AutoCodes – Generic – B1B7E

B1B7E Code - Passenger Seat Weight Sensor 2 Right Front Input Circuit Low

Quick Answer

If the module detects that the sensor input is less than 3.4 +/- 0.6% of the Seat Weight Sensor 5 Volt circuit voltage. Common causes include Faulty Right Front Passenger Seat Weight Sensor, Right Front Passenger Seat Weight Sensor harness is open or shorted, Right Front 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: B1B7E indicates Passenger Seat Weight Sensor 2 Right Front Input Circuit Low.
Common causes: Common causes include Faulty Right Front Passenger Seat Weight Sensor, Right Front Passenger Seat Weight Sensor harness is open or shorted, Right Front 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 679

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 Aug 22, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1B7E Description

If the module detects that the sensor input is less than 3.4 +/- 0.6% of the Seat Weight Sensor 5 Volt circuit voltage. This Diagnostic Trouble Code (DTC) will also set if the Seat Weight Sensor 5 Volt circuit is shorted to ground. However, this condition would prevent communication with the Occupant Classification Module (OCM) and cause a Lost Communication With OCM DTC to set in other modules. Also, this DTC will remain active after the condition that set this fault is no longer present. This condition is referred to as latching the DTC for the ignition cycle. Cycling the ignition key will change the status from active to stored if the condition that set the fault is no longer present.

OBDII Code B1B7E - Passenger Seat Weight Sensor 2 Right Front Input Circuit Low - AutoCodes.com — B1B7E Code - Passenger Seat Weight Sensor 2 Right Front Input Circuit Low

What does this mean?

What are the Possible Causes of the DTC B1B7E?

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

How to Fix the DTC B1B7E?

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 B1B7E 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 B1B7E code?

Need more information on how to fix the B1B7E code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1B7E code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B1B7E Chrysler — Passenger Seat Weight Sensor 2 Right Front Input Circuit Low
B1B7E Dodge — Passenger Seat Weight Sensor 2 Right Front Input Circuit Low
B1B7E Jeep — Passenger Seat Weight Sensor 2 Right Front Input Circuit Low
B1B7E Mitsubishi — Passenger Seat Weight Sensor 2 Right Front Input Circuit Low
B1B7E RAM — Passenger Seat Weight Sensor 2 Right Front Input Circuit Low

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 B1B7E Code

1. What are common symptoms of OBDII code B1B7E related to the Passenger Seat Weight Sensor 2 Right Front Input Circuit Low?

- Common symptoms include the airbag light illuminating on the dashboard, the passenger airbag being disabled, and potential issues with the airbag system's functionality.

2. What can cause the OBDII code B1B7E Passenger Seat Weight Sensor 2 Right Front Input Circuit Low?

- The code can be triggered by a faulty weight sensor in the passenger seat, damaged wiring, or a bad connection in the sensor circuit.

3. How serious is the OBDII code B1B7E Passenger Seat Weight Sensor 2 Right Front Input Circuit Low?

- This code is related to the passenger airbag system, so it is important to address it promptly. If left unresolved, it could potentially affect the proper deployment of the passenger airbag in the event of a collision.

4. Can I continue driving with the OBDII code B1B7E Passenger Seat Weight Sensor 2 Right Front Input Circuit Low?

- It is not recommended to drive with this code present, as it could compromise the safety of the passenger airbag system. It is advisable to have the issue diagnosed and repaired as soon as possible.

5. How can I diagnose the OBDII code B1B7E Passenger Seat Weight Sensor 2 Right Front Input Circuit Low?

- Diagnosis typically involves using a professional OBDII scanner to read and interpret the code, as well as conducting physical inspections of the passenger seat weight sensor and its wiring for any visible damage or issues.

6. Is it possible to repair the OBDII code B1B7E Passenger Seat Weight Sensor 2 Right Front Input Circuit Low myself?

- While some DIY enthusiasts may attempt to address this issue, it is recommended to have a qualified mechanic or technician diagnose and repair the problem, especially when it involves the airbag system.

7. How much does it cost to fix the OBDII code B1B7E Passenger Seat Weight Sensor 2 Right Front Input Circuit Low?

- The cost of repair can vary depending on the underlying cause of the issue. It may involve replacing the weight sensor, repairing damaged wiring, or addressing connection issues. Expect costs to include parts and labor.

8. Are there any safety precautions I should take when dealing with the OBDII code B1B7E Passenger Seat Weight Sensor 2 Right Front Input Circuit Low?

- When working on components related to the airbag system, it is crucial to disconnect the vehicle's battery and wait for a specified period to ensure the system is safely deactivated before starting any repairs.

9. Can resetting the OBDII code B1B7E Passenger Seat Weight Sensor 2 Right Front Input Circuit Low make it go away permanently?

- Simply resetting the code without addressing the underlying issue will not resolve the problem permanently. The code will likely reappear until the root cause is identified and fixed.

10. How long does it typically take to repair the OBDII code B1B7E Passenger Seat Weight Sensor 2 Right Front Input Circuit Low?

- The repair time can vary depending on the specific issue causing the code. Simple fixes like reconnecting a loose wire may take a short time, while replacing a faulty weight sensor could require more labor.