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
    • 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
    • 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 Secons or more, ASC does not be Cancelled.
      • 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