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 MANUALSHONDA2020CR-V HYBRID EXREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTDRIVERS ASSISTANCE SYSTEMS - ADASDRIVING ASSISTANCE WARNING SYSTEM - TESTING & TROUBLESHOOTING (HYBRID)SYMPTOM TROUBLESHOOTING INDEXROAD DEPARTURE MITIGATION SYMPTOM TROUBLESHOOTING INDEX

2020 Honda CR-V Hybrid EX

Road Departure Mitigation Symptom Troubleshooting Index

2020 Honda CR-V Hybrid EXSECTION Road Departure Mitigation Symptom Troubleshooting Index

Symptom	Diagnostic procedure	Also check for
RDM indicator (on the MID) does not go off, and no DTCs are stored	NOTE: If any of the CAN communication failure DTC is indicated in another system, troubleshoot the DTC first. Check for an open or a short in the F-CAN circuit; - Between the gauge control module and the CAN gateway (F-CAN D_H, F-CAN D_L) - Between the millimeter wave radar and the CAN gateway (F-CAN C_H, F-CAN C_L) Check the millimeter wave radar power circuit (IG1_OPTION). Check the millimeter wave radar ground circuit (GND). Do to the gauge control module self-diagnostic function .	Refer to the followings about the indicator operating condition; General troubleshooting information Refer to the followings about the circuit troubleshooting; Gauge control Module connector for inputs and outputs Millimeter wave radar connector for inputs and outputs Road Departure Mitigation Circuit Diagram Fuse to components index Ground to components index
RDM indicator (on the MID) does not come on	Symptom troubleshooting
RDM warning buzzer does not sound	Do the gauge control module self-diagnostic function .
RDM system warns when warning is unnecessary	Aim the multipurpose camera .	Weather condition Road condition Driving condition
RDM system does not warn when warning is necessary	Aim the multipurpose camera .	Weather condition Road condition Driving condition

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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.