OBD Guide
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B168F

Front Fog Lamp Switch Circuit Stuck

B168F is an OBD-II diagnostic trouble code meaning: Front Fog Lamp Switch Circuit Stuck. Common causes: faulty fog light switch, wiring harness damage. Estimated repair cost: $22–111.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–111 (est.)

Symptoms

  • Fog lights don't turn on
  • Fog lights won't turn off
  • Flashing fog lights
  • Check Engine light comes on

Causes

  • Faulty fog light switch
  • Wiring harness damage
  • Short circuit in the circuit
  • Relay problems
  • Control unit malfunction

How to Fix

  1. Check the operation of the fog light switch
  2. Check the integrity of the wiring harness
  3. Check relays and fuses
  4. Scan the control unit for other errors
  5. Replace the faulty component

Related codes

B168EB1690B1691

FAQ

What does the B168F code mean?

B168F is an OBD-II diagnostic trouble code that indicates: Front Fog Lamp Switch Circuit Stuck

What causes a B168F error code?

The most common causes of B168F include: Faulty fog light switch; Wiring harness damage; Short circuit in the circuit; Relay problems.

How do I fix a B168F diagnostic trouble code?

To fix B168F: Check the operation of the fog light switch. Check the integrity of the wiring harness. Check relays and fuses. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B168F?

Limited driving only, diagnose soon

How much does it cost to fix B168F?

The estimated repair cost for B168F is $22–111. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat