P1437 2000 Ford F150 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 2000 Ford F150 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 2000 Ford F150 Description
The PCM maintains evaporator core temperature and prevents icing of the evaporator core, by disengaging the A/C compressor clutch when the evaporator A/C Evaporator Temperature sensor reading falls below acceptable levels, and by engaging the A/C compressor clutch 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 2000 Ford F150?
- 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 2000 Ford F150?
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 2000 Ford F150 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 2000 Ford F150 Code
1. What does the OBDII code P1437 mean on a 2000 Ford F150?
P1437 indicates a high voltage issue in the A/C evaporator air temperature circuit, which monitors the air temperature passing through the evaporator.
2. What are the symptoms of a P1437 code on a 2000 Ford F150?
Common symptoms include the A/C not working properly, inconsistent cabin cooling, or the check engine light being illuminated.
3. What causes the P1437 code to appear on a 2000 Ford F150?
Typical causes include a faulty evaporator air temperature sensor, damaged wiring or connectors in the circuit, or a malfunctioning A/C control module.
4. How can I diagnose the P1437 code on my 2000 Ford F150?
Inspect the wiring and connectors for damage or corrosion, test the evaporator air temperature sensor with a multimeter, and check for proper voltage at the circuit.
5. Can I drive my 2000 Ford F150 with a P1437 code?
Yes, but the A/C system may not function correctly, which could lead to discomfort or further strain on the system if left unaddressed.
6. How do I fix the P1437 code on a 2000 Ford F150?
Repairs may involve replacing the evaporator air temperature sensor, repairing damaged wiring, or reprogramming the A/C control module if needed.
7. How much does it cost to repair a P1437 code on a 2000 Ford F150?
Costs vary, but replacing an evaporator air temperature sensor typically ranges from $50 to $200, excluding labor costs.
8. Can a faulty evaporator air temperature sensor cause other problems?
Yes, it can lead to poor A/C performance and potentially affect other A/C system components if not resolved.
9. Do I need special tools to fix a P1437 code on my Ford F150?
Basic tools like a multimeter and wiring diagram are useful for diagnosis, but more advanced testing equipment may be required for in-depth troubleshooting.
10. Will clearing the P1437 code fix the problem on a 2000 Ford F150?
Clearing the code will turn off the check engine light temporarily, but the issue will likely return unless the root cause is addressed.
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