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.
Inspect the fuses and relays before inspecting the trouble areas shown in the following table.
| DTC Code | Detection Item | See page |
|---|---|---|
| C1201 | Engine Control System Malfunction | |
| C1225 | SA1 Solenoid Circuit | |
| C1226 | SA2 Solenoid Circuit | |
| C1227 | SA3 Solenoid Circuit | |
| C1228 | STR Solenoid Circuit | |
| C1231 | Steering Angle Sensor | |
| C1234 | Yaw Rate Sensor | |
| C1237 | Speed Sensor Rotor Faulty | |
| C1241 | Low or High Power Supply Voltage | |
| C1246*2 | Master Cylinder Pressure Sensor Malfunction | |
| C1249 | Open in Stop Light Switch Circuit | |
| C1288 | Error in Matching of ECUs | |
| C1294 | ECT System Malfunction | |
| 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 | |
| C1419 | Acceleration Sensor Internal Circuit | |
| C1464*1 | Front Speed Sensor RH | |
| C1465*1 | Front Speed Sensor LH | |
| C1466*1 | Rear Speed Sensor RH | |
| C1467*1 | Rear Speed Sensor LH | |
| C1468 | SFR Solenoid Circuit | |
| C1469 | SFL Solenoid Circuit | |
| C146A | SRR Solenoid Circuit | |
| C146B | SRL Solenoid Circuit | |
| C146C*1 | Open in ABS Motor Relay Circuit | |
| C146E | Open in ABS Solenoid Relay Circuit | |
| C1472 | Acceleration Sensor | |
| C1474 | Forward and Rearward G Sensor | |
| U0073 | Control Module Communication Bus "A" Off | |
| U0100 | Lost Communication with ECM / PCM "A" | |
| U0101 | Lost Communication with TCM | |
| U0126 | Lost Communication with Steering Angle Sensor Module |
*1, *2:
Even after the trouble areas are repaired, the ABS warning light will not go off unless the following operations are performed:
*1:
Drive the vehicle at 20 km/h (12 mph) for 30 seconds or more and check that the ABS warning light goes off.
Clear the DTC.
*2:
Keep the vehicle stationary for 5 seconds or more and depress the brake pedal lightly 2 or 3 times.
Drive the vehicle at a vehicle speed of 50 km/h (31 mph) and keep depressing the brake pedal strongly for approximately 3 seconds.
Repeat the above operation 3 times or more and check that the ABS warning light goes off.
Clear the DTC.
| 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) |