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Home >> Jeep >> 2008 >> Liberty Limited, 4WD, Part Time >> Repair and Diagnosis >> Engine Performance >> System >> DTCS U1110 To U1418, System Checks, Checking Pcm Power And Ground Circuits >> *Checking The Fuel Delivery System >> Possible Causes

Possible Causes

Possible Causes 
RESTRICTED FUEL SUPPLY LINE
FUEL PUMP INLET STRAINER PLUGGED
FUEL CONTAMINATION
(K31) FUEL PUMP CONTROL CIRCUIT SHORTED TO BATTERY VOLTAGE
(K31) FUEL PUMP CONTROL CIRCUIT SHORTED TO GROUND
(K31) FUEL PUMP CONTROL CIRCUIT OPEN
(N1) FUSED FUEL PUMP OUTPUT OPEN
(N1) FUSED FUEL PUMP OUTPUT SHORTED TO GROUND
FUEL PUMP MODULE
TOTALLY INTEGRATED POWER MODULE (TIPM)
POWERTRAIN CONTROL MODULE (PCM)