OBD Guide
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B14B1

Driver Seat Heater Thermistor Circuit Open

B14B1 is an OBD-II diagnostic trouble code meaning: Driver Seat Heater Thermistor Circuit Open. Common causes: broken wires in the harness, thermistor fault. Estimated repair cost: $56–167.

Severity
✅ Low
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • No heated driver's seat
  • Error indication on the instrument panel
  • Heating system protection triggered

Causes

  • Broken wires in the harness
  • Thermistor fault
  • Problems in the heating control module
  • Contact corrosion

How to Fix

  1. Check the integrity of the wiring harness
  2. Measure thermistor resistance
  3. Check contacts and connectors
  4. Replace the thermistor if necessary
  5. Check the heating control module

Related codes

B14B2B14B0

FAQ

What does the B14B1 code mean?

B14B1 is an OBD-II diagnostic trouble code that indicates: Driver Seat Heater Thermistor Circuit Open

What causes a B14B1 error code?

The most common causes of B14B1 include: Broken wires in the harness; Thermistor fault; Problems in the heating control module; Contact corrosion.

How do I fix a B14B1 diagnostic trouble code?

To fix B14B1: Check the integrity of the wiring harness. Measure thermistor resistance. Check contacts and connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B14B1?

Yes, but get it checked soon

How much does it cost to fix B14B1?

The estimated repair cost for B14B1 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat