P0537 Code - A/C Evaporator Temperature Circuit Low Input
Quick Answer
The OBD-II trouble code P0537 indicates that there is a problem with the A/C evaporator temperature sensor circuit, specifically that the input signal is too low. Common causes include Defective A/C evaporator temperature sensor, Faulty wiring or connections, Blown fuse related to the A/C system. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
- What it means
- P0537 indicates A/C Evaporator Temperature Circuit Low Input.
- Common causes
- Common causes include Defective A/C evaporator temperature sensor, Faulty wiring or connections, Blown fuse related to the A/C system.
- Severity
- Low - monitor the vehicle and repair when practical.
- Can I drive?
- The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P0537 Description
The OBD-II trouble code P0537 indicates that there is a problem with the A/C evaporator temperature sensor circuit, specifically that the input signal is too low. The A/C evaporator temperature sensor is responsible for monitoring the temperature of the evaporator core, which is crucial for the proper functioning of the vehicle's air conditioning system. When the sensor detects that the evaporator temperature is lower than the specified range, it triggers this trouble code.
Common Causes of P0537
- Defective A/C evaporator temperature sensor
- Faulty wiring or connections
- Blown fuse related to the A/C system
- Issues with the A/C control module
Symptoms of P0537
- Ineffective cooling from the A/C system
- Erratic temperature fluctuations in the cabin
- A/C system not turning on or off correctly
- Check Engine Light illuminated on the dashboard
How to Fix P0537
- Begin by diagnosing the specific cause of the low input signal using a diagnostic scanner.
- Inspect the A/C evaporator temperature sensor and its wiring for any signs of damage or corrosion.
- Test the sensor's resistance and voltage to determine if it is functioning correctly.
- Replace the A/C evaporator temperature sensor if it is found to be faulty.
- Clear the trouble code from the vehicle's memory and test the A/C system to ensure proper function.
Cost to Fix P0537
The typical repair costs for addressing the P0537 trouble code can vary depending on the specific cause of the issue. In general, replacing the A/C evaporator temperature sensor can cost anywhere from $100 to $300, including parts and labor. Additional costs may be incurred if other components need to be replaced or if further diagnostics are required. It is advisable to consult with a professional mechanic to get an accurate estimate based on your vehicle's make and model. Labor rates at auto repair shops can vary, so it is recommended to inquire about specific rates in your area.
Need more information about the P0537 code?
Need more information on how to fix the P0537 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0537 code diagnosed by a professional: Find a repair shop in your area
Code P0537 Information for Specific Makes
- P0537 Ford — A/C Evaporator Temperature Circuit Low Input
- P0537 Lincoln — A/C Evaporator Temperature Circuit Low Input
- P0537 Mercury — A/C Evaporator Temperature Circuit Low Input
Frequently Asked Questions about P0537 Code
No Frequently Asked Questions about P0537 Code found.
Discuss the causes and fixes for P0537 OBDII Code
Code P0537 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.