AutoCodes – Pontiac – P2535 Pontiac

P2535 Pontiac 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 Pontiac 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 1,715

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 Pontiac 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 Pontiac - Ignition On/Start Switch Circuit High Voltage - AutoCodes.com — P2535 Pontiac Code - Ignition On/Start Switch Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P2535 Pontiac?

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 Pontiac?

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 Pontiac 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 Pontiac code?

Need more information on how to fix the P2535 Pontiac 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 Pontiac Code

1. What are the common symptoms of OBDII code P2535 in a Pontiac related to the Ignition On/Start Switch Circuit High Voltage?

- Common symptoms include difficulty starting the vehicle, intermittent start issues, and the engine stalling unexpectedly.

2. What are the possible causes of OBDII code P2535 in a Pontiac?

- The potential causes of this code include a faulty ignition switch, a short circuit in the ignition switch circuit, or a problem with the wiring harness.

3. How can I diagnose the issue causing OBDII code P2535 in my Pontiac?

- To diagnose the problem, you can use a diagnostic scanner to read the code, check the wiring and connectors for any visible damage, and test the ignition switch for proper functionality.

4. Can driving with OBDII code P2535 in a Pontiac cause further damage to the vehicle?

- It is not recommended to drive with this code as it may lead to sudden stalling of the engine, which can be dangerous. It is best to address the issue promptly.

5. Is it safe to continue driving my Pontiac with the Ignition On/Start Switch Circuit High Voltage code pending?

- It is not advisable to drive the vehicle with any pending codes, as they indicate an underlying issue that needs to be resolved to ensure safe operation of the vehicle.

6. How much does it typically cost to repair OBDII code P2535 in a Pontiac?

- The cost of repairing this code can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

7. Can I reset OBDII code P2535 in my Pontiac by disconnecting the battery?

- While disconnecting the battery may clear the code temporarily, it is not a permanent solution. It is essential to diagnose and repair the underlying issue to prevent the code from coming back.

8. Are there any DIY repair tips for fixing OBDII code P2535 in a Pontiac?

- DIY enthusiasts can attempt to inspect the wiring harness for damage, check the ignition switch for proper operation, and replace any faulty components to resolve the issue.

9. Will OBDII code P2535 prevent my Pontiac from passing an emissions test?

- Yes, this code can cause your vehicle to fail an emissions test as it indicates a malfunction in the ignition system, which is crucial for proper engine performance.

10. How long does it typically take to repair OBDII code P2535 in a Pontiac?

- The repair time can vary depending on the exact cause of the issue and the availability of parts, but it may take a professional mechanic around 1 to 2 hours to diagnose and fix the problem.