AutoCodes – GMC – P2537 2014 GMC Sierra

P2537 2014 GMC Sierra 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 2014 GMC Sierra 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.

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Code Popularity 187

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 21, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2537 2014 GMC Sierra Description

The control module continuously monitors the voltage on the Ignition Accessory/Run circuit from the Body Control Module (BCM). When the ignition is in the ACCESSORY or RUN position, the BCM sends a 12 V wake-up signal to the control module. This wake-up signal allows the control module to power up and start functioning before the engine is started. The Diagnostic Trouble Code (DTC) will be set when the control module detects the Ignition Accessory/Run circuit is less than 6 V for 1 min.

OBDII Code P2537 2014 GMC Sierra - Ignition Accessory Switch Circuit Low Voltage - AutoCodes.com — P2537 2014 GMC Sierra Code - Ignition Accessory Switch Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P2537 2014 GMC Sierra?

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 2014 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 P2537 2014 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.

Need more information about the P2537 2014 GMC Sierra code?

Need more information on how to fix the P2537 2014 GMC Sierra code? Get Access to Factory Service Manuals

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2537 2014 GMC Sierra Code

1. What are the common symptoms of OBDII code P2537 (2014 GMC Sierra)?

The common symptoms of OBDII code P2537 include issues with starting the vehicle, intermittent loss of power, and problems with the electrical accessories.

2. What could cause the OBDII code P2537 in a 2014 GMC Sierra?

The OBDII code P2537 in a 2014 GMC Sierra is typically caused by a faulty ignition accessory switch, low voltage in the circuit, or wiring issues.

3. How can I diagnose the Ignition Accessory Switch Circuit Low Voltage issue in my GMC Sierra?

To diagnose the Ignition Accessory Switch Circuit Low Voltage problem, you can use a diagnostic scanner to read the trouble codes, inspect the wiring for any damage, and test the ignition switch for proper functionality.

4. Can a bad battery cause the OBDII code P2537 to appear in a 2014 GMC Sierra?

Yes, a weak or faulty battery can sometimes trigger the OBDII code P2537 due to low voltage levels affecting the ignition accessory switch circuit.

5. What are some repair tips for fixing the Ignition Accessory Switch Circuit Low Voltage problem in a GMC Sierra?

Repair tips for addressing the P2537 code include checking and replacing the ignition accessory switch if necessary, repairing any damaged wiring, and ensuring the battery is in good condition.

6. Is it safe to continue driving my GMC Sierra with the OBDII code P2537 present?

It is not recommended to continue driving your GMC Sierra with the OBDII code P2537 present, as it can lead to potential issues with starting the vehicle or loss of power while driving.

7. Can a DIY enthusiast fix the OBDII code P2537 issue in a 2014 GMC Sierra?

Depending on your experience and skills, a DIY enthusiast may be able to address the OBDII code P2537 by following repair guides and using the necessary tools for diagnosis and repair.

8. How much does it typically cost to repair the Ignition Accessory Switch Circuit Low Voltage problem in a GMC Sierra?

The cost of repairing the Ignition Accessory Switch Circuit Low Voltage issue in a GMC Sierra can vary depending on the root cause of the problem, but it may range from $100 to $300 for parts and labor.

9. Will resetting the OBDII codes make the P2537 code disappear permanently?

Resetting the OBDII codes may temporarily clear the P2537 code, but if the underlying issue causing the code is not fixed, it is likely to reappear after driving the vehicle for some time.

10. What are the implications of ignoring the OBDII code P2537 in a 2014 GMC Sierra?

Ignoring the OBDII code P2537 in a 2014 GMC Sierra can lead to potential starting problems, electrical issues, and safety concerns while driving, so it is advisable to address the problem promptly.