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Home >> Jeep >> 2020 >> Renegade Trailhawk >> Repair and Diagnosis >> Engine Performance >> System >> 1.3L - DTCS P2116 To U0155 >> DTC Troubleshooting >> U012D-Lost Communication With Alternator Control Module >> Possible Causes
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Possible Causes

Possible Causes
LIN BUS CIRCUIT OPEN OR SHORTED
ALTERNATOR
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. 

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