OBD Guide
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B1D72

Seat Front Vertical Position Sensor Circuit High

B1D72 is an OBD-II diagnostic trouble code meaning: Seat Front Vertical Position Sensor Circuit High. Common causes: short circuit to positive in the sensor circuit, vertical position sensor malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • Inability to save seat position settings
  • No automatic seat adjustment
  • Airbag malfunction indicator flashing

Causes

  • Short circuit to positive in the sensor circuit
  • Vertical position sensor malfunction
  • Wiring harness damage
  • Problems with the seat control unit

How to Fix

  1. Check the integrity of the wiring harness to the sensor
  2. Measure the sensor resistance (compare with the nominal value)
  3. Check the voltage in the sensor circuit
  4. If necessary, replace the sensor or repair the wiring harness

Related codes

B1D71B1D73B1020

FAQ

What does the B1D72 code mean?

B1D72 is an OBD-II diagnostic trouble code that indicates: Seat Front Vertical Position Sensor Circuit High

What causes a B1D72 error code?

The most common causes of B1D72 include: Short circuit to positive in the sensor circuit; Vertical position sensor malfunction; Wiring harness damage; Problems with the seat control unit.

How do I fix a B1D72 diagnostic trouble code?

To fix B1D72: Check the integrity of the wiring harness to the sensor. Measure the sensor resistance (compare with the nominal value). Check the voltage in the sensor circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1D72?

Do not drive — repair immediately

How much does it cost to fix B1D72?

The estimated repair cost for B1D72 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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