LEXUS PARKING ASSIST-SENSOR SYSTEM DATA LIST / ACTIVE TEST


  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.

    Tech Tips

    Using the GTS 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 GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the LEXUS parking assist-sensor system on.

    4. Turn the GTS on.

    5. Enter the following menus: Body Electrical / Clearance Sonar / Data List.

    6. According to the display on the GTS, read the Data List.

      Clearance Sonar
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Main Switch LEXUS parking assist-sensor system (Multi-information switch) / OFF or ON

      OFF: LEXUS parking assist-sensor system off

      ON: LEXUS parking assist-sensor system on

      		 -
      Clearance Sonar ECU Type Type of clearance sonar ECU / Normal Normal: Normal clearance sonar type -
      Fr Left Sensor Front left sensor information / Undetect, Close R, Mid Y, Mid L Y, Freeze, Open or Blink

      Undetect: No obstacle detected

      Close R: Obstacle detected (Close-range) [Red]

      Mid Y: Obstacle detected (Medium-range) [Yellow]

      Mid L Y: Obstacle detected (Long-range) [Yellow]

      Freeze: Sensor frozen

      Open: Open in sensor

      Blink: All displays blinking

      		 -
      Fr Left Center Sensor Front left center sensor information / Undetect, Close R, Mid Y, Mid L Y, Freeze, Open or Blink

      Undetect: No obstacle detected

      Close R: Obstacle detected (Close-range) [Red]

      Mid Y: Obstacle detected (Medium-range) [Yellow]

      Mid L Y: Obstacle detected (Long-range) [Yellow]

      Freeze: Sensor frozen

      Open: Open in sensor

      Blink: All displays blinking

      		 -
      Fr Right Center Sensor Front right center sensor information / Undetect, Close R, Mid Y, Mid L Y, Freeze, Open or Blink

      Undetect: No obstacle detected

      Close R: Obstacle detected (Close-range) [Red]

      Mid Y: Obstacle detected (Medium-range) [Yellow]

      Mid L Y: Obstacle detected (Long-range) [Yellow]

      Freeze: Sensor frozen

      Open: Open in sensor

      Blink: All displays blinking

      		 -
      Fr Right Sensor Front right sensor information / Undetect, Close R, Mid Y, Mid L Y, Freeze, Open or Blink

      Undetect: No obstacle detected

      Close R: Obstacle detected (Close-range) [Red]

      Mid Y: Obstacle detected (Medium-range) [Yellow]

      Mid L Y: Obstacle detected (Long-range) [Yellow]

      Freeze: Sensor frozen

      Open: Open in sensor

      Blink: All displays blinking

      		 -
      Rr Left Sensor Rear left sensor information / Undetect, Close R, Mid Y, Mid L Y, Freeze, Open or Blink

      Undetect: No obstacle detected

      Close R: Obstacle detected (Close-range) [Red]

      Mid Y: Obstacle detected (Medium-range) [Yellow]

      Mid L Y: Obstacle detected (Long-range) [Yellow]

      Freeze: Sensor frozen

      Open: Open in sensor

      Blink: All displays blinking

      		 -
      Rr Left Center Sensor Rear left center sensor information / Undetect, Close R, Mid Y, Mid L Y, Long Y, Freeze, Open or Blink

      Undetect: No obstacle detected

      Close R: Obstacle detected (Close-range) [Red]

      Mid Y: Obstacle detected (Medium-range) [Yellow]

      Mid L Y: Obstacle detected (Long-range) [Yellow]

      Long Y: Obstacle detected (Longest-range) [Yellow]

      Freeze: Sensor frozen

      Open: Open in sensor

      Blink: All displays blinking

      		 -
      Rr Right Center Sensor Rear right center sensor information / Undetect, Close R, Mid Y, Mid L Y, Long Y, Freeze, Open or Blink

      Undetect: No obstacle detected

      Close R: Obstacle detected (Close-range) [Red]

      Mid Y: Obstacle detected (Medium-range) [Yellow]

      Mid L Y: Obstacle detected (Long-range) [Yellow]

      Long Y: Obstacle detected (Longest-range) [Yellow]

      Freeze: Sensor frozen

      Open: Open in sensor

      Blink: All displays blinking

      		 -
      Rr Right Sensor Rear right sensor information / Undetect, Close R, Mid Y, Mid L Y, Freeze, Open or Blink

      Undetect: No obstacle detected

      Close R: Obstacle detected (Close-range) [Red]

      Mid Y: Obstacle detected (Medium-range) [Yellow]

      Mid L Y: Obstacle detected (Long-range) [Yellow]

      Freeze: Sensor frozen

      Open: Open in sensor

      Blink: All displays blinking

      		 -
      Fr Sensor Onset Range Buzzer activation range (for front center sensors) / Narrow or Wide

      Narrow: 600 mm (23.62 in.)

      Wide: 1500 mm (59.06 in.)

      		 The customized value is displayed.
      Rr Sensor Onset Range Buzzer activation range (for rear center sensors) / Narrow or Wide

      Narrow: 600 mm (23.62 in.)

      Wide: 1500 mm (59.06 in.)

      		 The customized value is displayed.
      Keep Sense Buzzer Continuous buzzer operation / Not Avail or Avail

      Not Avail: Buzzer stops

      Avail: Buzzer sounds continuously

      		 The customized value is displayed.
      Fr & Rr Buzzer Volume Buzzer volume setting / L, M1, M2, M3 or H

      L: Low volume

      M1: Medium low volume

      M2: Medium volume

      M3: Medium high volume

      H: High volume

      		 The customized value is displayed.
      Reverse Range Front Sensor Operation setting for front sensors / F or F Stop

      F: Front sensors operate

      F Stop: Front sensors disabled

      		 The customized value is displayed.
      Non P/R Range Rear Sensor Operation setting for rear sensors (rear center, rear corner) / R, Rcrn or R Stop

      R: All rear sensors operate

      Rcrn: Rear corner sensors operate

      R Stop: All rear sensors disabled

      		 The customized value is displayed.
      Sensor Condition N Front sensor operation / Not Avail or Avail

      Not Avail: Front sensors not available

      Avail: Front sensors available

      		 The customized value is displayed.
      Display Mode Display mode setting / All or Undisp

      All: Display displays all sensors

      Undisp: Display does not display

      		 The customized value is displayed.
      Parking Signal Park signal / OFF or ON

      OFF: Shift lever in any position except P

      ON: Shift lever in P

      		 -
      Reverse Signal Reverse signal / OFF or ON

      OFF: Shift lever in any position except R

      ON: Shift lever in R

      		 -
      Vehicle Speed Info Vehicle speed signal / Snr Stop or Snr Work

      Snr Stop: Vehicle speed 15 km/h (9.3 mph) or more (when accelerating) or 10 km/h (6.2 mph) or more (when decelerating)

      Snr Work: Vehicle speed less than 15 km/h (9.3 mph) (when accelerating) or less than 10 km/h (6.2 mph) (when decelerating)

      		 -
      Sonar Detection Sonar detection condition / Stop or Work

      Stop: Sonar detection not operating

      Work: Sonar detection operating

      		 -
      Clearance Sonar ECU ECU information / Normal or Abnormal

      Normal: ECU normal

      Abnormal: ECU not normal

      		 -
      Rr Right Freezed History Rear right sensor frozen history / Not Rec or Recorded

      Not Rec: No record of sensor freezing

      Recorded: Record of sensor freezing

      		 -
      Rr Right Center Freezed History Rear right center sensor frozen history / Not Rec or Recorded

      Not Rec: No record of sensor freezing

      Recorded: Record of sensor freezing

      		 -
      Rr Left Center Freezed History Rear left center sensor frozen history / Not Rec or Recorded

      Not Rec: No record of sensor freezing

      Recorded: Record of sensor freezing

      		 -
      Rr Left Freezed History Rear left sensor frozen history / Not Rec or Recorded

      Not Rec: No record of sensor freezing

      Recorded: Record of sensor freezing

      		 -
      Fr Right Freezed History Front right sensor frozen history / Not Rec or Recorded

      Not Rec: No record of sensor freezing

      Recorded: Record of sensor freezing

      		 -
      Fr Right Center Freezed History Front right center sensor frozen history / Not Rec or Recorded

      Not Rec: No record of sensor freezing

      Recorded: Record of sensor freezing

      		 -
      Fr Left Center Freezed History Front left center sensor frozen history / Not Rec or Recorded

      Not Rec: No record of sensor freezing

      Recorded: Record of sensor freezing

      		 -
      Fr Left Freezed History Front left sensor frozen history / Not Rec or Recorded

      Not Rec: No record of sensor freezing

      Recorded: Record of sensor freezing

      		 -
      AT/MT Recognition Transmission information / AT, MT or Unknown

      AT: Automatic Transmission

      MT: Manual Transmission

      Unknown: Unknown

      		 -
      # Codes Number of stored trouble codes / min.: 0, max.: 255 Number of DTCs stored -

  2. ACTIVE TEST

    Tech Tips

    Using the GTS 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 GTS to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the LEXUS parking assist-sensor system on.

    4. Turn the GTS on.

    5. Enter the following menus: Body Electrical / Clearance Sonar / Active Test.

    6. According to the display on the GTS, perform the Active Test.

      Clearance Sonar
      Tester Display Test Part Control Range Diagnostic Note
      Buzzer Clearance warning buzzer Operate or Stop Confirm that the vehicle is stopped and the engine switch is on (IG)