Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the sensor that tells the car how cold the air is inside the air conditioner. It's like a thermometer for the car's AC, and it's not working right.
The P0535 code is triggered when the powertrain control module (PCM) detects an issue with the A/C evaporator temperature sensor circuit.
The A/C evaporator temperature sensor measures the temperature of the air passing through the evaporator in the air conditioning system. The PCM uses this information to control the A/C system's operation. If the sensor circuit has a fault, the PCM will set the P0535 code.
• Air conditioning not working properly
• Inconsistent cabin temperature
• Check engine light illuminated
• Faulty A/C evaporator temperature sensor
• Wiring issues such as shorts or open circuits
• Poor electrical connection at the sensor
PCM: Powertrain Control Module
A/C: Air Conditioning
OBD-II: On-Board Diagnostics II
• Use an OBD-II scanner to confirm the code.
• Inspect the A/C evaporator temperature sensor and its wiring.
• Test the sensor for proper resistance and operation.
• Replace the A/C evaporator temperature sensor if faulty.
• Repair or replace damaged wiring or connectors.
• Clear the code and test the system for proper operation.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $300
Moderate
• Toyota Camry
• Honda Accord
• Ford F-150
• Regularly inspect A/C system components.
• Ensure wiring is secure and free from damage.
• Perform routine maintenance on the A/C system.
Sensor Issue
• Have the A/C system checked by a professional.
• Avoid using the A/C until the issue is resolved to prevent further damage.
Check with your vehicle manufacturer as some components may be covered under warranty.
This code has been associated with A/C performance issues in various vehicle models over the years.
Moderate – While not immediately critical, it can affect comfort and A/C performance.
Driving with a malfunctioning A/C system is generally safe but may lead to discomfort and potential system damage.
• Vehicle engine running
• A/C system turned on
The A/C evaporator temperature sensor is typically located near the evaporator core inside the HVAC housing.
Q: Can I drive with a P0535 code?
A: Yes, but the A/C system may not function properly, leading to discomfort.
Q: How do I reset the P0535 code?
A: After repairs, use an OBD-II scanner to clear the code and check if it returns.
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Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
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Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
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Fitment Required · Vehicle-fitment part
Relevant when EVAP diagnosis points toward purge-flow or purge-control faults.
EVAP diagnosis often includes purge-flow and valve-control faults.
Confirm the failed valve and exact fitment before buying parts.
View options on AmazonThese parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.