CHARGING SYSTEM > DATA LIST / ACTIVE TEST

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DATA LIST

HINT:
Using the intelligent tester 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.

NOTICE:
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 intelligent tester to the DLC3.

  4. Turn the ignition switch to ON.

  5. Turn the intelligent tester on.

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

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


Power Management Control ECU 
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
-
Battery Current
Battery current:
Min.: -125 A, Max.: 124.99 A
-20 to 0 A: Turn all of the electrical systems (headlights, blower motor, rear defogger, etc.) off
Charging control service data
Battery Temperature
Battery temperature:
Min.: -160°C, Max.: 159.99°C
Changes in response to actual temperature: After engine warmed up, during driving
Charging control service data
Alternator Output Duty
Generator output duty:
Min.: 0%, Max.: 199.21%
Changes in response to generator electrical output: During charging control
Electricity generated by generator is output through duty ratio charging control service data
Alternator Voltage
Generator voltage:
Min.: 0 V, Max.: 39.99 V
Changes in response to generator electrical output: During charging control
-
Number of DTCs
Number of DTCs:
Min.: 0, Max.: 255
0
-

HINT:
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.


ACTIVE TEST

HINT:
Using the intelligent tester 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 intelligent tester to the DLC3.

  2. Turn the ignition switch to ON.

  3. Turn the intelligent tester on.

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

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


Power Management Control ECU 
Tester Display
Test Part
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