AutoCodes – RAM – B1B84 RAM

B1B84 RAM Code - Passenger Seat Weight Sensor 2 Left Rear Input Circuit High

Quick Answer

If the module detects that the sensor input is greater than 96 +/- 0.6% of the Seat Weight Sensor 5 Volt circuit voltage. Common causes include Faulty Left Rear Passenger Seat Weight Sensor, Left Rear Passenger Seat Weight Sensor harness is open or shorted, Left Rear Passenger Seat Weight 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: B1B84 RAM indicates Passenger Seat Weight Sensor 2 Left Rear Input Circuit High.
Common causes: Common causes include Faulty Left Rear Passenger Seat Weight Sensor, Left Rear Passenger Seat Weight Sensor harness is open or shorted, Left Rear Passenger Seat Weight 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 547

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Aug 22, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1B84 RAM Description

If the module detects that the sensor input is greater than 96 +/- 0.6% of the Seat Weight Sensor 5 Volt circuit voltage. Note that this Diagnostic Trouble Code (DTC) will remain active after the condition that set this fault is no longer present. Performing the Occupant Classification Module (OCM) System Verification Test will change the status from active to stored if the condition that set the fault is no longer present.

OBDII Code B1B84 RAM - Passenger Seat Weight Sensor 2 Left Rear Input Circuit High - AutoCodes.com — B1B84 RAM Code - Passenger Seat Weight Sensor 2 Left Rear Input Circuit High

What does this mean?

What are the Possible Causes of the DTC B1B84 RAM?

Faulty Left Rear Passenger Seat Weight Sensor
Left Rear Passenger Seat Weight Sensor harness is open or shorted
Left Rear Passenger Seat Weight Sensor circuit poor electrical connection
Faulty Occupant Classification Module (OCM)

How to Fix the DTC B1B84 RAM?

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 B1B84 RAM 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 B1B84 RAM code?

Need more information on how to fix the B1B84 RAM code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1B84 RAM code diagnosed by a professional: Find a repair shop in your area

Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service

Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.

Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.

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 B1B84 RAM Code

1. What are common symptoms of OBDII code B1B84 RAM related to the Passenger Seat Weight Sensor 2 Left Rear Input Circuit High?

- Common symptoms include the airbag warning light illuminating on the dashboard, potential non-deployment of the airbag, and diagnostic trouble codes related to the passenger seat weight sensor.

2. What are possible causes of OBDII code B1B84 RAM indicating an issue with the Passenger Seat Weight Sensor 2 Left Rear Input Circuit High?

- Possible causes may include a faulty weight sensor, damaged wiring or connectors in the sensor circuit, or issues with the airbag control module.

3. How can I diagnose the Passenger Seat Weight Sensor 2 Left Rear Input Circuit High issue associated with OBDII code B1B84 RAM?

- Diagnosis typically involves using a diagnostic scanner to retrieve the trouble code, conducting visual inspections of the sensor and wiring, and performing circuit tests to pinpoint the exact cause of the fault.

4. Can I drive my vehicle with the OBDII code B1B84 RAM triggered by the Passenger Seat Weight Sensor 2 Left Rear Input Circuit High issue?

- It is not recommended to drive the vehicle with this code present, as it may indicate a potential safety concern with the airbag system. Prompt inspection and repair are advised.

5. Is it possible to reset the OBDII code B1B84 RAM related to the Passenger Seat Weight Sensor 2 Left Rear Input Circuit High without fixing the underlying issue?

- Resetting the code without addressing the root cause will likely result in the code reappearing. It is essential to diagnose and repair the problem to ensure safe operation of the airbag system.

6. What repair tips can help resolve the OBDII code B1B84 RAM linked to the Passenger Seat Weight Sensor 2 Left Rear Input Circuit High?

- Repair tips may include checking and repairing damaged wiring, replacing the faulty weight sensor, ensuring proper connections, and clearing the trouble code after completing the repairs.

7. Are there any safety implications associated with the OBDII code B1B84 RAM concerning the Passenger Seat Weight Sensor 2 Left Rear Input Circuit High?

- Yes, this code indicates a potential issue with the passenger seat weight sensor, which could affect the deployment of the airbag in the event of a collision. It is crucial to address this problem promptly for safety reasons.

8. Can a DIY enthusiast with automotive repair knowledge fix the OBDII code B1B84 RAM tied to the Passenger Seat Weight Sensor 2 Left Rear Input Circuit High?

- Depending on the individual's skill level and access to proper tools, a DIY enthusiast may be able to diagnose and repair this issue. However, dealing with airbag systems requires caution and expertise, so professional assistance is recommended if unsure.

9. How much does it typically cost to repair the OBDII code B1B84 RAM associated with the Passenger Seat Weight Sensor 2 Left Rear Input Circuit High?

- Repair costs can vary depending on the specific cause of the issue, parts needed for replacement, and labor charges. It is advisable to obtain quotes from automotive professionals to determine the exact cost.

10. Are there any recalls or technical service bulletins related to the OBDII code B1B84 RAM regarding the Passenger Seat Weight Sensor 2 Left Rear Input Circuit High?

- It is advisable to check with the vehicle manufacturer or authorized dealerships for any recalls or technical service bulletins related to this specific OBDII code to see if there are known issues or remedies available.