Problem Symptoms Table

If there are no DTCs output 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 page. NOTICE:

When replacing the brake actuator assembly (skid control ECU), sensor, etc., turn the ignition switch off.

ANTI LOCK BRAKE SYSTEM

Symptom

Suspected area

See page

ABS does not operate

1. Check the DTC reconfirming that the normal system code is output.

BC-19

2. IG power source circuit

BC-56

3. Front speed sensor circuit

BC-26

4. Rear speed sensor circuit

BC-34

5. Check the brake actuator assembly with the intelligent tester. (Check brake actuator assembly operation using the active test function)

BC-245

6. If the symptoms still occur even after the above circuits in suspected areas have been inspected and proved to be normal, replace the brake actuator assembly (skid control ECU)

BC-246

ABS does not operate properly

1. Check the DTC reconfirming that the normal system code is output.

BC-19

2. Front speed sensor circuit

BC-26

3. Rear speed sensor circuit

BC-34

4. Stop light switch circuit

BC-60

5. Check the brake actuator assembly with the intelligent tester. (Check brake actuator assembly operation using the active test function)

BC-245

6. If the symptoms still occur even after the above circuits in suspected areas have been inspected and proved to be normal, replace the brake actuator asssembly (skid control ECU)

BC-246

ABS warning light malfunction (Remains on)

1. ABS warning light circuit

BC-67

2. Brake actuator assembly (skid control ECU)

BC-246

ABS warning light malfunction (does not come on)

1. ABS warning light circuit

BC-71

2. Brake actuator assembly (skid control ECU)

BC-246

Brake warning light malfunction (Remains on)

1. Brake warning light circuit

BC-73

2. Brake actuator assembly (skid control ECU)

BC-246

Brake warning light malfunction (Does not come on)

1. Brake warning light circuit

BC-79

2. Brake actuator assembly (skid control ECU)

BC-246

ABS sensor DTC check cannot be done

1. ABS warning light circuit (Remains on)

BC-67

2. ABS warning light circuit (Does not come on)

BC-71

3. TC and CG terminal circuit

BC-81

4. TS and CG terminal circuit

BC-86

5. When the above areas (1., 2. and 3.) are all normal but the problem still occurs, replace the brake actuator assembly (skid control ECU).

BC-246

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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