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 Forte EXFACTORY OEM SERVICE PROCEDURE
Forward Collision-Avoidance Assist DTCS
FORWARD COLLISION-AVOIDANCE ASSIST DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION
| DTC | Description |
|---|---|
| C1101-17 | Battery Voltage High |
| C1102-16 | Battery Voltage Low |
| C1202-81 | Wheel Speed Sensor Front-LH Invalid/No Signal |
| C1205-81 | Wheel Speed Sensor Front-RH Invalid/No Signal |
| C1208-81 | Wheel Speed Sensor Rear-LH Invalid/No Signal |
| C1211-81 | Wheel Speed Sensor Rear-RH Invalid/No Signal |
| C1260-81 | Steering Angle Sensor Circuit - Signal |
| C1260-82 | Steering Angle Sensor Circuit - Signal |
| C1260-83 | Steering Angle Sensor Circuit - Signal |
| C1283-81 | Lateral G Sensor/Longitudinal G Sensor/Yaw Rate Sensor - Signal Error |
| C1283-82 | Lateral G Sensor/Longitudinal G Sensor/Yaw Rate Sensor - Signal Error |
| C1283-83 | Lateral G Sensor/Longitudinal G Sensor/Yaw Rate Sensor - Signal Error |
| C1360-81 | ESP Irreversible Error |
| C1604-04 | ECU Hardware Error |
| C160A-88 | Local CAN Bus Off |
| C160C-87 | Local CAN Time-Out |
| C1611-87 | CAN Time-Out EMS |
| C1612-87 | CAN Time-Out TCU |
| C1613-81 | CAN Signal Error EMS |
| C1613-82 | CAN Signal Error EMS |
| C1613-83 | CAN Signal Error EMS |
| C1616-88 | C-CAN Bus OFF |
| C1617-81 | EMS Invalid Engine Speed |
| C1620-78 | Alignment Failed |
| C1623-87 | CAN Time-Out Steering Angle Sensor |
| C1625-87 | CAN Time-Out ABS/ESP |
| C1628-87 | CAN Time-Out Cluster |
| C1629-82 | Cluster Invalid Counter |
| C1632-81 | Cluster Control Switch Fail |
| C1633-81 | Cluster Invalid Displayed Speed |
| C1635-82 | TCS Invalid Counter |
| C1635-83 | TCS Invalid Counter |
| C1638-81 | SCC Communication Error |
| C1642-81 | CAN Message Failure - Brake |
| C1646-81 | CAN Message Failure - TCU |
| C1646-82 | CAN Message Failure - TCU |
| C1646-83 | CAN Message Failure - TCU |
| C16B1-81 | AEB Error By LDWS (LKAS) Error |
| C16B1-82 | AEB Error By LDWS (LKAS) Error |
| C16B1-83 | AEB Error By LDWS (LKAS) Error |
| C16B2-82 | WHL_SPD Checksum/Alive Counter Error |
| C16B2-83 | WHL_SPD Checksum/Alive Counter Error |
| C16B3-82 | WHL_PUL Checksum/Alive Counter Error |
| C16B3-83 | WHL_PUL Checksum/Alive Counter Error |
| C16B8-81 | AEB Communication Error |
| C1702-55 | Variant Coding Error |
| C1741-81 | ESC - Not Available VSM (Check ESC) |
| C1742-81 | Variant Error - ESC (Check ESC) |
| C1743-81 | Software Mis - Match |
| C1744-81 | SCC Coding & AVN/Navi Option Mismatch |
| C1747-55 | Front Radar & Front View Camera Variant Coding Mismatch |
| C1804-87 | CAN Time-Out LKAS |
| C1805-81 | LKAS CAN Signal Error |
| C1805-82 | LKAS CAN Signal Error |
| C1805-83 | LKAS CAN Signal Error |
| C180B-87 | CAN Time-Out CGW1 |
| C1816-87 | CAN Time-Out SJB |
| C1817-82 | CAN Signal Error Gateway |
| C1817-83 | 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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