OBD Guide
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B1D16

Passenger Mirror Vertical Position Sensor Input Circuit High

B1D16 is an OBD-II diagnostic trouble code meaning: Passenger Mirror Vertical Position Sensor Input Circuit High. Common causes: mirror position sensor malfunction, open or short circuit in wiring harness. Estimated repair cost: $56–167.

Severity
✅ Low
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Incorrect operation of the passenger mirror
  • Mirror does not maintain position
  • The mirror does not respond to adjustments

Causes

  • Mirror position sensor malfunction
  • Open or short circuit in wiring harness
  • Oxidation of contacts
  • Body Control Module (BCM) Malfunction
  • Mechanical damage to the mirror

How to Fix

  1. Check the integrity of the wiring harness to the mirror
  2. Check contacts for oxidation
  3. Test the mirror position sensor
  4. Replace sensor if necessary
  5. Check the operation of the body control module (BCM)

Related codes

B1D15B1D17B1D18

FAQ

What does the B1D16 code mean?

B1D16 is an OBD-II diagnostic trouble code that indicates: Passenger Mirror Vertical Position Sensor Input Circuit High

What causes a B1D16 error code?

The most common causes of B1D16 include: Mirror position sensor malfunction; Open or short circuit in wiring harness; Oxidation of contacts; Body Control Module (BCM) Malfunction.

How do I fix a B1D16 diagnostic trouble code?

To fix B1D16: Check the integrity of the wiring harness to the mirror. Check contacts for oxidation. Test the mirror position sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1D16?

Limited driving only, diagnose soon

How much does it cost to fix B1D16?

The estimated repair cost for B1D16 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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