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Home >> Jeep >> 2002 >> Liberty Limited, 4WD, Part Time >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0839: 4WD Mode Sensor High >> Monitored & Set Conditions

Monitored & Set Conditions

4WD mode sensor input circuit voltage is monitored continuously with the ignition on. DTC will set if the 4WD mode sensor input circuit voltage raises above 4.78 volts for 5.72 seconds.