B1B89 Jeep 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 Jeep 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 Jeep Description
What are the Possible Causes of the DTC B1B89 Jeep?
- 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 Jeep?
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 Jeep 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 B1B89 Jeep code?
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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 Jeep Code
1. What does the OBDII code B1B89 mean on a Jeep?
Code B1B89 indicates an issue with the Passenger Seat Weight Sensor 1 Right Rear Input Circuit, specifically that the circuit is registering a high voltage condition.
2. What are the symptoms of the B1B89 code in a Jeep?
Symptoms may include the airbag warning light illuminating, the passenger airbag being disabled, or improper weight detection for the passenger seat.
3. What causes the B1B89 code to appear?
Common causes include a faulty passenger seat weight sensor, damaged wiring or connectors in the sensor circuit, or a malfunctioning airbag control module.
4. Can I drive my Jeep with the B1B89 code active?
While the vehicle can still be driven, the passenger airbag may not deploy correctly in an accident, posing a safety risk.
5. How can I diagnose the B1B89 code?
Diagnosis involves checking the wiring and connectors for damage or corrosion, testing the passenger seat weight sensor, and scanning the airbag control module for additional codes.
6. How do I fix the B1B89 code in a Jeep?
Repairs may include replacing the passenger seat weight sensor, repairing or replacing damaged wiring, or updating/reprogramming the airbag control module.
7. Is the B1B89 code specific to Jeeps?
This code is not Jeep-specific but is commonly reported in Jeep vehicles. It pertains to the passenger seat weight sensor circuit in vehicles equipped with OBDII systems.
8. How much does it cost to fix the B1B89 code?
Repair costs vary but may range from $150 to $500, depending on whether the issue is with the sensor, wiring, or the airbag module.
9. Can a B1B89 code be caused by a loose connector?
Yes, a loose or corroded connector in the passenger seat weight sensor circuit can trigger this code.
10. Do I need to recalibrate the sensor after fixing the B1B89 code?
Yes, after replacing or repairing the passenger seat weight sensor, recalibration may be necessary, which often requires specialized diagnostic tools.
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