Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSDODGE AND RAM2023CHALLENGER SXT, RWDREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTINFOTAINMENTRADIO FREQUENCY MODULE (RF HUB) - DTCS B1A75-12 TO U1454-00
2023 Dodge and Ram Challenger SXT, RWD
Radio Frequency Module (RF Hub) - DTCS B1A75-12 To U1454-00
2023 Dodge and Ram Challenger SXT, RWDSECTION Radio Frequency Module (RF Hub) - DTCS B1A75-12 To U1454-00
- DTC Troubleshooting
- B1A75-12-Passive Entry Antenna 5 - Circuit Short To Battery
- B1A75-13-Passive Entry Antenna 5 - Circuit Open
- B1A76-13-Remote Start Antenna Circuit - Circuit Open
- B1A7B-01-Immobilizer Antenna (Kin) - General Electrical Failure
- B1A7D-01-Start Button - General Electrical Failure
- B1A7D-2A-Start Button - Stuck
- B1A8A-00-Multi-Module VIN Handshake Failure
- B215B-12-Ignition Run/Start 2 Control-Circuit Short To Battery
- B215B-14-Ignition Run/Start 2 Control - Circuit Short To Ground Or Open
- B2199-16-Battery Voltage - Circuit Voltage Below Threshold
- B2199-17-Battery Voltage - Circuit Voltage Above Threshold
- B21DD-84-System Voltage - Signal Below Allowable Range
- B21DD-85-System Voltage - Signal Above Allowable Range
- B2205-00-Original VIN Missing/Mismatch
- B22A0-49-RF Hub Internal - Internal Electronic Failure
- B259A-00-Front Driver Door Handle Sense
- B259A-01-Front Driver Door Handle Sense-General Electrical Failure
- B259B-00-Front Passenger Door Handle Sense
- B259B-01-Front Passenger Door Handle Sense-General Electrical Failure
- P0830-01-Clutch Pedal Switch-General Electrical Failure
- U0001-00-Can C Bus
- U0002-00-Can C Bus Off Performance
- U0100-00-Lost Communication With ECM/Pcm
- U0101-00-Lost Communication With TCM
- U0103-00-Lost Communication With Electric Gear Shift Module
- U0121-00-Lost Communication With Anti-Lock Brake System (Abs) Control Module
- U0140-00-Lost Communication With Body Control Module
- U0155-00-Lost Communication With Cluster-CCN
- U103C-00-Kin Communication
- U1197-00-Security Seed Response Not Received From ECM/Pcm
- U140E-00-Implausible Vehicle Configuration Data Received
- U1433-01-Implausible Ignition Switch Status Message Received - General Electrical Failure
- U1454-00-Implausible Data Received From The Gated Park Switch
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.