AutoCodes – Generic – B25AF

B25AF Code - Door Lock/Unlock Switch Stuck

Quick Answer

The microprocessor-based electronic Driver Door Module (DDM) contains logic circuits that monitor various hard wired low current, multiplexed inputs from the power window, power lock, power mirror and memory switches. Common causes include Faulty Door Lock/Unlock Switch, Door Lock/Unlock Switch harness is open or shorted, Door Lock/Unlock 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
B25AF indicates Door Lock/Unlock Switch Stuck.
Common causes
Common causes include Faulty Door Lock/Unlock Switch, Door Lock/Unlock Switch harness is open or shorted, Door Lock/Unlock 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 3,622
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 05, 2020
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Code B25AF Description

The microprocessor-based electronic Driver Door Module (DDM) contains logic circuits that monitor various hard wired low current, multiplexed inputs from the power window, power lock, power mirror and memory switches. The program logic within the DDM allows the microprocessor to prioritize all inputs and then determine the tasks it needs to perform. These tasks are then completed either by controlling hard wired outputs to the various motors, actuators or lamps on its own or by sending electronic message requests over the CAN-IHS Bus to the appropriate electronic module in the vehicle.
OBDII Code B25AF - Door Lock/Unlock Switch Stuck - AutoCodes.com
B25AF Code - Door Lock/Unlock Switch Stuck

What are the Possible Causes of the DTC B25AF?

  • Faulty Door Lock/Unlock Switch
  • Door Lock/Unlock Switch harness is open or shorted
  • Door Lock/Unlock Switch circuit poor electrical connection
  • Faulty Driver Door Module (DDM)

How to Fix the DTC B25AF?

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 B25AF 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 B25AF code?

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Need Help with the Code?

Get the B25AF code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

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 B25AF Code

1. What are the common symptoms of OBDII code B25AF related to the door lock/unlock switch being stuck?

- Common symptoms include difficulty locking or unlocking the doors using the switch, intermittent operation of the door locks, or the switch feeling jammed or unresponsive.

2. What are the possible causes of the OBDII code B25AF indicating a stuck door lock/unlock switch?

- Causes may include a faulty door lock/unlock switch, wiring issues, a malfunctioning control module, or mechanical problems within the door lock mechanism.

3. How can I diagnose the problem associated with OBDII code B25AF for a stuck door lock/unlock switch?

- Diagnostic steps may involve visually inspecting the switch for physical damage, testing the switch for continuity, checking the wiring for any faults, and using a scan tool to analyze data from the control module.

4. Are there any temporary fixes or troubleshooting tips for dealing with a stuck door lock/unlock switch?

- You can try cleaning the switch contacts with electrical contact cleaner, checking and securing any loose wiring connections, or temporarily bypassing the switch to manually lock and unlock the doors.

5. Can I continue driving my vehicle with the OBDII code B25AF indicating a stuck door lock/unlock switch?

- While it may be possible to continue driving, it is not recommended as the malfunctioning switch can compromise the security of your vehicle and pose safety risks. It's best to address the issue promptly.

6. Is it necessary to replace the entire door lock/unlock switch assembly when dealing with OBDII code B25AF?

- Depending on the exact cause of the issue, you may need to replace the entire switch assembly, repair wiring or connections, or address any underlying mechanical problems. A thorough diagnosis will help determine the best course of action.

7. How much does it typically cost to repair a stuck door lock/unlock switch issue related to OBDII code B25AF?

- Repair costs can vary based on the specific cause of the problem, labor rates in your area, and the need for replacement parts. It's advisable to obtain estimates from qualified technicians or repair shops.

8. Can I reset the OBDII code B25AF related to a stuck door lock/unlock switch by disconnecting the battery?

- Disconnecting the battery may clear the code temporarily, but if the underlying issue is not addressed, the code is likely to return. It's important to diagnose and fix the root cause of the problem to prevent further issues.

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