OBD Guide
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B254D

Tonneau Extend Limit Switch Circuit Low

B254D is an OBD-II diagnostic trouble code meaning: Tonneau Extend Limit Switch Circuit Low. Common causes: wiring harness damage, limit switch fault.

Severity
✅ Low
Can you drive?
Limited driving only, diagnose soon

Symptoms

  • Incorrect operation of the trunk roof mechanism
  • Error message on the dashboard

Causes

  • Wiring harness damage
  • Limit switch fault
  • Poor connection in the circuit

How to Fix

  1. Check the integrity of the wiring harness
  2. Test the switch
  3. Replace the switch if necessary

FAQ

What does the B254D code mean?

B254D is an OBD-II diagnostic trouble code that indicates: Tonneau Extend Limit Switch Circuit Low

What causes a B254D error code?

The most common causes of B254D include: Wiring harness damage; Limit switch fault; Poor connection in the circuit.

How do I fix a B254D diagnostic trouble code?

To fix B254D: Check the integrity of the wiring harness. Test the switch. Replace the switch if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B254D?

Limited driving only, diagnose soon

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See also: Russian version · NationStat