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Data List / Active Test [09/2014 - 11/2017]

WARNING: This page is about a different car, the 2017 Lexus RC F, 2016 Lexus RC F, and 2015 Lexus RC F. However, it is still accessible from the selected car via links, so may be relevant.
  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.

    1. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Cruise Control / Data List.
    5. Read the Data List according to the display on the Techstream.

      Powertrain > Cruise Control > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      CCS Vehicle Spd Vehicle speed Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph) Actual vehicle speed -
      CCS Mem Vehicle Spd Stored vehicle speed Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph) Actual stored vehicle speed -
      Cruise Control Cruise control system active condition ON or OFF ON: Cruise control activated
      OFF: Cruise control deactivated
      -
      Main SW M-CPU Cruise control switch signal (Main CPU) ON or OFF ON: Cruise control switch (ON/OFF button) pushed
      OFF: Cruise control switch (ON/OFF button) released
      -
      CCS Ready M-CPU Cruise control system standby condition (Main CPU) ON or OFF Each time cruise control switch (ON/OFF button) is pushed, ON or OFF changes -
      CCS Indicator M-CPU Cruise control indicator signal (Main-CPU) ON or OFF ON: Cruise control indicator light illuminated in green
      OFF: Cruise control indicator light not on
      -
      Cancel Switch CANCEL switch signal ON or OFF ON: CANCEL switch on
      OFF: CANCEL switch off
      -
      SET/COAST Switch -/SET switch signal ON or OFF ON: -/SET switch on
      OFF: -/SET switch off
      -
      RES/ACC Switch +/RES switch signal ON or OFF ON: +/RES switch on
      OFF: +/RES switch off
      -
      Stop Light Switch 1 Stop light switch signal ON or OFF ON: Brake pedal depressed
      OFF: Brake pedal released
      -
      Stop Light Switch 2 Stop light switch signal ON or OFF ON: Brake pedal depressed
      OFF: Brake pedal released
      -
      Cruise Operation Status Transmission range sensor signal ON or OFF ON: Cruise control operated
      OFF: Cruise control operation stopped
      -
      Cruise Request Driving Force Cruise request torque signal -51.2 to 50.8 kN Differs according to the cruise control system condition -
      Brake Cancel Switch Brake cancel signal ON or OFF ON: Brake pedal depressed
      OFF: Brake pedal released
      -

      HINT: 

      • If any DTCs are output, the value for a measurement item may be incorrect.
      • If any DTCs are output, perform troubleshooting accordingly. After repair, confirm relevant values using the Data List.
  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. Connect the Techstream to the DLC3.
    2. Turn the engine switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Combination Meter / Active Test.
    5. Perform "Active Test" according to the display on the Techstream.

      HINT: 

      The engine switch must be turned on to proceed with the Active Test using the Techstream.

      Body Electrical > Combination Meter > Active Test 

      Tester Display Measurement Item Control Range Diagnostic Note
      Indicat. Lamp Cruise Cruise control indicator ON or OFF -
      Indicat. SET Cruise control SET indicator ON or OFF -