Traction Control/Active Stability Control System

• General Description
  • Notes
  • Construction Diagram
  • System Configuration Diagram
  • System Check Sound
  • TCL/ASC Operation Sounds And Sensations
  • Sensor
    • G And Yaw Rate Sensor
    • Steering Wheel Sensor
    • ASC Off Switch
  • Actuator
    • Hydraulic Unit
    • TCL/ASC Indicator And ASC Off Indicator
    • TCL/ASC Indicator
      • Notes
      • ASC Off Indicator
      • TCL/ASC Indicator, ASC Off Indicator And Their Operation Pattern
    • TCL/ASC-Ecu
    • System Configuration
    • Overview Of Control
  • Example Of ASC Operation
  • Example Of The Effect Of Control
  • Integrated Control
  • Example Of Operation Of TCL
  • Fail-Safe And Diagnostic Functions
• Diagnosis
  • Introduction To TCL/ASC Diagnosis
  • TCL/ASC Diagnostic Troubleshooting Strategy
  • Diagnostic Function
    • On-Board Diagnostics
    • How To Connect The Scan Tool (M.U.T.-III)
    • How To Read And Erase Diagnostic Trouble Codes
    • How To Read Data List
    • How To Perform Actuator Test
    • How To Diagnose The Can Bus Line
  • Diagnostic Trouble Code Chart
  • Diagnostic Trouble Code Procedures - TCL/ASC-Ecu
    • Wheel Speed DTC C1200: FR Wheel SPD. SNSR. Malfunction
      • Notes
      • Circuit Operation
      • TCL/ASC DTC Set Conditions
      • Troubleshooting Hints (The Most Likely Causes For These DTCS Are To Set Are:)
        • Current Trouble
        • Past Trouble
      • Diagnosis
    • DTC C1201: FR Wheel SPD. SNSR. Invalid Signal
      • Notes
      • Circuit Operation
      • DTC Set Conditions
      • Troubleshooting Hints (The Most Likely Causes For These DTCS Are To Set Are:)
        • Current Trouble
        • Past Trouble
      • Diagnosis
    • DTC C1205: FL Wheel SPD. SNSR. Malfunction
      • Notes
      • Circuit Operation
      • TCL/ASC DTC Set Conditions
      • Troubleshooting Hints (The Most Likely Causes For These DTCS Are To Set Are:)
        • Current Trouble
        • Past Trouble
      • Diagnosis
    • DTC C1206: FL Wheel SPD. SNSR. Invalid Signal
      • Notes
      • Circuit Operation
      • DTC Set Conditions
      • Troubleshooting Hints (The Most Likely Causes For These DTCS Are To Set Are:)
        • Current Trouble
        • Past Trouble
      • Diagnosis
    • DTC C1210: RR Wheel SPD. SNSR. Malfunction
      • Notes
      • Circuit Operation
      • TCL/ASC DTC Set Conditions
      • Troubleshooting Hints (The Most Likely Causes For These DTCS Are To Set Are:)
        • Current Trouble
        • Past Trouble
      • Diagnosis
    • DTC C1211: RR Wheel SPD. SNSR. Invalid Signal
      • Notes
      • Circuit Operation
      • DTC Set Conditions
      • Troubleshooting Hints (The Most Likely Causes For These DTCS Are To Set Are:)
        • Current Trouble
        • Past Trouble
      • Diagnosis
    • DTC C1215: RL Wheel SPD. SNSR. Malfunction
      • Notes
      • Circuit Operation
      • TCL/ASC DTC Set Conditions
      • Troubleshooting Hints (The Most Likely Causes For These DTCS Are To Set Are:)
        • Current Trouble
        • Past Trouble
      • Diagnosis
    • DTC C1216: RL Wheel SPD. SNSR. Invalid Signal
      • Notes
      • Circuit Operation
      • DTC Set Conditions
      • Troubleshooting Hints (The Most Likely Causes For These DTCS Are To Set Are:)
        • Current Trouble
        • Past Trouble
      • Diagnosis
    • DTC C1226: FR Inlet Valve; DTC C1231: FR Outlet Valve; DTC C1236: FL Inlet Valve; DTC C1241: FL Outlet Valve; DTC C1246: RR Inlet Valve; DTC C1251: RR Outlet Valve; DTC C1256: RL Inlet Valve; DTC C1261: RL Outlet Valve; DTC C1300: FR Cut Valve; DTC C1305: FR Suction Valve; DTC C1310: FL Cut Valve; DTC C1315: FL Suction Valve
      • Notes
      • Circuit Operation
      • DTC Set Conditions
      • TROUBLESHOOTING HINTS (The Most Likely Causes For These DTCs Are To Set Are:)
        • Current Trouble
        • Past Trouble
      • Diagnosis
    • DTC C1271: Motor Drive Circuit
      • Notes
      • Circuit Operation
      • TCL/ASC DTC Set Conditions
      • Troubleshooting Hints (The Most Likely Causes For These DTCS Are To Set Are:)
        • Current Trouble
      • Past Trouble
      • Diagnosis
    • DTC C1276: Valve Power Supply Circuit
      • Notes
      • Circuit Operation
      • TCL/ASC DTC Set Conditions
      • Troubleshooting Hints (The Most Likely Causes For These DTCS Are To Set Are:)
        • Current Trouble
      • Past Trouble
      • Diagnosis
    • DTC C1340: Stoplight Switch
      • Notes
      • Circuit Operation
      • DTC Set Conditions
      • Troubleshooting Hints (The Most Likely Causes For These DTCS Are To Set Are:)
        • Current Trouble
      • Past Trouble
      • Diagnosis
    • DTC C1361: M/C Pressure SNSR. Stuck/Low Gain; DTC C1364: M/C Pressure SNSR. Malfunction
      • Notes
      • Circuit Operation
      • TCL/ASC DTC Set Conditions
      • TROUBLESHOOTING HINTS (The Most Likely Causes For These DTCs Are To Set Are:)
      • Diagnosis
    • DTC C1366: Lateral G SNSR. Stuck/Low Gain; DTC C1371: Yaw Rate SNSR. Stuck/Low Gain; DTC C1377: Communication Error G And Yaw Rate SNSR.; DTC C1864: G And Yaw Rate SNSR. Power Supply Voltage
      • Notes
      • Circuit Operation
      • TCL/ASC DTC Set Conditions
        • Notes
        • DTC C1366: Lateral G SNSR. Stuck/Low Gain (Seizure Or Abnormal Output Signal)
        • DTC C1371: Yaw Rate SNSR. Stuck/Low Gain (Seizure, Abnormal Output Signal Or Oscillation)
        • DTC C1377: Communication Error G And Yaw Rate SNSR. (Seizure Or Abnormal Output Signal)
        • DTC C1864: G And Yaw Rate SNSR. Power Supply Voltage (Abnormal Output Or Poor Performance)
      • Troubleshooting Hints (The Most Likely Causes For These DTCS Are To Set Are:)
        • Current Trouble
      • Past Trouble
      • Diagnosis
    • DTC C1394: INCOMP. Learn Neutral (SAS)
      • Notes
      • DTC Set Conditions
      • Troubleshooting Hints (The Most Likely Causes For These DTCS Are To Set Are:)
      • Diagnosis
    • DTC C1395: INCOMP. Brake Fluid Filling
      • Notes
      • TCL/ASC DTC Set Conditions
      • Troubleshooting Hints (The Most Likely Causes For These DTCS Are To Set Are:)
      • Diagnosis
    • DTC C1505: Steering Angle Sensor (Detected By ASC Side); DTC C1506: Steering Angle Sensor Error (Detected By Itself)
      • Notes
      • Circuit Operation
      • TCL/ASC DTC Set Conditions
        • Notes
        • DTC C1505: Steering Angle Sensor (Signal Seizure Or Abnormal Neutral Point)
        • DTC C1506: Steering Angle Sensor (Abnormal Steering Angle)
      • Troubleshooting Hints (The Most Likely Causes For These DTCS Are To Set Are:)
        • Current Trouble
      • Past Trouble
      • Diagnosis
    • DTC C1607: ECU Failure
      • Notes
      • TCL/ASC DTC Set Conditions
      • TROUBLESHOOTING HINTS (The Most Likely Causes For These DTCs Are To Set Are:)
      • Diagnosis
    • DTC C1640: Coding Not Completed
      • Notes
      • TCL/ASC DTC Set Conditions
      • TROUBLESHOOTING HINTS (The Most Likely Causes For These DTCs Are To Set Are:)
      • Diagnosis
    • DTC C1641: Coding Not Completed
      • Notes
      • TCL/ASC DTC Set Conditions
      • Troubleshooting Hints (The Most Likely Causes For These DTCS Are To Set Are:)
      • Diagnosis
    • DTC C1860: Abnormality In Battery Voltage (High Voltage); DTC C1861: Abnormality In Battery Voltage (Low Voltage)
      • Notes
      • Circuit Operation
      • TCL/ASC DTC Set Conditions
      • Troubleshooting Hints (The Most Likely Causes For These DTCS Are To Set Are:)
        • Current Trouble
      • Past Trouble
      • Diagnosis
    • DTC U1073: Bus Off
      • Notes
      • Trouble Judgment
      • Troubleshooting Hints (The Most Likely Causes For These DTCS Are To Set Are:)
      • Diagnosis
    • DTC U1100: CAN Communications System Time Out Error Engine Related Data
      • Notes
      • DTC Set Condition
      • Troubleshooting Hints (The Most Likely Causes For These DTCS Are To Set Are:)
      • Diagnosis
    • DTC U1101: CAN Communications System Time Out Error A/T Related Data
      • Notes
      • DTC Set Condition
      • Troubleshooting Hints (The Most Likely Causes For These DTCS Are To Set Are:)
      • Diagnosis
    • DTC U1104: SAS CAN Timeout/Not Equipped
      • Notes
      • Circuit Operation
      • TCL/ASC DTC Set Conditions
        • Current Trouble
        • Past Trouble
      • Troubleshooting Hints (The Most Likely Causes For These DTCS Are To Set Are:)
      • Diagnosis
    • DTC U1120: CAN Communications System TCL Uncontrollable By Engine Malfunction
      • Notes
      • DTC Set Condition
      • Troubleshooting Hints (The Most Likely Causes For These DTCS Are To Set Are:)
      • Diagnosis
  • Diagnostic Trouble Code Procedures - Steering Wheel Sensor
    • DTC C1551: Hall-IC Output Voltage; DTC C1552: Hall-IC Output Pattern; DTC C1553: Optical Sensor; DTC C1554: Speed Sensor Is Out Of Range; DTC C1555: Steering Angle SNS. Out Of Range; DTC C1608: EEPROM Failure
      • Notes
      • Circuit Operation
      • TCL/ASC DTC Set Conditions
        • Notes
        • DTC C1551: Hall-IC Output Voltage
        • DTC C1552: Hall-IC Output Pattern
        • DTC C1553: Optical Sensor
        • DTC C1554: Speed Sensor Is Out Of Range
        • DTC C1555: Steering Angle SNS. Out Of Range
        • DTC C1608: EEPROM Failure
      • Troubleshooting Hints (The Most Likely Causes For These DTCS Are To Set Are:)
      • Diagnosis
    • DTC U1073: Bus Off
      • Notes
      • Trouble Judgment
      • Troubleshooting Hints (The Most Likely Causes For These DTCS Are To Set Are:)
      • Diagnosis
  • Symptom Chart
  • Symptom Procedures
    • INSPECTION PROCEDURE 1: Communication Between Scan Tool And The TCL/ASC-ECU Is Not Possible.
      • Notes
      • Technical Description (Comment)
      • Troubleshooting Hints (The Most Likely Causes For This Case:)
      • Diagnosis
    • INSPECTION PROCEDURE 2: Communication Between Scan Tool And The Steering Wheel Sensor Is Not Possible.
      • Notes
      • Technical Description (Comment)
      • Troubleshooting Hints (The Most Likely Causes For This Case:)
      • Diagnosis
    • INSPECTION PROCEDURE 3: TCL/ASC-ECU Power Supply Circuit System
      • Notes
      • Circuit Operation
      • Troubleshooting Hints (The Most Likely Causes For This Case:)
      • Diagnosis
    • INSPECTION PROCEDURE 4: Steering Wheel Sensor Power Supply Circuit System
      • Notes
      • Circuit Operation
      • Troubleshooting Hints (The Most Likely Causes For This Case:)
      • Diagnosis
    • INSPECTION PROCEDURE 5: When The Ignition Switch Is Turned To The "ON" Position (Engine Stopped), The "ASC OFF" Indicator Does Not Illuminate.; INSPECTION PROCEDURE 6: When The Ignition Switch Is Turned To The "ON" Position (Engine Stopped), The TCL/ASC Work Indicator Does Not Illuminate.; INSPECTION PROCEDURE 7: The "ASC OFF" Indicator Remains Illuminated After The Engine Is Started.; INSPECTION PROCEDURE 8: The TCL/ASC Work Indicator Remains Illuminated After The Engine Is Started
      • Notes
      • Circuit Operation
      • Comment
      • Troubleshooting Hints
      • Diagnosis
    • INSPECTION PROCEDURE 9: When The ASC OFF Switch Is Push On For 3 Seconds Or More, ASC Does Not Cancel
      • Notes
      • Circuit Operation
      • Comment
      • Troubleshooting Hints
      • Diagnosis
    • INSPECTION PROCEDURE 10: TCL/ASC System Dose Not Operate
      • Comment
      • TROUBLESHOOTING HINTS (The Most Likely Causes For This Case:)
      • Diagnosis
  • Data List Reference Table
  • Actuator Test Reference Table
    • Notes
    • Actuator Test Specifications
  • Check At TCL/ASC-Ecu
    • Terminal Voltage Check Chart
    • Resistance And Continuity Between Harness-Side Connector Terminals
• Special Tools
• On-Vehicle Service
  • Wheel Speed Sensor Output Voltage Measurement
  • Hydraulic Unit Check
  • In The Event Of A Discharged Battery
  • G And Yaw Rate Sensor Calibration
  • Steering Wheel Sensor Calibration
  • Brake Fluid Pressure Sensor Calibration
• Hydraulic Unit
  • Removal And Installation
    • Notes
    • Removal Service Points
      • <<A>> TCL/ASC-Ecu Harness Connector Disconnection
      • <<B>> Hydraulic Unit (Integrated With TCL/ASC-Ecu) Removal
    • Installation Service Point
      • >>A<< Brake Tube Connection
• Wheel Speed Sensor
  • Removal And Installation
    • Notes
    • Removal Service Point
      • <<A>> Front Wheel Speed Sensor/Rear Wheel Speed Sensor Removal
  • Inspection
    • Wheel Speed Sensor Check
    • Toothed Wheel Speed Rotor Check
• ASC Off Switch
  • Removal And Installation
• Inspection
  • ASC Off Switch Continuity Check
• G And Yaw Rate Sensor
  • Removal And Installation
• Steering Wheel Sensor
  • Removal And Installation
    • Notes
    • Installation Service Point
      • >>A<< Steering Wheel Sensor Neutral Point Alignment
• Specifications
  • Fastener Tightening Specification
  • Service Specifications