OBD Guide
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B1D7B

Seat Horizontal Motor Control Circuit Performance

B1D7B is an OBD-II diagnostic trouble code meaning: Seat Horizontal Motor Control Circuit Performance. Common causes: open or short circuit in wiring harness, horizontal seat motor malfunction. 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 forward/backward
  • Intermittent operation of the adjustment motor
  • The adjustment motor makes strange noises

Causes

  • Open or short circuit in wiring harness
  • Horizontal seat motor malfunction
  • Problems with the seat control unit
  • Damage to connectors or corrosion of contacts

How to Fix

  1. Check the integrity of the wiring harness
  2. Check connectors and contacts for damage and corrosion
  3. Test the horizontal adjustment motor
  4. Check seat control unit
  5. Replace faulty components

Related codes

B1D7AB1D7CB1D7D

FAQ

What does the B1D7B code mean?

B1D7B is an OBD-II diagnostic trouble code that indicates: Seat Horizontal Motor Control Circuit Performance

What causes a B1D7B error code?

The most common causes of B1D7B include: Open or short circuit in wiring harness; Horizontal seat motor malfunction; Problems with the seat control unit; Damage to connectors or corrosion of contacts.

How do I fix a B1D7B diagnostic trouble code?

To fix B1D7B: Check the integrity of the wiring harness. Check connectors and contacts for damage and corrosion. Test the horizontal adjustment motor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1D7B?

Yes, but get it checked soon

How much does it cost to fix B1D7B?

The estimated repair cost for B1D7B is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat