ELECTRIC POWER CONTROL SYSTEM DATA LIST / ACTIVE TEST


  1. DATA LIST

    Tech Tips

    Using the intelligent tester to read the Data List allows the values or states of switches, sensor, 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. Warm up the engine.

    2. Turn the engine switch off.

    3. Connect the intelligent tester to the DLC3.

    4. Turn the engine switch on (IG).

    5. Turn the tester on.

    6. Enter the following menus:


      1. Intelligent tester - Select: Body / Electric Power Control / Data List /

    7. According to the display on tester, read the "Data List".


      1. Intelligent tester

        Electric Power Control
        Tester Display Measurement Item/Range Normal Condition Diagnostic Note
        Electrical Charge Current

        Current battery current value display/

        Min.: -300, Max.: 100 [A]

        Amperage value is displayed -
        Battery Temperature

        Current battery temperature value display/

        Min.: -30, Max.: 90 [°C]

        Temperature near battery is displayed -
        Battery Voltage

        Current battery voltage value display/

        Min.: 0, Max.: 16.67 [V]

        Battery voltage is displayed -
        Power Cut Signal

        Condition of relay (which cuts part of vehicle's power) display/

        ON or OFF

        ON: Power supply supplied

        OFF: Power supply cut

        -
        Light and Combi SW Status - - -
        Battery Voltage Low

        Battery voltage drop judgment display/

        ON or OFF

        ON: Dropped

        OFF: Normal

        Meter display is shown
        Control Load Level 3

        Electrical equipment operation limit display/

        ON or OFF

        ON: During electrical equipment operation limit

        OFF: No electrical equipment operation limit

        Meter display is shown
        Voltage Detection

        Battery voltage detection path malfunction display/

        ON or OFF

        ON: Malfunctioning

        OFF: Normal

        Meter display is shown
        Alternator Failure

        Display for generator malfunction or charging line malfunction/

        ON or OFF

        ON: Malfunctioning

        OFF: Normal

        Meter display is shown
        Control Load Level

        Current load control level display/

        0 to 3

        0: No control

        1: Load control level 1

        3: Load control level 3

        Load control level 2 is not displayed
        Request to Limit EPS

        EPS current consumption limit request display/

        0 to 1

        0: No request is made

        1: Request is made

        -
        Req Limit Air Suspension

        Air suspension current consumption limit request display/

        ON or OFF

        ON: No request is made

        OFF: Request is made

        -
        Ctrl Load Lv1 History

        Load control level 1 history count/

        0 to 255

        History count until now -
        Ctrl Load Lv3 History

        Load control level 3 history count/

        0 to 255

        History count until now -
        Req Ctrl Load on Fail Hist

        Load control operation history display (when charging system is malfunctioning)/

        ON or OFF

        ON: Operation history is present

        OFF: No operation history

        -
        Req Ctrl Load on EPS Hist

        Load control operation history display (during EPS operation)/

        ON or OFF

        ON: Operation history is present

        OFF: No operation history

        -
        Req Ctrl Load on PCS Hist

        Load control operation history display (during PCS operation)/

        ON or OFF

        ON: Operation history is present

        OFF: No operation history

        -
        Req Ctrl Load Hist 3

        Load control operation history display (when battery voltage is low)/

        ON or OFF

        ON: Operation history is present

        OFF: No operation history

        -
        Req Ctrl Load Hist 2

        Load control operation history display (when battery voltage is low)/

        ON or OFF

        ON: Operation history is present

        OFF: No operation history

        -
        Req Ctrl Load Hist 1

        Load control operation history display (when battery voltage is low)/

        ON or OFF

        ON: Operation history is present

        OFF: No operation history

        -
        Hist-Bat Vol for Ctrl Load

        Battery voltage value display (when load control is performed)/

        Min.: 0, Max.: 16.67 [V]

        Battery voltage value when load control is performed is displayed -
        Hist-Bat Cur for Ctrl Load

        Battery current value display (when load control is performed)/

        Min.: -300, Max.: 100 [A]

        Battery current value when load control is performed is displayed -
        Bat Temp Hist

        Battery temperature value display (when load control is performed)/

        Min.: -150, Max.: 150 [°C]

        Battery temperature value when load control is performed is displayed -
        Virtual Opn Circuit Vol Hist

        Battery virtual open-circuit voltage value display (when load control is performed)/

        Min.: 0, Max.: 16.67 [V]

        Battery virtual open-circuit voltage value when load control is performed is displayed -
        Internal Resistance Hist

        Battery interior resistance value display (when load control is performed)/

        Min.: 0, Max.: 120 [mΩ]

        Battery interior resistance value when load control is performed is displayed -
        # Codes Number of trouble code - -
  2. ACTIVE TEST

    Tech Tips

    Using the intelligent tester to perform the Active Tests allows relays, VSVs and actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.


    1. Warm up the engine.

    2. Turn the engine switch off.

    3. Connect the intelligent tester to the DLC3.

    4. Turn the engine switch on (IG).

    5. Turn the tester on.

    6. Enter the following menus:


      1. Intelligent tester - Select: Body / Electric Power Control /Active Test /

    7. According to the display on tester, perform the "Active Test".


      1. Intelligent tester

        Electric Power Control
        Tester Display Test Part Control Range
        Activate Power Cut Relay When OFF, power cut linked parts cannot be used ON / OFF
        Limit Load Level Limit control is performed on heater related load control linked systems 0 / 1 / 3
        Request to Limit EPS Limit control is performed on current for EPS assist ON / OFF
        Request to Limit Air Suspension Limit control is performed on air suspension compressor operation ON / OFF