AutoCodes – RAM – B1B83 RAM

B1B83 RAM Code - Passenger Seat Weight Sensor 2 Left Rear Input Circuit Low

Quick Answer

If the module detects that the sensor input is less than 3.4 +/- 0.6% of the (R701) 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: B1B83 RAM indicates Passenger Seat Weight Sensor 2 Left Rear Input Circuit Low.
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 555

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 B1B83 RAM Description

If the module detects that the sensor input is less than 3.4 +/- 0.6% of the (R701) 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 B1B83 RAM - Passenger Seat Weight Sensor 2 Left Rear Input Circuit Low - AutoCodes.com — B1B83 RAM Code - Passenger Seat Weight Sensor 2 Left Rear Input Circuit Low

What does this mean?

What are the Possible Causes of the DTC B1B83 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 B1B83 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 B1B83 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 B1B83 RAM code?

Need more information on how to fix the B1B83 RAM code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1B83 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 B1B83 RAM Code

1. What does the OBDII code B1B83 mean?

The B1B83 code indicates an issue with the Passenger Seat Weight Sensor 2 Left Rear Input Circuit, specifically that the circuit is reading a low voltage.

2. What are the common symptoms of code B1B83?

Symptoms may include the passenger airbag light staying on or flashing, the airbag system being disabled, or issues with the seat occupancy detection system.

3. What causes the B1B83 code to appear?

Common causes include damaged or corroded wiring, a malfunctioning seat weight sensor, loose electrical connections, or a fault in the airbag control module.

4. Can I drive my vehicle with the B1B83 code?

While the car can still be driven, the airbag system may not function properly, posing a safety risk in the event of an accident.

5. How do I diagnose the B1B83 code?

Diagnosis involves inspecting the seat weight sensor wiring, checking for loose connections, testing the voltage in the circuit, and using a scan tool to verify related data.

6. How is the B1B83 code typically repaired?

Repairs may include cleaning or replacing damaged wiring, securing loose connections, replacing the faulty weight sensor, or reprogramming the airbag control module.

7. Is the B1B83 code specific to RAM vehicles?

Yes, this code is specific to certain RAM models and pertains to the passenger seat weight sensor circuit.

8. Will resetting the code fix the B1B83 issue?

Resetting the code may temporarily clear it, but if the underlying problem isnâ€™t fixed, the code will return.

9. How much does it cost to repair the B1B83 code?

Repair costs vary depending on the specific issue, but it can range from $100 for simple wiring repairs to several hundred dollars if the weight sensor or airbag module needs replacement.

10. Can a faulty passenger seat weight sensor affect airbag deployment?

Yes, a malfunctioning sensor can prevent the airbag system from deploying properly, especially if the system cannot detect passenger presence accurately.