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Home >> Chrysler >> 2021 >> Voyager LX, Gas >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> (Passenger Door Module (PDM) (DMFL/R) - Electrical Diagnostics) >> DTC Troubleshooting >> B21DD-85-System Voltage - Signal Above Allowable Range >> Possible Causes

Possible Causes

Possible Causes
HIGH BATTERY SYSTEM VOLTAGE
CHARGING SYSTEM

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

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