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Data List / Active Test

  1. DATA LIST 

    HINT:

    Using the Intelligent tester or Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

    NOTE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
    1. Turn the power switch OFF.
    2. Connect the Intelligent tester or Techstream to the DLC3.
    3. Turn the power switch ON (IG).
    4. Turn the tester on.
    5. Enter the following menus:
      1. Intelligent tester - Select: DIAGNOSIS / OBD/ MOBD / CHASSIS / EMPS / DATA LIST.
      2. Techstream - Select: Chassis / EMPS / Data List.
    6. According to the display on tester, read the "Data List".

      HINT:

      • With the vehicle stopped or driving very slowly, if the steering wheel is turned repeatedly or turned to a lock position and driven for an extended period of time, the power assistance amount is decreased to prevent overheating of the motor and ECU. If this occurs, turn the power switch ON (READY) and do not turn the steering wheel for approximately 10 minutes to return the power assistance to normal.
      • If the auxiliary battery has not been recharged enough or the voltage drops temporarily, the power assistance amount may be decreased and the P/S warning light may be illuminated. If this occurs, the power assistance returns to normal when the auxiliary battery returns to normal.
      1. Intelligent tester

        EMPS 

        DIAGNOSTIC NOTE

        Tester Display Measurement Item/Range Normal Condition Diagnostic Note
        SPD Vehicle speed from meter/
        Min 0 km/h (0 mph), Max 255 km/h (158 mph)
        1. Vehicle is stopped 0 km/h (0 mph)
        2. Vehicle is driven at a constant speed No significant fluctuation
        		 -
        ENGINE REV Engine revolution/
        Min 0 rpm, Max 8192 rpm        		 Engine is running at a constant speed No significant fluctuation -
        MOTOR ACTUAL Amount of current to motor/
        Min -128 A, Max 127 A        		 Power steering is in operation Value changes in proportion to steering effort When malfunction occurs, problem may be in steering system
        COMMAND VALUE Demanded amount of current to motor/
        Min -128 A, Max 127 A        		 Power steering is in operation Value changes in proportion to steering effort When malfunction occurs, problem may be in steering system
        STR ANGL VEL Steering angle speed/
        Min -4,096 deg/sec, Max 4064 deg/sec        		 Steering wheel is turned Value changes in proportion to steering speed -
        THERMISTOR TEMP ECU substrate temperature/
        Min -50°C, Max 205°C        		 Equivalent to ambient ECU substrate temperature -
        IG SUPPLY ECU power source voltage/
        Min 0 V, Max 25 5 V        		 Power switch ON (IG) 11 to 14 V -
        STR SENS SIG Steering angle sensor signal status/
        OK or NG        		 OK or NG -
        TRQ1 Torque sensor 1 rotation angle/
        Min 0 deg, Max 360 deg        		 Steering wheel is turned Value changes from 0 to 360° every 22 5° of steering angle When malfunction occurs, problem may be in torque sensor
        TRQ2 Torque sensor 2 rotation angle/
        Min 0 deg, Max 360 deg        		 Steering wheel is turned Value changes from 0 to 360° every 22 5° of steering angle When malfunction occurs, problem may be in torque sensor
        TRQ1 ZERO VAL Zero point value of torque sensor 1/
        Min 0 deg, Max 360 deg        		 Steering wheel is not turned (without load) When malfunction occurs, problem may be in torque sensor
        TRQ2 ZERO VAL Zero point value of torque sensor 2/
        Min 0 deg, Max 360 deg        		 Steering wheel is not turned (without load) When malfunction occurs, problem may be in torque sensor
        STEERING TORQUE Steering torque/
        Min -7 0 N*m, Max 7 0 N*m        		 Steering wheel is turned Value changes in proportion to steering effort When malfunction occurs, problem may be in torque sensor
        MOTOR ROTATE Motor rotation angle/
        Min 0 deg, Max 360 deg        		 Steering wheel is turned Value changes from 0 to 360° every 5° of steering angle When malfunction occurs, problem may be in rotation angle sensor
        COMMAND VALUE 2 Amount of current demanded by motor 2/
        Min -128 A, Max 127 A        		 Power steering is in operation Value changes in proportion to steering effort When malfunction occurs, problem may be in power steering motor
        MOTOR VOLTAGE Motor power source voltage/
        Min 0 V, Max 64 V        		 Power switch ON (READY) 30 to 50 V -
        MTR TERMINAL (U) Motor terminal voltage (U phase)/
        Min 0 V, Max 64 V        		 Power steering is in operation 0 to 50 V When malfunction occurs, problem may be in power steering motor
        MTR TERMINAL (V) Motor terminal voltage (V phase)/
        Min 0 V, Max 64 V        		 Power steering is in operation 0 to 50 V When malfunction occurs, problem may be in power steering motor
        MTR TERMINAL (W) Motor terminal voltage (W phase)/
        Min 0 V, Max 64 V        		 Power steering is in operation 0 to 50 V When malfunction occurs, problem may be in power steering motor
        IG ON/OFF TIMES Number of times IG switch is turned on after DTC detection/
        Min 0 time, Max 255 times        		 0 to 255 -
        MTR OVERHEAT Continuous overheat prevention control record/
        REC or UNREC        		 REC or UNREC -
        MTR LOW POWER PIG power source voltage drop record/
        REC or UNREC        		 REC or UNREC -
        ENG REV INTER Record of engine revolution signal interruption/
        REC or UNREC        		 REC or UNREC -
        STR ANGL INTER Record of steering angle sensor signal interruption/
        REC or UNREC        		 REC or UNREC -
        SPD SIG INVALID Record of vehicle speed signal invalid/
        REC or UNREC        		 REC or UNREC -
        BATT VOL LOW Past occurrences of low battery voltage/
        Min 0 times, Max 65535 times        		 0 to 65535 -
        BATTERY VOLTAGE Auxiliary battery voltage/
        Min 0V, Max 25 5 V        		 Power switch ON (1G) 11 to 14 V -
        HV BAT VOLTAGRE HV battery voltage/
        Min 0 V, Max 450 V        		 Power switch ON (READY) 230 to 450 V -
        POWER OK SIG HV battery use permission signal/
        OK or NG        		 OK or NG -
        BREAK GATE REQ HV battery stop request signal/
        OK or BREAK        		 OK or BREAK -
        DC-DC WARNING Power steering converter warning signal/
        OK or NG        		 OK or NG -
        PS ASSIST SIG Power steering assist signal/
        ON or OFF        		 ON or OFF -
        READY STATUS Ready status/
        READY or OFF        		 READY or OFF -
        MOTOR ACTUAL 2 Amount of current to motor 2/
        Min -327 68 A, Max 327 67 A        		 Power steering is in operation Value changes in proportion to steering effort When malfunction occurs, problem may be in power steering motor
        DTC Number of detected DTCs when freeze frame data is stored/
        Min 0, Max 255        		 0 to 255 -
      2. Techstream

        EMPS 

        DIAGNOSTIC NOTE

        Tester Display Measurement Item/Range Normal Condition Diagnostic Note
        Meter Vehicle Velocity Vehicle speed from meter/
        Min 0 km/h (0 mph), Max 255 km/h (158 mph)
        1. Vehicle is stopped 0 km/h (0 mph)
        2. Vehicle is driven at a constant speed No significant fluctuation
        		 -
        Engine Revolution Engine revolution/
        Min 0 rpm, Max 8,192 rpm        		 Engine is running at a constant speed No significant fluctuation -
        Motor Actual Current Amount of current to motor/
        Min -128 A, Max 127 A        		 Power steering is in operation Value changes in proportion to steering effort When malfunction occurs, problem may be in steering system
        Command Value Current Demanded amount of current to motor/
        Min -128 A, Max 127 A        		 Power steering is in operation Value changes in proportion to steering effort When malfunction occurs, problem may be in steering system
        Steering Angle Velocity Steering angle speed/
        Min -4,096 deg/sec, Max 4064 deg/sec        		 Steering wheel is turned Value changes in proportion to steering speed -
        Thermistor Temperature ECU substrate temperature/
        Min -50°C, Max 205°C        		 Equivalent to ambient ECU substrate temperature -
        IG Power Supply ECU power source voltage/
        Min 0 V, Max 25 5 V        		 Power switch ON (IG) 11 to 14 V -
        Steering Angle Sens Sig Steering angle sensor signal status/
        OK or NG        		 OK or NG -
        Torque Sensor 1 Output Torque sensor 1 rotation angle/
        Min 0 deg, Max 360 deg        		 Steering wheel is turned Value changes from 0 to 360° every 22 5° of steering angle When malfunction occurs, problem may be in torque sensor
        Torque Sensor 2 Output Torque sensor 2 rotation angle/
        Min 0 deg, Max 360 deg        		 Steering wheel is turned Value changes from 0 to 360° every 22 5° of steering angle When malfunction occurs, problem may be in torque sensor
        TRQ1 Zero Point Value Zero point value of torque sensor 1/
        Min 0 deg, Max 360 deg        		 Steering wheel is not turned (without load) When malfunction occurs, problem may be in torque sensor
        TRQ2 Zero Point Value Zero point value of torque sensor 2/
        Min 0 deg, Max 360 deg        		 Steering wheel is not turned (without load) When malfunction occurs, problem may be in torque sensor
        Steering Wheel Torque Steering torque/
        Min -7 0 N*m, Max 7 0 N*m        		 Steering wheel is turned Value changes in proportion to steering effort When malfunction occurs, problem may be in torque sensor
        Motor Rotation Angle Motor rotation angle/
        Min 0 deg, Max 360 deg        		 Steering wheel is turned Value changes from 0 to 360° every 5° of steering angle When malfunction occurs, problem may be in rotation angle sensor
        Command Val Current 2 Amount of current demanded by motor 2/
        Min -128 A, Max 127 A        		 Power steering is in operation Value changes in proportion to steering effort When malfunction occurs, problem may be in power steering motor
        Motor Voltage Motor power source voltage/
        Min 0 V, Max 64 V        		 Power switch ON (READY) 30 to 50 V -
        Motor Terminal Volt (U) Motor terminal voltage (U phase)/
        Min 0 V, Max 64 V        		 Power steering is in operation 0 to 50 V When malfunction occurs, problem may be in power steering motor
        Motor Terminal Volt (V) Motor terminal voltage (V phase)/
        Min 0 V, Max 64 V        		 Power steering is in operation 0 to 50 V When malfunction occurs, problem may be in power steering motor
        Motor Terminal Volt (W) Motor terminal voltage (W phase)/
        Min 0 V, Max 64 V        		 Power steering is in operation 0 to 50 V When malfunction occurs, problem may be in power steering motor
        IG ON/OFF Times Number of times IG switch is turned on after DTC detection/
        Min 0 time, Max 255 times        		 0 to 255 -
        Motor Overheat Record Continuous overheat prevention control record/
        Rec or Unrec        		 Rec or Unrec -
        Motor Lo Power Record PIG power source voltage drop record/
        Rec or Unrec        		 Rec or Unrec -
        Eng Rev Inter Record Record of engine revolution signal interruption/
        Rec or Unrec        		 Rec or Unrec -
        Str Angle Inter Record Record of steering angle sensor signal interruption/
        Rec or Unrec        		 Rec or Unrec -
        Spd Sig Invalid Record Record of vehicle speed signal invalid/
        Rec or Unrec        		 Rec or Unrec -
        Battery Voltage Lo Record Past occurrences of low auxiliary battery voltage/
        Min 0 times, Max 65535 times        		 0 to 65535 -
        Battery Voltage Auxiliary battery voltage/
        Min 0 V, Max 25 5 V        		 Power switch ON (IG) 11 to 14 V -
        HV Battery Voltage HV battery voltage/
        Min 0V, Max 450 V        		 Power switch ON (READY) 230 to 450 V -
        Power Source OK Sig HV battery use permission signal/
        OK or NG        		 OK or NG -
        Break Gate Request Sig HV battery stop request signal/
        OK or BREAK        		 OK or BREAK -
        DC-DC Warning Signal Power steering converter warning signal/
        OK or NG        		 OK or NG -
        PS Assist Signal Power steering assist signal/
        ON or OFF        		 ON or OFF -
        Ready Status Ready status/
        READY or OFF        		 READY or OFF -
        Motor Actual Current 2 Amount of current to motor 2/
        Min -327 68 A, Max 327 67 A        		 Power steering is in operation Value changes in proportion to steering effort When malfunction occurs, problem may be in power steering motor
        The Number of DTCs Number of detected DTCs when freeze frame data is stored/
        Min 0, Max 255        		 0 to 255 -
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