OBD Guide

B2349

Mirror Switch Reference Voltage Negative Common Open Circuit

B2349 is an OBD-II diagnostic trouble code meaning: Mirror Switch Reference Voltage Negative Common Open Circuit. Common causes: broken wire in the harness, oxidation of switch contacts. Estimated repair cost: $22–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–89 (est.)

Symptoms

  • Mirror adjustments don't work
  • Mirrors do not respond to commands from the switch
  • Intermittent mirror operation

Causes

  • Broken wire in the harness
  • Oxidation of switch contacts
  • Mirror switch malfunction
  • Damage to the door wiring harness

How to Fix

  1. Check the integrity of the door wiring harness
  2. Inspect the mirror switch contacts
  3. Check the resistance of the switch circuit
  4. Replace switch if necessary

Related codes

FAQ

What does the B2349 code mean?

B2349 is an OBD-II diagnostic trouble code that indicates: Mirror Switch Reference Voltage Negative Common Open Circuit

What causes a B2349 error code?

The most common causes of B2349 include: Broken wire in the harness; Oxidation of switch contacts; Mirror switch malfunction; Damage to the door wiring harness.

How do I fix a B2349 diagnostic trouble code?

To fix B2349: Check the integrity of the door wiring harness. Inspect the mirror switch contacts. Check the resistance of the switch circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2349?

Limited driving only, diagnose soon

How much does it cost to fix B2349?

The estimated repair cost for B2349 is $22–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat