AutoCodesChrysler – B1BBB Chrysler

B1BBB Chrysler Code - Passenger Seat Weight Sensor Input Shorted Together

Quick Answer

While the CAN bus ignition status is in IGN-RUN. Common causes include Faulty Occupant Classification Module (OCM), Occupant Classification Module (OCM) harness is open or shorted, Occupant Classification Module (OCM) 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
B1BBB Chrysler indicates Passenger Seat Weight Sensor Input Shorted Together.
Common causes
Common causes include Faulty Occupant Classification Module (OCM), Occupant Classification Module (OCM) harness is open or shorted, Occupant Classification Module (OCM) 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 613
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Aug 23, 2019
💬 Need more help? Ask Coddy for instant answers — it's free!

Code B1BBB Chrysler Description

While the CAN bus ignition status is in IGN-RUN. This code will set if the Occupant Classification Module (OCM) detects any two sensors voltages below 20mV for 10 minutes while any other sensor is greater than 40mV. Note: 1 a/d count is equal to 5mV.
OBDII Code B1BBB Chrysler - Passenger Seat  Weight Sensor Input Shorted Together - AutoCodes.com
B1BBB Chrysler Code - Passenger Seat Weight Sensor Input Shorted Together

What are the Possible Causes of the DTC B1BBB Chrysler?

  • Faulty Occupant Classification Module (OCM)
  • Occupant Classification Module (OCM) harness is open or shorted
  • Occupant Classification Module (OCM) circuit poor electrical connection

How to Fix the DTC B1BBB 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 B1BBB 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.

Need more information about the B1BBB Chrysler code?

Need more information on how to fix the B1BBB Chrysler code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1BBB Chrysler 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 B1BBB Chrysler Code

1. What does the OBDII code B1BBB mean for a Chrysler vehicle?

The code B1BBB indicates that the passenger seat weight sensor input is shorted together, which may affect the airbag system’s ability to function properly.

2. What are common symptoms of the B1BBB code?

Symptoms may include an illuminated airbag warning light, malfunctioning passenger airbag system, or the passenger seat weight sensor not detecting occupants accurately.

3. What causes the B1BBB code in a Chrysler vehicle?

This code is typically caused by damaged wiring, shorted electrical connections, a faulty seat weight sensor, or an issue with the airbag control module.

4. Can the B1BBB code affect airbag deployment?

Yes, the B1BBB code can potentially prevent the passenger airbag from deploying correctly in an accident, as the system may not detect the presence of a passenger.

5. How is the B1BBB code diagnosed?

A mechanic will use an OBDII scanner to confirm the code, inspect the passenger seat weight sensor wiring and connections, and test the sensor for proper functionality.

6. Can I drive with the B1BBB code active?

Driving with this code is not recommended, as it may compromise the safety of the passenger airbag system in the event of a collision.

7. How do you fix the B1BBB code?

Common fixes include repairing or replacing damaged wiring, reconnecting loose connections, or replacing the faulty passenger seat weight sensor if needed.

8. How much does it cost to repair the B1BBB code?

Repair costs can vary, but sensor replacement typically ranges from $100 to $300, while wiring repairs may cost less depending on the extent of the damage.

9. Is it possible to reset the B1BBB code without repairs?

Clearing the code without addressing the underlying issue is not recommended, as the problem will likely return and compromise airbag functionality.

10. Can a faulty airbag control module cause the B1BBB code?

Yes, in rare cases, a malfunctioning airbag control module can cause the B1BBB code, though this is less common than wiring or sensor issues.

Discuss the causes and fixes for B1BBB Chrysler OBDII Code

Code B1BBB Chrysler comments

No comments found for this page.

AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play