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/AVOIDANCEBLIND SPOT DETECTION SYSTEM DIAGNOSIS
2020 Genesis G90 3.3T Premium, AWD
Blind Spot Detection System Diagnosis
2020 Genesis G90 3.3T Premium, AWDSECTION Blind Spot Detection System Diagnosis
- DTC Index
- DTC C1101-17: Battery Voltage High
- DTC C1102-16: Battery Voltage Low
- DTC C121A-08: Driver Side Indicator Circuit Failure
- DTC C121B-08: Driver Side Indicator Sig Fail (LIN Fail)
- DTC C121C-87: DDM Timeout
- DTC C121D-08: Assistant Side Indicator Circuit Failure
- DTC C121E-08: Assistant Side Indicator Signal Failure LIN Failure
- DTC C1283-81: Lateral G Sensor Longitudinal G Sensor Yaw Rate Sensor Signal Error
- DTC C1501-01: Switch Failure
- DTC C150A-14: Activation Switch Circuit Failure
- DTC C160A-88: BSD Local CAN Bus Off
- DTC C1612-87: CAN Time Out TCU
- DTC C1613-81: CAN Signal Error EMS
- DTC C1616-88: CAN Bus OFF C CAN
- DTC C1623-87: CAN Time Out Steering Angle Sensor
- DTC C1625-87: CAN Time Out ABS ESC ESP
- DTC C1628-87: CAN Time Out Cluster
- DTC C1633-81: CAN Message Failure CLU
- DTC C1646-81: CAN Message Failure - TCU
- DTC C1657-87: CAN Time Out ESC
- DTC C166A-87: CAN Time Out Lane Info
- DTC C1672-81: CAN Message Failure - SAS
- DTC C1687-87: CAN Time Out VSM2 MDPS
- DTC C1688-81: CAN Message Failure - MDPS
- DTC C1693-81: CAN Message Failure - ESC
- DTC C1702-55: Variant Coding Error
- DTC C170A-11: Activation Switch LED Circuit Short To Ground
- DTC C170B-12: Activation Switch LED Circuit Short To Battery Or Open
- DTC C170C-04: ECU Hardware Error REAR RIGHT
- DTC C170D-04: ECU Hardware Error REAR LEFT
- DTC C1743-42: Software Mismatch
- DTC C1816-87: CAN Time Out SJB
- DTC C1817-87: CAN Signal Error Gateway
- DTC C2702-54: Control Module Missing Calibration
- DTC C2703-54: Control Module Slave Missing Calibration
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.