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.
2022 Jeep Compass RedFACTORY OEM SERVICE PROCEDURE
Radio Frequency Hub (RFH) Module
RADIO FREQUENCY HUB (RFH) MODULE
| Refer to COMPONENT INDEX . |
The RFH:
- Receives the input request to start from the ignition
- Energizes the key transponder in the key fob in order to read it
- Sends a random code to the transponder and in return, receives a mini krypt code from the transponder
- Validates the key fob using LF antennas
- Receives and validates transmission in park via Shift Lock switch (remote start use only)
- Validates that the brake is engaged
- Sends a request to the BCM to change the ignition state
Factory Service Tools
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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.
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