OBD Guide
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B1957

Seat Front Up/Down Potentiometer Feedback Circuit Short To Ground

B1957 is an OBD-II diagnostic trouble code meaning: Seat Front Up/Down Potentiometer Feedback Circuit Short To Ground. Common causes: damage to the wiring harness (fraying, bending), short circuit in potentiometer. Estimated repair cost: $56–167.

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

Symptoms

  • Seat height adjustment does not work correctly
  • Airbag light flashing
  • Storing a fault code after an adjustment attempt

Causes

  • Damage to the wiring harness (fraying, bending)
  • Short circuit in potentiometer
  • Oxidation of contacts
  • Mechanical damage to the potentiometer
  • Problems with connectors

How to Fix

  1. Visual inspection of the wiring harness from the seat to the control unit
  2. Checking the integrity of the potentiometer circuit wires
  3. Potentiometer resistance diagnostics
  4. Cleaning connector contacts
  5. Replacing the potentiometer or harness section if necessary

Related codes

B1958B1959B1960

FAQ

What does the B1957 code mean?

B1957 is an OBD-II diagnostic trouble code that indicates: Seat Front Up/Down Potentiometer Feedback Circuit Short To Ground

What causes a B1957 error code?

The most common causes of B1957 include: Damage to the wiring harness (fraying, bending); Short circuit in potentiometer; Oxidation of contacts; Mechanical damage to the potentiometer.

How do I fix a B1957 diagnostic trouble code?

To fix B1957: Visual inspection of the wiring harness from the seat to the control unit. Checking the integrity of the potentiometer circuit wires. Potentiometer resistance diagnostics. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1957?

Do not drive — repair immediately

How much does it cost to fix B1957?

The estimated repair cost for B1957 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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