LANE-KEEPING ASSIST SYSTEM DATA LIST / ACTIVE TEST


  1. DATA LIST

    Tech Tips

    Using the intelligent tester to read the Data List allows 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. Connect the intelligent tester to the DLC3.

    2. Turn the power switch ON (IG).

    3. Turn the intelligent tester on.

    4. Entire the following menus: All ECUs / (desired menu) / Data List.

    5. According to the display on the intelligent tester, read the Data List.

      Radar Cruise
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Country# (DSS) Driving support ECU country signal/JPN, NA, EURO AUS, SAFC, OTHER, TWN, CHINA, THAI, GCC, NOFIX EURO AUS, SAFC, OTHER, TWN, CHINA, THAI or GCC -
      Country# (Obj Recog ECU) Object recognition ECU country signal/JPN, NA, EURO AUS, SAFC, OTHER, TWN, CHINA, THAI, GCC, NOFIX EURO AUS, SAFC, OTHER, TWN, CHINA, THAI or GCC -
      LKA Main SW Lane-keeping assist main switch signal/ON or OFF

      ON: Lane-keeping assist main switch is on

      OFF: Lane-keeping assist main switch is off

      		 -
      Communication with Object Recognition ECU Communication with object recognition ECU signal/AVAIL or FAIL

      AVAIL: Communication is normal

      FAIL: Communication is abnormal

      		 -
      Lane Keep Assist
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Wiper Information Wiper operational status/Unoperat, Oil off, Mist, Washer, Unknown, Intermittent, Lo, Hi The respective operational status displayed -
      Head Light Information Headlight operational status/Unknown, Fail, Prohibited, Direct, Hi, Passing, Fail The respective operational status displayed -
      LKA Indicator LKA indicator light signal/Nothing, Light or Blink

      Light: LKA indicator light turns on

      Nothing: LKA indicator light turns off

      Blink: LKA indicator light blinking

      		 -
      LKA System Indicator Lane-keeping assist system indicator/Unknown, Check, Disable, Adjust - -
      Left Lane Type Left lane type signal / Dashed or Solid

      Dashed: Left lane dashed

      Solid: Left lane solid

      		 -
      Right Lane Type Right lane type signal / Dashed or Solid

      Dashed: Right lane dashed

      Solid: Right lane solid

      		 -
      Lane Undetectable Lane undetectable signal / Undetectable or Detect

      Undetectable: Lane undetectable

      Detect: Lane detected

      		 -
      Left Lane Detection Left lane detection signal / Undetectable or Detect

      Undetectable: Left lane undetectable

      Detect: Left lane detected

      		 -
      Right Lane Detection Right lane detection signal / Undetectable or Detect

      Undetectable: Right lane undetectable

      Detect: Right lane detected

      		 -
      Left Lane Change Left lane change signal / ON or OFF

      ON: When left lane change is performed

      OFF: When left lane change is not performed

      		 -
      Right Lane Change Right lane change signal / ON or OFF

      ON: When right lane change is performed

      OFF: When right lane change is not performed

      		 -
      Lane Position Lane position / min.: -327.68 m, max.: 327.67 m Actual lane position -
      Lane Width Lane width / min.: 0 m, max.: 655.35 m Actual lane width -
      Small Steering Force Demand Small steering force demand signal / ON or OFF

      ON: Steering assist function operates

      OFF: Steering assist function does not operate

      		 -
      Lane-Keeping Assist Demand Lane-keeping assist demand signal / ON or OFF

      ON: Lane-keeping assist function operates

      OFF: Lane-keeping assist function does not operate

      		 -
      Skid Control Buzzer Demand Skid control buzzer demand signal / ON or OFF

      ON: Skid control buzzer sounds

      OFF: Skid control buzzer does not sound

      		 -
      Target Steering Wheel Torque Target steering wheel torque / min.: -100 N*m, max.: 100 N*m Actual steering wheel torque -
      Left Lane Indicator Left lane recognition signal / Nothing, Heavy, Closing or H blink

      Nothing: Left lane indicator is not shown

      Heavy: Left lane indicator is fully shown

      Closing: Only left lane indicator outline is shown

      H blink: Left lane indicator is blinking

      		 -
      Right Lane Indicator Right lane recognition signal / Nothing, Heavy, Closing or H blink

      Nothing: Right lane indicator is not shown

      Heavy: Right lane indicator is fully shown

      Closing: Only right lane indicator outline is shown

      H blink: Right lane indicator is blinking

      		 -
      Steering Indicator Meter display signal of lane-keeping assist function/ Nothing, Light or Blink

      Nothing: Steering wheel assistance is not displayed

      Light: Steering wheel assistance is displayed

      Blink: Steering wheel assistance is blinking

      		 -
      LKA Abnormal Buzzer Lane-keeping assist system abnormal buzzer signal / ON or OFF

      ON: Lane-keeping assist system abnormal

      OFF: Lane-keeping assist system normal

      		 -
      Lane Detection Impossible Buz Lane-keeping detection impossible buzzer signal / ON or OFF

      ON: Lane-keeping detection impossible buzzer sounds

      OFF: Lane-keeping detection impossible buzzer does not sound

      		 -
      Ready Indicator Ready indicator light signal/Nothing, Light or Blink

      Nothing: Ready indicator turns on

      Light: Ready indicator turns blinking

      Blink: Ready indicator turns off

      		 -
      Target Horizontal Position 1 Target horizontal position / min.: -40.96 m, max.: 40.92 m Actual target horizontal position -
      Target Horizontal Position 2 Target horizontal position / min.: -40.96 m, max.: 40.92 m Actual target horizontal position -
      Target Distance 1 Target distance / min.: 0 m, max.: 327.64 m Actual target distance -
      Target Distance 2 Target distance / min.: 0 m, max.: 327.64 m Actual target distance -
      LKA Temporarily Disabled Lane-keeping assist temporarily disabled signal / ON or OFF

      ON: Lane-keeping assist system is temporarily disabled

      OFF: Lane-keeping assist system is operable

      		 -
      The Number of DTCs Number of DTCs / min.: 0, max.: 255 Actual number of DTCs -
      Steering Pad Switch
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Lane Keep Assist SW Lane-keeping assist main switch signal / ON or OFF

      ON: Lane-keeping assist main switch is ON

      OFF: Lane-keeping assist main switch is OFF

      		 -

  2. ACTIVE TEST

    Tech Tips

    Using the intelligent tester 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 intelligent tester to the DLC3.

    2. Turn the power switch ON (IG).

    3. Turn the intelligent tester on.

    4. Entire the following menus: All ECUs / (desired system) / Active Test.

    5. According to the display on the intelligent tester, perform the Active Test.

      Pre-Crash 2
      Tester Display Test Part Control Range Diagnostic Note
      Infrared Signal Status Near infrared ray filter operates ON/OFF -
      Combination Meter
      Tester Display Test Part Control Range Diagnostic Note
      Drift From The Lane LKA indicator light ON/OFF ON/OFF -
      ABS/VSC/TRC
      Tester Display Test Part Control Range Diagnosis Note
      Buzzer Skid control buzzer sounds ON/OFF -