P2535 GMC Code - Ignition On/Start Switch Circuit High Voltage
Quick Answer
The P2535 diagnostic trouble code for GMC vehicles relates to the ignition on/start switch circuit having a high voltage. Common causes include Faulty ignition switch, Damaged wiring in the ignition switch circuit, Malfunctioning ECM. 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 GMC indicates Ignition On/Start Switch Circuit High Voltage.
- Common causes
- Common causes include Faulty ignition switch, Damaged wiring in the ignition switch circuit, Malfunctioning ECM.
- 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 P2535 GMC Description
The P2535 diagnostic trouble code for GMC vehicles relates to the ignition on/start switch circuit having a high voltage. In simpler terms, this means that the voltage level in the circuit responsible for the ignition switch or start switch is higher than the normal operating range. The ignition switch is a crucial component that allows the driver to start the vehicle by turning the key. When this circuit has a high voltage, it can lead to various issues that affect the vehicle's performance.
Common Causes of P2535 GMC
- Faulty ignition switch.
- Damaged wiring in the ignition switch circuit.
- Malfunctioning ECM.
- Problem with the start switch.
Symptoms of P2535 GMC
- Difficulty starting the vehicle or intermittent starting issues.
- Vehicle not starting at all.
- Illumination of the check engine light on the dashboard.
- Electrical issues such as power windows or lights not functioning properly.
How to Fix P2535 GMC
- Diagnose the issue using a scan tool to retrieve the specific trouble code and pinpoint the exact cause of the high voltage in the ignition on/start switch circuit.
- Inspect the ignition switch and wiring for any visible damage or signs of wear. Replace any faulty components as needed.
- Test the ECM and start switch for proper functionality. Replace them if they are found to be the cause of the high voltage issue.
- Clear the trouble code from the vehicle's ECM memory and perform a test drive to ensure that the issue has been resolved.
Cost to Fix P2535 GMC
The typical repair costs for addressing the P2535 code can range from $150 to $500, depending on the specific cause of the issue and the parts that need to be replaced. Labor costs can vary based on the location, vehicle make and model, and the rates of the repair shop. It is advisable to check with local auto repair shops for more accurate estimates.
Tech Notes for P2535 GMC
2016-2018 GMC Sierra 1500
2019 GMC Sierra Limited
Dead Battery / P1682 P129D P10E4 P2535 / Crank No Start
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Information for Specific GMC Models
- P2535 2014 GMC Sierra — Ignition On/Start Switch Circuit High Voltage
- P2535 2015 GMC Sierra — Ignition On/Start Switch Circuit High Voltage
- P2535 2016 GMC Sierra — Ignition On/Start Switch Circuit High Voltage
- P2535 2017 GMC Sierra — Ignition On/Start Switch Circuit High Voltage
- P2535 2018 GMC Sierra — Ignition On/Start Switch Circuit High Voltage
Frequently Asked Questions about P2535 GMC Code
1. What are the common symptoms of OBDII code P2535 GMC?
Symptoms of code P2535 may include difficulty starting the vehicle, the engine not turning over, or the vehicle stalling unexpectedly.
2. What can cause the ignition On/Start switch circuit high voltage issue (P2535) in a GMC?
Possible causes of P2535 include a faulty ignition switch, damaged wiring or connectors in the ignition switch circuit, or a malfunctioning ignition switch module.
3. How serious is the P2535 GMC trouble code?
The P2535 code should be addressed promptly as it can lead to issues with starting the vehicle or cause unexpected stalling, potentially leaving you stranded.
4. How can I diagnose the OBDII code P2535 GMC?
Diagnosing code P2535 typically involves using a scan tool to check for the code, inspecting the ignition switch and related wiring, and testing the ignition switch module for proper function.
5. Can I continue driving with the P2535 trouble code?
It is not recommended to drive with the P2535 code present, as it can lead to unreliable vehicle starting and potential stalling, posing a safety risk.
6. How can I repair the ignition On/Start switch circuit high voltage issue (P2535) in my GMC?
Repairing P2535 often involves replacing the faulty ignition switch, repairing damaged wiring or connectors, or replacing the ignition switch module if necessary.
7. Will resetting the trouble codes clear P2535 permanently?
Resetting the trouble codes may temporarily clear the P2535 code, but if the underlying issue is not addressed, the code is likely to return.
8. Can a DIY enthusiast fix the P2535 GMC trouble code at home?
Depending on your skill level and access to tools, some DIY enthusiasts may be able to diagnose and repair the P2535 code at home. However, if in doubt, it's best to consult a professional mechanic.
9. How much does it cost to fix the ignition On/Start switch circuit high voltage issue (P2535) at a repair shop?
The cost of repairing P2535 can vary depending on the exact cause of the issue, but it may range from a couple of hundred to a few hundred dollars at a repair shop.
10. How can I prevent the OBDII code P2535 GMC from occurring in the future?
To prevent the recurrence of P2535, it's essential to address any underlying issues promptly, perform regular maintenance on the ignition system, and avoid rough handling of the ignition switch.
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