AutoCodes – GMC – B252C 2015 GMC Sierra

B252C 2015 GMC Sierra Code - Child Security Lock Switch Circuit

Quick Answer

The Body Control Module (BCM) monitors the voltage level in the child security door lockout switch signal circuit, when the switch is in the open position the voltage in the signal circuit will be equal to the B+ voltage level. Common causes include Faulty Child Security Lock Switch, Child Security Lock Switch harness is open or shorted, Child Security Lock 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
B252C 2015 GMC Sierra indicates Child Security Lock Switch Circuit.
Common causes
Common causes include Faulty Child Security Lock Switch, Child Security Lock Switch harness is open or shorted, Child Security Lock 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 151
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 24, 2023
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Code B252C 2015 GMC Sierra Description

The Body Control Module (BCM) monitors the voltage level in the child security door lockout switch signal circuit, when the switch is in the open position the voltage in the signal circuit will be equal to the B+ voltage level. When the child security door lockout switch is pressed, the voltage within the signal circuit drops, and the BCM will detect the voltage drop and will energize the door lock relay to disable the interior rear door handles. The Diagnostic Trouble Code (DTC) will be set when the BCM has detected a short to ground on the child security lockout switch signal circuit for greater than 60 seconds.
OBDII Code B252C 2015 GMC Sierra - Child Security Lock Switch Circuit - AutoCodes.com
B252C 2015 GMC Sierra Code - Child Security Lock Switch Circuit

What are the Possible Causes of the DTC B252C 2015 GMC Sierra?

  • Faulty Child Security Lock Switch
  • Child Security Lock Switch harness is open or shorted
  • Child Security Lock Switch circuit poor electrical connection
  • Faulty Body Control Module (BCM)

How to Fix the DTC B252C 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 B252C 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 B252C 2015 GMC Sierra code?

Need more information on how to fix the B252C 2015 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 B252C 2015 GMC Sierra Code

1. What are the common symptoms of OBDII code B252C on a 2015 GMC Sierra related to the Child Security Lock Switch Circuit?

- The common symptoms include malfunctioning child safety locks, inability to engage or disengage the child security lock switch, and potential issues with the overall security system.

2. What are the possible causes of OBDII code B252C on a 2015 GMC Sierra?

- The code B252C can be triggered by a faulty child security lock switch, damaged wiring or connectors in the circuit, or issues with the control module responsible for managing the child security features.

3. How can I diagnose the Child Security Lock Switch Circuit issue triggering code B252C on my 2015 GMC Sierra?

- To diagnose the problem, you can start by visually inspecting the child security lock switch, checking the wiring and connectors for any visible damage, and using a diagnostic tool to scan for the specific fault code.

4. Can I repair the Child Security Lock Switch Circuit issue causing OBDII code B252C on my 2015 GMC Sierra myself?

- Depending on your skills and experience with automotive electrical systems, you may be able to repair the issue yourself by replacing the faulty child security lock switch, repairing damaged wiring, or addressing any issues with the control module.

5. Is it safe to drive my 2015 GMC Sierra with OBDII code B252C related to the Child Security Lock Switch Circuit?

- It is generally not recommended to drive the vehicle with unresolved child security lock switch circuit issues, as it may impact the safety and security features of the vehicle. It is advisable to address the problem promptly.

6. Can resetting the OBDII system clear the B252C code on my 2015 GMC Sierra?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue with the Child Security Lock Switch Circuit is not addressed, the code is likely to reappear after driving the vehicle.

7. How much does it typically cost to repair the Child Security Lock Switch Circuit issue causing OBDII code B252C on a 2015 GMC Sierra?

- The cost of repairing the Child Security Lock Switch Circuit issue can vary depending on the exact cause of the problem, the parts needed for repair, and whether you choose to do the repair yourself or seek professional assistance.

8. Can a dead battery trigger OBDII code B252C on a 2015 GMC Sierra?

- A dead battery can potentially cause electrical issues that may lead to the triggering of OBDII code B252C related to the Child Security Lock Switch Circuit, so it is advisable to ensure the battery is in good condition.

9. Are there any recalls or technical service bulletins related to OBDII code B252C on the 2015 GMC Sierra?

- It is recommended to check with a GMC dealership or the manufacturer's website for any recalls or technical service bulletins related to OBDII code B252C on the 2015 GMC Sierra, as there may be relevant information or assistance available.

10. How long does it typically take to repair the Child Security Lock Switch Circuit issue causing OBDII code B252C on a 2015 GMC Sierra?

- The time required to repair the Child Security Lock Switch Circuit issue can vary depending on the complexity of the problem, the availability of parts, and whether you are doing the repair yourself or seeking professional help.

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