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 | See page |
|---|---|---|
| C1203 | ECM Communication Circuit Malfunction | |
| C1241 | Low Power Supply Voltage Malfunction | |
| C1243 | Acceleration Sensor Stuck Malfunction | |
| C1245 | Acceleration Sensor Output Malfunction | |
| C1401 | Front Speed Sensor RH Malfunction | |
| C1402 | Front Speed Sensor LH Malfunction | |
| C1403 | Rear Speed Sensor RH Malfunction | |
| C1404 | Rear Speed Sensor LH Malfunction | |
| C1405 | Open or Short in Front Speed Sensor RH Circuit | |
| C1406 | Open or Short in Front Speed Sensor LH Circuit | |
| C1407 | Open or Short in Rear Speed Sensor RH Circuit | |
| C1408 | Open or Short in Rear Speed Sensor LH Circuit | |
| C1413 | Front Speed Sensor RH Output Malfunction | |
| C1414 | Front Speed Sensor LH Output Malfunction | |
| C1415 | Rear Speed Sensor RH Output Malfunction | |
| C1416 | Rear Speed Sensor LH Output Malfunction | |
| C1417 | High Power Supply Voltage Malfunction | |
| C1418 | Open or Short in Acceleration Sensor Circuit | |
| C1425 | Open in Stop Light Switch Circuit | |
| C1427 | Motor Malfunction | |
| C1428 | Motor Circuit Malfunction | |
| C1468 | SFR Solenoid Circuit | |
| C1469 | SFL Solenoid Circuit | |
| C146A | SRR Solenoid Circuit | |
| C146B | SRL Solenoid Circuit | |
| C146C | Open in ABS Motor Relay Circuit | |
| C146D | Short in ABS Motor Relay Circuit | |
| C146E | Open in ABS Solenoid Relay Circuit | |
| C146F | Short in ABS Solenoid Relay Circuit | |
| U0073 | Control Module Communication Bus OFF | |
| U0142 | Lost Communication with Main Body ECU |
| 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) | |
| C1279 | Acceleration Sensor Output Voltage Malfunction (Test Mode DTC) |