OBD Guide
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B1737

Mirror Driver Horizontal Switch Circuit Failure

B1737 is an OBD-II diagnostic trouble code meaning: Mirror Driver Horizontal Switch Circuit Failure. Common causes: open or short circuit in wiring harness, mirror adjustment switch malfunction. Estimated repair cost: $22–111.

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

Symptoms

  • Horizontal mirror adjustment does not work
  • The mirror does not move in one direction
  • Intermittent mirror operation

Causes

  • Open or short circuit in wiring harness
  • Mirror adjustment switch malfunction
  • Problems with the mirror motor
  • Contact corrosion

How to Fix

  1. Check wiring harness for damage
  2. Check the mirror switch for functionality
  3. Check the mirror motor
  4. Replace damaged components

Related codes

B1735B1736B1738

FAQ

What does the B1737 code mean?

B1737 is an OBD-II diagnostic trouble code that indicates: Mirror Driver Horizontal Switch Circuit Failure

What causes a B1737 error code?

The most common causes of B1737 include: Open or short circuit in wiring harness; Mirror adjustment switch malfunction; Problems with the mirror motor; Contact corrosion.

How do I fix a B1737 diagnostic trouble code?

To fix B1737: Check wiring harness for damage. Check the mirror switch for functionality. Check the mirror motor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1737?

Limited driving only, diagnose soon

How much does it cost to fix B1737?

The estimated repair cost for B1737 is $22–111. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat