B25BD
Left Front Door Ajar Switch Stuck Open
B25BD is an OBD-II diagnostic trouble code meaning: Left Front Door Ajar Switch Stuck Open. Common causes: mechanical jamming of the door limit switch, open or short circuit in the door wiring harness. Estimated repair cost: $6–56.
Symptoms
- The door open lamp on the dashboard is constantly on
- Interior lighting does not turn off automatically
- The alarm may not work correctly
- The system can show an open door when closing it
Causes
- Mechanical jamming of the door limit switch
- Open or short circuit in the door wiring harness
- Oxidation of switch contacts
- Damage or wear to the switch itself
- Problems with the body control module
How to Fix
- Check the mechanical condition of the switch (maybe it’s just stuck)
- Clean the switch contacts from oxides and dirt
- Check the integrity of the wiring harness in the area of the door hinges
- Test the switch with a multimeter
- If necessary, replace the door limit switch
- Reset the error with an OBD-II scanner after repair
Related codes
FAQ
What does the B25BD code mean?
B25BD is an OBD-II diagnostic trouble code that indicates: Left Front Door Ajar Switch Stuck Open
What causes a B25BD error code?
The most common causes of B25BD include: Mechanical jamming of the door limit switch; Open or short circuit in the door wiring harness; Oxidation of switch contacts; Damage or wear to the switch itself.
How do I fix a B25BD diagnostic trouble code?
To fix B25BD: Check the mechanical condition of the switch (maybe it’s just stuck). Clean the switch contacts from oxides and dirt. Check the integrity of the wiring harness in the area of the door hinges. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B25BD?
Yes, but get it checked soon
How much does it cost to fix B25BD?
The estimated repair cost for B25BD is $6–56. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat