8ZR-FXE EMISSION CONTROL  EGR VALVE  ON-VEHICLE INSPECTION  

Connect the GTS to the DLC3.

Turn the power switch on (IG).

Turn the GTS on.

Put the engine in Inspection Mode (Maintenance Mode).

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Powertrain > Hybrid Control > Utility

Tester Display
Inspection Mode

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Start the engine and warm it up until the engine coolant temperature is 75°C (167°F) or higher.

HINT:

The A/C switch and all accessories should be off.

Enter the following menus: Powertrain / Engine / Active Test / Control the EGR Step Position / Data List / Intake Manifold Absolute Pressure, Coolant Temperature and Engine Independent.

Powertrain > Engine > Active Test

Active Test Display
Control the EGR Step Position

Data List Display
Intake Manifold Absolute Pressure
Coolant Temperature
Engine Independent

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According to the display on the GTS, compare the values of Data List item Intake Manifold Absolute Pressure before and while performing the Active Test.

NOTICE:

·

Make sure that the value of Data List item Engine Independent is "Operate" while performing the Active Test.

·

Do not leave the EGR valve open for 10 seconds or more during the Active Test.

·

Be sure to return the EGR valve to step 0 when the Active Test is completed.

·

Do not open the EGR valve 30 steps or more during the Active Test.

Standard:

The value of Intake Manifold Absolute Pressure changes according to the EGR valve step set by the Active Test.

Data List	Control the EGR Step Position (Active Test)
	Before Active Test (Engine idling)	0 Steps	0 to 30 Steps (Engine idling)
Intake Manifold Absolute Pressure	20 to 40 kPa (2.9 to 5.8 psi)	(EGR valve is fully closed)	Intake Manifold Absolute Pressure value is at least +10 kPa (1.45 psi) higher than when EGR valve is fully closed

HINT:

·

If the value of Data List item Engine Independent is "Not Opr" when the engine is idling, charge control is being performed. Perform the Active Test after charge control is complete ("Operate" is displayed).

·

While performing the Active Test, if the increase in the value of Intake Manifold Absolute Pressure is small, the EGR valve assembly may be malfunctioning.

·

Even if the EGR valve assembly is malfunctioning, rough idling or an increase in the value of Intake Manifold Absolute Pressure may occur while performing the Active Test. However, the amount that the value of Intake Manifold Absolute Pressure increases will be smaller than normal.