B1B83 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 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.
Code B1B83 Description
What are the Possible Causes of the DTC B1B83?
- 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?
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 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.
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Information for Specific Makes
- B1B83 Chrysler — Passenger Seat Weight Sensor 2 Left Rear Input Circuit Low
- B1B83 Dodge — Passenger Seat Weight Sensor 2 Left Rear Input Circuit Low
- B1B83 Jeep — Passenger Seat Weight Sensor 2 Left Rear Input Circuit Low
- B1B83 Mitsubishi — Passenger Seat Weight Sensor 2 Left Rear Input Circuit Low
- B1B83 RAM — Passenger Seat Weight Sensor 2 Left Rear 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.
Frequently Asked Questions about B1B83 Code
1. What does the OBDII code B1B83 mean?
The B1B83 code indicates a low input issue in the Passenger Seat Weight Sensor 2 Left Rear Input Circuit, which is part of the system that detects passenger weight for airbag deployment.
2. What are the common symptoms of code B1B83?
Common symptoms include the airbag warning light turning on, the passenger airbag being disabled, and inconsistent passenger weight detection.
3. What causes the B1B83 code to appear?
Possible causes include a faulty weight sensor, damaged wiring or connectors in the seat sensor circuit, or a malfunctioning occupant classification module.
4. Can I still drive my car with the B1B83 code?
Yes, you can drive the car, but the passenger airbag may not deploy correctly in the event of an accident, which poses a safety risk.
5. How do I diagnose the B1B83 code?
Diagnosis involves scanning the system with an OBDII scanner, inspecting the seat weight sensor wiring and connectors, and checking the occupant classification module for faults.
6. How do you fix the B1B83 code?
Repairs include replacing the faulty seat weight sensor, repairing damaged wiring or connectors, or reprogramming or replacing the occupant classification module if needed.
7. Is the B1B83 code related to a recall?
It depends on your vehicle make and model. Check with your manufacturer or dealer for recalls related to the airbag or seat sensor system.
8. How much does it cost to repair the B1B83 code?
Repair costs vary but can range from $100 for wiring repairs to $1,000 or more for sensor or module replacements, depending on labor and parts.
9. Can I fix the B1B83 code myself?
If you’re experienced with automotive electronics, you may be able to repair wiring or replace the sensor. Otherwise, it’s best to leave it to a professional.
10. Will clearing the code solve the problem?
Clearing the code may turn off the warning temporarily, but the underlying issue must be fixed to prevent it from returning.
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