P1436 2000 Ford F150 Code - A/C Evaporator Air 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
- P1436 2000 Ford F150 indicates A/C Evaporator Air 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 P1436 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 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 P1436 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 P1436 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 P1436 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 P1436 2000 Ford F150 Code
1. What does the OBDII code P1436 mean on a 2000 Ford F150?
P1436 indicates an issue with the A/C Evaporator Air Temperature Circuit, specifically that the voltage reading is too low.
2. What are the symptoms of a P1436 code on a 2000 Ford F150?
Common symptoms include poor air conditioning performance, inconsistent cabin cooling, or the A/C system not functioning properly.
3. What causes the P1436 code on a 2000 Ford F150?
Causes can include a faulty A/C evaporator temperature sensor, damaged wiring or connectors, or issues with the vehicle's PCM (Powertrain Control Module).
4. Can I still drive my 2000 Ford F150 with a P1436 code?
Yes, the vehicle is typically still drivable, but the A/C system may not work properly, which can be uncomfortable in hot weather.
5. How do I diagnose a P1436 code on my 2000 Ford F150?
Start by inspecting the A/C evaporator temperature sensor and its wiring for damage or loose connections, then use a multimeter to test the sensor's voltage signal.
6. How do I fix the P1436 code on a 2000 Ford F150?
Repairs may involve replacing the A/C evaporator temperature sensor, repairing damaged wiring, or resetting the PCM if no physical issues are found.
7. Where is the A/C evaporator temperature sensor located on a 2000 Ford F150?
The A/C evaporator temperature sensor is typically located near the evaporator core inside the HVAC housing.
8. Can a faulty PCM cause the P1436 code on a 2000 Ford F150?
Yes, although it’s rare, a malfunctioning PCM or a software issue can cause incorrect readings and trigger the P1436 code.
9. How much does it cost to fix the P1436 code on a 2000 Ford F150?
Repair costs can vary but typically range from $100 to $300, depending on whether the sensor needs replacement or wiring repairs are required.
10. Will clearing the P1436 code fix the problem?
Clearing the code may temporarily remove the warning, but the underlying issue must be resolved to prevent it from returning.
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