LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2008 >> LX 570 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission >> Automatic Transmission System >> Data List / Active Test
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Data List / Active Test

  1. READ DATA LIST 

    HINT:

    Using the Techstream 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 engine switch off.
    3. Connect the Techstream to the DLC3.
    4. Turn the engine switch on (IG).
    5. Turn the Techstream on.
    6. Enter the following menus: Powertrain / Engine and ECT / Data List.
    7. According to the display on the Techstream, read the Data List.

    Engine and ECT 

    DATA LIST

    Tester Display Measurement Item/Range Normal Condition Diagnostic Note
    SPD (SP2) Output shaft speed/
    Min.: 0 km/h (0 mph)
    Max.: 255 km/h (158 mph)    		 Vehicle stopped: 0 km/h (0 mph) (output shaft speed equal to vehicle speed) -
    SPD (NT) Input shaft speed/
    Min.: 0 RPM
    Max: 12750 RPM    		 Lock-up:
    • ON (after warming up engine): Input turbine speed (NT) equal to engine speed
    • OFF (idling with shift lever in N): Input turbine speed (NT) nearly equal to engine speed
    		 The data is displayed in increments of 50 RPM.
    Neutral Position SW Signal PNP switch status/
    ON or OFF    		 Shift lever:
    • In P or N: ON
    • Not in P or N: OFF
    		 When the shift lever position displayed on the Techstream differs from the actual position, the adjustment of the PNP switch or shift cable may be incorrect.
    HINT:
    When failure still occurs even after adjusting these parts, refer to DTC P0705 (See DTC P0705 TRANSMISSION RANGE SENSOR CIRCUIT MALFUNCTION (PRNDL INPUT) ).
    Stop Light Switch Stop light switch status/
    ON or OFF    		 Brake pedal.
    • Depressed: ON
    • Released: OFF
    		 -
    Shift Status ECM gear shift command/1st, 2nd, 3rd, 4th, 5th or 6th Shift lever:
    • In D: 1st, 2nd, 3rd, 4th, 5th or 6th
    • In S: 1st, 2nd, 3rd, 4th, 5th or 6th
    		 -
    Shift SW Status (R Range) PNP switch status/ON or OFF Shift lever:
    • In R: ON
    • Not in R: OFF
    		 When the shift lever position displayed on the Techstream differs from the actual position, the adjustment of the PNP switch or shift cable may be incorrect.
    HINT:
    When failure still occurs even after adjusting these parts, refer to DTC P0705 (See DTC P0705 TRANSMISSION RANGE SENSOR CIRCUIT MALFUNCTION (PRNDL INPUT) ).
    Shift SW Status (P Range) PNP switch status/ ON or OFF Shift lever
    • In P: ON
    • Not in P: OFF
    		 When the shift lever position displayed on the Techstream differs from the actual position, the adjustment of the PNP switch or shift cable may be incorrect.
    HINT:
    When failure still occurs even after adjusting these parts, refer to DTC P0705 (See DTC P0705 TRANSMISSION RANGE SENSOR CIRCUIT MALFUNCTION (PRNDL INPUT) ).
    Shift SW Status (N Range) PNP switch status/ ON or OFF Shift lever.
    • In N: ON
    • Not in N: OFF
    		 When the shift lever position displayed on the Techstream differs from the actual position, the adjustment of the PNP switch or shift cable may be incorrect.
    HINT:
    When failure still occurs even after adjusting these parts, refer to DTC P0705 (See DTC P0705 TRANSMISSION RANGE SENSOR CIRCUIT MALFUNCTION (PRNDL INPUT) ).
    Shift SW Status (D Range) PNP switch status/ ON or OFF Shift lever:
    • In D: ON
    • Not in D: OFF
    		 When the shift lever position displayed on the Techstream differs from the actual position, the adjustment of the PNP switch or shift cable may be incorrect.
    HINT:
    When failure still occurs even after adjusting these parts, refer to DTC P0705 (See DTC P0705 TRANSMISSION RANGE SENSOR CIRCUIT MALFUNCTION (PRNDL INPUT) ).
    Sports Shift Up SW Sport shift up switch status/ ON or OFF
    • ON: Shift lever held in "+" (up-shift)
    • OFF: Shift lever not held in "+" (up-shift)
    		 -
    Sports Shift Down SW Sport shift down switch status/ ON or OFF
    • ON: Shift lever held in "-" (down-shift)
    • OFF: Shift lever not held in"-" (down-shift)
    		 -
    Sports Mode Selection SW Sport mode select switch status/ ON or OFF Shift lever:
    • ON: In S,"+" or"-"
    • OFF: Not in S,"+" or"-"
    		 -
    Pattern Switch (PWR/M) Pattern select switch (PWR) status/ ON or OFF Pattern select switch (PWR).
    • Pushed: ON
    • Not pushed: OFF
    		 -
    Snow Switch Status Pattern select switch (2ND) status/ ON or OFF Pattern select switch (2ND): Pushed: ON
    ↓
    Pattern select switch (2ND): Pushed: OFF    		 -
    A/T Oil Temperature 1 No. 1 ATF temperature sensor value/ Min.: -40°C (-40°F) Max.: 215°C (419°F)
    • After stall test: Approximately 80°C (176°F)
    • With engine cold: Equal to ambient temperature
    		 If the value is -40°C (-40°F) or 215°C (419°F), the No. 1 ATF temperature sensor circuit is open or shorted.
    A/T Oil Temperature 2 No. 2 ATF temperature sensor value/ Min.: -40°C (-40°F) Max.: 215°C (419°F)
    • After stall test: Approximately 80°C (176°F)
    • With engine cold: Equal to ambient temperature
    		 If the value is -40°C (-40°F) or 215°C (419°F), the No. 2 ATF temperature sensor circuit is open or shorted.
    AT Fluid Flex lock-up judder judgment/ ON or OFF
    • ON: Judder judgment occurs
    • OFF: Judder judgment does not occur
    		 -
    Lock Up Lock-up/ ON or OFF Lock-up:
    • Operating: ON
    • Not operating: OFF
    		 -
    Lock Up Solenoid Status Lock-up solenoid status/ ON or OFF Lock-up solenoid:
    • Operating: ON
    • Not operating: OFF
    		 -
    SLU Solenoid Status Shift solenoid valve SLU status/ ON or OFF Shift solenoid valve SLU:
    • Operating: ON
    • Not operating: OFF
    		 -
    SLT Solenoid Status Shift solenoid valve SLT status/ ON or OFF
    • Accelerator pedal depressed: OFF
    • Accelerator pedal released: ON
    		 -
  2. PERFORM 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.

    1. Warm up the engine.
    2. Turn the engine switch off.
    3. Connect the Techstream to the DLC3.
    4. Turn the engine switch on (IG).
    5. Turn the Techstream on.
    6. Enter the following menus: Powertrain / Engine and ECT / Active Test.
    7. According to the display on the Techstream, perform the Active Test.

    Engine and ECT 

    ACTIVE TEST

    Tester Display Test Part Control Range Diagnostic Note
    Connect the TC and TE1 Turn on and off TC and TE1 connection ON or OFF
    • ON: TC and TE1 are connected.
    • OFF: TC and TE1 are disconnected.
    Activate the Solenoid (SLU) Operate shift solenoid valve SLU ON or OFF [Vehicle Condition]
    • The engine is stopped.
    • The shift lever is in P or N.
    Activate the Solenoid (SLT)* Operate shift solenoid valve SLT and raise line pressure ON or OFF
    HINT:
    • OFF: Line pressure up (when Active Test "Activate the Solenoid (SLT)" is performed, ECM commands shift solenoid valve SLT to turn OFF)
    • ON: No action (normal operation)
    		 [Vehicle Condition]
    • The vehicle is stopped.
    • The engine is idling.
    Activate the Solenoid (S1) Operate shift solenoid valve S1 ON or OFF [Vehicle Condition]
    • The engine is stopped.
    • The shift lever is in P or N.
    Activate the Solenoid (S2) Operate shift solenoid valve S2 ON or OFF [Vehicle Condition]
    • The engine is stopped.
    • The shift lever is in P or N.
    Activate the Solenoid (S3) Operate shift solenoid valve S3 ON or OFF [Vehicle Condition]
    • The engine is stopped.
    • The shift lever is in P or N.
    Activate the Solenoid (S4) Operate shift solenoid valve S4 ON or OFF [Vehicle Condition]
    • The engine is stopped.
    • The shift lever is in P or N.
    Activate the Lock Up Control shift solenoid valve SLU to set automatic transmission to lock-up condition ON or OFF It is possible to check the shift solenoid valve SLU operation.
    [Vehicle Condition]
    • The throttle valve opening angle is less than 35%.
    • The vehicle speed is 60 km/h (37 mph) or more.
    Control the Shift Position Operate shift solenoid valve and set each shift position
    • Press "→" button: Shift up
    • Press "←" button: Shift down
    		 It is possible to check the operation of the shift solenoid valves
    [Vehicle Condition]
    The vehicle speed is 50 km/h (31 mph) or less.
    Activate the Solenoid (SR) Operate shift solenoid valve SR ON or OFF [Vehicle Condition]
    • The engine is stopped.
    • The shift lever is in P or N.
    Activate the Solenoid (SL1) Operate shift solenoid valve SL1 ON or OFF [Vehicle Condition]
    • The engine is stopped.
    • The shift lever is in P or N.
    Activate the Solenoid (SL2) Operate shift solenoid valve SL2 ON or OFF [Vehicle Condition]
    • The engine is stopped.
    • The shift lever is in P or N.

    HINT:

    *: Activate the Solenoid (SLT) in the Active Test is performed to check the line pressure changes by connecting SST to the automatic transmission, which is used in the Hydraulic Test (See HYDRAULIC TEST ) as well. Note that the pressure values in the Active Test and hydraulic test are different.
scientia non olet · About LEMON Manuals