OBD Guide

B1D7A

Seat Recliner Position Sensor Circuit High

B1D7A is an OBD-II diagnostic trouble code meaning: Seat Recliner Position Sensor Circuit High. Common causes: seat back position sensor malfunction, open or short circuit in wiring harness. Estimated repair cost: $33–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–89 (est.)

Symptoms

  • Incorrect operation of the electric seat backrest
  • Seat position settings not saved
  • The malfunction indicator on the instrument panel lights up

Causes

  • Seat back position sensor malfunction
  • Open or short circuit in wiring harness
  • Poor contact in connectors
  • Problems with the seat control unit

How to Fix

  1. Check the integrity of the wiring harness to the sensor
  2. Check the contacts in the sensor and control unit connectors
  3. Measure the resistance/voltage of the sensor in different positions
  4. If necessary, replace the sensor or repair the wiring

Related codes

FAQ

What does the B1D7A code mean?

B1D7A is an OBD-II diagnostic trouble code that indicates: Seat Recliner Position Sensor Circuit High

What causes a B1D7A error code?

The most common causes of B1D7A include: Seat back position sensor malfunction; Open or short circuit in wiring harness; Poor contact in connectors; Problems with the seat control unit.

How do I fix a B1D7A diagnostic trouble code?

To fix B1D7A: Check the integrity of the wiring harness to the sensor. Check the contacts in the sensor and control unit connectors. Measure the resistance/voltage of the sensor in different positions. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1D7A?

Yes, but get it checked soon

How much does it cost to fix B1D7A?

The estimated repair cost for B1D7A is $33–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat