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 DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTDRIVERS ASSISTANCE SYSTEMS - ADASSCC/AEB DIAGNOSISDTC C1632-81: CLUSTER CONTROL SWITCH FAILWIRING INSPECTIONC-CAN COMMUNICATION LINE INSPECTION
2020 Genesis G90 3.3T Premium, AWD
C-CAN Communication Line Inspection
2020 Genesis G90 3.3T Premium, AWDSECTION C-CAN Communication Line Inspection
| Item | Normal Value | Prerequisite Condition | Probe (+) | Probe (-) |
|---|---|---|---|---|
| CAN communication line (open, short): resistance | Infinite ∞Ω |
|
FCA harness connector's C-CAN High terminal | Chassis ground |
| FCA harness connector's C-CAN Low terminal | Chassis ground | |||
| CAN communication line (open, short): voltage | Approx. below 5V |
|
FCA harness connector's C-CAN High terminal | Chassis ground |
| FCA harness connector's C-CAN Low terminal | Chassis ground | |||
| Open in CAN communication line: resistance | Approx. below 1Ω |
|
FCA harness connector's C-CAN High terminal | Cluster harness connector's C-CAN High terminal |
| FCA harness connector's C-CAN Low terminal | Cluster harness connector's C-CAN Low terminal |
- Is the result within specifications?
YES
- This can be an intermittent fault caused by poor contact in the sensor's and/or control module's connector. Or, control module's memory was not cleared after repair. Thoroughly check connectors for looseness, poor connection, ending, corrosion, contamination, deterioration, or damage.
- Repair or replace the relevant component(s) as necessary, and go to "VERIFICATION OF VEHICLE REPAIR ".
NO
- Repair the open/short in CAN communication lines and go to "VERIFICATION OF VEHICLE REPAIR ".
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.