AutoCodes – GMC – P2535 2014 GMC Sierra

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

Quick Answer

The Body Control Module (BCM) controls the ignition main relay through the control circuit by applying a voltage to the circuit. Common causes include Faulty Ignition On/Start Switch, Ignition On/Start Switch harness is open or shorted, Ignition On/Start Switch 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: P2535 2014 GMC Sierra indicates Ignition On/Start Switch Circuit High Voltage.
Common causes: Common causes include Faulty Ignition On/Start Switch, Ignition On/Start Switch harness is open or shorted, Ignition On/Start Switch 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.

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Code Popularity 279

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 12, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2535 2014 GMC Sierra Description

The Body Control Module (BCM) controls the ignition main relay through the control circuit by applying a voltage to the circuit. The control module samples the system voltage on the Ignition 1 voltage circuit from the ignition main relay every 0.1 s.
The Diagnostic Trouble Code (DTC) will be set when the control module detects greater than 6 V or greater on the ignition voltage circuit, with the ignition turned OFF.

OBDII Code P2535 2014 GMC Sierra - Ignition On/Start Switch Circuit High Voltage - AutoCodes.com — P2535 2014 GMC Sierra Code - Ignition On/Start Switch Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P2535 2014 GMC Sierra?

Faulty Ignition On/Start Switch
Ignition On/Start Switch harness is open or shorted
Ignition On/Start Switch circuit poor electrical connection
Faulty Body Control Module (BCM)

How to Fix the DTC P2535 2014 GMC Sierra?

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 P2535 2014 GMC Sierra 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 P2535 2014 GMC Sierra code?

Need more information on how to fix the P2535 2014 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

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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.