LANE-KEEPING ASSIST SYSTEM DIAGNOSTIC TROUBLE CODE CHART

Tech Tips

If a trouble code is output during the DTC check, inspect the trouble area listed for that code. For details of the code, refer to the "See page" below.

Lane-keeping Assist System
DTC Code Detection Item Trouble Area See page
C1A01 Driving Support ECU Driving support ECU

Click here

C1A02 Vehicle Information Not Obtained

- Driving support ECU

- Main body ECU (Instrument panel junction block assembly)

Click here

C1A05 Stop Light Switch Circuit

- Stop light switch circuit

- Stop light switch

- CAN communication system

- ECM

- Driving support ECU

Click here

C1A0C Object Recognition Camera Region Code Mismatch

- Lane recognition camera sensor assembly

- Main body ECU (Instrument panel junction block assembly)

- Driving support ECU

Click here

C1A20 Object Recognition ECU

- Lane recognition camera sensor assembly

- Driving support ECU

Click here

C1A22 Object Recognition Camera Incorrect Axial Gap

- Lane recognition camera sensor assembly

- Driving support ECU

Click here

C1A23 Object Recognition Camera Initialization Incomplete

- Lane recognition camera sensor assembly

- Driving support ECU

Click here

C1A45 Vehicle Speed Sensor

- Vehicle stability control system

- Driving support ECU

Click here

C1A46 Yaw Rate Sensor

- Vehicle stability control system

- Driving support ECU

Click here

C1A4A Skid Control Buzzer Circuit

- Skid control buzzer circuit

- Brake actuator assembly (Skid control ECU)

- Driving support ECU

Click here

C1A70 Power Steering Control System

- Power steering system

- Driving support ECU

Click here

C1A71 Power Steering Control Torque

- Power steering system

- Driving support ECU

Click here

U0122 Lost Communication with Vehicle Stability Control Module

- Brake actuator assembly (Skid control ECU)

- CAN communication system

- Driving support ECU

Click here

U0123 Lost Communication with Yaw Rate Sensor Module

- Yaw rate sensor

- CAN communication system

- Driving support ECU

Click here

U0131 Lost Communication with Power Steering Control Module

- Power steering ECU

- CAN communication system

- Driving support ECU

Click here

U1104 Lost Communication with Driving Support ECU

- Brake actuator assembly (Skid control ECU)

- Power steering ECU

- Lane recognition camera sensor assembly

- CAN communication system

- Driving support ECU

Click here

U1119 Lost Communication with Object Recognition ECU (CAN)

- Lane recognition camera sensor assembly

- CAN communication system

- Driving support ECU

Click here