CHARGING SYSTEM DATA LIST / ACTIVE TEST


  1. DATA LIST

    Tech Tips

    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 A/C switch off.

    3. Turn the ignition switch off.

    4. Connect the GTS to the DLC3.

    5. Turn the ignition switch to ON.

    6. Turn the GTS on.

    7. Enter the following menus: Powertrain / Engine and ECT / Data List.

    8. According to the display on the GTS, read the Data List.

      Tech Tips

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


      Powertrain > Engine and ECT > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Battery Voltage Battery voltage

      Min.: 0.000 V

      Max.: 65.535 V

      		 11 to 14 V: Idling If the result is not as specified, abnormal battery voltage is suspected.
      Alternator Output Duty Generator output duty

      Min.: 0.000%

      Max.: 399.993%

      		 Changes according to alternator output. If the result is not as specified, a malfunction of the charging system is suspected.
      Alt Vol - Non Active Test Requested voltage when regulator forced drive is not executed

      Min.: 0.000 V

      Max.: 79.998 V

      After engine start:

      13.5 to 14.4 V (varies with generator temperature)

      		 If the result is not as specified, a malfunction of the charging system is suspected.
      Alt Vol - Active Test Request voltage when regulator under forced activation

      Min.: 0.000 V

      Max.: 79.998 V

      After engine start:

      Approximately same as requested output voltage when Active Test "Control the Voltage of Alternator" is performed.

      		 If the result is not as specified, a malfunction of the charging system is suspected.
      Previous Trip Alternator Max Output Time Generator maximum generating time during previous drive

      Min.: 0 sec.

      Max.: 65535 sec.

      		 - -
      Initial Engine Battery Minimum Voltage Minimum battery voltage at engine start

      Min.: 0.0 V

      Max.: 25.5 V

      		 - -

  2. ACTIVE TEST

    Tech Tips

    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: Powertrain / Engine and ECT / Active Test.

    5. According to the display on the GTS, perform the Active Test.


      Powertrain > Engine and ECT > Active Test
      Tester Display Measurement Item Control Range Diagnostic Note
      Control the Voltage of Alternator Requested output voltage of generator regulator during forced activation Between 12.5 and 14.7 V Test is possible after engine start