AutoCodes – Scion – B14B2 Scion

B14B2 Scion Code - Driver Seat Heater Thermistor Circuit Short Circuit

Quick Answer

The Air Condition (A/C) Control Module monitors the Driver Seat Heater Thermistor. Common causes include Faulty Driver Seat Heater Module, Driver Seat Heater Module harness is open or shorted, Driver Seat Heater Module circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: B14B2 Scion indicates Driver Seat Heater Thermistor Circuit Short Circuit.
Common causes: Common causes include Faulty Driver Seat Heater Module, Driver Seat Heater Module harness is open or shorted, Driver Seat Heater Module circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 839

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 15, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B14B2 Scion Description

The Air Condition (A/C) Control Module monitors the Driver Seat Heater Thermistor. The A/C Control Module sets the OBDII code when the Driver Seat Heater Thermistor is not to factory specifications.

OBDII Code B14B2 Scion - Driver Seat Heater Thermistor Circuit Short Circuit - AutoCodes.com — B14B2 Scion Code - Driver Seat Heater Thermistor Circuit Short Circuit

What does this mean?

What are the Possible Causes of the DTC B14B2 Scion?

Faulty Driver Seat Heater Module
Driver Seat Heater Module harness is open or shorted
Driver Seat Heater Module circuit poor electrical connection
Faulty Air Condition (A/C) Control Module

How to Fix the DTC B14B2 Scion?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B14B2 Scion code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the B14B2 Scion code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B14B2 Scion Code

1. What does the OBDII code B14B2 mean in a Scion?

B14B2 indicates a short circuit in the driver seat heater thermistor circuit, which monitors and regulates the temperature of the seat heater.

2. What are the symptoms of OBDII code B14B2 in a Scion?

Common symptoms include a non-functioning driver seat heater, inconsistent heating, or the seat heater turning off unexpectedly.

3. What causes the B14B2 code to appear in a Scion?

The code is typically caused by damaged wiring, a shorted thermistor, a faulty seat heater control module, or a defective seat heater element.

4. How do I diagnose the B14B2 code in my Scion?

Start by inspecting the seat heater wiring and connectors for damage or shorts, then test the thermistor's resistance and check the seat heater control module for faults.

5. Can I still drive my Scion with the B14B2 code?

Yes, you can drive the vehicle, as this issue does not affect drivability. However, the driver seat heater may not function correctly.

6. How do I fix the B14B2 code in a Scion?

Repairs may involve replacing damaged wiring, repairing or replacing the thermistor, or replacing the seat heater control module if it is faulty.

7. How much does it cost to fix the B14B2 code in a Scion?

Repair costs vary depending on the issue, but replacing a faulty thermistor or repairing wiring usually costs between $100 and $300, excluding labor.

8. Can I reset the B14B2 code without fixing the problem?

You can clear the code with an OBDII scanner, but if the issue isnâ€™t resolved, the code will likely return.

9. What tools are needed to troubleshoot the B14B2 code in a Scion?

Youâ€™ll need an OBDII scanner, a multimeter for testing resistance, and basic tools to access wiring and seat components.

10. Is the B14B2 code common in Scion vehicles?

While not a widespread issue, it can occur in Scion models equipped with heated seats, especially as the vehicle ages or if the seat wiring is damaged.