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Home >> Chrysler >> 2021 >> Voyager LX, Gas >> Repair and Diagnosis >> Accessories & Equipment >> Warning Systems >> (Left Blind Spot Sensor Module (BSM) (LBSS) - Electrical Diagnostics) >> DTC Troubleshooting >> B21DD-84-System Voltage-Signal Below Allowable Range >> Possible Causes

Possible Causes

Possible Causes
RUN RELAY CONTROL CIRCUIT EXCESSIVE RESISTANCE
GROUND CIRCUIT EXCESSIVE RESISTANCE
VEHICLE CHARGING SYSTEM
LEFT BLIND SPOT SENSOR (LBSS)

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