OBD Guide

B1D7C

Seat Horizontal Motor Control Performance Or Incorrect Operation

B1D7C is an OBD-II diagnostic trouble code meaning: Seat Horizontal Motor Control Performance Or Incorrect Operation. Common causes: adjustment mechanism jammed, engine gear wear. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • The seat does not move horizontally
  • Seat adjustment motor intermittent operation
  • Clicking or strange noises when trying to adjust

Causes

  • Adjustment mechanism jammed
  • Engine gear wear
  • Open or shorted wiring harness
  • Faulty adjustment motor
  • Problems with the seat control unit

How to Fix

  1. Check the mechanical part of the adjustment (gears, guides)
  2. Test the motor and wiring harness
  3. Check power supply and control signals to the motor
  4. If necessary, replace faulty components
  5. Reset the error and check the system operation

Related codes

FAQ

What does the B1D7C code mean?

B1D7C is an OBD-II diagnostic trouble code that indicates: Seat Horizontal Motor Control Performance Or Incorrect Operation

What causes a B1D7C error code?

The most common causes of B1D7C include: Adjustment mechanism jammed; Engine gear wear; Open or shorted wiring harness; Faulty adjustment motor.

How do I fix a B1D7C diagnostic trouble code?

To fix B1D7C: Check the mechanical part of the adjustment (gears, guides). Test the motor and wiring harness. Check power supply and control signals to the motor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1D7C?

Yes, but get it checked soon

How much does it cost to fix B1D7C?

The estimated repair cost for B1D7C is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat