AutoCodes – GMC – P2536 2015 GMC Sierra

P2536 2015 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 2015 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 149

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 2015 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 2015 GMC Sierra - Ignition Accessory Switch Circuit - AutoCodes.com — P2536 2015 GMC Sierra Code - Ignition Accessory Switch Circuit

What does this mean?

What are the Possible Causes of the DTC P2536 2015 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 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 P2536 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.

Need more information about the P2536 2015 GMC Sierra code?

Need more information on how to fix the P2536 2015 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 2015 GMC Sierra Code

1. What does OBDII code P2536 on a 2015 GMC Sierra indicate?

The OBDII code P2536 on a 2015 GMC Sierra refers to a problem with the Ignition Accessory Switch Circuit.

2. What are the common symptoms of OBDII code P2536 in a 2015 GMC Sierra?

Common symptoms of OBDII code P2536 in a 2015 GMC Sierra may include issues with starting the vehicle, intermittent electrical problems, or accessories not working properly.

3. What are the possible causes of OBDII code P2536 in a 2015 GMC Sierra?

Possible causes of OBDII code P2536 in a 2015 GMC Sierra can include a faulty ignition switch, damaged wiring or connectors in the circuit, or a malfunctioning accessory control module.

4. How can I diagnose OBDII code P2536 in a 2015 GMC Sierra?

Diagnosing OBDII code P2536 in a 2015 GMC Sierra typically involves using a diagnostic scanner to retrieve the trouble code, inspecting the ignition switch and related wiring, and testing the accessory control module for proper function.

5. What are the repair options for fixing OBDII code P2536 in a 2015 GMC Sierra?

Repair options for fixing OBDII code P2536 in a 2015 GMC Sierra may include replacing the faulty ignition switch, repairing damaged wiring or connectors, or replacing the malfunctioning accessory control module.

6. Can I drive my 2015 GMC Sierra with OBDII code P2536?

It is not recommended to drive your 2015 GMC Sierra with OBDII code P2536, as the issue may lead to starting problems or affect the proper functioning of accessories in the vehicle.

7. How much does it cost to repair OBDII code P2536 in a 2015 GMC Sierra?

The cost to repair OBDII code P2536 in a 2015 GMC Sierra can vary depending on the specific cause of the issue, but it may range from a few hundred dollars to over a thousand dollars for parts and labor.

8. Can a DIY enthusiast fix OBDII code P2536 in a 2015 GMC Sierra?

While some DIY enthusiasts may have the skills to diagnose and repair OBDII code P2536 in a 2015 GMC Sierra, it is recommended to consult a professional mechanic for accurate diagnosis and proper repair.

9. Will OBDII code P2536 in a 2015 GMC Sierra affect fuel efficiency?

OBDII code P2536 in a 2015 GMC Sierra may not directly affect fuel efficiency, but unresolved electrical issues could lead to other problems that may impact overall vehicle performance and fuel consumption.

10. How long does it typically take to repair OBDII code P2536 in a 2015 GMC Sierra?

The time to repair OBDII code P2536 in a 2015 GMC Sierra can vary depending on the specific cause of the issue and the availability of parts, but it may take a few hours to a full day for diagnosis and repair.