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 220 ((TRAILER CAN GATEWAY MODULE (TCGWM) - ELECTRICAL DIAGNOSTICS - 1500))
2024 Dodge and Ram 1500 TRX
Section 220 ((Trailer Can Gateway Module (TCGWM) - Electrical Diagnostics - 1500))
2024 Dodge and Ram 1500 TRXSECTION Section 220 ((Trailer Can Gateway Module (TCGWM) - Electrical Diagnostics - 1500))
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 Troubleshooting
- 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.