AutoCodes – RAM – B1B7E RAM

B1B7E RAM 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 RAM 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 585

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

What does this mean?

What are the Possible Causes of the DTC B1B7E RAM?

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 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 B1B7E 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 B1B7E RAM code?

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

Need Help with the Code?

Get the B1B7E 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 B1B7E RAM 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 warning light being illuminated on the dashboard and potential issues with the passenger seat airbag system.

2. What can cause OBDII code B1B7E to trigger in relation to the Passenger Seat Weight Sensor?

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

3. How serious is the OBDII code B1B7E related to the Passenger Seat Weight Sensor issue?

- This code should be taken seriously as it can affect the proper functioning of the passenger seat airbag system, potentially compromising passenger safety in the event of a collision.

4. Can I continue driving with OBDII code B1B7E triggered for the Passenger Seat Weight Sensor issue?

- It is not recommended to continue driving with this code triggered, as it indicates a problem with the airbag system that may not deploy properly in case of an accident.

5. What are some DIY repair tips for addressing OBDII code B1B7E linked to the Passenger Seat Weight Sensor problem?

- DIY repair tips may include checking the wiring and connectors for any damage, ensuring the passenger seat weight sensor is securely connected, and resetting the airbag system after any repairs.

6. How can I diagnose OBDII code B1B7E affecting the Passenger Seat Weight Sensor myself?

- Diagnosis may involve using an OBDII scanner to read the code, visually inspecting the passenger seat weight sensor and its connections, and performing a reset of the airbag system to see if the code reappears.

7. Is it safe to reset the OBDII code B1B7E associated with the Passenger Seat Weight Sensor issue on my own?

- It is safe to attempt a reset of the code yourself after addressing any possible causes or repairs. However, if the issue persists, it is recommended to seek professional assistance.

8. How much does it typically cost to repair OBDII code B1B7E related to the Passenger Seat Weight Sensor at a mechanic or dealership?

- Repair costs can vary depending on the exact cause of the issue, but it may involve diagnostic fees, parts replacement, and labor costs, which could range from a hundred to several hundred dollars.

9. Can OBDII code B1B7E be intermittent or sporadic in relation to the Passenger Seat Weight Sensor problem?

- Yes, the code may sometimes be intermittent, especially if the issue is related to loose connections or wiring problems that come and go. It is still important to address the underlying cause.

10. Are there any recalls or service bulletins related to OBDII code B1B7E and the Passenger Seat Weight Sensor issue?

- It is advisable to check with the vehicle manufacturer or authorized dealerships to see if there are any recalls or service bulletins addressing this specific OBDII code and related problem.