B1B89 RAM Code - Passenger Seat Weight Sensor 1 Right 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 Right Rear Passenger Seat Weight Sensor, Right Rear Passenger Seat Weight Sensor harness is open or shorted, Right 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
- B1B89 RAM indicates Passenger Seat Weight Sensor 1 Right Rear Input Circuit High.
- Common causes
- Common causes include Faulty Right Rear Passenger Seat Weight Sensor, Right Rear Passenger Seat Weight Sensor harness is open or shorted, Right 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 B1B89 RAM Description
What are the Possible Causes of the DTC B1B89 RAM?
- Faulty Right Rear Passenger Seat Weight Sensor
- Right Rear Passenger Seat Weight Sensor harness is open or shorted
- Right Rear Passenger Seat Weight Sensor circuit poor electrical connection
- Faulty Occupant Classification Module (OCM)
How to Fix the DTC B1B89 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 B1B89 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.
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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 B1B89 RAM Code
1. What are common symptoms of OBDII code B1B89 RAM related to the Passenger Seat Weight Sensor 1 Right Rear Input Circuit High?
- Common symptoms include the airbag warning light being illuminated on the dashboard and potential issues with the passenger side airbag system.
2. What could cause the OBDII code B1B89 RAM to indicate a Passenger Seat Weight Sensor 1 Right Rear Input Circuit High?
- The code may be triggered by a faulty weight sensor, wiring issues, a malfunctioning airbag control module, or a problem with the passenger seat occupancy detection system.
3. How can I diagnose the root cause of the B1B89 RAM code related to the Passenger Seat Weight Sensor?
- Diagnosing this code typically involves using a professional OBDII scanner to read the specific fault codes, testing the weight sensor and its connections, inspecting the wiring for damage, and checking the airbag control module for faults.
4. Can I repair the B1B89 RAM code issue with the Passenger Seat Weight Sensor on my own?
- While some basic troubleshooting like checking connections and fuses can be done by DIY enthusiasts, diagnosing and repairing the root cause of this specific code often requires specialized knowledge and tools, so professional assistance is recommended.
5. Is it safe to drive my vehicle with the OBDII code B1B89 RAM indicating a problem with the Passenger Seat Weight Sensor?
- It is not recommended to drive the vehicle with unresolved airbag system issues, as the passenger side airbag may not deploy properly in the event of a collision, potentially putting occupants at risk.
6. How much does it typically cost to repair the Passenger Seat Weight Sensor 1 Right Rear Input Circuit High issue associated with the B1B89 RAM code?
- The cost of repair can vary depending on the root cause of the issue, the extent of the damage, and the labor rates of the repair shop. It is advisable to get a professional diagnosis to determine the exact cost.
7. Can resetting the OBDII code B1B89 RAM related to the Passenger Seat Weight Sensor solve the problem temporarily?
- Resetting the code may temporarily turn off the warning light, but if the underlying issue is not addressed, the code is likely to return, indicating that the problem still exists.
8. Are there any safety implications if I ignore the OBDII code B1B89 RAM related to the Passenger Seat Weight Sensor?
- Ignoring this code can result in the passenger side airbag not functioning correctly in a crash, potentially leading to increased risk of injury to the passenger in the event of a collision.
9. How long does it typically take to repair the Passenger Seat Weight Sensor 1 Right Rear Input Circuit High issue causing the B1B89 RAM code?
- The repair time can vary depending on the exact cause of the issue, availability of parts, and the expertise of the mechanic. It is advisable to consult with a professional to get an estimate of the repair time.
10. Can a faulty Passenger Seat Weight Sensor 1 Right Rear Input Circuit High issue causing the B1B89 RAM code be fixed without replacing the sensor?
- In some cases, the issue may be resolved by repairing wiring connections, replacing damaged wiring, or addressing issues with the airbag control module without needing to replace the weight sensor itself.
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