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 MANUALSGENESIS2020G90 3.3T PREMIUM, AWDREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESBODY CONTROL MODULE DIAGNOSISDTC B163E-00: RAIN SENSOR MODULE LIN FAULTDTC INFORMATIONDTC DETECTING CONDITION

2020 Genesis G90 3.3T Premium, AWD

DTC Information: DTC Detecting Condition

2020 Genesis G90 3.3T Premium, AWDSECTION DTC Detecting Condition

Item	Conditions for setting DTC	Possible Cause
DTC Strategy	Check LIN communication	RSM* LIN line open/poor connection RSM LIN line short to battery RSM LIN line short to ground LIN communication line protocol error from electrical noise
Enable Conditions	IG key "ON"
Threshold Value	RSM*'s LIN data is not received
Diagnostic Time	Immediately
DTC Erasing	Erased DTC after solved problem

NOTE: RSM*: "RAIN SENSOR"
IBU*: "IBU CONTROL MODULE"

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.