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Home >> Dodge and Ram >> 2018 >> Charger Pursuit, 5.7L Eng VIN T, 4WD >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> (Radio Frequency (RF Hub) Module - Electrical Diagnostics) >> DTC Troubleshooting >> B21DD-84-System Voltage - Signal Below Allowable Range >> Diagnostic Test

Diagnostic Test

CHECK FOR ACTIVE CHARGING DTCS 

  1. With the scan tool, read PCM DTCs and record on the repair order.

    Are there any PCM Charging or Battery DTCs present?

    Yes 

    • Repair PCM DTC(s) in accordance with Service Information. Refer to DTC INDEX .

    No 

    • This DTC is for information only. At some time there was a low battery system voltage. Check the battery and charging system for an intermittent failure.