CHARGING SYSTEM DATA LIST / ACTIVE TEST

  1. DATA LIST

    Tip:

    Using the GTS 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. Warm up the engine.

    2. Turn the ignition switch off.

    3. Connect the GTS to the DLC3.

    4. Turn the ignition switch to ON.

    5. Turn the GTS on.

    6. Enter the following menus: Body Electrical / Charging Control / Data List.

    7. Check the values by referring to the table below.

      Body Electrical > Charging Control > Data List

      Tester Display

      Measurement Item

      Range

      Normal Condition

      Diagnostic Note

      Battery Voltage

      Battery voltage

      Min.: 0 V, Max.: 39.99 V

      11 to 14 V:

      Idling

      If the result is not as specified, abnormal battery voltage is suspected.

      Battery Current

      Battery current

      Min.: -125 A, Max.: 124.99 A

      Changes according to alternator output:

      Driving after engine warmed up

      If the result is not as specified, a malfunction of the charging control system is suspected.

      Battery Temperature

      Battery fluid temperature calculated based on output from battery temperature sensor (generator control ECU assembly)

      Min.: -160°C (-256°F), Max.: 159.99°C (319°F)

      Changes according to actual temperature:

      Driving after engine warmed up

      If the result is not as specified, a malfunction of the charging control system is suspected.

      Alternator Output Duty

      LIN1 terminal output (charge control signal)

      Min.: 0%, Max.: 199.21%

      Changes according to alternator output:

      During charging control

      If the result is not as specified, a malfunction of the charging control system is suspected.

      Alternator Voltage

      Requested output voltage of alternator

      Min.: 0 V, Max.: 39.99 V

      Changes according to alternator output:

      During charging control

      If the result is not as specified, a malfunction of the charging control system is suspected.

      Number of DTCs

      Number of DTCs

      Min.: 0, Max.: 255

      0

      -
      Tip:

      Normal Condition: If no idling conditions are specified, the transmission gear shift lever should be in N or P, and the A/C switch and all accessory switches should be off.

  2. ACTIVE TEST

    Tip:

    Using the GTS to perform Active Tests allows relays, VSVs, 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. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Body Electrical / Charging Control / Active Test.

    5. Perform the Active Test by referring to the table below.

      Body Electrical > Charging Control > Active Test

      Tester Display

      Measurement Item

      Control Range

      Diagnostic Note

      Control the Voltage of Alternator

      Request output voltage of generator regulator during forced activation

      Between 12.5 and 14.8 V

      Test is possible after engine start