LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2016 >> LX 570 >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Dynamic Radar Cruise Control System (Diagnostics - Introduction) >> Dynamic Radar Cruise Control System >> Freeze Frame Data [09/2015 - ] >> Freeze Frame Data [09/2015 - ]
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Freeze Frame Data [09/2015 - ]

  1. CHECK FREEZE FRAME DATA 

    HINT: 

    The ECU data indicating the vehicle status is stored in the ECU as a freeze frame data simultaneously as the DTC is stored.

    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 / Radar Cruise 1*1 or Radar Cruise 2*2 / Trouble Codes.
      1. *1: Output from the ECM
      2. *2: Output from the driving support ECU Assembly
    5. From the DTC screen, select the DTC (snow icon displayed) to which freeze frame data is recorded.
  2. LIST OF FREEZE FRAME DATA 
    RADAR CRUISE 1

    Tester Display Measurement Item/Range Normal Condition Diagnostic Note
    Cruise Vehicle Speed Vehicle speed / Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph) Actual vehicle speed -
    Cruise Memory Vehicle Speed Stored vehicle speed / Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph) Stored vehicle speed -
    Cruise Request Throttle Opening Angle Required throttle opening angle / Min.: 0°, Max.: 124.99° Actual required throttle opening angle -
    Driving Support ECU Target Acceleration Target acceleration of driving support ECU / Min.: -13.10 m/s2, Max.: 13.10 m/s2 Current value displayed -
    Cruise Request Driving Force Cruise request drive torque / Min.: -10.00 kN, Max.: 9.92 kN Differs according to the cruise control system condition -
    Cruise Request Driving Force Feedback Status Cruise request driving force feedback mode / No Control, Suspend, Neg Calc Prohibited, Pos Calc Prohibited, Normal or Increasing at Start Current value displayed -
    Cruise Control Permission Condition Cruise control system condition / NG or OK OK: Cruise control permitted
    NG: Cruise control prohibited
    -
    Cruise Control Condition Cruise control system active condition / No Control or Constant Speed Control Mode - Ready Current value displayed -
    Cruise Main Switch Operation Condition Cruise control main switch status / ON or OFF ON: Cruise control main switch pushed
    OFF: Cruise control main switch not pushed
    -
    Accelerator Pedal Condition of the accelerator pedal during cruising / ON or OFF ON: Accelerator pedal depressed
    OFF: Accelerator pedal released
    -
    Stop Light Switch Sub-CPU Stop light switch signal / ON or OFF ON: Brake pedal depressed
    OFF: Brake pedal released
    -
    Request Manual Cancel Whether there is a manual cancel request / ON or OFF ON: Manual cancel request made
    OFF: Manual cancel request not made
    -
    Request Automatic Cancel Whether there is an automatic cancel request / ON or OFF ON: Automatic cancel request made
    OFF: Automatic cancel request not made
    -
    Cruise Brake Control Decision Cruise brake control decision / ON or OFF ON: Cruise brake activated
    OFF: Cruise brake deactivated
    -
    Cruise Brake Control Permission Condition Cruise brake control permission condition / OK or NG OK: Cruise brake control permitted
    NG: Cruise brake control prohibited
    -
    Brake Cancel Switch Stop light switch status / ON or OFF ON: Brake pedal depressed
    OFF: Brake pedal released
    -
    RADAR CRUISE2

    Tester Display Measurement Item/Range Normal Condition Diagnostic Note
    Cruise Control Mode Cruise control mode condition / All Spd, Hi Spd or Normal All Spd: Vehicle-to-vehicle distance control mode (w/ full-speed following function)
    Hi Spd: Vehicle-to-vehicle distance control mode (w/o full-speed following function)
    Normal: Constant speed mode
    -
    Vehicle Distance Distance to preceding vehicle / Min.: 0 m, Max.: 255 m Actual distance to vehicle -
    Vehicle Acceleration Acceleration condition while driving the vehicle / Min.: -5.0 m/s2, Max.: 5.0 m/s2 Current value displayed -
    Closed Throttle Position Closed throttle position condition / ON or OFF ON: Accelerator pedal depressed
    OFF: Accelerator pedal released
    -
    Forward Vhcl Relative Spd Vehicle ahead relative speed / Min.: -128 k/m, Max.: 127 k/m Actual vehicle ahead relative speed -
    Vehicle Approach Warning Vehicle approach warning buzzer condition / ON or OFF ON: Vehicle approach warning buzzer on
    OFF: Vehicle approach warning buzzer off
    -
    Frnt Radar Sens Temp Hi Millimeter wave radar sensor assembly high temperature abnormality / ON or OFF ON: Millimeter wave radar sensor assembly abnormal
    OFF: Millimeter wave radar sensor assembly normal
    -
    Front Radar Voltage Millimeter wave radar sensor assembly low voltage abnormality / ON or OFF ON: Millimeter wave radar sensor assembly abnormal
    OFF: Millimeter wave radar sensor assembly normal
    -