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 RAM20241500 TRXREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 450 (DTC INDEX (3 OF 3))MODULE, TRAILER TIRE PRESSURE
2024 Dodge and Ram 1500 TRX
Module, Trailer Tire Pressure
2024 Dodge and Ram 1500 TRXSECTION Module, Trailer Tire Pressure
WARNING: This page is about a different car, the 2023 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| C2209-00 | TIRE PRESSURE MONITOR INTERNAL- |
| 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 |
| U0001-00 | CAN C BUS- |
| U0401-00 | IMPLAUSIBLE DATA RECEIVED FROM ECM/PCM- |
| U0422-00 | IMPLAUSIBLE DATA RECEIVED FROM BODY CONTROL MODULE- |
| U0423-00 | IMPLAUSIBLE DATA RECEIVED FROM CLUSTER/CCN- |
| U0485-00 | IMPLAUSIBLE DATA RECEIVED FROM RADIO- |
| U116B-00 | LOST COMMUNICATION WITH TRAILER INTERFACE MODULE- |
| U151C-31 | IMPLAUSIBLE DATA RECEIVED FROM TRAILER INTERFACE MODULE-NO SIGNAL |
RENDER: 1.0x
NO RELATED
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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.