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 RAM20232500 HD POWER WAGONREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 492 (RADIO FREQUENCY (RF HUB) MODULE - DTCS C1504-07 TO U1517-62 - 2500HD)
2023 Dodge and Ram 2500 HD Power Wagon
Section 492 (Radio Frequency (RF Hub) Module - DTCS C1504-07 To U1517-62 - 2500HD)
2023 Dodge and Ram 2500 HD Power WagonSECTION Section 492 (Radio Frequency (RF Hub) Module - DTCS C1504-07 To U1517-62 - 2500HD)
WARNING: This page is about a different car, the 2022 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
- DTC Troubleshooting
- C1504-07-Tire Pressure Sensor 4-Mechanical Failures
- C1504-31-Tire Pressure Sensor 4-No Signal
- C151C-00-Tire Pressure Sensors Missing
- 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
- C15CD-07-Tire Pressure Sensor 6-Mechanical Failures
- C15CD-31-Tire Pressure Sensor 6-No Signal
- C15CE-07-Tire Pressure Sensor 7-Mechanical Failures
- C15CE-31-Tire Pressure Sensor 7-No Signal
- U0001-00-Can C Bus
- U0002-00-Can C Bus Off Performance
- U0037-00-Lin Bus
- U0100-00-Lost Communication With ECM/Pcm "A"
- 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 "A"
- U0140-00-Lost Communication With Body Control Module
- U0155-00-Lost Communication With Cluster-CCN
- U103C-00-Kin/IGNM Communication
- U140E-00-Implausible Vehicle Configuration Data Received
- U1415-00-Implausible/Missing Vehicle Configuration Data
- U1433-01-Implausible Ignition Switch Status Message Received-General Electrical Failure
- U1454-00-Implausible Data Received From Gated Park Switch
- U1517-62-Body Controller Secret Code-Signal Compare Failure
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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.