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))DTC TROUBLESHOOTINGU116B-00-LOST COMMUNICATION WITH TRAILER INTERFACE MODULEDIAGNOSTIC TEST
2024 Dodge and Ram 1500 TRX
Diagnostic Test
2024 Dodge and Ram 1500 TRXSECTION Diagnostic Test
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.
READ AND RECORD DTCS AND ENVIRONMENTAL DATA - ERASE DTCS AND CHECK FOR DTC TO RETURN
- Turn the ignition on.
- With the scan tool, read DTCs and record on the repair order.
- With the scan tool, read DTCs in the TTPM Module.
Is the DTC active?
Yes
- Refer to the appropriate No Response Procedure. Refer to NO RESPONSE FROM ECU .
No
- Refer to the appropriate STORED LOST COMMUNICATION DTCS Refer to STORED LOST COMMUNICATION DTCS .
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.