Note
Turn the ignition switch off before removing parts.
Tech Tips
If no abnormality is found when inspecting parts, inspect the skid control ECU and ground points for poor contact.
If a trouble code is displayed during the DTC check, check the circuit indicated by the DTC. For details of each code, refer to the page for the respective "DTC Code" in the DTC chart.
When 2 or more DTCs are detected, perform circuit inspection one by one until the problem is identified.
For DTCs output by the warning light or indicator light, refer to the DTC charts in DTC Check/Clear.
Inspect the fuse and relay before investigating the trouble areas as shown in the table below.
| DTC Code | Detection Item | Trouble Area | See page |
|---|---|---|---|
| C1203 | ECM Communication Circuit Malfunction | - ECM - Main body ECU (Multiplex network body ECU) - Skid control ECU (Brake actuator assembly) |
|
| C1210 | Zero Point Calibration of Yaw Rate Sensor Undone | - Yaw rate sensor (Airbag sensor assembly) - Skid control ECU (Brake actuator assembly) |
|
| C1225 | SM Solenoid Circuit | - Brake actuator assembly | |
| C1232 | Acceleration Sensor Stuck Malfunction | - Yaw rate sensor (Airbag sensor assembly) - Yaw rate sensor (Airbag sensor assembly) circuit |
|
| C1241 | Low Power Supply Voltage Malfunction | - ECU-IG NO. 2 fuse - Battery - Charging system - Power source circuit - Internal power supply circuit of the skid control ECU |
|
| C1243 | Acceleration Sensor Stuck Malfunction | - Yaw rate sensor (Airbag sensor assembly) - Yaw rate sensor (Airbag sensor assembly) circuit |
|
| C1245 | Acceleration Sensor Output Malfunction | - Yaw rate sensor (Airbag sensor assembly) - Yaw rate sensor (Airbag sensor assembly) circuit - Sensor installation |
|
| C1290 | Steering Angle Sensor Zero Point Malfunction | - Yaw rate and deceleration sensor zero point calibration incomplete - Poor adjustment of the centered position of the steering wheel - Poor adjustment of front wheel adjustment |
|
| C1336 | Zero Point Calibration of Acceleration Sensor Undone | - Yaw rate sensor (Airbag sensor assembly) - Skid control ECU (Brake actuator assembly) |
|
| C1361 | Short in ABS Motor Fail Safe Relay Circuit | - ABS NO. 1 fuse - ABS motor fail safe relay circuit - Brake actuator assembly (ABS motor fail safe relay) |
|
| C1381 | Acceleration Sensor Power Supply Voltage Malfunction | - Yaw rate sensor (Airbag sensor assembly) - Yaw rate sensor (Airbag sensor assembly) power source circuit |
|
| C1401 | Front Speed Sensor RH Malfunction | - Front speed sensor RH - Speed sensor rotor - Sensor installation |
|
| C1402 | Front Speed Sensor LH Malfunction | - Front speed sensor LH - Speed sensor rotor - Sensor installation |
|
| C1403 | Rear Speed Sensor RH Malfunction | - Rear speed sensor RH - Speed sensor rotor |
|
| C1404 | Rear Speed Sensor LH Malfunction | - Rear speed sensor LH - Speed sensor rotor |
|
| C1405 | Open or Short in Front Speed Sensor RH Circuit | - Front speed sensor RH - Speed sensor circuit - Skid control ECU (Brake actuator assembly) |
|
| C1406 | Open or Short in Front Speed Sensor LH Circuit | - Front speed sensor LH - Speed sensor circuit - Skid control ECU (Brake actuator assembly) |
|
| C1407 | Open or Short in Rear Speed Sensor RH Circuit | - Rear speed sensor RH - Skid control sensor wire RH - Speed sensor circuit - Skid control ECU (Brake actuator assembly) |
|
| C1408 | Open or Short in Rear Speed Sensor LH Circuit | - Rear speed sensor LH - Skid control sensor wire LH - Speed sensor circuit - Skid control ECU (Brake actuator assembly) |
|
| C1413 | Front Speed Sensor RH Output Malfunction | - Front speed sensor RH - Speed sensor circuit - Speed sensor rotor - Skid control ECU (Brake actuator assembly) |
|
| C1414 | Front Speed Sensor LH Output Malfunction | - Front speed sensor LH - Speed sensor circuit - Speed sensor rotor - Skid control ECU (Brake actuator assembly) |
|
| C1415 | Rear Speed Sensor RH Output Malfunction | - Rear speed sensor RH - Speed sensor circuit - Speed sensor rotor - Skid control ECU (Brake actuator assembly) |
|
| C1416 | Rear Speed Sensor LH Output Malfunction | - Rear speed sensor LH - Speed sensor circuit - Speed sensor rotor - Skid control ECU (Brake actuator assembly) |
|
| C1417 | High Power Supply Voltage Malfunction | - Battery - Charging system - Power source circuit - Internal power supply circuit of the skid control ECU |
|
| C1419 | Acceleration Sensor Internal Circuit | - Yaw rate sensor (Airbag sensor assembly) | |
| C1421 | Open or Short in Master Cylinder Pressure Sensor | - Brake actuator assembly (Master cylinder pressure sensor) | |
| C1422 | Master Cylinder Pressure Sensor Zero Point High Malfunction | - Stop light switch - Stop light switch circuit - Master cylinder pressure sensor circuit - Brake actuator assembly (Master cylinder pressure sensor) |
|
| C1423 | Master Cylinder Pressure Sensor Zero Point Low Malfunction | - Brake actuator assembly (Master cylinder pressure sensor) | |
| C1424 | Master Cylinder Pressure Sensor Output Malfunction | - Brake actuator assembly (Master cylinder pressure sensor) | |
| C1425 | Open in Stop Light Switch Circuit | - Stop light switch circuit - Skid control ECU (Brake actuator assembly) |
|
| C1427 | Motor Malfunction | - Brake actuator assembly (Ground circuit) - Brake actuator assembly (Motor circuit) |
|
| C1428 | Motor Circuit Malfunction | - Brake actuator assembly (Motor circuit) | |
| C1432 | Steering Angle Sensor Power Source Voltage Malfunction | - Steering angle sensor power supply - Steering angle sensor (Spiral cable sub-assembly) |
|
| C1433 | Steering Angle Sensor Internal Circuit | - Steering angle sensor (Spiral cable sub-assembly) | |
| C1434 | Steering Angle Sensor Output Malfunction | - Steering angle sensor power supply - Steering angle sensor (Spiral cable sub-assembly) - Skid control ECU (Brake actuator assembly) |
|
| C1435 | Yaw Rate Sensor Internal Circuit | - Yaw rate sensor (Airbag sensor assembly) | |
| C1436 | Yaw Rate Sensor Malfunction | - Yaw rate sensor (Airbag sensor assembly) | |
| C1437 | Lost Communication with ECM | - CAN communication system (Skid control ECU to ECM) - Skid control ECU (Brake actuator assembly) |
|
| C1439 | Steering Angle Sensor Initialization Incomplete | - Steering angle sensor (Spiral cable sub-assembly) - Yaw rate sensor (Airbag sensor assembly) - Master cylinder solenoid (Skid control ECU) |
|
| C1440 | Steering Angle Sensor Unusual Bank Angle Detected | - Yaw rate sensor (Airbag sensor assembly) | |
| C1442 | Invalid Data Received from Acceleration Sensor | - Yaw rate sensor (Airbag sensor assembly) | |
| C1443 | Invalid Data Received from Yaw Rate Sensor | - Yaw rate sensor (Airbag sensor assembly) | |
| C1445 | Vehicle Driven with Steering Angle Sensor not Initialized | - Steering angle sensor (Spiral cable sub-assembly) - Yaw rate sensor (Airbag sensor assembly) - Master cylinder solenoid (Skid control ECU) |
|
| C1468 | SFR Solenoid Circuit | - Brake actuator assembly | |
| C1469 | SFL Solenoid Circuit | - Brake actuator assembly | |
| C146A | SRR Solenoid Circuit | - Brake actuator assembly | |
| C146B | SRL Solenoid Circuit | - Brake actuator assembly | |
| C146C | Open in ABS Motor Relay Circuit | - ABS NO. 1 fuse - ABS motor relay circuit - Brake actuator assembly (ABS motor relay) |
|
| C146D | Short in ABS Motor Relay Circuit | - ABS motor relay circuit - Brake actuator assembly (ABS motor relay) |
|
| C146E | Open in ABS Solenoid Relay Circuit | - ABS NO. 2 fuse - ABS solenoid relay circuit - Brake actuator assembly (ABS solenoid relay) |
|
| C146F | Short in ABS Solenoid Relay Circuit | - ABS solenoid relay circuit - Brake actuator assembly (ABS solenoid relay) |
|
| U0073 | Control Module Communication Bus OFF | - CAN communication system | |
| U0100 | Lost Communication with ECM | - CAN communication system | |
| U0124 | Lost Communication with Lateral Acceleration Sensor Module | - CAN communication system | |
| U0126 | Lost Communication with Steering Angle Sensor Module | - CAN communication system | |
| U0142 | Lost Communication with Main Body ECU | - CAN communication system - Main body ECU |
| DTC Code | Detection Item | Trouble Area | See page |
|---|---|---|---|
| C1271 | Low Output Signal of Front Speed Sensor RH (Test Mode DTC) | - Front speed sensor RH - Speed sensor rotor - Sensor installation |
|
| C1272 | Low Output Signal of Front Speed Sensor LH (Test Mode DTC) | - Front speed sensor LH - Speed sensor rotor - Sensor installation |
|
| C1273 | Low Output Signal of Rear Speed Sensor RH (Test Mode DTC) | - Rear speed sensor RH - Speed sensor rotor |
|
| C1274 | Low Output Signal of Rear Speed Sensor LH (Test Mode DTC) | - Rear speed sensor LH - Speed sensor rotor |
|
| C1275 | Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC) | - Front speed sensor RH - Speed sensor rotor |
|
| C1276 | Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC) | - Front speed sensor LH - Speed sensor rotor |
|
| C1277 | Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC) | - Rear speed sensor RH - Speed sensor rotor |
|
| C1278 | Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC) | - Rear speed sensor LH - Speed sensor rotor |
|
| C1279 | Acceleration Sensor Output Voltage Malfunction (Test Mode DTC) | - Yaw rate sensor (Airbag sensor assembly) - Sensor installation |
|
| C1281 | Master Cylinder Pressure Sensor Output Malfunction (Test Mode DTC) | - Brake actuator assembly (Master cylinder pressure sensor) | |
| C1473 | Yaw Rate Sensor (Test Mode DTC) | - Yaw rate sensor (Airbag sensor assembly) |