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 MANUALSJEEP2008LIBERTY SPORT, RWD, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESELECTRONIC CONTROL MODULES - ELECTRICAL DIAGNOSTICS
2008 Jeep Liberty Sport, RWD, Automatic
Electronic Control Modules - Electrical Diagnostics
2008 Jeep Liberty Sport, RWD, AutomaticSECTION Electronic Control Modules - Electrical Diagnostics
- Diagnostic Code Index
- Electronic Control Modules - Electrical Diagnostics
- DTC Troubleshooting
- U0001-Can C Bus Circuit
- U0010-Can Interior Bus
- U0011-Can Interior Bus Off Performance
- U0100-Lost Communication With ECM/Pcm
- U0100-Lost Communication With TCM
- U0103-Lost Communication With ESM
- U0114-Lost Communication With FDCM
- U0121-Lost Communication With Abs
- U0126-Lost Communication With SAS
- U0141-Lost Communication With Front Control Module (TIPM)
- U0151-Lost Communication With Orc
- U0154-Lost Communication With OCM
- U0155-Lost Communication With Cluster/CCN
- U0159-Lost Communication With Park Assist Module
- U0164-Lost Communication With A/C Heater Control Module (HVAC)
- U0167-Lost Communication With Intrusion Transceiver Module (ITM)
- U0168-Lost Communication With WCM
- U0169-Lost Communication With Sunroof Control Module (SUNR)
- U0184-Lost Communication With Radio
- U0186-Lost Communication With Audio Amplifier
- U0187-Lost Communication With DVD Player
- U0197-Lost Communication With Hands Free Module (HFM)
- U0203-Lost Communication With Driver Door Module (DDM)
- U0204-Lost Communication With Passenger Door Module (PDM)
- U0209-Lost Communication With Memory Seat Control Module (MSMD)
- U1147-Additional Can Interior Bus Ecu Detected
- U1148-Additional Can C Bus Ecu Detected
- *Both Diagnostic Can C (+) And Diagnostic Can C (-) Circuits Open
- *Diagnostic Can C (+) And/Or Diagnostic Can C (-) Circuits High
- *Diagnostic Can C (+) Circuit Low
- *Diagnostic Can C (+) Circuit Open
- *Diagnostic Can C (+) Shorted To Diagnostic Can C (-)
- *Diagnostic Can C (-) Circuit Low
- *Diagnostic Can C (-) Circuit Open
- *No Response From A/C Heater Control Module (HVAC - ATC)
- *No Response From A/C Heater Control Module (HVAC - MTC)
- *No Response From Abs (Antilock Brake Module)
- *No Response From Amp (Amplifier)
- *No Response From CCN (Cluster)
- *No Response From Driver Door Module (DDM)
- *No Response From ECM (Engine Control Module) - Diesel
- *No Response From ESM (Electric Gear Shift Module)
- *No Response From Final Drive Control Module
- *No Response From Hands Free Module (HFM)
- *No Response From ITM (Intrusion Transceiver Module)
- *No Response From MSMD (Memory Seat Module)
- *No Response From OCM (Occupant Classification Module)
- *No Response From Orc (Occupant Restraint Controller)
- *No Response From Park Assist (PARKTRONICS) Module
- *No Response From Passenger Door Module (PDM)
- *No Response From Pcm (Powertrain Control Module) (NGC)
- *No Response From Radio
- *No Response From Steering Angle Sensor (SAS)
- *No Response From Sunroof Module (SUNR)
- *No Response From TCM (Powertrain Control Module) - NGC
- *No Response From TCM - Nag1/Diesel
- *No Response From TIPM (Totally Integrated Power Module)
- *No Response From Vehicle Entertainment System (VES)(DVD Monitor)
- *No Response From WCM (Sentry Key Remote Entry Module)
- *Stored Lost Communication DTCS
- Standard Procedure
- DTC Troubleshooting
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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.