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 LIMITED, 4WD, PART TIMEREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESPARK ASSIST MODULE (PTS) - ELECTRICAL DIAGNOSTICS
2009 Jeep Liberty Limited, 4WD, Part Time
Park Assist Module (PTS) - Electrical Diagnostics
2009 Jeep Liberty Limited, 4WD, Part TimeSECTION Park Assist Module (PTS) - Electrical Diagnostics
- Diagnostic Code Index
- DTC Troubleshooting
- B1230-PTS Sensor 8 Circuit Performance
- B1231-PTS Sensor 8 Circuit Low
- B1233-PTS Sensor 8 Ring Time Too Short
- B1234-PTS Sensor 8 Ring Time Too Long
- B1235-PTS Sensor 9 Circuit Performance
- B1236-PTS Sensor 9 Circuit Low
- B1238-PTS Sensor 9 Ring Time Too Short
- B1239-PTS Sensor 9 Ring Time Too Long
- B123A-PTS Sensor 10 Circuit Performance
- B123B-PTS Sensor 10 Circuit Low
- B123D-PTS Sensor 10 Ring Time Too Short
- B123E-PTS Sensor 10 Ring Time Too Long
- B127B-PTS Sensor 11 Circuit Performance
- B127C-PTS Sensor 11 Circuit Low
- B127E-PTS Sensor 11 Ring Time Too Short
- B127F-PTS Sensor 11 Ring Time Too Long
- B210D-Battery Voltage Low
- B210E-Battery Voltage High
- B2126-Sensor Supply Voltage Low
- B2127-Sensor Supply Voltage High
- B212A-PTS Display Supply Voltage Low
- B222A-Vehicle Line Mismatch
- B2232-(PTS) PARKTRONICS Internal
- B2234-(PTS) PARKTRONICS Rear Display Internal
- U0141-Lost Communication With Front Control Module
- U0155-Lost Communication With Cluster/CCN
- U0423-Implausible Data Received From Cluster/CCN
- U0431-Implausible Data From FCM (TIPM)
- U1101-Lost Communication With PTS Display
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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.