P0536 OBD-II Trouble Code: A/C Evaporator Temperature Sensor Circuit Range/Performance

Our certified mechanics come to you · 12-month, 12,000-mile warranty

SCHEDULE P0536 DIAGNOSTIC Get a fair and transparent estimate upfront
Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0536 code

P0536 is a diagnostic trouble code (DTC) for "A/C Evaporator Temperature Sensor Circuit Range/Performance". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $70.00. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $30.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$70.00$30.00
Toyota$70.00$30.00
BMW$70.00$30.00
SCHEDULE P0536 DIAGNOSTIC Get a fair and transparent estimate upfront

check engine light

P0536 code definition

The P0536 trouble code detects an issue with the A/C evaporator temperature sensor circuit.

What the P0536 code means

The P0536 code is a generic OBD-II trouble code that notes a problem with the A/C (air conditioner) evaporator temperature sensor. The temperature sensor is responsible for sending system voltage data to the powertrain control module (PCM), which then uses the information to help control the A/C system. When the PCM receives voltage readings that are excessively low or high, the P0536 trouble code will be detected.

What causes the P0536 code?

The P0536 trouble code is usually caused by a defective evaporator temperature sensor. However, there are a few other potential causes, such as:

  • Malfunctioning expansion valve (which results in an evaporator core freeze up)
  • Damaged electrical components, such as loose wires or corroded connectors
  • Overcharged A/C system
  • Low levels of refrigerant
  • Malfunctioning climate control head

What are the symptoms of the P0536 code?

The P0536 trouble code will usually be accompanied by the check engine soon Warning Light, and may also result in the A/C light on the climate controls flashing repeatedly. Most notably, when the P0536 code is detected, the air conditioning system will likely not be working. There may also be water drips from the system, which may be detectable from inside the vehicle.

How does a mechanic diagnose the P0536 code?

The P0536 could should be diagnosed with the assistance of an OBD-II trouble code scanner. A trained technician will look at the freeze frame data from the scanner to assess the code, and to look for any additional codes that have been detected. The codes should then be reset, and the vehicle should be restarted. If the P0536 code does not return, it was likely erroneously detected, or possibly an intermittent issue.

If the code does return, the mechanic will start by visually assessing the electrical components of the A/C system. All of the wires and connectors should be checked to make sure they are in proper condition and working well. Any electrical components that are not up to standards should be replaced. In addition to this, the technician should check the refrigerant levels, and add more refrigerant if necessary.

Following these steps, an A/C gauge should be connected to the vehicle. The car can then be turned on, and the A/C and blower speed set to their highest settings. The mechanic can compare these readings to the manufacturer’s settings to help determine where the issue is arising. It is likely that the issue is coming from a failed evaporator temperature sensor, but the readings can both confirm that, and let a technician know if a larger issue is causing the sensor failure.

After any and all repairs, the codes should be reset and the vehicle restarted before the mechanic continues.

Common mistakes when diagnosing the P0536 code

The most common mistake made when diagnosing the P0536 code comes from a failure to adhere to the OBD-II trouble code diagnosis protocol. The diagnosis protocol should always be followed exactly, to ensure that the inspection is performed correctly, and in the most efficient order.

It is fairly common for refrigerant to be added as a solution, even when the refrigerant levels are sufficient. This can result in excess refrigerant, which can be very harmful to the system.

How serious is the P0536 code?

A vehicle with the P0536 code is still very drivable, but the air conditioning system is unlikely to work. Since you never know when you’ll need your air conditioning, it’s important to have the system inspected and repaired as soon as possible.

What repairs can fix the P0536 code?

Some of the fixes for the P0536 code include:

Additional comments for consideration regarding the P0536 code

After the problem has been repaired, it’s a good idea for the mechanic to use the A/C gauge to make sure that all components are functioning properly.

Need help with a P0536 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

trouble codes
Check Engine Light
P0536

Fast and easy Check Engine Light is on Inspection service at your home or office.

SCHEDULE P0536 DIAGNOSTIC
Get a fair and transparent estimate upfront

Recent Check Engine Light is on Inspection reviews

Excellent Rating


YourMechanic Check Engine Light is on Inspection Service

Average Rating

4.5/5

Number of Reviews

3,484

Rating Summary
3,176
153
40
23
92
3,176
153
40
23
92

Richard

10 years of experience
415 reviews
Richard
10 years of experience
This is the second time I’ve had Richard work on my car. He always does an outstanding job and is quick, knowledgeable and professional. Highly recommended!!
2012 DODGE CHALLENGER - CHECK ENGINE LIGHT IS ON - LAS VEGAS, NEVADA

Michael

13 years of experience
372 reviews
Michael
13 years of experience
Mike was an absolute professional when he arrived. He walked me thru the whole process of my repairs and also made good recommendations for preventive issues. His mechanical knowledge and good customer services was a breath of air and greatly appreciated :-)
2007 CHEVROLET AVALANCHE - CHECK ENGINE LIGHT IS ON INSPECTION - MARIETTA, GEORGIA

Rodrigo

10 years of experience
85 reviews
Rodrigo
10 years of experience
Rodrigo was exactly on time, very professional and friendly. He assessed my car, let me know the exact problem when a previous mechanic from a shop in my area was unable to. I felt he was very honest and sincere letting me know the level of urgency that I deal with the issue. Absolutely no pressure. I will absolutely use Rodrigo the next time I need anything to do with my car and will tell everyone about him. This is such a great service, I will never go to another mechanic again. It is so convenient. I couldn’t be happier. :)
2013 SMART FORTWO - CHECK ENGINE LIGHT IS ON - LAS VEGAS, NEVADA

Ricardo

8 years of experience
223 reviews
Ricardo
8 years of experience
Great service and was very helpful on what maintenance my vehicle needed and what to expect in the future. Would definitely recommend to anyone and will.
2004 MITSUBISHI LANCER - CHECK ENGINE LIGHT IS ON - LOS ANGELES, CALIFORNIA

More related articles

P0222 OBD-II Trouble Code: Throttle/Pedal Position Switch/Sensor B Circuit Low Input
P0222 code definition Throttle/Pedal Position Switch/Sensor B Circuit Low Input What the P0222...
How to Buy Fuel Treatments
Adding a fuel additive to your gas tank when you fill up is one way to clean vital engine parts of deposits, improve the performance of your engine,...
Auto Safety Tips
Driving is more than a way to get from point A to point B. Owning and driving a car can also be a highly enjoyable experience. Whether a person is driving...

Related questions

Q: On slow moving traffic, when i release the brakes, the car has lags for half a second before take off... computer scan shows p2138

This code is related to a faulty throttle position sensor. The throttle position sensor (TPS) is a sensor used to monitor the throttle position of a vehicle. The sensor is usually located on the butterfly spindle/shaft so that it can...

Q: Can't read OBD code with my scanner.

These aftermarket type scanners may not access every vehicle out there. When you get a cannot communicate issue this is most likely the OBD adapter and the vehicle may be incompatible or the vehicle has problems. You would need to...

Q: My car just shut off while driving nd wont start bsk up dosent even crank over nothing at all turns on

Without additional detail, this would be tough to diagnose, however the fact that it just shut down out of nowhere as you've described suggests that some kind of sensor or relay may have triggered this. I would suggest having an...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com