B1B88 Chrysler Code - Passenger Seat Weight Sensor 1 Right Rear 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 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
- B1B88 Chrysler indicates Passenger Seat Weight Sensor 1 Right Rear Input Circuit Low.
- 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 B1B88 Chrysler Description
What are the Possible Causes of the DTC B1B88 Chrysler?
- 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 B1B88 Chrysler?
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 B1B88 Chrysler 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 B1B88 Chrysler Code
1. What does the OBDII code B1B88 mean on a Chrysler vehicle?
The code B1B88 indicates an issue with the Passenger Seat Weight Sensor 1 Right Rear Input Circuit, specifically that the circuit is registering a low voltage condition.
2. What are the common symptoms of the B1B88 code in a Chrysler?
Symptoms may include the airbag warning light illuminating, malfunctioning passenger seat weight classification, or the passenger airbag being disabled.
3. What causes the B1B88 code to appear in a Chrysler?
Common causes include damaged wiring, a faulty passenger seat weight sensor, a loose connector, or issues with the Occupant Classification System (OCS) module.
4. Can I drive my Chrysler safely with the B1B88 code?
Driving may be safe, but the passenger airbag may not deploy in a collision, compromising safety. It’s important to address the issue promptly.
5. How can I diagnose the B1B88 code in my Chrysler?
Diagnose the code by visually inspecting the seat weight sensor wiring and connectors, testing the sensor with a multimeter, and using a diagnostic scanner to check for related codes.
6. How do I fix the B1B88 code in a Chrysler?
Repairs may involve replacing the seat weight sensor, repairing damaged wiring, reconnecting loose connectors, or reprogramming the OCS module.
7. Is the B1B88 code covered under Chrysler’s warranty?
It depends on your vehicle’s warranty terms. Check with your dealership to see if the Occupant Classification System components are covered.
8. Can a low battery cause the B1B88 code in a Chrysler?
While unlikely, a weak or low battery can sometimes cause electrical issues. Ensure the battery is fully charged and functioning properly.
9. How much does it cost to repair the B1B88 code in a Chrysler?
Repair costs vary depending on the issue, but replacing the seat weight sensor typically costs between $200 and $600, including parts and labor.
10. Do I need to recalibrate the system after fixing the B1B88 code?
Yes, after replacing or repairing components related to the Passenger Seat Weight Sensor, the Occupant Classification System may need to be recalibrated using a diagnostic tool.
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