OBD Guide

B103A

Right Front Seat Heater Sensor

B103A is an OBD-II diagnostic trouble code meaning: Right Front Seat Heater Sensor. Common causes: open or short circuit in the sensor circuit, malfunction of the temperature sensor itself. Estimated repair cost: $33–89.

Severity
Low
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–89 (est.)

Symptoms

  • The right front seat heating does not work
  • Heating turns on but turns off quickly
  • Malfunction indicator on the instrument panel

Causes

  • Open or short circuit in the sensor circuit
  • Malfunction of the temperature sensor itself
  • Wiring harness damage
  • Problems with the heated seat control module

How to Fix

  1. Check the continuity of the sensor circuit using a multimeter
  2. Inspect the wiring harness for damage
  3. Replace temperature sensor if necessary
  4. Check the seat heating control module

Related codes

FAQ

What does the B103A code mean?

B103A is an OBD-II diagnostic trouble code that indicates: Right Front Seat Heater Sensor

What causes a B103A error code?

The most common causes of B103A include: Open or short circuit in the sensor circuit; Malfunction of the temperature sensor itself; Wiring harness damage; Problems with the heated seat control module.

How do I fix a B103A diagnostic trouble code?

To fix B103A: Check the continuity of the sensor circuit using a multimeter. Inspect the wiring harness for damage. Replace temperature sensor if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B103A?

Yes, but get it checked soon

How much does it cost to fix B103A?

The estimated repair cost for B103A is $33–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat