 Chevrolet code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle's make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.

|When is the Code P0597 Chevrolet Detected?

The P0597 is triggered when there is an open or short thermostat heather control circuit.

|What are Code P0597 Chevrolet Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|Code P0597 Chevrolet Description

The Engine Control Module (ECM) controls the Pulse Width Modulated (PWM) thermostat. The engine coolant thermostat heater controls coolant flow and regulates the engine operating temperature. The ECM supplies 12 V to the thermostat. The ECM controls the engine coolant thermostat heater by grounding the control circuit with a solid state device called a driver. The driver is equipped with a feedback circuit that is pulled-up to a voltage. The ECM can determine if the control circuit is open, shorted to ground, or shorted to a voltage by monitoring the feedback voltage.

OBDII Code P0597 Chevrolet - Thermostat Heater Control Circuit Open - AutoCodes.com
P0597 Chevrolet Code - Thermostat Heater Control Circuit Open

|Need More Information on the P0597 Chevrolet Code?

Need more information on how to fix the P0597 Chevrolet code? Get Access to Factory Service Manuals

|Need Help with the P0597 Chevrolet Code?

Get the P0597 Chevrolet code diagnosed by a professional: Find a repair shop in your area

|Code P0597 Chevrolet comments

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