P2537 GMC Code - Ignition Accessory Switch Circuit Low Voltage
Quick Answer
The control module continuously monitors the voltage on the Ignition Accessory/Run circuit from the Body Control Module (BCM). Common causes include Faulty Body Control Module (BCM), Body Control Module harness is open or shorted, Body Control Module 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
- P2537 GMC indicates Ignition Accessory Switch Circuit Low Voltage.
- Common causes
- Common causes include Faulty Body Control Module (BCM), Body Control Module harness is open or shorted, Body Control Module 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 P2537 GMC Description
What are the Possible Causes of the DTC P2537 GMC?
- Faulty Body Control Module (BCM)
- Body Control Module harness is open or shorted
- Body Control Module circuit poor electrical connection
How to Fix the DTC P2537 GMC?
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 P2537 GMC 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 P2537 GMC code?
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Need Help with the Code?
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Information for Specific GMC Models
- P2537 2014 GMC Sierra — Ignition Accessory Switch Circuit Low Voltage
- P2537 2015 GMC Sierra — Ignition Accessory Switch Circuit Low Voltage
- P2537 2016 GMC Sierra — Ignition Accessory Switch Circuit Low Voltage
- P2537 2017 GMC Sierra — Ignition Accessory Switch Circuit Low Voltage
- P2537 2018 GMC Sierra — Ignition Accessory Switch Circuit Low Voltage
Frequently Asked Questions about P2537 GMC Code
1. What are the common symptoms of OBDII code P2537 GMC?
- The common symptoms of code P2537 include difficulty starting the vehicle, stalling while driving, and issues with accessories like power windows and radio.
2. What can cause the ignition accessory switch circuit low voltage error code?
- The most common causes of P2537 include a faulty ignition switch, damaged wiring or connectors, or a malfunctioning ignition accessory power relay.
3. How can I diagnose the P2537 GMC code?
- To diagnose P2537, start by checking the ignition switch and related wiring for any visible damage. Use a multimeter to test the voltage at various points in the circuit to pinpoint the issue.
4. Can a weak battery cause the ignition accessory switch circuit low voltage code?
- Yes, a weak or failing battery can sometimes trigger the P2537 code by providing insufficient voltage to the ignition accessory circuit. It's important to test and ensure the battery is in good condition.
5. Is it safe to continue driving with OBDII code P2537 present?
- It is not recommended to continue driving with the P2537 code active, as it can lead to potential issues with starting the vehicle or loss of power to essential accessories while driving.
6. How can I repair the ignition accessory switch circuit low voltage issue?
- Repairing P2537 involves fixing the underlying cause, which may include replacing the ignition switch, repairing damaged wiring, or replacing faulty relays. It's best to consult a professional if you're not familiar with automotive electrical systems.
7. Can a DIY enthusiast fix the P2537 code at home?
- Depending on your level of experience with automotive repairs, you may be able to address the P2537 code at home. However, electrical issues can be complex, so it's advisable to seek professional help if you're unsure.
8. Will resetting the OBDII code P2537 make it go away permanently?
- Resetting the P2537 code may temporarily turn off the check engine light, but if the underlying issue is not addressed, the code is likely to reappear. It's essential to diagnose and fix the root cause of the problem.
9. How much does it typically cost to repair OBDII code P2537 GMC at a repair shop?
- The cost of repairing P2537 can vary depending on the specific cause of the issue and the labor rates of the repair shop. It's best to get a diagnostic assessment to receive an accurate cost estimate.
10. Can a bad ignition accessory switch affect other vehicle systems besides the accessories?
- Yes, a malfunctioning ignition accessory switch can potentially impact other vehicle systems, such as the ignition system, fuel delivery, and even the engine's overall performance. It's crucial to address the issue promptly.
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