OBD Guide
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B254C

Tonneau Extend Limit Switch Performance

B254C is an OBD-II diagnostic trouble code meaning: Tonneau Extend Limit Switch Performance. Common causes: limit switch fault, open or shorted wiring harness. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Incorrect operation of the trunk lid
  • Fault indicator flashing
  • Lack of response to open/close commands

Causes

  • Limit switch fault
  • Open or shorted wiring harness
  • Oxidation of contacts
  • Problems with the control unit

How to Fix

  1. Check the condition of the limit switch
  2. Inspect the wiring harness for damage
  3. Clean contacts from oxidation
  4. Replace the switch if necessary
  5. Check the operation of the control unit

Related codes

B254DB254E

FAQ

What does the B254C code mean?

B254C is an OBD-II diagnostic trouble code that indicates: Tonneau Extend Limit Switch Performance

What causes a B254C error code?

The most common causes of B254C include: Limit switch fault; Open or shorted wiring harness; Oxidation of contacts; Problems with the control unit.

How do I fix a B254C diagnostic trouble code?

To fix B254C: Check the condition of the limit switch. Inspect the wiring harness for damage. Clean contacts from oxidation. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B254C?

Limited driving only, diagnose soon

How much does it cost to fix B254C?

The estimated repair cost for B254C is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat