P0537 2010 Ford Fusion Code - A/C Evaporator Temperature Circuit Low
Quick Answer
The A/C Evaporator Temperature (ACET) sensor contains a thermistor which receives a reference voltage from the Powertrain Control Module (PCM). Common causes include Faulty A/C Evaporator Temperature (ACET) Sensor, A/C Evaporator Temperature Sensor harness is open or shorted, A/C Evaporator Temperature Sensor circuit poor electrical connection. 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 2010 Ford Fusion indicates A/C Evaporator Temperature Circuit Low .
- Common causes
- Common causes include Faulty A/C Evaporator Temperature (ACET) Sensor, A/C Evaporator Temperature Sensor harness is open or shorted, A/C Evaporator Temperature Sensor circuit poor electrical connection.
- 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.
Code P0537 2010 Ford Fusion Description
The PCM maintains evaporator core temperature and prevents icing of the evaporator core, by disengaging the A/C compressor clutch (non-hybrid) or decreasing the electric A/C compressor speed (hybrid) when the evaporator A/C Evaporator Temperature sensor reading falls below acceptable levels, and by engaging the A/C compressor clutch (non-hybrid) or increasing the electric A/C compressor speed (hybrid) when the discharge air temperature rises above acceptable levels.
The A/C Evaporator Temperature sensor is located inside of the heater core and evaporator core housing in the air-stream leaving the evaporator core.
The Diagnostic Trouble Code (DTC) Indicates the ACET signal input is less than Self-Test minimum. The Self-Test minimum is 0.13 volts.
What are the Possible Causes of the DTC P0537 2010 Ford Fusion?
- Faulty A/C Evaporator Temperature (ACET) Sensor
- A/C Evaporator Temperature Sensor harness is open or shorted
- A/C Evaporator Temperature Sensor circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
How to Fix the DTC P0537 2010 Ford Fusion?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0537 2010 Ford Fusion code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P0537 2010 Ford Fusion code?
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Frequently Asked Questions about P0537 2010 Ford Fusion Code
1. What are the common symptoms of OBDII code P0537 in a 2010 Ford Fusion related to the A/C Evaporator Temperature Circuit Low?
- Common symptoms include weak or lack of cold air from the air conditioning system, intermittent cooling, and the A/C system not working at all.
2. What are some possible causes of OBDII code P0537 in a 2010 Ford Fusion?
- Possible causes may include a faulty A/C evaporator temperature sensor, damaged wiring or connectors in the circuit, low refrigerant level, or a malfunctioning HVAC module.
3. How can I diagnose the A/C Evaporator Temperature Circuit Low issue in my 2010 Ford Fusion?
- Diagnose by checking the A/C system for proper refrigerant levels, testing the A/C evaporator temperature sensor for resistance, and inspecting the wiring and connectors for any damage or corrosion.
4. Can I continue driving my 2010 Ford Fusion with OBDII code P0537 triggered?
- It is not recommended to continue driving with this code triggered as it may lead to further damage to the A/C system components.
5. What are some DIY repair tips for fixing OBDII code P0537 in a 2010 Ford Fusion?
- DIY repair tips include checking and replacing the A/C evaporator temperature sensor, inspecting and repairing any damaged wiring, and ensuring the refrigerant level is correct.
6. How much does it typically cost to repair OBDII code P0537 in a 2010 Ford Fusion at a professional mechanic or dealership?
- The cost of repair can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.
7. Is it important to reset the OBDII code P0537 after fixing the issue in a 2010 Ford Fusion?
- Yes, it is important to reset the code using an OBDII scanner after fixing the issue to clear the fault code from the system and ensure proper functionality of the A/C system.
8. Can extreme weather conditions contribute to triggering OBDII code P0537 in a 2010 Ford Fusion?
- Extreme heat or cold can potentially affect the A/C system and its components, leading to issues like a low A/C evaporator temperature circuit.
9. Are there any preventive maintenance steps to avoid OBDII code P0537 in a 2010 Ford Fusion?
- Regularly servicing the A/C system, checking refrigerant levels, and inspecting wiring and sensors can help prevent issues like the A/C evaporator temperature circuit low fault.
10. How long does it typically take to repair OBDII code P0537 related to the A/C Evaporator Temperature Circuit Low in a 2010 Ford Fusion?
- The repair time can vary depending on the exact cause of the issue and the complexity of the repair, but it may take anywhere from 1 to 3 hours at a professional repair shop.
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