OBD Guide

B1F03

Mirror Horizontal Motor Control Circuit

B1F03 is an OBD-II diagnostic trouble code meaning: Mirror Horizontal Motor Control Circuit. Common causes: broken or damaged wiring harnesses, mirror motor malfunction. Estimated repair cost: $56–167.

Severity
Low
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Horizontal mirror adjustment does not work
  • The mirror does not lock in the specified position
  • Malfunction indicator on the dashboard

Causes

  • Broken or damaged wiring harnesses
  • Mirror motor malfunction
  • Problems with the control unit
  • Short circuit in the circuit

How to Fix

  1. Check the integrity of the wiring harnesses to the mirror
  2. Check the operation of the mirror motor
  3. Diagnose the control unit for errors
  4. Replace damaged components if necessary

Related codes

FAQ

What does the B1F03 code mean?

B1F03 is an OBD-II diagnostic trouble code that indicates: Mirror Horizontal Motor Control Circuit

What causes a B1F03 error code?

The most common causes of B1F03 include: Broken or damaged wiring harnesses; Mirror motor malfunction; Problems with the control unit; Short circuit in the circuit.

How do I fix a B1F03 diagnostic trouble code?

To fix B1F03: Check the integrity of the wiring harnesses to the mirror. Check the operation of the mirror motor. Diagnose the control unit for errors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1F03?

Yes, but get it checked soon

How much does it cost to fix B1F03?

The estimated repair cost for B1F03 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat