AutoCodes – Generic – B14B3

B14B3 Code - Passenger Seat Heater Thermistor Circuit Open

Quick Answer

The Air Condition (A/C) Control Module monitors the Passenger Seat Heater Thermistor. Common causes include Faulty Passenger Seat Heater Module, Passenger Seat Heater Module harness is open or shorted, Passenger 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: B14B3 indicates Passenger Seat Heater Thermistor Circuit Open.
Common causes: Common causes include Faulty Passenger Seat Heater Module, Passenger Seat Heater Module harness is open or shorted, Passenger 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 2,258

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 B14B3 Description

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

OBDII Code B14B3 - Passenger Seat Heater Thermistor Circuit Open - AutoCodes.com — B14B3 Code - Passenger Seat Heater Thermistor Circuit Open

What does this mean?

What are the Possible Causes of the DTC B14B3?

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

How to Fix the DTC B14B3?

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 B14B3 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 B14B3 code?

Need more information on how to fix the B14B3 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B14B3 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B14B3 Scion — Passenger Seat Heater Thermistor Circuit Open
B14B3 Subaru — Passenger Seat Heater Thermistor Circuit Open

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 B14B3 Code

1. What are common symptoms of OBDII code B14B3 (Passenger Seat Heater Thermistor Circuit Open)?

- Common symptoms include the passenger seat heater not functioning properly or not heating up at all.

2. What causes the OBDII code B14B3 to be triggered?

- The code is typically triggered when there is an open circuit in the thermistor circuit of the passenger seat heater.

3. How can I diagnose the issue related to OBDII code B14B3?

- You can diagnose the issue by checking the wiring and connections related to the passenger seat heater thermistor, and using a multimeter to test for continuity.

4. Is it safe to drive with the OBDII code B14B3 present?

- It is generally safe to drive with this code present, but the passenger seat heater will not function until the issue is resolved.

5. Can I fix the OBDII code B14B3 issue on my own?

- If you have experience with automotive electrical systems, you may be able to fix the issue on your own by checking and repairing any damaged wiring or connections.

6. Are there any temporary fixes for the OBDII code B14B3 until I can get it repaired?

- One temporary fix is to disconnect the passenger seat heater to prevent any further issues until the problem can be properly diagnosed and repaired.

7. How much does it typically cost to repair the OBDII code B14B3 issue?

- The cost of repair can vary depending on the extent of the damage and whether you do the repair yourself or take it to a professional. It may involve replacing wiring, connectors, or the thermistor itself.

8. Will resetting the OBDII code B14B3 make it go away permanently?

- Resetting the code may temporarily clear the error code, but it will likely return if the underlying issue causing the open circuit in the thermistor circuit is not addressed.

9. Can the OBDII code B14B3 be caused by a faulty passenger seat heater switch?

- While it is possible for a faulty switch to cause issues with the passenger seat heater, the B14B3 code specifically indicates an open circuit in the thermistor circuit.

10. Is the OBDII code B14B3 specific to certain vehicle makes and models?

- The B14B3 code may be specific to certain makes and models that use a similar passenger seat heater system with a thermistor circuit. It is important to consult your vehicle's specific diagnostic information for accurate details.