OBD Guide
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B1DF2

Mirror Fold Switch Stuck

B1DF2 is an OBD-II diagnostic trouble code meaning: Mirror Fold Switch Stuck. Common causes: switch contacts sticking, open or shorted wiring harness. Estimated repair cost: $6–56.

Severity
✅ Low
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$6–56 (est.)

Symptoms

  • The folding mirror function does not work
  • Mirrors do not respond to commands
  • False positives of the folding function

Causes

  • Switch contacts sticking
  • Open or shorted wiring harness
  • Mechanical damage to the switch
  • Contact corrosion
  • Problem with the control unit

How to Fix

  1. Check the operation of the switch manually
  2. Inspect the wiring harness for damage
  3. Clean switch contacts
  4. Replace the switch if necessary
  5. Check the control unit for errors

Related codes

B1DF0B1DF1

FAQ

What does the B1DF2 code mean?

B1DF2 is an OBD-II diagnostic trouble code that indicates: Mirror Fold Switch Stuck

What causes a B1DF2 error code?

The most common causes of B1DF2 include: Switch contacts sticking; Open or shorted wiring harness; Mechanical damage to the switch; Contact corrosion.

How do I fix a B1DF2 diagnostic trouble code?

To fix B1DF2: Check the operation of the switch manually. Inspect the wiring harness for damage. Clean switch contacts. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1DF2?

Limited driving only, diagnose soon

How much does it cost to fix B1DF2?

The estimated repair cost for B1DF2 is $6–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat