Problem Symptoms Table
Vehicle Stability Control System:
PROBLEM SYMPTOMS CHART
| Symptom | Suspected Area | See |
|---|---|---|
| ABS, BA and EBD do not operate | 1. Check the DTC again and make sure that the normal code is output. | DTC CHECK / CLEAR |
| 2. IG power source circuit and ground circuit. | DTC C1241/41 LOW BATTERY POSITIVE VOLTAGE | |
| 3. Speed sensor circuit (Front) | DTC C0200/31 RIGHT FRONT WHEEL SPEED SENSOR SIGNAL; DTC C0205/32 FRONT SPEED SENSOR LH CIRCUIT; DTC C1235/35 FOREIGN OBJECT IS ATTACHED ON TIP OF FRONT SPEED SENSOR RH; DTC C1236/36 FOREIGN OBJECT IS ATTACHED ON TIP OF FRONT SPEED SENSOR LH | |
| 4. Speed sensor circuit (Rear) | DTC C0210/33 RIGHT REAR WHEEL SPEED SENSOR SIGNAL; DTC C0215/34 REAR SPEED SENSOR LH CIRCUIT; DTC C1238/38 FOREIGN OBJECT IS ATTACHED ON TIP OF REAR SPEED SENSOR RH; DTC C1239/39 FOREIGN OBJECT IS ATTACHED ON TIP OF REAR SPEED SENSOR LH | |
| 5. Check the brake actuator assembly with Techstream. | ON-VEHICLE INSPECTION | |
| 6. If the symptoms still occur even after the above circuits in suspected areas are inspected and proved to be normal, replace the brake actuator assembly (skid control ECU). | REMOVAL | |
| ABS, BA and EBD do not operate efficiently | 1. Check the DTC again and make sure that the normal code is output. | DTC CHECK / CLEAR |
| 2. Speed sensor circuit (Front) | DTC C0200/31 RIGHT FRONT WHEEL SPEED SENSOR SIGNAL; DTC C0205/32 FRONT SPEED SENSOR LH CIRCUIT; DTC C1235/35 FOREIGN OBJECT IS ATTACHED ON TIP OF FRONT SPEED SENSOR RH; DTC C1236/36 FOREIGN OBJECT IS ATTACHED ON TIP OF FRONT SPEED SENSOR LH | |
| 3. Speed sensor circuit (Rear) | DTC C0210/33 RIGHT REAR WHEEL SPEED SENSOR SIGNAL; DTC C0215/34 REAR SPEED SENSOR LH CIRCUIT; DTC C1238/38 FOREIGN OBJECT IS ATTACHED ON TIP OF REAR SPEED SENSOR RH; DTC C1239/39 FOREIGN OBJECT IS ATTACHED ON TIP OF REAR SPEED SENSOR LH | |
| 4. Stop light switch circuit | DTC C1249/49 OPEN IN STOP LIGHT SWITCH CIRCUIT | |
| 5. Check the brake actuator assembly with Techstream. | ON-VEHICLE INSPECTION | |
| 6. If the symptoms still occur even after the above circuits in suspected areas are inspected and proved to be normal, replace the brake actuator assembly (skid control ECU). | REMOVAL | |
| ABS warning light abnormal (Remains on) | 1. ABS warning light circuit | ABS WARNING LIGHT REMAINS ON |
| 2. Brake actuator assembly (Skid control ECU) | BRAKE ACTUATOR (W/ VSC) | |
| ABS warning light abnormal (Does not come on) | 1. ABS warning light circuit | ABS WARNING LIGHT DOES NOT COME ON |
| 2. Brake actuator assembly (Skid control ECU) | BRAKE ACTUATOR (W/ VSC) | |
| BRAKE warning light abnormal | 1. BRAKE warning light circuit | BRAKE WARNING LIGHT REMAINS ON |
| 2. Brake actuator assembly (Skid control ECU) | BRAKE ACTUATOR (W/ VSC) | |
| DTC of ABS check cannot be done | 1. Check the DTC again and make sure that the normal code is output. | DTC CHECK / CLEAR |
| 2. TC and CG terminal circuit | TC AND CG TERMINAL CIRCUIT | |
| 3. If the symptoms still occur even after the above circuits in suspected areas are inspected and proved to be normal, replace the brake actuator assembly (skid control ECU). | REMOVAL | |
| Sensor signal check cannot be done | 1. TS and CG terminal circuit | TS AND CG TERMINAL CIRCUIT |
| 2. Brake actuator assembly (Skid control ECU) | BRAKE ACTUATOR (W/ VSC) | |
| VSC and/or TRAC does not operate | 1. Check the DTC again and make sure that the normal code is output. | DTC CHECK / CLEAR |
| 2. IG power source circuit and ground circuit. | DTC C1241/41 LOW BATTERY POSITIVE VOLTAGE | |
| 3. Check the hydraulic circuit for leakage. | - | |
| 4. Speed sensor circuit (Front) | DTC C0200/31 RIGHT FRONT WHEEL SPEED SENSOR SIGNAL; DTC C0205/32 FRONT SPEED SENSOR LH CIRCUIT; DTC C1235/35 FOREIGN OBJECT IS ATTACHED ON TIP OF FRONT SPEED SENSOR RH; DTC C1236/36 FOREIGN OBJECT IS ATTACHED ON TIP OF FRONT SPEED SENSOR LH | |
| 5. Speed sensor circuit (Rear) | DTC C0210/33 RIGHT REAR WHEEL SPEED SENSOR SIGNAL; DTC C0215/34 REAR SPEED SENSOR LH CIRCUIT; DTC C1238/38 FOREIGN OBJECT IS ATTACHED ON TIP OF REAR SPEED SENSOR RH; DTC C1239/39 FOREIGN OBJECT IS ATTACHED ON TIP OF REAR SPEED SENSOR LH | |
| 6. Deceleration sensor circuit (Calibration) | DTC C1210/36 ZERO POINT CALIBRATION OF YAW RATE SENSOR UNDONE; DTC C1336/39 ZERO POINT CALIBRATION OF ACCELERATION SENSOR UNDONE | |
| 7. Deceleration sensor circuit (Malfunction) | DTC C1232/32 STUCK IN DECELERATION SENSOR; DTC C1234/34 YAW RATE SENSOR MALFUNCTION; DTC C1243/43 ACCELERATION SENSOR STUCK MALFUNCTION; DTC C1244/44 OPEN OR SHORT IN DECELERATION SENSOR CIRCUIT; DTC C1245/45 ACCELERATION SENSOR OUTPUT MALFUNCTION; DTC C1381/97 YAW RATE AND / OR ACCELERATION SENSOR POWER SUPPLY VOLTAGE MALFUNCTION | |
| 8. Yaw rate sensor circuit | DTC C1232/32 STUCK IN DECELERATION SENSOR; DTC C1234/34 YAW RATE SENSOR MALFUNCTION; DTC C1243/43 ACCELERATION SENSOR STUCK MALFUNCTION; DTC C1244/44 OPEN OR SHORT IN DECELERATION SENSOR CIRCUIT; DTC C1245/45 ACCELERATION SENSOR OUTPUT MALFUNCTION; DTC C1381/97 YAW RATE AND / OR ACCELERATION SENSOR POWER SUPPLY VOLTAGE MALFUNCTION | |
| 9. Steering sensor circuit | DTC C1231/31 STEERING ANGLE SENSOR CIRCUIT MALFUNCTION | |
| 10. If the symptoms still occur even after the above circuits in suspected areas are inspected and proved to be normal, replace the brake actuator assembly (skid control ECU). | REMOVAL | |
| SLIP indicator light abnormal (Remains on) | 1. SLIP indicator light circuit | SLIP INDICATOR LIGHT REMAINS ON |
| 2. Brake actuator assembly (Skid control ECU) | BRAKE ACTUATOR (W/ VSC) | |
| SLIP indicator light abnormal (Does not come on) | 1. SLIP indicator light circuit | SLIP INDICATOR LIGHT DOES NOT COME ON |
| 2. Brake actuator assembly (Skid control ECU) | BRAKE ACTUATOR (W/ VSC) | |
| TRAC OFF indicator light abnormal (Remains on) | 1. TRAC OFF indicator light circuit | TRAC OFF INDICATOR LIGHT REMAINS ON |
| 2. Brake actuator assembly (Skid control ECU) | BRAKE ACTUATOR (W/ VSC) | |
| TRAC OFF indicator light abnormal (Does not come on) | 1. TRAC OFF indicator light circuit | TRAC OFF INDICATOR LIGHT DOES NOT COME ON |
| 2. Brake actuator assembly (Skid control ECU) | BRAKE ACTUATOR (W/ VSC) | |
| DTC of VSC check cannot be done | 1. Check the DTC again and make sure that the normal code is output. | DTC CHECK / CLEAR |
| 2. TC and CG terminal circuit | TC AND CG TERMINAL CIRCUIT | |
| 3. If the symptoms still occur even after the above circuits in suspected areas are inspected and proved to be normal, replace the brake actuator assembly (skid control ECU). | REMOVAL | |
| VSC warning light abnormal (Remains on) | 1. VSC warning light circuit | VSC WARNING LIGHT REMAINS ON |
| 2. Brake actuator assembly (Skid control ECU) | BRAKE ACTUATOR (W/ VSC) | |
| VSC warning light abnormal (Does not come on) | 1. VSC warning light circuit | VSC WARNING LIGHT DOES NOT COME ON |
| 2. Brake actuator assembly (Skid control ECU) | BRAKE ACTUATOR (W/ VSC) |