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Jeep
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2020
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Renegade Trailhawk
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Repair and Diagnosis
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Engine Performance
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System
›
1.3L - DTCS P2116 To U0155
›
DTC Troubleshooting
›
U012D-Lost Communication With Alternator Control Module
›
Possible Causes
Possible Causes
Possible Causes
LIN BUS CIRCUIT OPEN OR SHORTED
ALTERNATOR
POWERTRAIN CONTROL MODULE (PCM)
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding.