Active Stability Control System (ASC) (With Diagnostics)
- General Information
- Service Specifications
- Diagnosis
- Introduction To ASC Diagnosis
- ASC Diagnostic Troubleshooting Strategy
- Abs Warning Light, ASC Warning/Operation Light, Brake Warning Light And Brake Auto Hold Indicator Check
- Diagnostic Function
- Diagnostic Trouble Code Chart
- Diagnostic Trouble Code Procedures
- DTC C100A: FL wheel speed sensor circuit; DTC C1015 FR wheel speed sensor circuit; DTC C1020 RL wheel speed sensor circuit; DTC C102B RR wheel speed sensor circuit
- DTC C1011: FL wheel speed sensor signal; DTC C101C FR wheel speed sensor signal; DTC C1027 RL wheel speed sensor signal; DTC C1032 RR wheel speed sensor signal
- DTC C1014: FL wheel speed sensor performance; DTC C101F FR wheel speed sensor performance; DTC C102A RL wheel speed sensor performance; DTC C1035 RR wheel speed sensor performance
- DTC C1041: FL wheel speed tone performance; DTC C1042 FR wheel speed tone performance; DTC C1043 RL wheel speed tone performance; DTC C1044 RR wheel speed tone performance
- DTC C1046: FL wheel speed sensor phase; DTC C1047 FR wheel speed sensor phase; DTC C1048 RL wheel speed sensor phase; DTC C1049 RR wheel speed sensor phase
- DTC C104B: FL inlet valve; DTC C104F FR inlet valve; DTC C1053 RL inlet valve; DTC C1057 RR inlet valve; DTC C105F FL outlet valve; DTC C1063 FR outlet valve; DTC C1067 RL outlet valve; DTC C105B RR outlet valve; DTC C1200 FL-RR cut valve; DTC C1204 FR-RL cut valve; DTC C1208 FL-RR suction valve; DTC C120C FR-RL suction valve
- DTC C2104: Valve power supply circuit
- DTC C1073: Motor drive circuit
- DTC C2116: Pump motor voltage low
- DTC C121D: Brake fluid pressure sensor circuit
- DTC C121E: Brake fluid pressure sensor
- DTC C1000: Brake switch (stuck)
- DTC C123B: System control too long
- DTC C2200: ECU internal error
- DTC C2101: Power supply high voltage
- DTC C1395: Incomplete Brake fluid filling
- DTC C121C: Torque request signal denied
- DTC C2206: Re-execution of variant coding
- DTC C1210: Longitudinal G sensor input circuit
- DTC C1242: Longitudinal G sensor signal
- DTC C123C: Sensor cluster malfunction
- DTC C1392: Incomplete learn (Longitudinal G); DTC C1393 Incomplete learn neutral(Lateral G)
- DTC C2204: Sensor cluster internal error
- DTC C1219: Steering angle sensor signal
- DTC C121A: Steering angle sensor initialization
- DTC C2205: SAS internal error
- DTC C2002: Valve calibration not completed
- DTC C1608: EEPROM fail
- DTC C1707: Implausible coding data
- DTC C1800: Accele./Decele. monitor
- DTC C1801: ACC/FCM Auto Stoplight monitor
- DTC C1802: ACC ECU fail
- DTC C1803: ACC mode off disagreement; DTC C1804 ACC deactivation disagreement
- DTC C1805: FCM/LDW/AHB malfunction
- DTC C1807: FCM/LDW/AHB target deceleration signal
- DTC U0100: Engine ECU CAN timeout; DTC U0101 T/M ECU CAN timeout; DTC U0114 AWD ECU CAN timeout; DTC U0126 Steering angle sensor CAN timeout; DTC U0141 ETACS-ECU CAN timeout; DTC U0317 EPB CAN timeout; DTC U15A0 ACC/FCM ECU CAN timeout; DTC U15A5 FCM/LDW/AHB CAN timeout
- DTC U0401: Engine (CAN message)
- DTC U0417: EPB (CAN message)
- DTC U0428: Steering angle sensor (CAN message)
- DTC U0435: AWC (CAN message)
- DTC U0440: Implausible AWC data
- DTC U1011: ACC/FCM CAN signal error
- DTC U1013: Driver demand torque signal
- DTC U1015: FCM/LDW/AHB Parity/Toggle bit error
- DTC U1073: Bus-off
- DTC U1195: Coding not completed; DTC U1197 Coding data unavailable
- Trouble Symptom Chart
- Symptom Procedures
- Inspection Procedure 1: Scan tool (M.U.T.-III) communication with ABS/ASC system is impossible
- Inspection Procedure 2: ASC OFF light flashes at a rate of 2Hz
- Inspection Procedure 3: The brake warning light does not go out (ABS warning light is OFF) although the parking brake is released
- Inspection Procedure 4: ABS warning light does not illuminate when ignition switch is turned to the ON position (engine stopped)
- Inspection Procedure 5: Brake warning light does not illuminate when the ignition switch is turned to ON position (engine stopped)
- Inspection Procedure 6: ABS warning light stays ON after the engine is started
- Inspection Procedure 7: ASC warning light stays ON after the engine is started
- Inspection Procedure 8: ASC OFF light stays ON after the engine is started
- Inspection Procedure 9: The stability control/TCL system cannot be disabled when ASC OFF switch is pressed for 3 seconds or more to turn the system OFF
- Inspection Procedure 10: Abnormality in brake operation
- Inspection Procedure 11: ASC does not operate or faulty ASC operate
- Inspection Procedure 12: ASC-ECU power supply circuit system
- Inspection Procedure 13: Steering wheel sensor power supply circuit system
- Inspection Procedure 14: ABS/stability control/TCL operates too frequently
- Inspection Procedure 15: HSA (Hill Start Assist) does not work
- Inspection Procedure 16: HSA (Hill Start Assist) works on a flat road
- Inspection Procedure 17: The initial check sound of hydraulic unit is loud
- Inspection Procedure 18: ESS inoperative or improper operative
- Data List Reference Table
- Actuator Test Table
- Check At Ecu Terminals
- Diagnosis
- Diagnosis Troubleshooting Flow
- Diagnostic Function
- Diagnostic Trouble Code Chart
- Diagnostic Trouble Code Procedures
- DTC C1394: INCOMP.learn neutral(SAS)
- DTC C1707: Implausible coding data
- DTC C1747: Shift signal undetermined
- DTC C1750: Voltage out of range
- DTC C1751: ECU failure
- DTC C1752: Radar temperature out of range
- DTC C1753: Radar blockage detected
- DTC C1754: Radar calibration not completed
- DTC C1777: System fail detected (ASC)
- DTC C1778: Vehicle speed signal fail
- DTC C1779: Brake master cylinder PRS.signal
- DTC C1781: SAS internal fail
- DTC C1782: SAS signal fail
- DTC C1784: FCM switch fixed ON
- DTC C1787: APS signal
- DTC C1788: Longitudinal G sensor signal
- DTC C1791: Vehicle speed signal (invalid)
- DTC C1792: Brake M/C PRS. signal (invalid)
- DTC C1793: Lateral ACC. signal (invalid)
- DTC C1794: Longitudinal G signal (invalid)
- DTC C1795: Yaw rate signal (invalid)
- DTC C1796: APS signal (invalid)
- DTC C1798: FCM control disabled (ASC)
- DTC C2256: Brake switch signal fail
- DTC C2271: SAS signal fail
- DTC C2272: Delta SAS signal fail
- DTC C2276: Brake switch signal
- DTC C2292: Auto calibration out of range
- DTC C2298: Ambient sensor signal
- DTC C2299: Implausible coding data
- DTC U0100: Engine CAN timeout
- DTC U0101: T/M CAN timeout
- DTC U0121: ABS/ASC CAN timeout
- DTC U0126: SAS CAN timeout
- DTC U0141: ETACS CAN timeout
- DTC U1190: No receive fault detect signal
- DTC U1195: Coding not completed
- Symptom Chart
- Symptom Procedures
- Special Tools
- On-Vehicle Service
- wheel speed sensor output current measurement
- Hydraulic Unit (HU) Check
- Measures For Discharged Battery
- All Sensor Calibration (G And Yaw Rate Sensor, Steering Wheel Sensor, Brake Fluid Pressure Sensor)
- G And Yaw Rate Sensor Calibration
- Steering Wheel Sensor Calibration
- Brake Fluid Pressure Sensor Calibration
- FCM/LDW/AHB-Ecu Sensor Calibration
- ASC Off Switch
- Hydraulic Unit
- Wheel Speed Sensor
- Steering Wheel Sensor
- FCM/LDW/AHB-Ecu
- Forward Collision Mitigation System (FCM) Switch
- BRAKE AUTO HOLD SWITCH