AutoFixDB - Free OBD-II diagnostic trouble code lookup. Find causes, symptoms, diagnostic steps and repair solutions.

Overview

OBD‑II B00C8 indicates a fault with the passenger seat occupant position sensor B circuit or signal, affecting body safety systems such as airbag occupancy classification

Common Symptoms

Airbag warning light illuminated
Occupant classification warning
Possible loss of passenger airbag enable/disable functionality

Most Common Causes

Faulty passenger seat occupant position sensor B high

Sensor may be damaged, worn, or out of specification

Open or short in sensor wiring/harness high

Wiring errors frequently trigger this body code

Poor electrical connection at sensor or module medium

Loose connector or corrosion can create intermittent faults

Faulty airbag/occupant classification control module low

Less common but possible if module fails to interpret sensor data

Battery or electrical system anomaly low

Some non‑standard sources suggest electrical voltage sensor issues, but this is not widely corroborated

Diagnostic Steps

Retrieve all stored codes with professional OBD/UDS scanner supporting body modules

Expected: B00C8 is present and recorded as confirmed or pending

Interpretation: Confirms fault in occupant sensor circuit
Visually inspect passenger seat occupant sensor B connector and wiring harness

Expected: No broken wires, corrosion, or poor seating

Interpretation: Physical damage increases likelihood of wiring issue
Measure sensor output with multimeter or diagnostic tool according to OEM specification

Expected: Sensor signal within specified range

Interpretation: Out‑of‑range indicates sensor fault
Check airbag/occupant classification control module for communication errors

Expected: No communication errors

Interpretation: Communication issues suggest control module fault
Clear codes and perform test drive/seat occupancy tests

Expected: Codes should not return if repair successful

Interpretation: Persistent codes require deeper diagnosis

Repair Solutions

Replace passenger seat occupant position sensor B medium

Estimated Cost: $150 - $400

Labor cost varies by vehicle; recommended when sensor out of spec

Repair or replace damaged wiring/harness medium

Estimated Cost: $50 - $200

Depends on extent of wiring damage

Clean and reseat electrical connections easy

Estimated Cost: $0 - $50

Good preventative step

Replace airbag/occupant classification control module hard

Estimated Cost: $300 - $1000

Only if module failure confirmed

Common Misdiagnoses

Avoid these common diagnostic mistakes:

Assuming code relates to battery voltage sensor without corroborating vehicle‑specific documentation

Frequently Asked Questions

What is the definition of the B00C8 engine code?

When your OBD-II scanner reads B00C8, it means: Passenger Seat Occupant Position Sensor B (Subfault). This code is related to the vehicle's Sensors.

Should I stop driving if I have B00C8?

This is a medium priority issue. May illuminate airbag/occupant warning lights and potentially affect passenger airbag deployment logic

What happens when the B00C8 code is active?

Drivers often report: Airbag warning light illuminated, Occupant classification warning, Possible loss of passenger airbag enable/disable functionality when this code is present.

Potential causes for OBDII code B00C8

It can be caused by several factors, most notably: Faulty passenger seat occupant position sensor B, Open or short in sensor wiring/harness, Poor electrical connection at sensor or module.

How much does it cost to fix B00C8?

Expect to pay around $50 if the issue is a Clean and reseat electrical connections, but up to $1000 if the Replace airbag/occupant classification control module needs replacement.

Does B00C8 affect Ford, Toyota, or Honda?

B00C8 is not specific to any one brand. It can appear on Ford, Dodge, Toyota, Honda, Jeep, and other vehicles.

B00C8: Passenger Seat Occupant Position Sensor B (Subfault)