Vehicle Stability Control System
PROBLEM SYMPTOMS CHART - VEHICLE STABILITY CONTROL SYSTEM
| Symptom | Suspected Area | See |
|---|---|---|
| ABS, BA and/or EBD does not operate | 1. Check the DTC again and make sure that the normal system code is output | DIAGNOSIS SYSTEM |
| 2. IG power source circuit | DTC C1241/41 LOW BATTERY POSITIVE VOLTAGE | |
| 3. Front speed sensor circuit | DTC C0200/31 FRONT SPEED SENSOR RH CIRCUIT; DTC C0205/32 FRONT SPEED SENSOR LH CIRCUIT; 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) | |
| 4. Rear speed sensor circuit | DTC C0210/33 REAR SPEED SENSOR RH CIRCUIT; DTC C0215/34 REAR SPEED SENSOR LH CIRCUIT; 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) | |
| 5. Check the ABS and TRACTION actuator assembly with the intelligent tester (Check ABS and TRACTION actuator assembly operation using the ACTIVE TEST function). If abnormal, check the hydraulic circuit for leakage. | 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 ABS and TRACTION actuator assembly (skid control ECU) | REMOVAL | |
| ABS, BA and/or EBD does not operate efficiently | 1. Check the DTC again and make sure that the normal system code is output | DIAGNOSIS SYSTEM |
| 2. Front speed sensor circuit | DTC C0200/31 FRONT SPEED SENSOR RH CIRCUIT; DTC C0205/32 FRONT SPEED SENSOR LH CIRCUIT; 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) | |
| 3. Rear speed sensor circuit | DTC C0210/33 REAR SPEED SENSOR RH CIRCUIT; DTC C0215/34 REAR SPEED SENSOR LH CIRCUIT; 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) | |
| 4. Stop light switch circuit | DTC C1249/49 OPEN IN STOP LIGHT SWITCH CIRCUIT | |
| 5. Check the ABS and TRACTION actuator assembly with the intelligent tester (Check ABS and TRACTION actuator assembly operation using the ACTIVE TEST function). If abnormal, check the hydraulic circuit for leakage. | 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 ABS and TRACTION actuator assembly (skid control ECU) | REMOVAL | |
| ABS sensor DTC check cannot be done | 1. Check the DTC again and make sure that the normal system code is output | DIAGNOSIS SYSTEM |
| 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 ABS and TRACTION actuator assembly (skid control ECU) | REMOVAL | |
| Sensor signal check cannot be done | 1. TS and CG terminal circuit | TS AND CG TERMINAL CIRCUIT |
| 2. ABS and TRACTION actuator assembly (skid control ECU) | REMOVAL | |
| VSC and/or TRACTION does not operate | 1. Check the DTC again and make sure that the normal system code is output | DIAGNOSIS SYSTEM |
| 2. IG power source circuit | DTC C1241/41 LOW BATTERY POSITIVE VOLTAGE | |
| 3. Check the hydraulic circuit for leakage | - | |
| 4. Front speed sensor circuit | DTC C0200/31 FRONT SPEED SENSOR RH CIRCUIT; DTC C0205/32 FRONT SPEED SENSOR LH CIRCUIT; 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) | |
| 5. Rear speed sensor circuit | DTC C0210/33 REAR SPEED SENSOR RH CIRCUIT; DTC C0215/34 REAR SPEED SENSOR LH CIRCUIT; 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) | |
| 6. Yaw rate/Acceleration sensor circuit | DTC C1232/32 STUCK IN DECELERATION SENSOR; DTC C0371/71 YAW RATE SENSOR (TEST MODE DTC); 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 C1279/79 DECELERATION SENSOR OUTPUT VOLTAGE MALFUNCTION (TEST MODE DTC); DTC C1381/97 YAW RATE AND / OR ACCELERATION SENSOR POWER SUPPLY VOLTAGE MALFUNCTION. | |
| 7. Steering angle sensor circuit | DTC C1223/43 ABS CONTROL SYSTEM MALFUNCTION | |
| 8. If the symptoms still occur even after the above circuits in suspected areas are inspected and proved to be normal, replace the ABS and TRACTION actuator assembly (skid control ECU) | REMOVAL | |
| ABS warning light abnormal (Remains on) | 1. ABS warning light circuit | ABS WARNING LIGHT REMAINS ON |
| 2. ABS and TRACTION actuator assembly (skid control ECU) | REMOVAL | |
| ABS warning light abnormal (Does not come on) | 1. ABS warning light circuit | ABS WARNING LIGHT DOES NOT COME ON |
| 2. ABS and TRACTION actuator assembly (skid control ECU) | REMOVAL | |
| SLIP indicator light abnormal (Remains on) | 1. SLIP indicator light circuit | SLIP INDICATOR LIGHT REMAINS ON |
| 2. ABS and TRACTION actuator assembly (skid control ECU) | REMOVAL | |
| SLIP indicator light abnormal (Does not come on) | 1. SLIP indicator light circuit | REMOVAL |
| 2. ABS and TRACTION actuator assembly (skid control ECU) | REMOVAL | |
| VSC sensor DTC check cannot be done | 1. Check the DTC again and make sure that the normal system code is output | REMOVAL |
| 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 ABS and TRACTION actuator assembly (skid control ECU) | REMOVAL | |
| VSC warning light (Multi-information display) abnormal (Remains on) | 1. VSC warning light circuit | VSC WARNING LIGHT REMAINS ON |
| 2. ABS and TRACTION actuator assembly (skid control ECU) | REMOVAL | |
| VSC warning light (Multi-information display) abnormal (Does not come on) | 1. VSC warning light circuit | VSC WARNING LIGHT DOES NOT COME ON |
| 2. ABS and TRACTION actuator assembly (skid control ECU) | REMOVAL | |
| BRAKE warning light abnormal (Remains on) | 1. BRAKE warning light circuit | BRAKE WARNING LIGHT REMAINS ON |
| 2. ABS and TRACTION actuator assembly (skid control ECU) | REMOVAL | |
| BRAKE warning light abnormal (Does not come on) | 1. BRAKE warning light circuit | BRAKE WARNING LIGHT DOES NOT COME ON |
| 2. ABS and TRACTION actuator assembly (skid control ECU) | REMOVAL | |
| Skid control buzzer abnormal | 1. Skid control buzzer circuit | SKID CONTROL BUZZER CIRCUIT |
| 2. ABS and TRACTION actuator assembly (skid control ECU) | REMOVAL |