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 MANUALSJEEP2023GLADIATOR FREEDOM, PART TIME T/CASE CONTROLREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTENTERTAINMENT SYSTEMSRADIO FREQUENCY MODULE (RF HUB) - DTCS C1503-31 TO U1517-87
2023 Jeep Gladiator Freedom, Part Time T/Case Control
Radio Frequency Module (RF Hub) - DTCS C1503-31 To U1517-87
2023 Jeep Gladiator Freedom, Part Time T/Case ControlSECTION Radio Frequency Module (RF Hub) - DTCS C1503-31 To U1517-87
- DTC Troubleshooting
- C1503-31-Tire Pressure Sensor 3-No Signal
- C1503-4B-Tire Pressure Sensor 3-Over Temperature
- C1504-07-Tire Pressure Sensor 4-Mechanical Failures
- C1504-16-Tire Pressure Sensor 4-Circuit Voltage Below Threshold
- C1504-31-Tire Pressure Sensor 4-No Signal
- C1504-4B-Tire Pressure Sensor 4-Over Temperature
- C151C-51-Tire Pressure Sensors Missing-Not Programmed
- C151D-00-Tire Pressure Sensor Location Undetermined
- C1597-00-TPM System Deactivated - Winter Mode
- C15CB-00-Front Axle Tire Pressure Placard Value Implausible
- C15CC-00-Rear Axle Tire Pressure Placard Value Implausible
- 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
- U0102-00-Lost Communication With Transfer Case Control Module / AWD
- 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
- U0151-00-Lost Communication With Occupant Restraint Controller (Orc)
- U0154-00-Lost Communication With Occupant Classification Module
- U0155-00-Lost Communication With Cluster-CCN
- U103C-00-Kin-IGNM Communication
- U115F-00-Lost Communication With Driver Presence Detection Module
- U140E-00-Implausible Vehicle Configuration Data Received
- U1433-01-Implausible Ignition Switch Status Message Received
- U1517-62-Body Controller Secret Code-Signal Compare Failure
- U1517-87-Body Controller Secret Code-Missing Message
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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.