OBD Guide

B2356

Seat Front Vertical Position Sensor Circuit Range/Performance

B2356 is an OBD-II diagnostic trouble code meaning: Seat Front Vertical Position Sensor Circuit Range/Performance. Common causes: faulty seat position sensor, open or short circuit in wiring harness. Estimated repair cost: $33–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$33–167 (est.)

Symptoms

  • Seat position memory not working
  • Incorrect operation of the electric seat adjustment drive
  • The security system malfunction indicator is on
  • Seat does not move vertically

Causes

  • Faulty seat position sensor
  • Open or short circuit in wiring harness
  • Oxidation or damage to connectors
  • Problems with power seat
  • Seat/Safety Control Module Malfunction

How to Fix

  1. Read the current sensor parameters via a diagnostic scanner
  2. Visually inspect the sensor wiring harness and connectors
  3. Check sensor resistance and reference voltage
  4. Test the seat adjustment mechanism for binding
  5. If necessary, replace the position sensor or repair the wiring

Related codes

FAQ

What does the B2356 code mean?

B2356 is an OBD-II diagnostic trouble code that indicates: Seat Front Vertical Position Sensor Circuit Range/Performance

What causes a B2356 error code?

The most common causes of B2356 include: Faulty seat position sensor; Open or short circuit in wiring harness; Oxidation or damage to connectors; Problems with power seat.

How do I fix a B2356 diagnostic trouble code?

To fix B2356: Read the current sensor parameters via a diagnostic scanner. Visually inspect the sensor wiring harness and connectors. Check sensor resistance and reference voltage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2356?

Do not drive — repair immediately

How much does it cost to fix B2356?

The estimated repair cost for B2356 is $33–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat