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 MANUALSJEEP2011LIBERTY LIMITED, 4WD, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTSEATSOCCUPANT CLASSIFICATION MODULE (OCM) - ELECTRICAL DIAGNOSTICSDTC TROUBLESHOOTINGB1C23-PASSENGER SEAT WEIGHT SENSOR 3 - LEFT FRONT CONFIGURATION MISMATCHDIAGNOSTIC TEST

2011 Jeep Liberty Limited, 4WD, Automatic

Diagnostic Test

2011 Jeep Liberty Limited, 4WD, AutomaticSECTION Diagnostic Test

RE-ZERO OCM SEAT WEIGHT SENSORS
NOTE:
Make sure that the battery is fully charged.
1. Turn the ignition on.
2. Verify that the passenger seat is empty.
  NOTE:
  Failure to follow the test instructions or aborting the test causes faults to set when performing the Occupant Classification Module System Verification Test. To prevent faults due to process errors: verify that all tests steps that led you here were performed as directed, verify that the ignition is in run. Wait 30 seconds after changing the seat weight before proceeding to allow the system to stabilize. Only press scan tool buttons when directed to do so and perform the Occupant Classification Module System Verification Test to completion.
3. With the scan tool in OCM, select More Options, System Tests and select Occupant Classification Module System Verification Test. Run the test by following the instructions displayed on the scan tool. When the test completes, wait two minutes and then proceed as follows.
4. With the scan tool, read the OCM DTC.
  Does the scan tool display active B1C23-PASSENGER SEAT WEIGHT 3 - LEFT FRONT CONFIGURATION MISMATCH DTC?
  
  Yes
  - Go To 2.
  No - Other DTCs Present
  - Diagnose and repair the DTC. for a complete list of DTCs. Refer to Diagnosis and Testing .
  No Active DTCs Present
  - Perform the OCS VERIFICATION TEST. Refer to OCS VERIFICATION TEST .
VERIFY PASSENGER SEAT RISER, TRACKS AND STRUCTURE
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.
1. Verify that the passenger seat is empty.
  CAUTION:
  To avoid seat weight sensor damage, the Strain Gage Alignment Tool 9698A must be used to when loosening or tightening the sensor retainers.
2. Make sure all of the Seat Weight Sensor mounting screws are tightened to torque specification. Refer to Specifications .
  WARNING:
  Turn the ignition on, then reconnect the 12-volt battery and wait two minutes before proceeding. Failure to follow these instructions may result in possible serious or fatal injury.

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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.