OBD Guide
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B1773

Mirror Driver Up Circuit Failure

B1773 is an OBD-II diagnostic trouble code meaning: Mirror Driver Up Circuit Failure. Common causes: broken wires in the control circuit, mirror motor malfunction. Estimated repair cost: $11–56.

Severity
✅ Low
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$11–56 (est.)

Symptoms

  • The top mirror drive does not work
  • The mirror is not adjustable in one direction
  • The malfunction indicator on the instrument panel lights up

Causes

  • Broken wires in the control circuit
  • Mirror motor malfunction
  • Wiring harness damage
  • Contact corrosion
  • Malfunction of the mirror control unit

How to Fix

  1. Check the integrity of the wires in the control circuit
  2. Check the operation of the mirror motor
  3. Inspect the wiring harness for damage
  4. Clean contacts from corrosion
  5. If necessary, replace the mirror control unit

Related codes

B1774B1775

FAQ

What does the B1773 code mean?

B1773 is an OBD-II diagnostic trouble code that indicates: Mirror Driver Up Circuit Failure

What causes a B1773 error code?

The most common causes of B1773 include: Broken wires in the control circuit; Mirror motor malfunction; Wiring harness damage; Contact corrosion.

How do I fix a B1773 diagnostic trouble code?

To fix B1773: Check the integrity of the wires in the control circuit. Check the operation of the mirror motor. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1773?

Do not drive — repair immediately

How much does it cost to fix B1773?

The estimated repair cost for B1773 is $11–56. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat