AutoCodes – KIA – B1370 KIA

B1370 KIA Code - Front-Passenger Seat Belt Pretensioner Circuit Short To Battery

Quick Answer

The Seat Belt Pretensioners (BPT) are located at both sides of the center pillar. Common causes include Faulty Front-Passenger Seat Belt Pretensioner, Front-Passenger Seat Belt Pretensioner harness is open or shorted, Front-Passenger Seat Belt Pretensioner 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: B1370 KIA indicates Front-Passenger Seat Belt Pretensioner Circuit Short To Battery.
Common causes: Common causes include Faulty Front-Passenger Seat Belt Pretensioner, Front-Passenger Seat Belt Pretensioner harness is open or shorted, Front-Passenger Seat Belt Pretensioner 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,550

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 Mar 15, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B1370 KIA Description

The Seat Belt Pretensioners (BPT) are located at both sides of the center pillar. The Seat Belt Pretensioner tightens seat belt before air bag deploys to protect the passenger from bumping against crush pad, steering wheel, and front window. In the Seat Belt Pretensioner, there are an ignition circuit and cylinder for rewinding belt. Gas chamber generates an expansive force of gases to push the piston in the cylinder to lock the seat belt. The Seat Belt Pretensioners circuit consists of the Supplemental Restraint System Control Module (SRSCM) and two Seat Belt Pretensioners. The SRSCM sets the Diagnostic Trouble Code (DTC) if it detects that the resistance of BPT squib is too high or low.

OBDII Code B1370 KIA - Front-Passenger Seat Belt Pretensioner Circuit Short To Battery - AutoCodes.com — B1370 KIA Code - Front-Passenger Seat Belt Pretensioner Circuit Short To Battery

What does this mean?

What are the Possible Causes of the DTC B1370 KIA?

Faulty Front-Passenger Seat Belt Pretensioner
Front-Passenger Seat Belt Pretensioner harness is open or shorted
Front-Passenger Seat Belt Pretensioner circuit poor electrical connection
Faulty Supplemental Restraint System Control Module (SRSCM)

How to Fix the DTC B1370 KIA?

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 B1370 KIA 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 B1370 KIA code?

Need more information on how to fix the B1370 KIA code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1370 KIA code diagnosed by a professional: Find a repair shop in your area

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 B1370 KIA Code

1. What does the OBDII code B1370 KIA indicate?

The code B1370 KIA indicates a fault in the front-passenger seat belt pretensioner circuit, specifically a short to the battery.

2. What are common symptoms of the B1370 KIA code?

Common symptoms include the SRS (airbag) warning light illuminating on the dashboard and potentially the passenger seat belt pretensioner not deploying in a collision.

3. What causes the B1370 KIA code to be triggered?

This code is typically triggered by a short circuit within the wiring or connectors leading to the front-passenger seat belt pretensioner, causing an unintended voltage connection to the battery.

4. How can I diagnose the B1370 KIA code?

Diagnosis involves using a scan tool to confirm the code, visually inspecting the wiring and connectors for damage, and checking the resistance and voltage in the pretensioner circuit to identify any discrepancies from manufacturer specifications.

5. What steps should be taken to repair the issue causing the B1370 KIA code?

Repair steps include repairing or replacing any damaged wires or connectors, checking the seat belt pretensioner assembly itself, and clearing the code from the vehicleâ€™s computer system to see if it returns.

6. Is it safe to drive with the B1370 KIA code active?

While the vehicle can be driven, safety is compromised as the front-passenger seat belt pretensioner may not function correctly in an accident, increasing the risk of injury.

7. How urgent is it to address the B1370 KIA code?

It is quite urgent to address this code due to its direct impact on passenger safety in the event of a crash. It is recommended to have it diagnosed and repaired as soon as possible.

8. Can the B1370 KIA code affect other systems in the car?

While the primary impact is on the seat belt system, the SRS system functionality as a whole could be compromised, which includes the performance of airbags and other safety mechanisms.

9. What tools are needed to diagnose the B1370 KIA code?

Diagnostic tools required include a scan tool capable of reading SRS system codes, a multimeter for electrical testing, and possibly an oscilloscope to check for signal integrity.

10. Could the B1370 KIA code be caused by a simple error like a loose connector?

Yes, a loose or corroded connector can cause this code. Checking and securing all related connectors is a recommended troubleshooting step before proceeding to more in-depth repairs.