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Engine-Codes – GMC – P2535 2014 GMC Sierra

P2535 2014 GMC Sierra Code - Ignition On/Start Switch Circuit High Voltage

Quick Answer

The diagnostic trouble code P2535 in a 2014 GMC Sierra indicates a problem with the Ignition On/Start Switch Circuit High Voltage. Common causes include Faulty ignition switch, Damaged wiring or connectors in the ignition switch circuit, Corrosion in the electrical connections. 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
P2535 2014 GMC Sierra indicates Ignition On/Start Switch Circuit High Voltage.
Common causes
Common causes include Faulty ignition switch, Damaged wiring or connectors in the ignition switch circuit, Corrosion in the electrical connections.
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 13, 2024
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Code P2535 2014 GMC Sierra Description

The diagnostic trouble code P2535 in a 2014 GMC Sierra indicates a problem with the Ignition On/Start Switch Circuit High Voltage. This code is triggered when the powertrain control module (PCM) detects that the voltage signal from the ignition switch is higher than the specified range. The ignition switch is a crucial component that allows the driver to start the vehicle and control various electrical systems. When this circuit has high voltage, it can lead to issues with starting the vehicle, as well as affecting other electrical components.

OBDII Code P2535 2014 GMC Sierra - Ignition On/Start Switch Circuit High Voltage
P2535 2014 GMC Sierra Code - Ignition On/Start Switch Circuit High Voltage

Common Causes of P2535 2014 GMC Sierra

  1. Faulty ignition switch
  2. Damaged wiring or connectors in the ignition switch circuit
  3. Corrosion in the electrical connections
  4. Malfunctioning PCM
  5. Electrical short circuits

Symptoms of P2535 2014 GMC Sierra

  1. Engine cranks but does not start
  2. Intermittent starting issues
  3. Illumination of the Check Engine Light
  4. Loss of power to electrical components
  5. Inability to turn the ignition key

How to Fix P2535 2014 GMC Sierra

  1. Diagnose the issue by using a scan tool to retrieve the trouble codes and perform a thorough inspection of the ignition switch circuit.
  2. Test the voltage output of the ignition switch to determine if it is within the specified range.
  3. Inspect the wiring and connectors for any damage or corrosion, and repair or replace as necessary.
  4. Replace the ignition switch if it is found to be faulty.
  5. Clear the trouble codes from the PCM and test the vehicle to ensure the issue has been resolved.

Cost to Fix P2535 2014 GMC Sierra

The typical repair costs for addressing the Ignition On/Start Switch Circuit High Voltage issue in a 2014 GMC Sierra can range from $150 to $400, including parts and labor. However, it is important to note that the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It is recommended to check with local auto repair shops for a more accurate estimate. Labor rates typically range between $80 and $150 per hour, with rates potentially higher at dealerships or metropolitan areas and lower at independent shops.

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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 P2535 2014 GMC Sierra Code

1. What are common symptoms of OBDII code P2535 in a 2014 GMC Sierra?

- Common symptoms include illuminated check engine light, difficulty starting the vehicle, and potential loss of power.

2. What does the OBDII code P2535 for a 2014 GMC Sierra indicate?

- The code P2535 indicates a problem with the Ignition On/Start Switch Circuit High Voltage in the vehicle.

3. What are some possible causes of OBDII code P2535 in a 2014 GMC Sierra?

- Possible causes include a faulty ignition switch, damaged wiring or connectors in the ignition circuit, or a malfunctioning ignition control module.

4. How can I diagnose the issue related to OBDII code P2535 in my 2014 GMC Sierra?

- To diagnose the issue, you may need to perform a thorough inspection of the ignition system, test the voltage levels in the circuit, and check for any wiring or connector damage.

5. Can I continue driving my 2014 GMC Sierra with OBDII code P2535?

- It is not recommended to drive the vehicle with this code present, as it can lead to potential starting issues or loss of power while driving.

6. How can I repair OBDII code P2535 in my 2014 GMC Sierra?

- Repair methods may involve replacing the faulty ignition switch, repairing damaged wiring or connectors, or addressing any issues with the ignition control module.

7. Is it safe to reset the OBDII code P2535 in my 2014 GMC Sierra using a scanner?

- While you can reset the code with a scanner, it is important to diagnose and address the underlying issue causing the code before resetting it to prevent further problems.

8. Will OBDII code P2535 cause any long-term damage to my 2014 GMC Sierra if left unaddressed?

- Leaving the issue unresolved can potentially lead to further electrical problems or starting issues, which may cause damage to other components over time.

9. Can weather conditions affect the occurrence of OBDII code P2535 in a 2014 GMC Sierra?

- Extreme weather conditions or moisture exposure can sometimes exacerbate electrical issues, potentially leading to the triggering of the code.

10. How much can I expect to pay for repairs related to OBDII code P2535 in my 2014 GMC Sierra?

- Repair costs can vary depending on the exact cause of the issue, but it is advisable to consult a mechanic for an accurate diagnosis and cost estimate.

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