AutoCodes – Jeep – B1B84 Jeep

B1B84 Jeep 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 Jeep 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 531

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

What does this mean?

What are the Possible Causes of the DTC B1B84 Jeep?

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 Jeep?

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 Jeep 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 Jeep code?

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

Need Help with the Code?

Get the B1B84 Jeep 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 Jeep Code

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

The common symptoms include the airbag warning light illuminating on the dashboard, potential issues with the passenger airbag system, and the potential disabling of the passenger airbag.

2. What are the possible causes of OBDII code B1B84 in a Jeep related to the Passenger Seat Weight Sensor 2 Left Rear Input Circuit High?

Potential causes include a malfunctioning passenger seat weight sensor, damaged wiring or connectors in the sensor circuit, or a faulty airbag control module.

3. How can I diagnose OBDII code B1B84 in a Jeep related to the Passenger Seat Weight Sensor 2 Left Rear Input Circuit High?

Diagnosis typically involves using a diagnostic scanner to retrieve the specific fault code, inspecting the passenger seat weight sensor and its wiring for any visible damage, and testing the sensor's resistance and output signals.

4. Is it safe to drive with OBDII code B1B84 in a Jeep related to the Passenger Seat Weight Sensor 2 Left Rear Input Circuit High?

It is not recommended to drive with this code active, as it indicates a potential issue with the passenger airbag system, which could compromise passenger safety in the event of a collision.

5. Can I repair OBDII code B1B84 in a Jeep related to the Passenger Seat Weight Sensor 2 Left Rear Input Circuit High myself?

While some DIY enthusiasts may attempt to diagnose and repair this issue, it is recommended to seek professional help, especially when dealing with airbag-related systems due to the safety implications involved.

6. How much does it typically cost to repair OBDII code B1B84 in a Jeep related to the Passenger Seat Weight Sensor 2 Left Rear Input Circuit High?

The cost of repair can vary depending on the underlying cause of the issue. It may involve sensor replacement, wiring repairs, or module reprogramming, so it's best to consult with a mechanic for an accurate estimate.

7. Are there any recalls or technical service bulletins related to OBDII code B1B84 in a Jeep related to the Passenger Seat Weight Sensor 2 Left Rear Input Circuit High?

It's advisable to check with the manufacturer or authorized Jeep service centers for any relevant recalls or technical service bulletins addressing this specific OBDII code to ensure proper resolution.

8. How important is it to fix OBDII code B1B84 in a Jeep related to the Passenger Seat Weight Sensor 2 Left Rear Input Circuit High promptly?

It is crucial to address this issue promptly to ensure the proper functioning of the passenger airbag system and maintain passenger safety in the vehicle. Ignoring the code could lead to potential airbag system failure in an accident.

9. Can weather or environmental factors affect OBDII code B1B84 in a Jeep related to the Passenger Seat Weight Sensor 2 Left Rear Input Circuit High?

While extreme weather conditions or moisture exposure can potentially impact sensor performance, the code typically indicates an internal fault within the sensor or its circuitry that requires proper diagnosis and repair.

10. Is there a way to reset or clear OBDII code B1B84 in a Jeep related to the Passenger Seat Weight Sensor 2 Left Rear Input Circuit High without fixing the underlying issue?

Clearing the code without addressing the root cause will only temporarily remove the warning light, but the issue will likely recur. It's essential to diagnose and repair the problem to ensure the system functions correctly.