OBD Guide

B1E49

3rd Row Seat Right Backrest Position Sensor Circuit Low

B1E49 is an OBD-II diagnostic trouble code meaning: 3rd Row Seat Right Backrest Position Sensor Circuit Low. Common causes: seat back position sensor malfunction, open or short circuit in wiring harness. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine or Airbag Light Is On
  • Seat back adjustment does not work
  • Errors in the airbag module

Causes

  • Seat back position sensor malfunction
  • Open or short circuit in wiring harness
  • Poor contact in sensor connectors
  • Problems with the airbag module

How to Fix

  1. Check the integrity of the wiring harness to the sensor
  2. Check the contacts in the sensor and module connectors
  3. Replace the seat back position sensor if it is faulty
  4. Check and replace the airbag module if necessary

Related codes

FAQ

What does the B1E49 code mean?

B1E49 is an OBD-II diagnostic trouble code that indicates: 3rd Row Seat Right Backrest Position Sensor Circuit Low

What causes a B1E49 error code?

The most common causes of B1E49 include: Seat back position sensor malfunction; Open or short circuit in wiring harness; Poor contact in sensor connectors; Problems with the airbag module.

How do I fix a B1E49 diagnostic trouble code?

To fix B1E49: Check the integrity of the wiring harness to the sensor. Check the contacts in the sensor and module connectors. Replace the seat back position sensor if it is faulty. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1E49?

Do not drive — repair immediately

How much does it cost to fix B1E49?

The estimated repair cost for B1E49 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat