AutoCodes – Generic – B1674

B1674 Code - Seat Driver Occupied Input Circuit Short To Battery

Quick Answer

The Body Control Module (BCM) monitors the Seat Driver Occupied Sensor. Common causes include Faulty Seat Driver Occupied Sensor, Seat Driver Occupied Sensor harness is open or shorted, Seat Driver Occupied Sensor 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
B1674 indicates Seat Driver Occupied Input Circuit Short To Battery.
Common causes
Common causes include Faulty Seat Driver Occupied Sensor, Seat Driver Occupied Sensor harness is open or shorted, Seat Driver Occupied Sensor 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 6,399
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 12, 2019
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Code B1674 Description

The Body Control Module (BCM) monitors the Seat Driver Occupied Sensor. The BCM sets the OBDII code when the Seat Driver Occupied Sensor is not to factory specifications.
OBDII Code B1674 - Seat Driver Occupied Input Circuit Short To Battery - AutoCodes.com
B1674 Code - Seat Driver Occupied Input Circuit Short To Battery

What are the Possible Causes of the DTC B1674?

  • Faulty Seat Driver Occupied Sensor
  • Seat Driver Occupied Sensor harness is open or shorted
  • Seat Driver Occupied Sensor circuit poor electrical connection
  • Faulty Body Control Module (BCM)

How to Fix the DTC B1674?

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 B1674 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 B1674 code?

Need more information on how to fix the B1674 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1674 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

  • B1674 Chrysler β€” Power Liftgate Close Direction Ratchet Secondary Switch Performance
  • B1674 Dodge β€” Power Liftgate Close Direction Ratchet Secondary Switch Performance
  • B1674 Jeep β€” Power Liftgate Close Direction Ratchet Secondary Switch Performance
  • B1674 RAM β€” Power Liftgate Close Direction Ratchet Secondary Switch Performance
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 B1674 Code

1. What are the common symptoms of OBDII code B1674 (Seat Driver Occupied Input Circuit Short To Battery)?

- The common symptoms include a malfunctioning airbag system, illuminated airbag warning light on the dashboard, and potential loss of functionality of the driver's seatbelt pretensioner.

2. What are the possible causes of OBDII code B1674?

- The code B1674 can be triggered by a short circuit in the wiring associated with the driver's seat occupancy sensor or a fault in the sensor itself. It can also be caused by issues with the airbag control module.

3. How serious is OBDII code B1674?

- This code should be taken seriously, as it indicates a potential safety issue with the airbag system. It is recommended to address the problem promptly to ensure the proper functionality of the airbag in case of an accident.

4. Can I continue driving with OBDII code B1674 present?

- It is not advisable to continue driving with this code present, as it may compromise the effectiveness of the airbag system in the event of a collision. It is recommended to have the issue diagnosed and repaired as soon as possible.

5. How can I diagnose OBDII code B1674?

- Diagnosis of this code typically involves using a diagnostic scanner to retrieve the specific fault codes stored in the vehicle's computer system. Additionally, a visual inspection of the wiring and sensor associated with the driver's seat occupancy system may be necessary.

6. What are some repair tips for fixing OBDII code B1674?

- Repairing this code may involve repairing or replacing damaged wiring, replacing the faulty seat occupancy sensor, or addressing any issues with the airbag control module. It is recommended to consult a professional mechanic for an accurate diagnosis and repair.

7. Will resetting the OBDII code B1674 turn off the airbag warning light?

- Resetting the code may temporarily turn off the airbag warning light, but if the underlying issue causing the fault code is not addressed, the light is likely to come back on. It is essential to diagnose and repair the problem to ensure the proper functioning of the airbag system.

8. Can a DIY enthusiast fix OBDII code B1674 at home?

- While some DIY enthusiasts may have the skills to diagnose and repair simple electrical issues, addressing OBDII code B1674, which involves the airbag system, is best left to experienced professionals due to safety concerns and the complexity of the system.

9. How much does it typically cost to repair OBDII code B1674?

- The cost of repairing this code can vary depending on the specific cause of the issue, the extent of the damage, and the labor rates in your area. It is advisable to obtain quotes from reputable mechanics or service centers for an accurate estimate.

10. Can OBDII code B1674 be prevented?

- While some causes of this code may be due to wear and tear or electrical faults, regular maintenance and inspections of the airbag system can help prevent issues like a short circuit in the seat occupancy sensor wiring. Regularly servicing the vehicle according to the manufacturer's recommendations can also help prevent such faults.

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