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Home >> Dodge and Ram >> 2018 >> Charger Pursuit, 5.7L Eng VIN T, 4WD >> Repair and Diagnosis >> Accessories & Equipment >> Seats >> (Heated Seat Module (HSM) - Electrical Diagnostics) >> DTC Troubleshooting >> B21DD-85-System Voltage - Signal Above Allowable Range >> Possible Causes

Possible Causes

Possible Causes
CHARGING SYSTEM VOLTAGE HIGH
POWERTRAIN CONTROL MODULE (PCM) DIAGNOSTIC TROUBLE CODES (DTCS) PRESENT
BODY CONTROL MODULE (BCM) DIAGNOSTIC TROUBLE CODES (DTCS) PRESENT
HEATED SEAT MODULE (HSM)

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

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