P2535 2018 GMC Sierra Code - Ignition On/Start Switch Circuit High Voltage
Quick Answer
The diagnostic trouble code P2535 in a 2018 GMC Sierra indicates a problem with the Ignition On/Start Switch Circuit High Voltage. Common causes include Faulty ignition switch, Damaged wiring in the ignition switch circuit, Short circuit in the system. 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 2018 GMC Sierra indicates Ignition On/Start Switch Circuit High Voltage.
- Common causes
- Common causes include Faulty ignition switch, Damaged wiring in the ignition switch circuit, Short circuit in the system.
- 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 2018 GMC Sierra Description
The diagnostic trouble code P2535 in a 2018 GMC Sierra indicates a problem with the Ignition On/Start Switch Circuit High Voltage. This code is triggered when the voltage in the ignition switch circuit is higher than the specified limit. The ignition switch is a crucial component that allows the driver to start the vehicle by turning the key. When this circuit has high voltage, it can lead to issues with starting the vehicle, as well as potentially causing damage to other electrical components in the system.
Common Causes of P2535 2018 GMC Sierra
- Faulty ignition switch
- Damaged wiring in the ignition switch circuit
- Short circuit in the system
- Malfunctioning ignition switch relay
- Corrosion or loose connections in the circuit
Symptoms of P2535 2018 GMC Sierra
- Difficulty starting the vehicle
- Intermittent stalling
- Check engine light illuminated
- Electrical issues such as power windows not working properly
- Loss of power to various accessories in the vehicle
How to Fix P2535 2018 GMC Sierra
- Begin by diagnosing the issue using a diagnostic scanner to retrieve the trouble codes and pinpoint the exact cause of the high voltage in the ignition switch circuit.
- Inspect the ignition switch, wiring, and relay for any visible damage or corrosion. Replace any components that are faulty.
- Test the circuit for continuity and voltage to ensure proper function.
- Clear the trouble codes from the vehicle's computer and test the vehicle to ensure the issue has been resolved.
- If the problem persists, consult a professional mechanic for further diagnosis and repair.
Cost to Fix P2535 2018 GMC Sierra
The typical repair costs for addressing the P2535 code in a 2018 GMC Sierra can vary depending on the specific cause of the issue. On average, the cost of parts for this repair can range from $50 to $200, while labor costs can range from $100 to $300. However, it's important to note that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and the extent of the repairs needed. Additionally, diagnostic time and labor rates at auto repair shops can vary, with rates typically ranging between $80 and $150 per hour. It's recommended to obtain quotes from local auto repair shops for a more accurate estimate.
Tech Notes for P2535 2018 GMC Sierra
2016-2018 Chevrolet Silverado 1500
2019 Chevrolet Silverado LD
Dead Battery / P1682 P129D P10E4 P2535 / Crank No Start
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Frequently Asked Questions about P2535 2018 GMC Sierra Code
1. What does the OBDII code P2535 mean for a 2018 GMC Sierra?
P2535 indicates a high voltage issue in the ignition on/start switch circuit, which may affect the vehicle's ability to start or operate properly.
2. What are the common symptoms of code P2535 in a 2018 GMC Sierra?
Symptoms include difficulty starting the vehicle, intermittent stalling, or the check engine light being illuminated.
3. What causes the P2535 code to appear in the GMC Sierra?
Common causes include a faulty ignition switch, damaged wiring or connectors in the ignition circuit, or a failing powertrain control module (PCM).
4. Can a bad battery cause the P2535 code on a GMC Sierra?
While less common, a weak or failing battery can cause voltage irregularities that might trigger this code.
5. How do you diagnose the P2535 code on a 2018 GMC Sierra?
Diagnosis involves checking the ignition switch, inspecting wiring and connectors for damage or corrosion, and testing the voltage within the ignition circuit.
6. Can I drive my GMC Sierra with the P2535 code?
Driving is possible but not recommended, as the issue could lead to starting problems or engine stalling, which may leave you stranded.
7. How is the P2535 code typically fixed on a GMC Sierra?
Repairs may include replacing the ignition switch, repairing damaged wiring, or reprogramming or replacing the PCM if necessary.
8. How much does it cost to fix the P2535 code on a 2018 GMC Sierra?
Repair costs vary but typically range from $100 to $300 for parts and labor, depending on the exact cause of the issue.
9. Can I reset the P2535 code without fixing the problem?
Clearing the code without addressing the issue may temporarily turn off the check engine light, but the problem will likely recur.
10. Is the P2535 code related to the starter in a GMC Sierra?
While not directly related, issues with the ignition circuit could impact the starter’s operation and cause starting problems.
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