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.
2021 Kia K5 EXFACTORY OEM SERVICE PROCEDURE
Front Radar System DTCS
FRONT RADAR SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| DTC C1101 | 17: Battery Voltage High |
| DTC C1102 | 16: Battery Voltage Low |
| DTC C1202 | 81: Wheel Speed Sensor Front-LH Invalid/no Signal |
| DTC C1205 | 81: Wheel Speed Sensor Front-RH Invalid/no Signal |
| DTC C1208 | 81: Wheel Speed Sensor Rear-LH Invalid/no Signal |
| DTC C1211 | 81: Wheel Speed Sensor Rear-RH Invalid/no Signal |
| DTC C1260 | 81: Steering Angle Sensor Circuit - Signal |
| DTC C1260 | 82: Steering Angle Sensor Circuit - signal |
| DTC C1260 | 83: Steering Angle Sensor Circuit - signal |
| DTC C1283 | 81: Lateral G Sensor/Longitudinal G Sensor/Yaw Rate Sensor - Signal Error |
| DTC C1360 | 81: ESP Irreversible Error |
| DTC C1604 | 04: ECU Hardware Error |
| DTC C160A | 88: 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 | 81: CAN Signal Error EMS |
| DTC C1613 | 82: CAN Signal Error EMS |
| DTC C1613 | 83: CAN Signal Error EMS |
| DTC C1616 | 88: C-CAN Bus OFF |
| DTC C1620 | 78: Alignment Failed |
| DTC C1623 | 87: CAN Time-out Steering Angle Sensor |
| DTC C1625 | 87: CAN Time-Out ABS/ESP |
| DTC C1628 | 87: CAN Time-out Cluster |
| DTC C1629 | 82: Cluster Invalid Counter |
| DTC C1632 | 81: Cluster Control Switch Fail |
| DTC C1633 | 81: Cluster Invalid Displayed Speed |
| DTC C1638 | 81: ACC/SCC communication error |
| DTC C1642 | 81: CAN Message Failure - Brake |
| DTC C1642 | 82: CAN Message Failure - Brake |
| DTC C1642 | 83: CAN Message Failure - Brake |
| DTC C1646 | 81: CAN Message Failure - TCU |
| DTC C16B8 | 81: AEB Communication Error |
| DTC C1702 | 55: Variant Coding Error |
| DTC C1741 | 81: ESC-not available VSM (Check ESC) |
| DTC C1742 | 81: Variant Error - ESC (Check ESC) |
| DTC C1744 | 55: SCC Coding & AVN/Navi Option Mismatch |
| DTC C1747 | 55: Front Radar & Front view Camera Variant Coding Mismatch |
| DTC C1804 | 87: CAN time-out LKAS |
| DTC C1805 | 81: LKAS CAN Signal Error |
| DTC C1805 | 82: LKAS CAN Signal Error |
| DTC C1805 | 83: LKAS CAN Signal Error |
| DTC C1812 | 87: CAN Time-out Gateway |
| DTC C1817 | 82: CAN Signal Error Gateway |
Factory Service Tools
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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.
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