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Home >> Dodge and Ram >> 2023 >> ProMaster 2500 >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> 3.6L - DTCS P1684 To P2115 >> DTC Troubleshooting >> P1684-Battery Was Disconnected >> Possible Causes

Possible Causes

Possible Causes
PCM LOST BATTERY POWER WITHOUT A PROPER KEY OFF SHUTDOWN SEQUENCE

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .