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Home >> Lexus >> 2020 >> ES 300h Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 82 (Dynamic Radar Cruise Control System (Except Hybrid) - Diagnostics - Introduction) >> DYNAMIC RADAR CRUISE CONTROL SYSTEM (for Gasoline Model) >> Data List / Active Test [06/2018 - 08/2021] >> Data List / Active Test [06/2018 - 08/2021]

Data List / Active Test [06/2018 - 08/2021]

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  1. DATA LIST 
    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.
    • When diagnosing symptoms such as hesitation, rough idle, or other small symptoms using vehicle control history, compare data extracted from the same vehicle model in the same conditions and make sure to analyze all data in its entirety before making a diagnosis.
    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 / Data List.
      • *1: Output from the ECM
      • *2: Output from the forward recognition camera
    5. Radar Cruise 1:

      Read the Data List according to the display on the Techstream.

      Powertrain > Radar Cruise1 > Data List 

      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 Cruise requested position 0 to 124.99 deg Changes depending on the conditions of the dynamic radar cruise control system -
      Vehicle Acceleration Acceleration condition while driving the vehicle -13.10 to 13.10 m/s2 Current value displayed -
      Cruise Target Acceleration Target acceleration while in cruise control mode -13.10 to 13.10 m/s2 Current value displayed -
      Driving Support ECU Target Acceleration - - - Cannot be used
      Acceleration Continuation Decision - - - Cannot be used
      Output Driving Force - - - Cannot be used
      Cruise Request Driving Force Cruise request torque signal -10.00 to 9.92 kN Changes depending on the conditions of the dynamic radar cruise control system -
      Cruise Request Driving Force Feedback Status - - - Cannot be used
      Cruise Control Permission Condition - - - Cannot be used
      Cruise Control Condition - - - Cannot be used
      Cruise Control Mode Cruise control mode condition Vehicle Distance Control Mode (All Speed), Vehicle Distance Control Mode or Constant Speed Control Mode Vehicle Distance Control Mode (All Speed): Vehicle distance control mode (All Speed) operating
      Vehicle Distance Control Mode: Vehicle distance control mode operating
      Constant Speed Control Mode: Constant speed control mode operating
      -
      Cruise Request Gear Position Shift request from ECM None or 255 Gear Shift request from cruise control system -
      Cruise Acceleration and Deceleration Operation Condition - - - Cannot be used
      Cancel Switch CANCEL switch status ON or OFF ON: CANCEL switch pushed
      OFF: CANCEL switch not pushed
      -
      -SET Switch -SET switch status ON or OFF ON: -SET switch pushed
      OFF: -SET switch not pushed
      -
      +RES Switch +RES switch status ON or OFF ON: +RES switch pushed
      OFF: +RES switch not pushed
      -
      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
      -
      Cruise Ready Main-CPU Cruise control system standby condition ON or OFF ON: Cruise control main switch pushed
      OFF: Cruise control main switch not pushed
      -
      Cruise Ready Sub-CPU Cruise control system standby condition 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
      -
      Cruise Brake Cancel Switch Cruise control brake cancel condition ON or OFF ON: Brake pedal depressed
      OFF: Brake pedal released
      -
      Stop Light Switch Main-CPU Stop light switch signal ON or OFF ON: Brake pedal depressed
      OFF: Brake pedal released
      -
      Stop Light Switch Sub-CPU - - - Cannot be used
      Request Manual Cancel - - - Cannot be used
      Request Automatic Cancel - - - Cannot be used
      Cruise Brake Control Decision Cruise brake control decision ON or OFF ON: Cruise brake activated
      OFF: Cruise brake deactivated
      -
      Cruise Brake Control Permission Condition - - - Cannot be used
      Cruise Indicator Cruise control indicator status ON or OFF ON: Cruise control indicator illuminates
      OFF: Cruise control indicator turns off
      -
      Wheel Speed Sensor and Deceleration Sensor Speed sensor signal and deceleration sensor signal condition Avail or Not Avl Avail: Speed sensor signal and deceleration sensor signal available
      Not Avl: Speed sensor signal and deceleration sensor signal not available
      -
      Gradient of Road Surface - - - Cannot be used
    6. Radar Cruise 2:

      Read the Data List according to the display on the Techstream.

      Powertrain > Radar Cruise2 > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Total Distance Traveled - - - Cannot be used
      Total Distance Traveled - Unit - - - Cannot be used
      Cruise Control Main Switch Cruise control main switch status ON or OFF ON: Cruise control main switch pushed
      OFF: Cruise control main switch not pushed
      -
      Vehicle-to-vehicle Distance Control Switch Vehicle-to-vehicle distance control switch signal ON or OFF ON: Vehicle-to-vehicle distance control switch pushed
      OFF: Vehicle-to-vehicle distance control switch not pushed
      -
      Cruise Control Mode Cruise control mode signal Vehicle-to-vehicle Distance Control (All Speed), Vehicle-to-vehicle Distance Control (Hi Speed) or Constant Speed Control Vehicle-to-vehicle Distance Control (All Speed): Vehicle-to-vehicle distance control mode (w/ full-speed range following function)
      Vehicle-to-vehicle Distance Control (Hi Speed): Vehicle-to-vehicle distance control mode (w/o full-speed range following function)
      Constant Speed Control: Constant speed mode
      -
      Vehicle Speed Vehicle speed Min.: 0 km/h (0 mph), Max.: 327.67 km/h (204.79 mph) Actual vehicle speed -
      Yaw Rate Sensor Signal Yaw rate value Min.: -100.00 deg/s, Max.: 100.00 deg/s Actual yaw rate value -
      Steering Angle Signal Steering sensor signal Min.: -3072.0 deg, Max.: 3070.5 deg Increase: Turning left
      Decrease: Turning right
      -
      Zero Point of Steering Angle Memorized in Steering Angle Sensor Zero point steering angle sensor Min.: -3072.0 deg, Max.: 3070.5 deg Actual zero point steering angle -
      Estimated Vehicle Acceleration Estimated Vehicle Acceleration Min.: -5.00 m/s2 , Max.: 5.00 m/s2 Current value displayed -
      Accelerator Pedal Idle Accelerator pedal idle position signal ON or OFF ON: Accelerator pedal released
      OFF: Accelerator pedal depressed
      -
      Forward Vehicle Distance Distance to preceding vehicle Min.: 0 m, Max.: 255 m Current value displayed -
      Forward Vehicle Relative Speed Relative speed against preceding vehicle -128 to 127 km/h Current value displayed -
      Cruise Warning Request Forward vehicle approach warning signal ON or OFF ON: Forward vehicle approaching
      OFF: Forward vehicle not approaching
      -
      Radar Transmitting Millimeter wave radar sensor assembly operation signal ON or OFF ON: Millimeter wave radar sensor assembly signal sent
      OFF: Millimeter wave radar sensor assembly signal stopped
      -
      Vehicle Information (Conv/HV) Vehicle Information (Conv/HV) Unknown, Conv or HV - -
      Vehicle Information (Steering Wheel Position) Vehicle Information (Steering Wheel Position) Unknown, Left or Right - -
      Vehicle Information (Brake Type) Vehicle Information (Brake Type) Unknown, Other, V series of Except V3H or V3H - -
      Accelerator Over Ride Accelerator pedal position signal during cruising ON or OFF ON: Accelerator over ride ON
      OFF: Accelerator over ride OFF
      -
      Front Radar Sensor High Temperature Millimeter wave radar sensor assembly high temperature abnormality Normal or High Temperature Normal: Millimeter wave radar sensor assembly temperature is normal
      High Temperature: Millimeter wave radar sensor assembly temperature is high
      -
      Front Radar Sensor Low Voltage Millimeter wave radar sensor assembly low voltage abnormality Normal or Low Voltage Normal: Millimeter wave radar sensor assembly voltage is normal
      Low Voltage: Millimeter wave radar sensor assembly voltage is low
      -
      Radar Cruise Control System Malfunction Dynamic radar cruise control system warning indication Normal or Abnormal Normal: Dynamic radar cruise control system warning indication (Malfunction not detected)
      Abnormal: Dynamic radar cruise control system warning indication (Malfunction detected)
      -
  2. ACTIVE TEST 
    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 2 / Active Test.
    5. Perform the Active Test according to the display on the Techstream.

      Powertrain > Radar Cruise2 > Active Test 

      Tester Display Measurement Item Control Range Diagnostic Note
      Radar Cruise Proximity Warning Buzzer - - Cannot be used
      Radar Cruise Stop Keeping Announce Buzzer - - Cannot be used
    6. Enter the following menus: Body Electrical / Combination Meter / Active Test.
    7. Perform the Active Test according to the display on the Techstream.

      Body Electrical > Combination Meter > Active Test 

      Tester Display Measurement Item Control Range Diagnostic Note
      Multi Display All (White) Multi-information display (White display) ON -