LEMON Manuals
: Even more car manuals for everyone: 1960-2025
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Dodge and Ram
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2009
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Challenger R/T, EZH
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Repair and Diagnosis
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Steering
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Steering Control Systems
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Steering Control Module (SCM) - Electrical Diagnostics
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DTC Troubleshooting
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U0121-Lost Communication With Anti-Lock Brake System (Abs) Control Module
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Possible Causes
July 1:
So it begins
. Don't worry, this is not in the correct legal jurisdiction!
Possible Causes
Possible Causes
CAN B OR CAN C BUS CIRCUITS OPEN OR SHORTED
DTCS RELATED TO BATTERY VOLTAGE, IGNITION, OR VIN MESSAGES
TIPM NOT CONFIGURED CORRECTLY
ABS MODULE
ABS MODULE POWER AND GROUND
MODULE THAT SET THIS DTC