AutoCodes – Generic – P1533

P1533 Code - A/C Evaporator Temperature Sensor Circuit High Voltage

Quick Answer

The Heating, Ventilation, and Air Conditioning (HVAC) Control Module monitors the evaporator temperature via the evaporator temperature sensor. Common causes include Faulty A/C Evaporator Temperature Sensor, A/C Evaporator Temperature Sensor harness is open or shorted, A/C Evaporator Temperature Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P1533 indicates A/C Evaporator Temperature Sensor Circuit High Voltage.
Common causes
Common causes include Faulty A/C Evaporator Temperature Sensor, A/C Evaporator Temperature Sensor harness is open or shorted, A/C Evaporator Temperature Sensor circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 13,600
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 29, 2019
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Code P1533 Description

The Heating, Ventilation, and Air Conditioning (HVAC) Control Module monitors the evaporator temperature via the evaporator temperature sensor. When the air is cold, the sensor resistance and signal voltage are high. When the air is warm, the sensor resistance and signal are low.
OBDII Code P1533 - A/C Evaporator Temperature Sensor Circuit High Voltage - AutoCodes.com
P1533 Code - A/C Evaporator Temperature Sensor Circuit High Voltage

What are the Possible Causes of the DTC P1533?

  • Faulty A/C Evaporator Temperature Sensor
  • A/C Evaporator Temperature Sensor harness is open or shorted
  • A/C Evaporator Temperature Sensor circuit poor electrical connection

How to Fix the DTC P1533?

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 P1533 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 P1533 code?

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Need Help with the Code?

Get the P1533 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • P1533 Audi β€” Intake Camshaft Control Circuit Bank 2 Electrical Malfunction
  • P1533 BMW β€” Camshaft Position Actuator 'B' Control Circuit Signal Low Bank 2
  • P1533 Buick β€” A/C Evaporator Temperature Sensor Circuit High Voltage
  • P1533 Cadillac β€” A/C Evaporator Temperature Sensor Circuit High Voltage
  • P1533 Chevrolet β€” A/C Evaporator Temperature Sensor Circuit High Voltage
  • P1533 Ford β€” AAI Circuit Malfunction
  • P1533 GMC β€” A/C Evaporator Temperature Sensor Circuit High Voltage
  • P1533 Mercedes-Benz β€” Intake Camshaft Control Circuit Bank 2 Electrical Malfunction
  • P1533 MINI β€” Camshaft Position Actuator 'B' Control Circuit Signal Low Bank 2
  • P1533 Volkswagen β€” Intake Camshaft Control Circuit Bank 2 Electrical Malfunction
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 P1533 Code

1. What are common symptoms of OBDII code P1533 (A/C Evaporator Temperature Sensor Circuit High Voltage)?

- Common symptoms include the air conditioning system not cooling properly, strange odors coming from the vents, and the A/C compressor cycling on and off frequently.

2. What are the potential causes of OBDII code P1533?

- The code P1533 can be triggered by issues such as a faulty A/C evaporator temperature sensor, damaged wiring in the sensor circuit, or a malfunctioning HVAC control module.

3. How can I diagnose the root cause of OBDII code P1533?

- Diagnosis typically involves using a scan tool to retrieve the trouble codes, testing the A/C evaporator temperature sensor for proper function, and inspecting the wiring for any damage or loose connections.

4. Can I continue driving my vehicle with OBDII code P1533 present?

- While you may still be able to drive your vehicle with the code present, it is not recommended as it can lead to further damage to the A/C system and potential discomfort while driving in extreme temperatures.

5. Is it possible to clear OBDII code P1533 without fixing the underlying issue?

- Clearing the code without addressing the root cause is not recommended, as the issue will persist and the code is likely to return, potentially causing more serious problems over time.

6. What are some repair tips for fixing OBDII code P1533?

- Repair tips include checking and replacing the A/C evaporator temperature sensor if faulty, repairing any damaged wiring, and ensuring the HVAC control module is functioning correctly.

7. Can a DIY enthusiast fix OBDII code P1533 at home?

- Depending on your skill level and access to tools, it is possible to fix OBDII code P1533 at home by following repair guides and procedures specific to your vehicle model.

8. How much does it cost to repair OBDII code P1533 at a professional auto repair shop?

- Repair costs for OBDII code P1533 can vary depending on the root cause, but on average, you can expect to pay between $150 to $400 for parts and labor at a professional auto repair shop.

9. Will fixing OBDII code P1533 improve my vehicle's fuel efficiency?

- Fixing OBDII code P1533 may improve your vehicle's fuel efficiency if the issue was causing the A/C system to work harder than necessary, resulting in increased fuel consumption.

10. How can I prevent OBDII code P1533 from occurring in the future?

- To prevent OBDII code P1533, it's important to perform regular maintenance on your vehicle's A/C system, including checking the sensors, wiring, and HVAC components for any signs of wear or damage.

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