Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSJEEP2009LIBERTY SPORT, 4WD, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESOCCUPANT CLASSIFICATION MODULE (OCM) - ELECTRICAL DIAGNOSTICSDTC TROUBLESHOOTINGB1BBA-PASSENGER SEAT WEIGHT SENSOR SUPPLY CIRCUITDIAGNOSTIC TEST
2009 Jeep Liberty Sport, 4WD, Automatic
Diagnostic Test
2009 Jeep Liberty Sport, 4WD, AutomaticSECTION Diagnostic Test
- VERIFY THAT B1BBA-PASSENGER SEAT WEIGHT SENSOR SUPPLY CIRCUIT DTC IS ACTIVE
- With the scan tool, read the OCM DTCs.
Does the scan tool display active B1BBA-PASSENGER SEAT WEIGHT SENSOR SUPPLY CIRCUIT DTC?
Yes
WARNING: Turn the ignition off, disconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.
- With the scan tool, read the OCM DTCs.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.