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Home >> Dodge and Ram >> 2021 >> ProMaster 2500 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> (Body Control Module (BCM) - Electrical Diagnostics) >> DTC Troubleshooting >> B12C9-86-BSM (Brake System Control Module) Vehicle Speed Failure - Signal Invalid >> Possible Causes
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Possible Causes

Possible Causes
DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
BCM NOT CONFIGURED CORRECTLY
ABS POWER AND GROUND
ANTI-LOCK BRAKE MODULE (ABS)
MODULE THAT SET THIS DTC