Problem Symptoms Table
If a normal code is 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 skid control ECU, sensor, etc., turn the ignition switch to OFF.
PROBLEM SYMPTOMS TABLE
| Symptom | Suspected Area | See |
|---|---|---|
| ABS does not operate | 1. Check the DTC reconfirming that the normal code is output. | PRE-CHECK |
| 2. IG power source circuit | DTC C1241/41 LOW BATTERY POSITIVE VOLTAGE | |
| 3. Speed sensor circuit | DTC C0200/31 RIGHT FRONT SPEED SENSOR; DTC C0205/32 LEFT FRONT SPEED SENSOR; DTC C1330/35 FOREIGN MATTER IS ATTACHED ON TIP OF RIGHT FRONT WHEEL; DTC C1331/36 FOREIGN MATTER IS ATTACHED ON TIP ON LEFT FRONT SENSOR | |
| 4. Check the brake actuator with the hand-held tester. If there is a malfunction, check the hydraulic circuit for leakage. |
DTC C0210/33 RIGHT REAR SPEED SENSOR; DTC C0215/34 LEFT REAR SPEED SENSOR; DTC C1332/38 FOREIGN MATTER IS ATTACHED ON TIP OF RIGHT REAR SENSOR; DTC C1333/39 FOREIGN MATTER IS ATTACHED ON TIP OF LEFT REAR SENSOR | |
| 5. When the above areas (1. to 4.) are all normal but the problem still occurs, replace the skid control ECU. | ||
| ABS does not operate properly | 1. Check the DTC reconfirming that the normal code is output. | PRE-CHECK |
| 2. Speed sensor circuit | DTC C0200/31 RIGHT FRONT SPEED SENSOR; DTC C0205/32 LEFT FRONT SPEED SENSOR; DTC C1330/35 FOREIGN MATTER IS ATTACHED ON TIP OF RIGHT FRONT WHEEL; DTC C1331/36 FOREIGN MATTER IS ATTACHED ON TIP ON LEFT FRONT SENSOR | |
| 3. Stop light switch circuit | DTC C0210/33 RIGHT REAR SPEED SENSOR; DTC C0215/34 LEFT REAR SPEED SENSOR; DTC C1332/38 FOREIGN MATTER IS ATTACHED ON TIP OF RIGHT REAR SENSOR; DTC C1333/39 FOREIGN MATTER IS ATTACHED ON TIP OF LEFT REAR SENSOR | |
| 4. Check the brake actuator with the hand-held tester. If there is a malfunction, check the hydraulic circuit for leakage. |
DTC C1249/58 STOP LIGHT SWITCH CIRCUIT | |
| 5. When the above areas (1. to 4.) are all normal but the problem still occurs, replace the skid control ECU. | BRAKE ACTUATOR ASSY (W/O VSC) | |
| ABS warning light malfunction (Remains ON) | 1. ABS warning light circuit | ABS WARNING LIGHT CIRCUIT (REMAINS ON) |
| 2. Skid control ECU | - | |
| ABS warning light malfunction (Does not light up) | 1. ABS warning light circuit | ABS WARNING LIGHT CIRCUIT (DOES NOT LIGHT UP) |
| 2. Skid control ECU | - | |
| DTC check cannot be performed | 1. ABS warning light circuit | ABS WARNING LIGHT CIRCUIT (REMAINS ON) |
| 2. TC terminal circuit | ABS WARNING LIGHT CIRCUIT (DOES NOT LIGHT UP) | |
| 3. When the above areas (1. and 2.) are all normal but the problem still occurs, replace the skid control ECU. | TC TERMINAL CIRCUIT | |
| Speed sensor signal check cannot be performed | 1. Harness and/or connector between skid control ECU and DLC3. | - |
| 2. Skid control ECU | - |