Data List / Active List

2AZ-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: DATA LIST / ACTIVE TEST

1. DATA LIST

HINT

By reading the Data List displayed on the Techstream, you can check values, including those of the switches, sensors, and actuators, without removing any parts. Reading the Data List as the first step in troubleshooting is one method of shortening diagnostic time.

NOTICE:

In the table below, the values listed under Normal Conditions are for reference only. Do not depend solely on these values when determining whether or not a part is faulty.

(a) Warm up the engine.

(b) Turn the ignition switch off.

(c) Connect the Techstream to the DLC3.

(d) Turn the ignition switch to the ON position.

(e) Turn the Techstream on.

(f) If using the Techstream, enter the following menus: Powertrain / Engine and ECT / Data List.

(g) Check the values by referring to the table below.

ECM:

ECM:

ECM:

ECM:

ECM:

ECM:

ECM:

ECM:

ECM:

HINT

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

*1: Excluding throttle valve opening percentage due to Idle Speed Control (ISC).

*2: A/T only

2. ACTIVE TEST

HINT

Performing an Active Test enables components including the relays, VSV (Vacuum Switching Valve), and actuators, to be operated without removing any parts. The Active Test can be performed with the Techstream. Performing an Active Test as the first step in troubleshooting is one method of shortening diagnostic time.

Data List can be displayed during Active Test.

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to the ON position.

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Engine and ECT / Active Test.

(e) Perform the Active Test by referring to the table below.

ECM:

ECM:

HINT

*: When cranking the engine, each cylinder measures the engine speed. In this Active Test, the fuel and ignition of all cylinders are cut, and cranking occurs for approximately 10 seconds. Then, each cylinder measures the engine speed. If a cylinder's engine speed is higher than the others, that cylinder's compression pressure is compared to the others, and is determined whether it is low or not.

* Warm up the engine.

* Turn the ignition switch off.

* Connect the Techstream to the DLC3.

* Turn the ignition switch to ON.

* Turn the Techstream on.

* Enter the following menus: Powertrain / Engine and ECT / Active Test / Check the Cylinder Compression.

HINT

If the results are not displayed normally, select the display items from the Data List before performing the Active Test. Enter the following menus: Powertrain / Engine and ECT / Compression / Engine Speed of Cyl #1 to #4 and Av Engine Speed of All Cyl.

* While the engine is not running, press the RIGHT or LEFT button to change the Check the Cylinder Compression to ON.

HINT

After performing the above procedure, the Check the Cylinder Compression Active Test will start. Fuel injection for all cylinders is prohibited, and each cylinder's engine speed measurement will enter standby mode.

* Fully open the throttle.

* Crank the engine for about 10 seconds.

* Monitor the engine speed (Engine Speed of Cyl #1 to #4, Av Engine Speed of All Cyl) displayed on the Techstream.

HINT

At first, the Techstream display will show each cylinder's engine speed measurement to be extremely high. After approximately 10 seconds of engine cranking, each cylinder's engine speed measurement will change to the actual engine speed.

NOTICE:

* After the Check the Cylinder Compression Active Test is turned ON, it will automatically turn OFF after 255 seconds.

* When the Check the Cylinder Compression Active Test is OFF and the engine is cranked, the engine will start.

* If the Check the Cylinder Compression Active Test needs to be performed after it is turned ON and performed once, press EXIT to return to the Active Test menu screen. Then perform the Check the Cylinder Compression Active Test again.

* Use a fully-charged battery.

3. SYSTEM CHECK

HINT

Performing a System Check enables the system, which consists of multiple actuators, to be operated without removing any parts. In addition, it can show whether or not any DTCs are set, and can detect potential malfunctions in the system. The System Check can be performed with the Techstream.

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to the ON position.

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Engine and ECT / Utility.

(e) Perform the System Check by referring to the table below.