P1437 2007 Ford Fusion Code - A/C Evaporator Air Temperature Circuit High
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
- P1437 2007 Ford Fusion indicates A/C Evaporator Air Temperature Circuit High.
- 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 P1437 2007 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 A/C Evaporator Temperature sensor signal input is greater than Self-Test minimum. Self-Test maximum is 4.5 volts.
What are the Possible Causes of the DTC P1437 2007 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 P1437 2007 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 P1437 2007 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.
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Frequently Asked Questions about P1437 2007 Ford Fusion Code
1. What are the common symptoms of OBDII code P1437 in a 2007 Ford Fusion related to the A/C evaporator air temperature circuit high?
- Common symptoms include poor air conditioning performance, warm air blowing from the vents, and the A/C system not cooling efficiently.
2. What does the OBDII code P1437 mean on a 2007 Ford Fusion?
- The code P1437 indicates an issue with the A/C evaporator air temperature circuit reading higher than normal in a 2007 Ford Fusion.
3. What are the possible causes of OBDII code P1437 in a 2007 Ford Fusion?
- Possible causes include a faulty A/C evaporator air temperature sensor, wiring issues, a defective HVAC control module, or a malfunctioning A/C compressor.
4. How can I diagnose the OBDII code P1437 in my 2007 Ford Fusion?
- To diagnose the issue, you can use an OBDII scanner to read and clear the code, check the A/C evaporator air temperature sensor for proper operation, inspect the wiring for any damage, and test the HVAC control module and A/C compressor.
5. Can I continue driving my 2007 Ford Fusion with the OBDII code P1437 present?
- It is not recommended to continue driving with the code present, as it can lead to poor A/C performance and potential further damage to the A/C system components.
6. How can I repair OBDII code P1437 in a 2007 Ford Fusion?
- Repairs may involve replacing the faulty A/C evaporator air temperature sensor, repairing any damaged wiring, or replacing the HVAC control module or A/C compressor if necessary.
7. Are there any DIY tips for fixing OBDII code P1437 in a 2007 Ford Fusion?
- While some basic diagnostics can be done at home, it is recommended to consult a professional mechanic for accurate diagnosis and repair of the A/C evaporator air temperature circuit high issue.
8. Can weather conditions affect the occurrence of OBDII code P1437 in a 2007 Ford Fusion?
- Extreme temperatures or humidity levels can potentially impact the A/C system's performance and trigger the A/C evaporator air temperature circuit high fault code.
9. How much does it typically cost to repair OBDII code P1437 in a 2007 Ford Fusion?
- Repair costs can vary depending on the exact cause of the issue, but expect to pay anywhere from $100 to $500 for parts and labor to resolve the A/C evaporator air temperature circuit high fault.
10. Is it necessary to reset the OBDII code P1437 after repairing the issue in a 2007 Ford Fusion?
- Yes, it is important to clear the fault code using an OBDII scanner after fixing the underlying problem to reset the A/C system's error memory and ensure proper operation.
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