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Home >> Jeep >> 2009 >> Liberty Limited, 4WD, Part Time >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P2175 To U1417 (Gas) >> U0121-Lost Communication With Anti-Lock Brake Module >> Possible Causes
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Possible Causes

Possible Causes 
DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
CAN C BUS CIRCUITS OPEN OR SHORTED
ABS MODULE POWER AND GROUND
ABS MODULE
POWERTRAIN CONTROL MODULE (PCM)
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