P2534 2016 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 2016 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 2016 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 2016 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 2016 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 2016 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 2016 GMC Sierra Code
1. What does the OBDII code P2534 mean on a 2016 GMC Sierra?
P2534 indicates that the Powertrain Control Module (PCM) has detected low voltage in the Ignition On/Start Switch Circuit.
2. What are the common symptoms of code P2534 in a 2016 GMC Sierra?
Common symptoms include difficulty starting the vehicle, intermittent stalling, a no-start condition, or the Check Engine Light turning on.
3. What causes the P2534 code on a 2016 GMC Sierra?
Possible causes include a faulty ignition switch, damaged or corroded wiring in the ignition circuit, a weak battery, or a malfunctioning PCM.
4. Can a bad battery trigger code P2534 in a 2016 GMC Sierra?
Yes, a weak or failing battery can lead to low voltage in the ignition circuit, potentially triggering the P2534 code.
5. How can I diagnose code P2534 on my 2016 GMC Sierra?
Start by checking the battery voltage and connections, inspecting ignition switch wiring for damage or corrosion, and using a scan tool to monitor the ignition circuit voltage.
6. Can I drive my 2016 GMC Sierra with a P2534 code?
Driving with this code is not recommended, as it can cause starting issues or lead to stalling, which may compromise safety.
7. How do I fix code P2534 on a 2016 GMC Sierra?
Repairs may include replacing a faulty ignition switch, repairing or replacing damaged wiring, cleaning corroded connections, or recharging/replacing the battery.
8. Is the ignition switch the most common culprit for code P2534 in a 2016 GMC Sierra?
Yes, a faulty ignition switch is one of the most common causes of this code, but the issue could also stem from wiring or battery problems.
9. How much does it cost to repair code P2534 on a 2016 GMC Sierra?
Repair costs vary but may range from $150 to $500, depending on whether the issue involves the ignition switch, wiring repairs, or battery replacement.
10. Can a faulty PCM cause code P2534 on a 2016 GMC Sierra?
While rare, a malfunctioning PCM could cause this code. However, it is more likely to be an issue with the ignition switch or circuit wiring.
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