OBD Guide
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B2254

Front Fog Lamp Switch Failure

B2254 is an OBD-II diagnostic trouble code meaning: Front Fog Lamp Switch Failure. Common causes: front fog light switch malfunction, open or short circuit in wiring harness. Estimated repair cost: ~$6.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
~$6 (est.)

Symptoms

  • Fog lights do not turn on/off
  • Flashing fog lights without pressing the switch
  • Switch backlight does not work

Causes

  • Front fog light switch malfunction
  • Open or short circuit in wiring harness
  • Problems with fog light relay
  • Malfunction of the lighting control unit

How to Fix

  1. Check the operation of the switch with a multimeter
  2. Inspect the wiring harness for damage
  3. Replace switch if necessary
  4. Check relay functionality
  5. Scan the control unit for additional errors

Related codes

B2255B2260B2261

FAQ

What does the B2254 code mean?

B2254 is an OBD-II diagnostic trouble code that indicates: Front Fog Lamp Switch Failure

What causes a B2254 error code?

The most common causes of B2254 include: Front fog light switch malfunction; Open or short circuit in wiring harness; Problems with fog light relay; Malfunction of the lighting control unit.

How do I fix a B2254 diagnostic trouble code?

To fix B2254: Check the operation of the switch with a multimeter. Inspect the wiring harness for damage. Replace switch if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2254?

Limited driving only, diagnose soon

How much does it cost to fix B2254?

The estimated repair cost for B2254 is ~$6. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat