Note
Turn the ignition switch off before removing any parts.
Tech Tips
If no malfunction is found when inspecting parts, inspect the skid control ECU and ground points for poor connections.
If a trouble code is displayed during the DTC check, inspect the trouble areas listed for that code. For details, refer to the "See page" reference for the DTC.
When 2 or more DTCs are detected, perform diagnosis for each DTC, one by one until the problem is identified.
If DTCs were checked using the warning light or indicator light, refer to the tables in DTC Check/Clear to cross-reference them to the 5-digit DTCs shown in the following tables.
| DTC Code | Detection Item | See page |
|---|---|---|
| C1225 | SM Solenoid Circuit | |
| C1226 | SA2 Solenoid Circuit | |
| C1227 | SA3 Solenoid Circuit | |
| C1228 | STR Solenoid Circuit | |
| C1237 | Speed Sensor Rotor Faulty | |
| C1241 | Low Power Supply Voltage Malfunction | |
| C1246 | Master Cylinder Pressure Sensor Malfunction | |
| C1249 | Open in Stop Light Switch Circuit | |
| C1300 | Skid Control ECU Malfunction | |
| C1330 | Open in Front Speed Sensor RH | |
| C1331 | Open in Front Speed Sensor LH | |
| C1332 | Open in Rear Speed Sensor RH | |
| C1333 | Open in Rear Speed Sensor LH | |
| C1417 | High Power Supply Voltage Malfunction | |
| C1425 | Open in Stop Light Switch Circuit | |
| C1426 | Stop Light Switch OFF Stuck Malfunction | |
| C1428 | Motor Circuit Malfunction | |
| C1429 | Open or Short in Brake Pedal Load Sensing Switch | |
| C1430 | Brake Pedal Load Sensing Switch OFF Stuck Malfunction | |
| C1431 | Brake Pedal Load Sensing Switch ON Stuck Malfunction | |
| C1464* | Front Speed Sensor RH | |
| C1465* | Front Speed Sensor LH | |
| C1466* | Rear Speed Sensor RH | |
| C1467* | Rear Speed Sensor LH | |
| C1468 | SFR Solenoid Circuit | |
| C1469 | SFL Solenoid Circuit | |
| C146A | SRR Solenoid Circuit | |
| C146B | SRL Solenoid Circuit | |
| C146C | Open in ABS Motor Relay Circuit | |
| C146E | Open in ABS Solenoid Relay Circuit | |
| U0073 | Control Module Communication Bus OFF |
*: Even after the trouble areas are repaired, the ABS warning light will not go off unless the following operations are performed:
Drive the vehicle at 54 km/h (34 mph) for 3 seconds or more and check that the ABS warning light goes off.
Clear the DTCs.
| DTC Code | Detection Item | See page |
|---|---|---|
| C1201 | Engine Control System Malfunction | |
| C1224 | NE Signal | |
| C1234 | Yaw Rate Sensor | |
| C1288 | Error in Matching of ECUs | |
| C1381 | Acceleration Sensor Power Supply Voltage Malfunction | |
| C1419 | Acceleration Sensor Internal Circuit | |
| C1420 | Acceleration Sensor Malfunction | |
| C1432 | Steering Angle Sensor Power Source Voltage Malfunction | |
| C1433 | Steering Angle Sensor Internal Circuit | |
| C1434 | Steering Angle Sensor Output Malfunction | |
| C1435 | Yaw Rate Sensor Internal Circuit | |
| C1436 | Yaw Rate Sensor Malfunction | |
| C1439 | Steering Angle Sensor Initialization Incomplete | |
| C1445 | Vehicle Driven with Steering Angle Sensor not Initialized | |
| C1472 | Acceleration Sensor | |
| U0100 | Lost Communication with ECM / PCM | |
| U0123 | Lost Communication with Yaw Rate Sensor Module | |
| U0126 | Lost Communication with Steering Angle Sensor Module |
| DTC Code | Detection Item | See page |
|---|---|---|
| C1271 | Low Output Signal of Front Speed Sensor RH (Test Mode DTC) | |
| C1272 | Low Output Signal of Front Speed Sensor LH (Test Mode DTC) | |
| C1273 | Low Output Signal of Rear Speed Sensor RH (Test Mode DTC) | |
| C1274 | Low Output Signal of Rear Speed Sensor LH (Test Mode DTC) | |
| C1275 | Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC) | |
| C1276 | Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC) | |
| C1277 | Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC) | |
| C1278 | Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC) | |
| C1281 | Master Cylinder Pressure Sensor Output Malfunction (Test Mode DTC) |