AutoCodes – Chrysler – B2734 Chrysler

B2734 Chrysler Code - Passenger Occupant Detection Sensor Circuit Short To Battery

Quick Answer

The Occupant Detection Sensor (ODS) is a resistive sensor that is located in the front passenger seat. Common causes include Faulty Passenger Occupant Detection Sensor, Passenger Occupant Detection Sensor harness is open or shorted, Passenger Occupant Detection 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: B2734 Chrysler indicates Passenger Occupant Detection Sensor Circuit Short To Battery.
Common causes: Common causes include Faulty Passenger Occupant Detection Sensor, Passenger Occupant Detection Sensor harness is open or shorted, Passenger Occupant Detection 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.

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Code Popularity 1,342

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 Jan 26, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2734 Chrysler Description

The Occupant Detection Sensor (ODS) is a resistive sensor that is located in the front passenger seat. This sensor is only used for passenger seatbelt reminder. The seat sensor assumes a passenger is present when a minimum of 53.5 pounds (20kg) of weight is placed in the seat. The resistance of the sensor decreases, signaling to the ORC module that a passenger is present. The ORC then transmits this information to the Instrument cluster over the CAN bus. The passenger is only reminded to buckle up if the passenger seat occupant minimum weight threshold determined by the ODS is surpassed and the seat belt buckle is still not latched. The ODS receives battery voltage and clean ground through dedicated sensor plus and minus circuits from the ORC. The ORC receives, processes, and continuously monitors (monitor rate of 500 ms) the analog signal from the ODS. The ODS component is not repairable, if determined inoperable, it would require to be replaced with a new component. The airbag warning lamp will not set for this fault.
The ORC detects High voltage on the Passenger Occupant Detector Sensor Signal circuit for 2.5 - 5 seconds. The Diagnostic Trouble Code (DTC) will not latch for the entire ignition cycle. The code goes from Active to Stored 2.5 - 5 seconds after the code setting criteria is gone. This code also covers the Open fault.

OBDII Code B2734 Chrysler - Passenger Occupant Detection Sensor Circuit Short To Battery - AutoCodes.com — B2734 Chrysler Code - Passenger Occupant Detection Sensor Circuit Short To Battery

What does this mean?

What are the Possible Causes of the DTC B2734 Chrysler?

Faulty Passenger Occupant Detection Sensor
Passenger Occupant Detection Sensor harness is open or shorted
Passenger Occupant Detection Sensor circuit poor electrical connection
Faulty Occupant Detection Sensor (ODS)

How to Fix the DTC B2734 Chrysler?

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 B2734 Chrysler 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.

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Need Help with the 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 B2734 Chrysler Code

1. What are the common symptoms of OBDII code B2734 in a Chrysler vehicle?

- Common symptoms include the airbag warning light illuminated on the dashboard and potential issues with the passenger side airbag deployment.

2. What does the OBDII code B2734 Chrysler indicate?

- This code indicates a problem with the Passenger Occupant Detection Sensor Circuit Short To Battery.

3. What are the possible causes of the Passenger Occupant Detection Sensor Circuit Short To Battery code?

- Possible causes include a short circuit in the wiring, a faulty passenger occupant detection sensor, or issues with the airbag control module.

4. How can I diagnose the issue related to code B2734 in a Chrysler vehicle?

- Diagnostic steps may include checking the wiring harness for shorts, testing the passenger occupant detection sensor, and scanning the airbag control module for fault codes.

5. Can I still drive my Chrysler vehicle with the B2734 code present?

- It is not recommended to drive the vehicle with an active airbag system fault. Get the issue diagnosed and repaired promptly to ensure the safety features work correctly.

6. Is it possible to reset the B2734 code without fixing the underlying issue?

- Resetting the code without addressing the root cause would not resolve the problem. It is essential to diagnose and repair the issue to prevent potential safety hazards.

7. How much does it typically cost to repair the Passenger Occupant Detection Sensor Circuit Short To Battery issue in a Chrysler vehicle?

- Repair costs can vary depending on the exact cause of the problem, but it may range from a few hundred to over a thousand dollars, including parts and labor.

8. Can I fix the B2734 code myself, or do I need a professional mechanic?

- While some DIY enthusiasts may attempt to diagnose and repair this issue, dealing with airbag systems can be complex and dangerous. It is generally recommended to seek help from a qualified mechanic.

9. Are there any preventative measures to avoid encountering the B2734 code in a Chrysler vehicle?

- Regular maintenance and inspections of the airbag system, including the passenger occupant detection sensor, can help prevent issues that may trigger this fault code.

10. Does the B2734 code affect the overall safety of the vehicle?

- Yes, the B2734 code relating to the Passenger Occupant Detection Sensor Circuit Short To Battery can impact the proper functioning of the airbag system, potentially compromising passenger safety in the event of a collision.