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Data List / Active Test [08/2013 - ]

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
  1. 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.

    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 Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus:
      1. for Pre-Collision: Body Electrical / Pre-Collision / Data List.
      2. for Pre-Collision 2: Body Electrical / Pre-Collision 2 / Data List.
    5. Read the Data List according to the display on the Techstream.

      HINT: 

      As the driving support ECU and seat belt control ECU both have Data List for the pre-collision system, be sure to check the Pre-Collision and Pre-Collision 2 Data Lists.

      PRE-COLLISION

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Driver Belt Control Seat belt control status of driver seat/
      UNSPPRT, STOP, ON or UNKNOWN      		 UNSPPRT: Seat belt control unsupported
      STOP: Control stopped
      ON: Controlled
      UNKNOWN: Indeterminate data      		 Seat belt (for driver) is fastened
      Passenger Belt Control Seat belt control status of passenger seat/
      UNSPPRT, STOP, ON or UNKNOWN      		 UNSPPRT: Seat belt control unsupported
      STOP: Control stopped
      ON: Controlled
      UNKNOWN: Indeterminate data      		 Seat belt (for passenger) is fastened
      Driver Buckle SW Buckle switch status of driver seat/
      UNKNOWN, UNSET, SET or ERROR      		 UNKNOWN: Indeterminate data
      UNSET: Driver seat belt unfastened
      SET: Driver seat belt fastened
      ERROR: Buckle switch malfunction      		 -
      Passenger Buckle SW Buckle switch status of passenger seat/
      UNKNOWN, UNSET, SET or ERROR      		 UNKNOWN: Indeterminate data
      UNSET: Passenger seat belt unfastened
      SET: Passenger seat belt fastened
      ERROR: Buckle switch malfunction      		 -
      Number of Trouble Codes Number of past trouble codes/min: 0, max: 255 Number of DTCs will be displayed -
      PRE-COLLISION 2

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Wiper Information Wiper operational status/
      Unoperat, Oil off, Mist, Washer, Unknown, Intermi, Lo or Hi      		 The respective operational status displayed Not Supported
      PCS OFF Switch Pre-collision system cancel switch assembly status/
      ON or OFF      		 ON: Pre-collision system cancel switch assembly on
      OFF: Pre-collision system cancel switch assembly off      		 -
      Pre-collision system Pre-collision system control/
      Valid or Inval      		 Valid: Pre-collision system control possible
      Inval: Pre-collision system control not possible      		 -
      PCS Indicator "CHECK PCS SYSTEM" display request signal/
      ON or OFF      		 ON: "CHECK PCS SYSTEM" display requested
      OFF: "CHECK PCS SYSTEM" display not requested      		 -
      PCS Disabled Indicator "PCS TEMPORARILY NOT AVAILABLE" display request signal/
      ON or OFF      		 ON: "PCS TEMPORARILY NOT AVAILABLE" display requested
      OFF: "PCS TEMPORARILY NOT AVAILABLE" display not requested      		 -
      Pre-Collision Safety Brake Ind Pre-collision system "BRAKE!" alert status/
      ON or OFF      		 ON: Pre-collision system "BRAKE!" alert on
      OFF: Pre-collision system "BRAKE!" alert off      		 -
      Pre-Collision Safety Warning Buz Pre-collision system warning buzzer/
      Valid or Inval      		 Valid: Pre-collision system warning buzzer operation possible
      Inval: Pre-collision system warning buzzer operation not possible      		 -
      Pre-Collision Brake Pre-collision brake function/
      Valid or Inval      		 Valid: Pre-collision brake operation possible
      Inval: Pre-collision brake operation not possible      		 -
      Front Radar PSB Front radar-linked pre-collision seat belt activation signal/
      ON or OFF      		 ON: Front radar-linked pre-collision seat belt activated
      OFF: Front radar-linked pre-collision seat belt not activated      		 Signal status changes when the pre-collision seat belt is activated before a crash
      PBA Start Pre-collision brake assist activation signal/
      ON or OFF      		 ON: Pre-collision brake assist activated
      OFF: Pre-collision brake assist not activated      		 Signal status changes when the pre-collision brake assist is activated before a crash
      (Pre-collision brake will activate only in situations where the driver depresses the brake pedal)
      Brake Assist Standby Supplemental brake pressure signal/
      ON or OFF      		 ON: Supplemental brake pressure being provided
      OFF: Supplemental brake pressure not being provided      		 Signal status changes when supplemental brake pressure is being provided after a crash is judged as unavoidable and before the brake pedal is depressed
      Pre-Collision Brake Control Pre-collision brake operational status/
      ON or OFF      		 ON: Pre-collision brake operating
      OFF: Pre-collision brake not operating      		 Status changes when pre-collision brake operates before a crash
      AVS Start AVS control activation status/
      ON or OFF      		 ON: AVS control activated
      OFF: AVS control not activated      		 Status changes when the suspension is controlled (stiffened) prior to a crash
      CCS Cancel Automatic cancellation of cruise control during Pre-collision brake activation/
      ON or OFF      		 ON: Cruise control automatically canceled
      OFF: Cruise control not automatically canceled      		 -
      Front Radar-Dirt History Millimeter wave radar sensor assembly dirt history/
      ON or OFF      		 ON: History of excessive dirt
      OFF: No history of excessive dirt      		 -
      Front Radar-Environment Hist Millimeter wave radar sensor assembly environment condition history/
      Good or Bad      		 Good: No history of excessive bad environment
      Bad: History of excessive bad environment      		 -
      Curr Com PCS-WIL-R Driver seat active headrest ECU connection status/
      with or without      		 with: Driver seat active headrest ECU connected
      without: Driver seat active headrest ECU not connected      		 Not Supported
      Curr Com PCS-WIL-L Front passenger seat active headrest ECU connection status/
      with or without      		 with: Front passenger seat active headrest ECU connected
      without: Front passenger seat active headrest ECU not connected      		 Not Supported
      Curr Com Night View ECU Night view ECU connection status/
      with or without      		 with: Night view ECU connected
      without: Night view ECU not connected      		 Not Supported
      Curr Com Front Camera Module Lane recognition camera sensor connection status / with or without with: Lane recognition camera sensor connected
      without: Lane recognition camera sensor not connected      		 -
      Country# (DSS) Destination country for driving support computer/
      JPN, NA, EURO, AUS, SAFC, OTHER, TWN, CHINA, THAI, GCC or NOFIX      		 Actual country code -
      The Number of DTCs Number of past trouble codes/min: 0, max: 255 Number of DTCs will be displayed -
  2. 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 power switch on (IG).
    3. Turn the Techstream on.
    4. Enter the following menus:
      1. for Pre-Collision: Body Electrical / Pre-Collision / Active Test.
      2. for ABS/VSC/TRAC: Chassis / ABS/VSC/TRAC / Active Test.
    5. Perform Active Test according to the display on the Techstream.

      HINT: 

      The power switch must be turned on (IG) to proceed with the Active Test using the Techstream.

      PRE-COLLISION

      Tester Display Test Part Control Range Diagnostic Note
      Driver Seat Belt Motor Driver seat belt motor ON / OFF Seat belt (for driver) is fastened
      Passenger Seat Belt Motor Passenger seat belt motor ON / OFF Seat belt (for passenger) is fastened
      Driver and Passenger Seat Belt Motor Driver and passenger seat belt motors ON / OFF Seat belts (for driver and passengers) are fastened
      Seat Belt Motor Backwards Operation Driver and passenger seat belt motor ON / OFF Seat belt (for driver and passenger) is operated backwards
      NOTE:
      • The seat belt motor will only operate when the tongue plate is inserted into the buckle (seat belt fastened).
      • To prevent overheating the belt motor, this test cannot be activated continuously. Operate the belt motor at an interval of 30 seconds or more.
      ABS/VSC/TRAC

      Tester Display Test Part Control Range Diagnostic Note
      DSS Signal Buzzer Skid control buzzer ON/OFF Buzzer can be heard
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