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 RAM2024DURANGO SRT HELLCAT PLUSREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTENTERTAINMENT SYSTEMSRADIO FREQUENCY MODULE (RF HUB) - DTCS B1A72-11 TO B215B-12DTC TROUBLESHOOTINGB215B-12 IGNITION RUN/START 2 CONTROL-CIRCUIT SHORT TO BATTERYDIAGNOSTIC TEST
2024 Dodge and Ram Durango SRT Hellcat Plus
Diagnostic Test
2024 Dodge and Ram Durango SRT Hellcat PlusSECTION Diagnostic Test
- CHECK FOR AN ACTIVE DTC
- Turn the ignition on.
- With the scan tool, record and erase the DTCs.
- Try to start the engine.
- With the scan tool, read RF Hub DTCs.
Is the DTC active?
Yes
- Go To 2
No
- The condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension and repair as necessary. If no problems are found, test complete.
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
- CHECK THE (F20) IGNITION SWITCH OUTPUT CIRCUIT FOR A SHORT TO BATTERY
- Turn the ignition off.
- Disconnect the Radio Frequency Hub (RF Hub) C1 harness connector.
- Turn the ignition on.
- Measure the voltage between ground and the (F20) Ignition Switch Output circuit at the Radio Frequency Hub (RF Hub) C1 harness connector.
Is there any voltage present?
Yes
- Repair the (F20) Ignition Switch Output circuit for a short to voltage.
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
No
- Replace the Radio Frequency Hub (RF Hub) Module in accordance with the Service Information. Refer to MODULE, RADIO FREQUENCY (RF HUB), REMOVAL .
- Perform the RADIO FREQUENCY HUB VERIFICATION TEST. Refer to RADIO FREQUENCY HUB (RF HUB) VERIFICATION TEST .
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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.