AutoCodes – Mitsubishi – B1B88 Mitsubishi

B1B88 Mitsubishi 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 Mitsubishi 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.

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Code Popularity 603

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 22, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1B88 Mitsubishi Description

If the module detects that the sensor input is less than 3.4 +/- 0.6% of the Seat Weight Sensor 5 Volt circuit voltage. This Diagnostic Trouble Code (DTC) will also set if the Seat Weight Sensor 5 Volt circuit is shorted to ground. However, this condition would prevent communication with the Occupant Classification Module (OCM) and cause a Lost Communication With OCM DTC to set in other modules. Also, this DTC will remain active after the condition that set this fault is no longer present. This condition is referred to as latching the DTC for the ignition cycle. Cycling the ignition key will change the status from active to stored if the condition that set the fault is no longer present.

OBDII Code B1B88 Mitsubishi - Passenger Seat Weight Sensor 1 Right Rear Input Circuit Low - AutoCodes.com — B1B88 Mitsubishi Code - Passenger Seat Weight Sensor 1 Right Rear Input Circuit Low

What does this mean?

What are the Possible Causes of the DTC B1B88 Mitsubishi?

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 Mitsubishi?

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 Mitsubishi 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 B1B88 Mitsubishi code?

Need more information on how to fix the B1B88 Mitsubishi code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1B88 Mitsubishi 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 B1B88 Mitsubishi Code

1. What are common symptoms of OBDII code B1B88 in a Mitsubishi related to the Passenger Seat Weight Sensor 1 Right Rear Input Circuit Low?

- Common symptoms may include the airbag warning light illuminating on the dashboard and potential issues with the passenger seat airbag system.

2. What could cause the OBDII code B1B88 in a Mitsubishi to trigger?

- The code B1B88 may be triggered by a fault in the wiring of the Passenger Seat Weight Sensor 1 Right Rear Input circuit or a malfunction in the weight sensor itself.

3. How can I diagnose the issue associated with the OBDII code B1B88 in my Mitsubishi?

- Diagnosing the problem may involve conducting a visual inspection of the wiring, checking for any loose connections, testing the weight sensor, and using a diagnostic scan tool to retrieve specific fault codes.

4. Is it safe to drive my Mitsubishi with the OBDII code B1B88 present?

- It is not recommended to drive the vehicle with the airbag warning light illuminated, as it indicates potential issues with the airbag system's functionality, specifically the passenger seat airbag.

5. Can I reset the OBDII code B1B88 in my Mitsubishi without fixing the underlying issue?

- While you can clear the fault code temporarily, it is important to address the root cause of the problem to ensure the safety and proper functioning of the passenger seat airbag system.

6. What are some repair tips for resolving the OBDII code B1B88 in a Mitsubishi?

- Repair tips may include checking and repairing any damaged wiring, ensuring proper connections, recalibrating or replacing the weight sensor, and performing a thorough system reset.

7. How much does it typically cost to fix the Passenger Seat Weight Sensor 1 Right Rear Input Circuit Low issue in a Mitsubishi?

- The cost of fixing the problem can vary depending on the extent of the damage, the need for replacement parts, and labor costs. It is recommended to consult a professional mechanic for an accurate estimate.

8. Are there any recalls or technical service bulletins related to the OBDII code B1B88 in Mitsubishi vehicles?

- It is advisable to check with Mitsubishi or authorized dealerships for any recalls or technical service bulletins specific to the Passenger Seat Weight Sensor 1 Right Rear Input Circuit Low issue.

9. Can I attempt to repair the OBDII code B1B88 issue in my Mitsubishi on my own?

- While basic troubleshooting steps like checking connections and inspecting wiring can be done by DIY enthusiasts, complex repairs or sensor replacements may require the expertise of a trained mechanic.

10. How important is it to address the OBDII code B1B88 in a timely manner?

- It is crucial to address the issue promptly to ensure the proper functioning of the passenger seat airbag system and maintain the safety of occupants in the vehicle.