OBD Guide
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B164F

Passenger Mirror Signal Lamp Control Circuit Low

B164F is an OBD-II diagnostic trouble code meaning: Passenger Mirror Signal Lamp Control Circuit Low. Common causes: broken or damaged wiring harness, poor contact in connectors. Estimated repair cost: $22–89.

Severity
✅ Low
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$22–89 (est.)

Symptoms

  • Passenger mirror light not working
  • Mirror light flashing
  • Error message on the dashboard

Causes

  • Broken or damaged wiring harness
  • Poor contact in connectors
  • Burnt out backlight bulb
  • Malfunction of the mirror control module
  • Problems with the body ECU

How to Fix

  1. Check the condition of the backlight
  2. Inspect the wiring harness for damage
  3. Check contacts in connectors
  4. Test the mirror control module
  5. If necessary, replace faulty components

Related codes

B164EB1650B1651

FAQ

What does the B164F code mean?

B164F is an OBD-II diagnostic trouble code that indicates: Passenger Mirror Signal Lamp Control Circuit Low

What causes a B164F error code?

The most common causes of B164F include: Broken or damaged wiring harness; Poor contact in connectors; Burnt out backlight bulb; Malfunction of the mirror control module.

How do I fix a B164F diagnostic trouble code?

To fix B164F: Check the condition of the backlight. Inspect the wiring harness for damage. Check contacts in connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B164F?

Do not drive — repair immediately

How much does it cost to fix B164F?

The estimated repair cost for B164F is $22–89. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat