B253B
Convertible Top Header Latch Limit Switch Circuit Low
B253B is an OBD-II diagnostic trouble code meaning: Convertible Top Header Latch Limit Switch Circuit Low. Common causes: open or shorted wiring harness, oxidation of limit switch contacts. Estimated repair cost: $56–167.
Symptoms
- Inability to open/close the roof of a convertible
- Roof fault indication on the dashboard
- The roof mechanism works intermittently
- The system reports an unlocked roof when closing it
Causes
- Open or shorted wiring harness
- Oxidation of limit switch contacts
- Limit switch fault
- Problems with the convertible control unit
- Mechanical damage to wiring in the roof area
How to Fix
- Check the integrity of the wiring harness to the limit switch
- Clean the limit switch contacts from oxides
- Test the operation of the limit switch
- Check the resistance of the limit switch circuit
- If necessary, replace the limit switch
- Flash the control unit if updates are available
Related codes
FAQ
What does the B253B code mean?
B253B is an OBD-II diagnostic trouble code that indicates: Convertible Top Header Latch Limit Switch Circuit Low
What causes a B253B error code?
The most common causes of B253B include: Open or shorted wiring harness; Oxidation of limit switch contacts; Limit switch fault; Problems with the convertible control unit.
How do I fix a B253B diagnostic trouble code?
To fix B253B: Check the integrity of the wiring harness to the limit switch. Clean the limit switch contacts from oxides. Test the operation of the limit switch. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B253B?
Limited driving only, diagnose soon
How much does it cost to fix B253B?
The estimated repair cost for B253B is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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