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Home >> Dodge and Ram >> 2024 >> ProMaster 2500 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 39 (Brake System Control Module (BSCM) - DTCS C10ED-00 To C2111-00) >> DTC Troubleshooting >> C121C-00 Torque Request Signal Denied >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2024 RAM ProMaster EV. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
POWERTRAIN CONTROL MODULE (PCM) DTCS
BRAKE SYSTEM CONTROL MODULE (BSCM)
POWERTRAIN CONTROL MODULE (PCM)

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