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 & EQUIPMENTCOLLISION/AVOIDANCELANE KEEPING ASSIST SYSTEM DIAGNOSIS
2020 Genesis G90 3.3T Premium, AWD
Lane Keeping Assist System Diagnosis
2020 Genesis G90 3.3T Premium, AWDSECTION Lane Keeping Assist System Diagnosis
- DTC Index
- DTC C1101-17: Battery Voltage High
- DTC C1102-16: Battery Voltage Low
- DTC C1532-11: LKAS Switch Stuck
- DTC C1532-12: LKAS Switch Failure (Short To Battery+)
- DTC C1532-86: LKAS Switch Failure
- DTC C1604-49: ECU Hardware Error
- DTC C1606-49: ECU Software Error
- DTC C160A-87: Local CAN Bus Off
- DTC C160C-87: Local CAN Time-Out
- DTC C1611-87: CAN Time-Out EMS
- DTC C1612-87: CAN Time-Out TCU
- DTC C1613-86: CAN Signal Error EMS
- DTC C1616-87: CAN Bus OFF (C-CAN)
- DTC C1623-85: CAN Time-Out Steering Angle Sensor
- DTC C1623-87: SAS1 Message Missing
- DTC C1625-85: CAN Time-Out ABS/ESP
- DTC C1625-87: ESP2 Message Missing
- DTC C1628-87: CAN Time-Out Cluster
- DTC C1642-86: CAN Message Failure - Brake
- DTC C1646-86: CAN Message Failure - TCU
- DTC C1656-86: CAN Signal Error Cluster
- DTC C1667-87: CAN Timeout Of SCC
- DTC C1672-86: Steering Angle Signal Invalid
- DTC C1687-85: CAN Time-Out VSM2 (MDPS)
- DTC C1687-87: MDPS3 Message Missing
- DTC C1688-86: TOI Signal Mismatch
- DTC C1702-46: Variant Coding Error
- DTC C1746-86: HDA Coding And Navi Mismatch
- DTC C1812-87: CAN Time-Out Gateway
- DTC C1816-86: CAN Time-Out SJB
- DTC C1831-86: Invalid Signal Of NAVI
- DTC C1862-86: Invalid Signal Of SCC
- DTC C1863-87: CAN Timeout Of NAVI For HDA
- DTC C2223-86: MDPS Steering Control Failure
- DTC C2721-46: System Calibration Required
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.