OBD Guide
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B16FB

Front Right Fog Lamp Control Circuit

B16FB is an OBD-II diagnostic trouble code meaning: Front Right Fog Lamp Control Circuit. Common causes: open or short circuit in wiring harness, faulty relay or fuse. Estimated repair cost: $11–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$11–56 (est.)

Symptoms

  • The right front fog light does not work
  • Right front fog light flashing
  • Dashboard warning for lighting fault

Causes

  • Open or short circuit in wiring harness
  • Faulty relay or fuse
  • Problems with the lighting control unit
  • Corrosion of contacts in connectors
  • Malfunction of the fog lamp itself

How to Fix

  1. Check the fog lamp circuit fuse and relay
  2. Inspect the wiring harness for damage
  3. Check the contacts in the headlight and control unit connectors
  4. Test the operation of the fog lamp
  5. If necessary, replace the headlight or control unit

Related codes

B16FAB16FCB16FD

FAQ

What does the B16FB code mean?

B16FB is an OBD-II diagnostic trouble code that indicates: Front Right Fog Lamp Control Circuit

What causes a B16FB error code?

The most common causes of B16FB include: Open or short circuit in wiring harness; Faulty relay or fuse; Problems with the lighting control unit; Corrosion of contacts in connectors.

How do I fix a B16FB diagnostic trouble code?

To fix B16FB: Check the fog lamp circuit fuse and relay. Inspect the wiring harness for damage. Check the contacts in the headlight and control unit connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B16FB?

Limited driving only, diagnose soon

How much does it cost to fix B16FB?

The estimated repair cost for B16FB is $11–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat