OBD Guide
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B1D19

Passenger Mirror Horizontal Position Sensor Input Circuit High

B1D19 is an OBD-II diagnostic trouble code meaning: Passenger Mirror Horizontal Position Sensor Input Circuit High. Common causes: broken wire in the door harness, short circuit in the sensor circuit. Estimated repair cost: $33–167.

Severity
✅ Low
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$33–167 (est.)

Symptoms

  • Incorrect operation of the mirror position memory
  • Mirror does not maintain position
  • Fault indication on the dashboard

Causes

  • Broken wire in the door harness
  • Short circuit in the sensor circuit
  • Oxidation of contacts
  • Position sensor malfunction
  • Problems with the seat memory control unit

How to Fix

  1. Conduct a visual inspection of the wiring harness in the door
  2. Check the contacts of the sensor connector
  3. Check the voltage in the sensor circuit
  4. Check the resistance of the sensor itself
  5. Replace damaged wires or sensor
  6. Reset the error and check the system operation

Related codes

B1D18B1D1AB1D1B

FAQ

What does the B1D19 code mean?

B1D19 is an OBD-II diagnostic trouble code that indicates: Passenger Mirror Horizontal Position Sensor Input Circuit High

What causes a B1D19 error code?

The most common causes of B1D19 include: Broken wire in the door harness; Short circuit in the sensor circuit; Oxidation of contacts; Position sensor malfunction.

How do I fix a B1D19 diagnostic trouble code?

To fix B1D19: Conduct a visual inspection of the wiring harness in the door. Check the contacts of the sensor connector. Check the voltage in the sensor circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1D19?

Do not drive — repair immediately

How much does it cost to fix B1D19?

The estimated repair cost for B1D19 is $33–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat