AutoCodes – GMC – P2536 2016 GMC Sierra

P2536 2016 GMC Sierra Code - Ignition Accessory Switch Circuit

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: P2536 2016 GMC Sierra indicates Ignition Accessory Switch Circuit.
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 185

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 P2536 2016 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 P2536 2016 GMC Sierra - Ignition Accessory Switch Circuit - AutoCodes.com — P2536 2016 GMC Sierra Code - Ignition Accessory Switch Circuit

What does this mean?

What are the Possible Causes of the DTC P2536 2016 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 P2536 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 P2536 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.

Need more information about the P2536 2016 GMC Sierra code?

Need more information on how to fix the P2536 2016 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 P2536 2016 GMC Sierra Code

1. What does OBDII code P2536 for a 2016 GMC Sierra mean?

The code P2536 indicates a problem with the Ignition Accessory Switch Circuit in the vehicle.

2. What are the common symptoms of OBDII code P2536 in a 2016 GMC Sierra?

Common symptoms of code P2536 may include the engine stalling, difficulty starting the vehicle, or issues with the vehicle's electrical systems.

3. What are the possible causes of OBDII code P2536 in a 2016 GMC Sierra?

Potential causes of code P2536 include a faulty ignition switch, damaged wiring in the ignition circuit, or a malfunctioning ignition control module.

4. How can I diagnose OBDII code P2536 in my 2016 GMC Sierra?

Diagnosing code P2536 may involve using a scan tool to retrieve the code, checking the ignition switch and related wiring for damage, and testing the ignition control module for proper functioning.

5. Can I still drive my 2016 GMC Sierra with OBDII code P2536?

It is not recommended to drive the vehicle with an unresolved P2536 code, as it can lead to potential safety hazards and further damage to the vehicle's electrical system.

6. How can I repair OBDII code P2536 in my 2016 GMC Sierra?

Repairing code P2536 may involve replacing the faulty ignition switch, repairing damaged wiring in the ignition circuit, or replacing the malfunctioning ignition control module.

7. Is it safe to reset the OBDII code P2536 in a 2016 GMC Sierra using a scan tool?

Resetting the code with a scan tool may temporarily clear the warning light, but it is important to address the underlying issue causing the code to prevent future problems.

8. How much does it cost to repair OBDII code P2536 in a 2016 GMC Sierra?

The cost of repairing code P2536 can vary depending on the specific cause of the issue, but it may involve parts and labor expenses ranging from $100 to $500 or more.

9. Can a DIY enthusiast fix OBDII code P2536 in a 2016 GMC Sierra?

While some experienced DIY enthusiasts may be able to diagnose and repair code P2536 themselves, it is recommended to consult a professional mechanic for accurate diagnosis and proper repair.

10. How often does OBDII code P2536 occur in a 2016 GMC Sierra?

The occurrence of code P2536 can vary depending on the vehicle's condition and usage, but it is relatively uncommon compared to other OBDII codes.