P2534 2015 GMC Sierra Code - Ignition On/Start Switch Circuit Low 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
- P2534 2015 GMC Sierra indicates Ignition On/Start Switch Circuit Low 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.
Code P2534 2015 GMC Sierra Description
The Diagnostic Trouble Code (DTC) will be set when the control module detects 6 V or less on the ignition voltage circuit, with the ignition, turned ON.
What are the Possible Causes of the DTC P2534 2015 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 P2534 2015 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 P2534 2015 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.
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Frequently Asked Questions about P2534 2015 GMC Sierra Code
1. What does the OBDII code P2534 mean on a 2015 GMC Sierra?
P2534 indicates an issue with the Ignition On/Start Switch Circuit, specifically low voltage detected by the vehicle's computer.
2. What are common symptoms of code P2534 in a 2015 GMC Sierra?
Common symptoms include difficulty starting the engine, intermittent stalling, a no-start condition, or the check engine light turning on.
3. What causes the P2534 code on a GMC Sierra?
Causes may include a faulty ignition switch, damaged wiring or connectors, a weak battery, or issues with the Body Control Module (BCM).
4. Can a weak battery trigger the P2534 code?
Yes, a weak or failing battery can cause low voltage issues, leading to the P2534 code.
5. How is the P2534 code diagnosed on a 2015 GMC Sierra?
Technicians will inspect the ignition switch, check for damaged wiring, test voltage levels, and possibly scan the BCM for related faults.
6. Can you drive with the P2534 code active on a GMC Sierra?
Driving with this code is not recommended as it can lead to engine stalling or failure to start, potentially leaving you stranded.
7. How do you fix the P2534 code in a 2015 GMC Sierra?
Repairs may include replacing the ignition switch, repairing damaged wiring, charging or replacing the battery, or addressing BCM issues.
8. How much does it cost to fix the P2534 code on a GMC Sierra?
Repair costs vary depending on the issue, but ignition switch replacement typically ranges from $150 to $300, excluding labor.
9. Can a faulty Body Control Module (BCM) cause the P2534 code?
Yes, a malfunctioning BCM can lead to communication issues and trigger the P2534 code.
10. How can I prevent the P2534 code on my GMC Sierra?
Regular maintenance, including checking battery health and inspecting wiring connections, can help prevent this code from occurring.
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