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Home >> Toyota >> 2009 >> Tundra Base, 5.7 W >> Repair and Diagnosis >> External Pages >> Different car >> Section 86 (Cruise Control System) >> Dynamic Laser Cruise Control System >> Data List / Active Test
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Data List / Active Test

WARNING: This page is about a different car, the 2008 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
  1. READ 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.

    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Powertrain / Laser Cruise / Data List.
    5. Read the Data List according to the display on the Techstream.

      ECM (Laser Cruise) 

      ECM ITEM RANGE REFERENCE

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Accel Request Accelerator request signal / min.: -2621.44 k/h/s, max.: 2621.36 k/ h/s Actual demanded acceleration request -
      Vehicle Distance Laser radar sensor/ min.: 0 m (0 ft.), max.: 255 m (836.65 ft.) Distance to vehicle in front -
      L/C Option Flag Dynamic laser cruise option flag / No or Yes Yes: Dynamic laser cruise control system can be used
      No: Dynamic laser cruise control system cannot be used      		 -
      Car Dist Time Setting Vehicle distance time setting condition / Shrt, Mid, Long, No Vehicle-to-vehicle distance selected by steering pad switch (distance control switch) -
      O/D Cut Request O/D cut request / Not Req or Request Not Req: Idling -
      Shift Down Rqst to 3rd Shift down request to 3rd gear / Not Req or Request Not Req: Idling -
      Shift Down Rqst to 4th Shift down request to 4th gear / Not Req or Request Not Req: Idling -
      Shift Down Rqst to 5th Shift down request to 5th gear / Not Req or Request Not Req: Idling -
      Alarm Request Alarm request signal / Not Req or Request Request: When beeping
      Not Req: When not beeping      		 -
      All Throttle Close Rqst All throttle close request / Not Req or Request Request: All throttle close control active
      Not Req: All throttle close control not active      		 -
      Brake Control Request Brake control request / Not Req or Request Request: brake control active
      Not Req: brake control not active      		 -
      Targ Decl Slope Cruise target deceleration slope / 0.03, 0.06, 0.11, 0.15 0.03, 0.06, 0.11, 0.15 -
      CCS Vehicle Spd Vehicle speed sensor / min.: 0 km/h (0 mph), max.: 255 km/h (158 mph) Actual vehicle speed -
      CCS Mem Vehicle Spd Cruise control memorized speed / min.: 0 km/h (0 mph), max.: 200 km/h (125 mph) Memorized speed: Cruise control activated -
      Throttle Opening Angle Throttle opening angle / min.: 0°, max.: 125° Actual demanded throttle angle -
      Cruise Control Cruise control system active condition / ON or OFF ON: Cruise control activated
      OFF: Cruise control deactivated      		 -
      Main SW M-CPU Main switch signal (Main CPU) / ON or OFF ON: Main switch on
      OFF: Main switch off      		 "3"
      CCS Ready M-CPU Cruise control system standby condition (Main CPU) / ON or OFF Each time main switch is pushed, ON/OFF changes "1"
      CCS Indicator M-CPU Cruise indicator signal (Main CPU) / ON or OFF ON: "CRUISE" on
      OFF: "CRUISE" off      		 "2"
      Cancel Switch CANCEL switch signal / ON or OFF ON: CANCEL switch on
      OFF: CANCEL switch off      		 -
      SET/COAST Switch SET/COAST switch signal / ON or OFF ON: - (COAST)/SET switch on
      OFF: - (COAST)/SET switch off      		 -
      RES/ACC Switch RES/ACC switch signal / ON or OFF ON: + (ACCEL)/RES (RESUME) switch on
      OFF: + (ACCEL)/RES (RESUME) switch off      		 -
      Stp Light SW M-CPU Stop light switch signal (Main CPU) / ON or OFF ON: Brake pedal depressed
      OFF: Brake pedal released      		 -
      Cruise Operation Status Transmission range sensor signal / ON or OFF ON: Shift lever in D or S4 range
      OFF: Shift lever not in D or S4 range      		 -
      VSC Fail Safe Flag VSC fail-safe flag / ON or OFF ON: VSC communication fail safe in operation
      OFF: VSC communication fail safe not operation      		 -
      # Codes Number of DTC recorded / 0 to 255 0 -
      HINT:
      "3" is OK, but "1" is NG → ECM failure
      "1" is OK, but "2" is NG → DTC output or ECM failure
      "3" is OK, but cruise indicator does not turn on → Indicator, wire harness, or ECM failure
  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 ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: All ECUs / (desired system) / Active Test.
    5. Perform Active Test according to the display on the Techstream.

      HINT:

      The ignition switch must be turned on to proceed with the Active Test using the Techstream.

      ABS/VSC/TRAC 

      CONTROL RANGE REFERENCE

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

      Combination Meter 

      COMBINATION METER CONTROL RANGE

      Tester Display Test Part Control Range Diagnostic Note
      Indicat. Lamp Cruise "CRUISE" indicator light BLINK/OFF -
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