OBD Guide
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B2146

Outside Rearview Mirror Position Sensor Input Voltage Low

B2146 is an OBD-II diagnostic trouble code meaning: Outside Rearview Mirror Position Sensor Input Voltage Low. Common causes: broken or damaged wiring, position sensor malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • Incorrect mirror adjustment
  • Mirror does not maintain position
  • The mirror does not respond to commands

Causes

  • Broken or damaged wiring
  • Position sensor malfunction
  • Problems with the control unit
  • Short circuit in the circuit

How to Fix

  1. Check wiring integrity
  2. Check the voltage at the sensor
  3. Replace position sensor if necessary
  4. Check control unit

Related codes

B2145B2147

FAQ

What does the B2146 code mean?

B2146 is an OBD-II diagnostic trouble code that indicates: Outside Rearview Mirror Position Sensor Input Voltage Low

What causes a B2146 error code?

The most common causes of B2146 include: Broken or damaged wiring; Position sensor malfunction; Problems with the control unit; Short circuit in the circuit.

How do I fix a B2146 diagnostic trouble code?

To fix B2146: Check wiring integrity. Check the voltage at the sensor. Replace position sensor if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2146?

Limited driving only, diagnose soon

How much does it cost to fix B2146?

The estimated repair cost for B2146 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat