AutoCodes – Lincoln – P0535 Lincoln

P0535 Lincoln Code - A/C Evaporator Temperature Sensor Circuit

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: P0535 Lincoln indicates A/C Evaporator Temperature Sensor Circuit.
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.

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Code Popularity 704

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 28, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0535 Lincoln Description

The A/C Evaporator Temperature (ACET) sensor contains a thermistor which receives a reference voltage from the Powertrain Control Module (PCM). The thermistor then varies the resistance to the reference voltage based on the evaporator discharge air temperature. The resulting voltage is returned to the PCM where it is interpreted as an evaporator discharge air temperature reading.
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 not to factory specifications.

OBDII Code P0535 Lincoln - A/C Evaporator Temperature Sensor Circuit - AutoCodes.com — P0535 Lincoln Code - A/C Evaporator Temperature Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC P0535 Lincoln?

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 P0535 Lincoln?

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 P0535 Lincoln 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 P0535 Lincoln code?

Need more information on how to fix the P0535 Lincoln code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0535 Lincoln code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0535 Lincoln Code

1. What are the common symptoms of OBDII code P0535 in a Lincoln related to the A/C Evaporator Temperature Sensor Circuit?

The common symptoms include poor A/C performance, intermittent cooling, or complete failure of the air conditioning system.

2. What are the possible causes of OBDII code P0535 in a Lincoln?

The code P0535 can be triggered by a faulty A/C evaporator temperature sensor, damaged wiring or connectors in the sensor circuit, or a malfunctioning HVAC control module.

3. How can I diagnose the A/C Evaporator Temperature Sensor Circuit issue in my Lincoln?

To diagnose the issue, you can use a diagnostic scanner to read the OBDII code P0535 and perform a visual inspection of the sensor, wiring, and connectors. Testing the sensor's resistance and checking for voltage at the sensor are other diagnostic steps.

4. What are the repair options for fixing OBDII code P0535 in a Lincoln?

Repair options include replacing the A/C evaporator temperature sensor, repairing or replacing damaged wiring or connectors, and resetting the fault code with a diagnostic tool after the repair is completed.

5. Can I drive my Lincoln with OBDII code P0535 related to the A/C Evaporator Temperature Sensor Circuit?

It is not recommended to drive the vehicle with this code active, as it may lead to further damage to the A/C system or result in uncomfortable driving conditions, especially in hot weather.

6. How important is the A/C Evaporator Temperature Sensor in a Lincoln's air conditioning system?

The A/C evaporator temperature sensor is crucial for the proper functioning of the air conditioning system as it helps regulate the evaporator temperature, ensuring optimal cooling performance.

7. Will resetting the OBDII code P0535 in my Lincoln make the issue go away permanently?

Resetting the code may temporarily clear the error message, but if the underlying issue causing the code is not addressed, it is likely to reappear, and the A/C problem will persist.

8. Can a DIY enthusiast replace the A/C Evaporator Temperature Sensor in a Lincoln?

Replacing the sensor may require some mechanical expertise and tools, so it is recommended to consult a professional mechanic for proper diagnosis and repair to ensure the issue is resolved correctly.

9. How much does it typically cost to repair OBDII code P0535 in a Lincoln at a repair shop?

The cost of repairing the A/C Evaporator Temperature Sensor Circuit issue can vary depending on the labor rates, parts needed, and the extent of the damage, but it may range from $150 to $400.

10. Are there any preventive maintenance tips to avoid OBDII code P0535 in a Lincoln?

Regularly servicing the A/C system, checking for any abnormal cooling performance, and addressing any issues promptly can help prevent the occurrence of OBDII code P0535 related to the A/C Evaporator Temperature Sensor Circuit.