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Engine-Codes – Generic – P1532

P1532 Code - A/C Evaporator Temperature Sensor Circuit Low Voltage

Quick Answer

When the diagnostic trouble code P1532 appears, it indicates a problem with the A/C evaporator temperature sensor circuit registering a low voltage. Common causes include Faulty A/C evaporator temperature sensor, Wiring or connection issues in the sensor circuit, Corrosion or damage to sensor connectors. 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
P1532 indicates A/C Evaporator Temperature Sensor Circuit Low Voltage.
Common causes
Common causes include Faulty A/C evaporator temperature sensor, Wiring or connection issues in the sensor circuit, Corrosion or damage to sensor connectors.
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.
What is this?
Table of contents Created and updated by William Orellana on Aug 30, 2024
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Code P1532 Description

When the diagnostic trouble code P1532 appears, it indicates a problem with the A/C evaporator temperature sensor circuit registering a low voltage. The A/C evaporator temperature sensor plays a crucial role in monitoring the temperature of the evaporator in the air conditioning system. This sensor helps regulate the operation of the A/C system, ensuring optimal cooling performance and preventing issues such as freezing of the evaporator coil.

OBDII Code P1532 - A/C Evaporator Temperature Sensor Circuit Low Voltage
P1532 Code - A/C Evaporator Temperature Sensor Circuit Low Voltage

Common Causes of P1532

  1. Faulty A/C evaporator temperature sensor
  2. Wiring or connection issues in the sensor circuit
  3. Corrosion or damage to sensor connectors
  4. Electrical issues such as a blown fuse related to the sensor
  5. Problems with the A/C control module

Symptoms of P1532

  1. Reduced cooling performance from the A/C system
  2. Inconsistent temperature output from the vents
  3. A/C system may intermittently stop working
  4. Unusual odors coming from the A/C vents
  5. Check Engine Light illuminated on the dashboard

How to Fix P1532

  1. Begin by diagnosing the root cause of the issue using a diagnostic scanner to confirm the P1532 code.
  2. Inspect the A/C evaporator temperature sensor and its wiring for any signs of damage or corrosion.
  3. Check the sensor connectors and wiring harness for secure connections and proper continuity.
  4. Replace the A/C evaporator temperature sensor if it is found to be faulty or damaged.
  5. Clear the trouble code from the vehicle's computer system and test the A/C system to ensure proper operation.

Cost to Fix P1532

The typical repair costs for addressing a P1532 code related to the A/C evaporator temperature sensor circuit low voltage can range from $150 to $300, depending on the specific cause of the issue and the cost of parts and labor in your area. It's important to note that diagnostic time and labor rates at auto repair shops can vary, so it's recommended to obtain quotes from local shops for a more accurate estimate.

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Code P1532 Information for Specific Makes

  • P1532 Audi — Idle Control Lean Running Speed Below Specification
  • P1532 BMW — Camshaft Position Actuator 'B' Control Open Circuit Bank 2
  • P1532 Buick — A/C Evaporator Temperature Sensor Circuit Low Voltage
  • P1532 Cadillac — A/C Evaporator Temperature Sensor Circuit Low Voltage
  • P1532 Chevrolet — A/C Evaporator Temperature Sensor Circuit Low Voltage
  • P1532 Ford — Intake Manifold Communication Control Circuit Bank 2
  • P1532 GMC — A/C Evaporator Temperature Sensor Circuit Low Voltage
  • P1532 Hyundai — Electronic Throttle Control System Malfunction Throttle Valve Stuck
  • P1532 Jaguar — Intake Manifold Communication Control Circuit Bank 2
  • P1532 Mazda — Intake Manifold Communication Control Circuit Bank 2
  • P1532 MINI — Camshaft Position Actuator 'B' Control Open Circuit Bank 2
  • P1532 Saab — Accelerator Pedal Position Sensor 1 & 2 Short Circuit
  • P1532 Volkswagen — Idle Control Lean Running Speed Below Specification
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 P1532 Code

1. What are the common symptoms of OBDII code P1532 (A/C Evaporator Temperature Sensor Circuit Low Voltage)?

Symptoms may include poor air conditioning performance, inconsistent cooling, or the A/C system not working at all.

2. What are some possible causes of OBDII code P1532?

Potential causes include a faulty A/C evaporator temperature sensor, damaged wiring or connectors in the sensor circuit, or issues with the A/C control module.

3. How can I diagnose OBDII code P1532?

Diagnosis typically involves using a scan tool to retrieve the trouble code, inspecting the A/C evaporator temperature sensor and its wiring, and testing the sensor for proper operation.

4. Can OBDII code P1532 be triggered by a bad A/C compressor?

While a malfunctioning A/C compressor may affect the overall performance of the A/C system, it is unlikely to directly cause code P1532. Focus on checking the evaporator temperature sensor and related components.

5. What are some repair tips for addressing OBDII code P1532?

Start by checking the sensor's wiring and connectors for any damage or corrosion. If no issues are found, consider replacing the A/C evaporator temperature sensor itself.

6. Is it safe to continue driving with OBDII code P1532 present?

It is generally not recommended to ignore this code, as it can lead to further A/C system problems and discomfort while driving in hot weather. Address the issue promptly to restore proper A/C functionality.

7. Can a DIY enthusiast fix OBDII code P1532 at home?

Depending on your skill level and access to tools, you may be able to diagnose and repair this code yourself. However, if you're unsure or uncomfortable working on the A/C system, it's best to seek professional assistance.

8. Will resetting the OBDII code P1532 clear the issue permanently?

Simply clearing the code without addressing the underlying problem will likely result in the code reappearing once the issue is detected again. It's important to diagnose and fix the root cause of the code.

9. How long does it typically take to repair OBDII code P1532?

The repair time can vary based on the exact cause of the code and your level of experience. In general, diagnosing and fixing this issue can take anywhere from 1 to 3 hours.

10. Is it necessary to visit a dealership for OBDII code P1532 repairs?

While a dealership can certainly help diagnose and repair this code, many independent auto repair shops and experienced technicians can also effectively address the issue. Choose a reputable professional with experience in A/C system diagnostics and repairs.

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