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Home >> Lexus >> 2012 >> CT 200h L4-1.8L (2ZR-FXE) Hybrid >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Testing and Inspection >> Scan Tool Testing and Procedures >> Data List / Active List >> Part 4

Part 4





2ZR-FXE ENGINE CONTROL: SFI SYSTEM: DATA LIST / ACTIVE TEST (Continued)

16. Misfire

Ignition Trig. Count





Cylinder #1 Misfire Count to Cylinder #4 Misfire Count





All Cylinders Misfire Count





Misfire RPM





Misfire Load





Misfire Margin





17. Various Vehicle Conditions 5

Electric Fan Motor





Idle Fuel Cut





FC TAU





Communication with HV





Communication with Brake





Comm with Air Conditioner





Model Code





Engine Type





Cylinder Number





Destination





Model Year





System Identification





18. Compression

Engine Speed of Cyl #1 to #4





Av Engine Speed of All Cyl





19. Various Vehicle Conditions 6

A/F Sensor Determination (worst value) #1





Engine Speed Fluctuation Avg (worst value) #1 to #4





Normal Mode Switch





Requested Engine Torque





HV Target Engine Speed





Actual Engine Torque





Engine Run Time





Request Engine Run Time





Judge Time Engine Ignition





Judge Time Engine Output





Fuel Level





ISC Learning





F/C for Engine Stop Req





Engine Independent





Racing Operation





Request Warm-up





Engine Independent Control





Elec Water Pump Target Spd





Elec Water Pump Spd





ISC Learning Value





20. ACTIVE TEST

HINT
Using the Techstream 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.

(a) Warm up the engine.

(b) Turn the power switch off.

(c) Connect the Techstream to the DLC3.

(d) Turn the power switch on (IG).

(e) Turn the Techstream on.

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

(g) According to the display on the Techstream, perform the Active Test.













HINT
*1: While the Check the Cylinder Compression Active Test is being performed, if the speed of one cylinder is more than the other cylinders, it can be determined that the compression pressure of that cylinder is lower than the other cylinders.

(1) Connect the Techstream to the DLC3.

(2) Turn the power switch on (IG) and turn the Techstream on.

(3) Put the engine in inspection mode (maintenance mode) Component Tests and General Diagnostics.

(4) Start the engine and warm it up.

(5) Turn the power switch off.

(6) Turn the power switch on (IG) and turn the Techstream on.

(7) Put the engine in inspection mode (maintenance mode) Component Tests and General Diagnostics.

HINT
Do not start the engine.

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

HINT
To display the entire Data List, press the pull down menu button next to Primary. Then select Compression.

(9) Push the snapshot button to turn the snapshot function on.

HINT
Using the snapshot function, data can be recorded during the Active Test.

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

(11) Start the engine.





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

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

HINT
* At first, the Techstream display will show each cylinder's engine speed measurement to be extremely high. After the engine has started, each cylinder's engine speed measurement will change to the actual engine speed.
* As soon as the measurements are obtained, finish the Active Test.

(13) Stop the engine, and then change Check the Cylinder Compression to OFF after the engine stops.

(14) Push the snapshot button to turn the snapshot function off.

(15) Select "Stored Data" on the Techstream screen, select the recorded data and display the data as a graph.

HINT
If the data is not displayed as a graph, the change of the values cannot be observed.

(16) Check the change in engine speed values.

HINT
As the data values of the Active Test return to their default values when engine is stopped, the engine speed value of each cylinder cannot be observed. Therefore, it is necessary to use the data recorded with the snapshot function to check the engine speed values recorded during engine running.

Reference Waveforms for Active Test

* *2: Control the Injection Volume (Idling after warming up)





HINT
During the Active Test, air-fuel ratio feedback control and feedback learning are stopped.





HINT
* Usually, the value of AFS Voltage B1S1 changes to below 3.1 V when the control value for Control the Injection Volume is changed to +12%.
* Usually, the value of AFS Voltage B1S1 changes to 3.4 V or higher when the control value for Control the Injection Volume is changed to -12%.
* Usually, the value of O2S B1S2 changes to 0.55 V or higher when the control value for Control the Injection Volume is changed to +12%.
* Usually, the value of O2S B1S2 changes to below 0.4 V when the control value for Control the Injection Volume is changed to -12%.

* *3: Control the ETCS Open/Close Fast Speed [Active Test for electrical throttle control system] (Power switch on (IG))





HINT
* Usually, Throttle Position Command (Target Value) and Throttle Position No. 1 (Actual Value) are almost the same.
* If any DTCs related to the Electronic Throttle Control System (ETCS) are stored, this Active Test does not function.





* *4: Control the EGR Step Position (Idling after warming up, A/C off)









HINT
* Usually, when the control value for Control the EGR Step Position is "0 step", the value of MAP is between 20 and 40 kPa and idling is stable.
* Usually, when the control value for Control the EGR Step Position is changed from "0 step" to "30 step", the value of MAP increases to a value at least 10 kPa higher than the value of MAP when the control value for Control the EGR Step Position was "0 step", and the engine idles roughly or stalls.
* This data is taken from an Active Test in which the step position was raised in increments of 1 step. The EGR valve inspection in the troubleshooting procedures checks the operation of the valve by stalling the engine and raises the step position in increments of 5 step.
* 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.

* *5: Activate the VSV for Evap Control (Idling after warming up)





HINT
Even when the Active Test is turned on (the purge VSV is opened 30%), air-fuel ratio feedback continues and control is performed so that the air-fuel ratio is the stoichiometric ratio. Therefore, by observing the change in "Short FT", it is possible to determine whether the purge VSV is actually open as well as the concentration of HC in the purge gas.





HINT
The graphs and values above are for reference only because the fuel injection volume (compensation volume) varies depending on the HC density of the purge air from the canister.

* *6: Control the VVT Linear (Bank 1)









HINT
* *: Change the control value for Control the VVT Linear to +30% or -30% in increments of 5%.
* The Control the VVT Linear Active Test considers the value of VVT Aim Angle to be 0 and raises or lowers the duty ratio with respect to VVT Aim Angle #1.
* The sum of the control value for the Control the VVT Linear Active Test and the value of VVT Aim Angle #1 is approximately equal to the value of VVT OCV Duty #1.
* When the control value for the Control the VVT Linear Active Test is changed a few times, there should not be a large discrepancy between VVT OCV Duty #1 when the system starts advancing or retarding the timing and the rate of change of VVT Change Angle #1.
* Test not possible with park (P) selected during charge control. Move shift lever to N to perform test.

21. 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 stored, 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 power switch on (IG).

(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.




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