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 DIAGNOSIS (SINGLE PAGE)QUICK LOOKUPSDTC INDEXDTC INDEX (3 OF 3)MODULE, TRAILER CAN GATEWAY MODULE (TCGWM)
2024 Dodge and Ram 1500 TRX
Module, Trailer Can Gateway Module (TCGWM)
2024 Dodge and Ram 1500 TRXSECTION Module, Trailer Can Gateway Module (TCGWM)
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| C221C-00 | ECU NOT PROGRAMMED/FLASH REQUIRED |
| B2199-14 | BATTERY VOLTAGE-CIRCUIT SHORT TO GROUND OR OPEN |
| B2199-16 | BATTERY VOLTAGE-CIRCUIT VOLTAGE BELOW THRESHOLD |
| B2199-17 | BATTERY VOLTAGE-CIRCUIT VOLTAGE ABOVE THRESHOLD |
| B2199-49 | BATTERY VOLTAGE-INTERNAL ELECTRONIC FAILURE |
| B235A-00 | ECU IN-PLANT MODE |
| U0001-00 | CAN C BUS |
| U0002-00 | CAN C1 BUS OFF PERFORMANCE |
| U0011-00 | CAN INTERIOR BUS OFF PERFORMANCE |
| U0019-00 | CAN B BUS |
| U0020-00 | CAN B BUS OFF PERFORMANCE |
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.