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 428 ((TRAILER TIRE PRESSURE MODULE - ELECTRICAL DIAGNOSTICS - 1500))DIAGNOSTIC CODE INDEX
2024 Dodge and Ram 1500 TRX
Diagnostic Code Index
2024 Dodge and Ram 1500 TRXSECTION Diagnostic Code Index
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.