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Home › Jeep › 2021 › Wrangler Islander, 2.0L Eng VIN N, Full Time T/Case Control › Repair and Diagnosis › Engine Performance › System › 2.0L - DTCS P2AB8 To U0140 › DTC Troubleshooting › U012D-Lost Communication With Alternator Control Module › Set Condition

Set Condition

The Powertrain Control Module (PCM) has lost communication with the Smart Alternator over the LIN Bus.