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, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCEIGNITION SYSTEMIGNITION CONTROL - ELECTRICAL DIAGNOSTICSDIAGNOSTIC CODE INDEX
2008 Jeep Liberty Sport, RWD, Standard
Diagnostic Code Index
2008 Jeep Liberty Sport, RWD, StandardSECTION Diagnostic Code Index
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| B2101 | IGNITION RUN/START INPUT CIRCUIT LOW |
| B2102 | IGNITION RUN/START INPUT CIRCUIT HIGH |
| B210D | BATTERY VOLTAGE LOW |
| B210E | BATTERY VOLTAGE HIGH |
| B2142 | IGNITION OFF DRAW (IOD) FUSE NOT PRESENT |
| B219A | IGNITION UNLOCK RUN/START CONTROL CIRCUIT OVERCURRENT |
| B219F | IGNITION OFF DRAW (IOD) FUSE BLOWN |
| B2206 | CURRENT VIN MISSING / MISMATCH |
| B222C | VEHICLE CONFIGURATION NOT PROGRAMMED |
| U0100 | LOST COMMUNICATION WITH ECM/PCM |
| U0101 | LOST COMMUNICATION WITH TCM |
| U0114 | LOST COMMUNICATION WITH FINAL DRIVE CONTROL MODULE |
| U0121 | LOST COMMUNICATION WITH ANTI-LOCK BRAKE MODULE |
| U0151 | LOST COMMUNICATION WITH OCCUPANT RESTRAINT CONTROLLER |
| U0154 | LOST COMMUNICATION WITH OCCUPANT CLASSIFICATION MODULE |
| U0155 | LOST COMMUNICATION WITH CLUSTER/CCN |
| U0164 | LOST COMMUNICATION WITH HVAC CONTROL MODULE |
| U0168 | LOST COMMUNICATION WITH VEHICLE SECURITY CONTROL MODULE (SKREEM/WCM) |
| U0184 | LOST COMMUNICATION WITH RADIO |
| U0186 | LOST COMMUNICATION WITH AUDIO AMPLIFIER |
RENDER: 1.0x
NO RELATED
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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.