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P2537 2014 GMC Sierra Code - Ignition Accessory Switch Circuit Low Voltage

Quick Answer

The P2537 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates a problem with the Ignition Accessory Switch Circuit having low voltage. Common causes include Faulty ignition switch, Wiring issues or loose connections in the Ignition Accessory Switch Circuit, Defective accessory relay. 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
P2537 2014 GMC Sierra indicates Ignition Accessory Switch Circuit Low Voltage.
Common causes
Common causes include Faulty ignition switch, Wiring issues or loose connections in the Ignition Accessory Switch Circuit, Defective accessory relay.
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 Sep 17, 2024
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Code P2537 2014 GMC Sierra Description

The P2537 diagnostic trouble code (DTC) for a 2014 GMC Sierra indicates a problem with the Ignition Accessory Switch Circuit having low voltage. In simpler terms, this code suggests that there is an issue with the electrical circuit responsible for providing power to accessories when the ignition is turned on. This can affect various systems in the vehicle that rely on this circuit, such as the radio, power windows, and interior lights.

OBDII Code P2537 2014 GMC Sierra - Ignition Accessory Switch Circuit Low Voltage
P2537 2014 GMC Sierra Code - Ignition Accessory Switch Circuit Low Voltage

Common Causes of P2537 2014 GMC Sierra

  1. Faulty ignition switch
  2. Wiring issues or loose connections in the Ignition Accessory Switch Circuit
  3. Defective accessory relay
  4. Faulty ignition switch actuator
  5. Battery issues affecting voltage supply

Symptoms of P2537 2014 GMC Sierra

  1. Accessories not working properly or intermittently (e.g., radio cutting out, power windows not functioning)
  2. Battery draining faster than usual
  3. Dashboard warning light illuminated
  4. Difficulty starting the vehicle

How to Fix P2537 2014 GMC Sierra

  1. Begin by conducting a thorough inspection of the Ignition Accessory Switch Circuit, checking for any loose connections or damaged wiring.
  2. Test the ignition switch and accessory relay to determine if they are functioning correctly. Replace any faulty components.
  3. Check the battery voltage and ensure it is within the proper range. Address any battery issues if necessary.
  4. Reset the DTC and test the vehicle to confirm that the issue has been resolved.
  5. If the problem persists, consult a professional mechanic for further diagnosis and repair.

Cost to Fix P2537 2014 GMC Sierra

The typical repair costs for addressing the P2537 code on a 2014 GMC Sierra can vary depending on the specific cause of the issue. In general, the cost of parts for this repair can range from $50 to $200, while labor costs can range from $100 to $300. Overall, the total cost of addressing this code can be anywhere from $150 to $500. It is important to note that these estimates are rough averages, and actual costs may vary based on factors such as location, vehicle make and model, and the extent of the repair needed. It is advisable to consult with a trusted auto repair shop for a more accurate cost estimate.

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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 P2537 2014 GMC Sierra Code

1. What are the common symptoms of OBDII code P2537 (2014 GMC Sierra)?

The common symptoms of OBDII code P2537 include issues with starting the vehicle, intermittent loss of power, and problems with the electrical accessories.

2. What could cause the OBDII code P2537 in a 2014 GMC Sierra?

The OBDII code P2537 in a 2014 GMC Sierra is typically caused by a faulty ignition accessory switch, low voltage in the circuit, or wiring issues.

3. How can I diagnose the Ignition Accessory Switch Circuit Low Voltage issue in my GMC Sierra?

To diagnose the Ignition Accessory Switch Circuit Low Voltage problem, you can use a diagnostic scanner to read the trouble codes, inspect the wiring for any damage, and test the ignition switch for proper functionality.

4. Can a bad battery cause the OBDII code P2537 to appear in a 2014 GMC Sierra?

Yes, a weak or faulty battery can sometimes trigger the OBDII code P2537 due to low voltage levels affecting the ignition accessory switch circuit.

5. What are some repair tips for fixing the Ignition Accessory Switch Circuit Low Voltage problem in a GMC Sierra?

Repair tips for addressing the P2537 code include checking and replacing the ignition accessory switch if necessary, repairing any damaged wiring, and ensuring the battery is in good condition.

6. Is it safe to continue driving my GMC Sierra with the OBDII code P2537 present?

It is not recommended to continue driving your GMC Sierra with the OBDII code P2537 present, as it can lead to potential issues with starting the vehicle or loss of power while driving.

7. Can a DIY enthusiast fix the OBDII code P2537 issue in a 2014 GMC Sierra?

Depending on your experience and skills, a DIY enthusiast may be able to address the OBDII code P2537 by following repair guides and using the necessary tools for diagnosis and repair.

8. How much does it typically cost to repair the Ignition Accessory Switch Circuit Low Voltage problem in a GMC Sierra?

The cost of repairing the Ignition Accessory Switch Circuit Low Voltage issue in a GMC Sierra can vary depending on the root cause of the problem, but it may range from $100 to $300 for parts and labor.

9. Will resetting the OBDII codes make the P2537 code disappear permanently?

Resetting the OBDII codes may temporarily clear the P2537 code, but if the underlying issue causing the code is not fixed, it is likely to reappear after driving the vehicle for some time.

10. What are the implications of ignoring the OBDII code P2537 in a 2014 GMC Sierra?

Ignoring the OBDII code P2537 in a 2014 GMC Sierra can lead to potential starting problems, electrical issues, and safety concerns while driving, so it is advisable to address the problem promptly.

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