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 Rio LXFACTORY 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 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 Signal Error - Invalid |
| DTC C1260 | 82: Steering Angle Sensor Signal Error - Alive |
| DTC C1260 | 83: Steering Angle Sensor Signal Error - Checksum |
| DTC C1283 | 81: Lateral G Sensor/Longitudinal G Sensor/Yaw Rate Sensor - Signal Error |
| DTC C1283 | 82: Yaw Rate & Lateral G Sensor - Signal Error (Alive Counter) |
| DTC C1283 | 83: Yaw Rate & Lateral G Sensor - Signal Error (Checksum) |
| DTC C1604 | 04: ECU Hardware Error |
| DTC C1611 | 87: CAN Time-out EMS |
| DTC C1612 | 87: CAN Time-out TCU |
| DTC C1613 | 81: CAN Signal Error - ECM (Invalid) |
| DTC C1613 | 82: CAN Signal Error - ECM (AliveCounter) |
| DTC C1613 | 83: CAN Signal Error - ECM (Checksum) |
| DTC C1616 | 88: C-CAN Bus OFF |
| DTC C1617 | 81: EMS Invalid Engine Speed |
| DTC C1620 | 78: Alignment Failed |
| DTC C1623 | 87: CAN Time-out Steering Angle Sensor |
| DTC C1625 | 87: CAN Time-Out ABS/ESP |
| DTC C1635 | 82: TCS CAN Signal Error - AliveCounter |
| DTC C1635 | 83: Traction Control System(TCS) Invalid (Checksum) |
| DTC C1642 | 81: CAN Message Failure - Brake |
| DTC C1646 | 81: CAN Message Failure - TCM (Invalid) |
| DTC C1646 | 82: CAN Message Failure - TCM (AliveCounter) |
| DTC C1646 | 83: CAN Message Failure - TCM (Checksum) |
| DTC C16B2 | 82: CAN Timeout - Wheel Speed (ActiveCounter) |
| DTC C16B2 | 83: CAN Timeout - Wheel Speed (Checksum) |
| DTC C16B3 | 82: CAN Timeout - Wheel Pulsation (ActiveCounter) |
| DTC C16B3 | 83: CAN Timeout - Wheel Pulsation (Checksum) |
| DTC C16B8 | 81: AEB communication Error |
| DTC C1702 | 55: Variant Coding Error |
| DTC C1741 | 81: ESC-not available VSM (Check ESC) |
| DTC C1743 | 81: CAN Message - ESP (ESC) Specification Mismatch |
| DTC C180B | 87: CAN Time-Out CGW |
Factory Service Tools
Use the Manual With the Right Hardware
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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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