Problem Symptoms Table
If no DTCs are displayed during the DTC check but the problem still occurs, check the circuits for each problem symptom in the order given in the table below and proceed to the relevant troubleshooting information.
NOTE:
When replacing the brake actuator or sensor, turn the ignition switch off.
ANTI-LOCK BRAKE SYSTEM
| Symptom | Suspected Area | See |
|---|---|---|
| ABS does not operate | Check DTC reconfirming that normal code output. | Refer to DTC CHECK/CLEAR |
| IG power source circuit | Refer to DTC C1241/41: Low Battery Positive Voltage | |
| Front speed sensor circuit | Refer to DTC C0200/31: Right Front Wheel Speed Sensor Signal Malfunction; DTC C0205/32: Left Front Wheel Speed Sensor Signal Malfunction; DTC C1271/71: Low Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1272/72: Low Output Signal of Front Speed Sensor LH (Test Mode DTC) | |
| Rear speed sensor circuit | Refer to DTC C0210/33: Right Rear Wheel Speed Sensor Signal Malfunction; DTC C0215/34: Left Rear Wheel Speed Sensor Signal Malfunction; DTC C1273/73: Low Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1274/74: Low Output Signal of Rear Speed Sensor LH (Test Mode DTC) | |
| Check brake actuator with Techstream. If abnormal, check hydraulic circuit for leakage. | Refer to ON-VEHICLE INSPECTION | |
| If symptoms still occur even after above circuits in suspected areas inspected and proved to be normal, replace brake actuator. | Refer to REMOVAL | |
| ABS does not operate efficiently | Check DTC reconfirming that normal code output. | Refer to DTC CHECK/CLEAR |
| Front speed sensor circuit | Refer to DTC C0200/31: Right Front Wheel Speed Sensor Signal Malfunction; DTC C0205/32: Left Front Wheel Speed Sensor Signal Malfunction; DTC C1271/71: Low Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1272/72: Low Output Signal of Front Speed Sensor LH (Test Mode DTC) | |
| Rear speed sensor circuit | Refer to DTC C0210/33: Right Rear Wheel Speed Sensor Signal Malfunction; DTC C0215/34: Left Rear Wheel Speed Sensor Signal Malfunction; DTC C1273/73: Low Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1274/74: Low Output Signal of Rear Speed Sensor LH (Test Mode DTC) | |
| Stop light switch circuit | Refer to DTC C1249/49: Open in Stop Light Switch Circuit | |
| Check brake actuator with Techstream. If abnormal, check hydraulic circuit for leakage. | Refer to ON-VEHICLE INSPECTION | |
| If symptoms still occur even after above circuits in suspected areas inspected and proved to be normal, replace brake actuator. | Refer to REMOVAL | |
| ABS warning light abnormal (Remains on) | ABS warning light circuit | Refer to ABS Warning Light Remains ON |
| Brake actuator assembly (skid control ECU) | Refer to REMOVAL | |
| ABS warning light abnormal (Does not come on) | ABS warning light circuit | Refer to ABS Warning Light does not Come ON |
| Brake actuator assembly (skid control ECU) | Refer to REMOVAL | |
| BRAKE warning light abnormal (Remains on) | BRAKE warning light circuit | Refer to Brake Warning Light Remains ON |
| Brake actuator assembly (skid control ECU) | Refer to REMOVAL | |
| BRAKE warning light abnormal (Does not come on) | BRAKE warning light circuit | Refer to Brake Warning Light does not Come ON |
| Brake actuator assembly (skid control ECU) | Refer to REMOVAL | |
| DTC check cannot be performed | Check the DTC again and make sure that the normal system code is output. | Refer to DTC CHECK/CLEAR |
| TC and CG terminal circuit | Refer to TC and CG Terminal Circuit | |
| If symptoms still occur even after above circuits in suspected areas inspected and proved to be normal, replace brake actuator. | Refer to REMOVAL | |
| Speed sensor signal check cannot be performed | TC and CG terminal circuit | Refer to TC and CG Terminal Circuit |
| Brake actuator assembly (skid control ECU) | Refer to REMOVAL |