DYNAMIC TORQUE CONTROL 4WD/AWD SYSTEM DATA LIST / ACTIVE TEST

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. DATA LIST OF 4WD ECU ASSEMBLY


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Chassis / Four Wheel Drive / Data List.

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


      Chassis > Four Wheel Drive > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      4WD Warning Light

      4WD/AWD warning Light*1

      4WD/AWD warning (multi-information display)*2

      		 OFF or ON

      OFF: Warning light off*1

      OFF: Warning off*2

      ON: Warning light on*1

      ON: Warning on*2

      		 -
      4WD LOCK Light 4WD/AWD lock mode indicator light OFF or ON

      OFF: 4WD/AWD lock mode indicator light off

      ON: 4WD/AWD lock mode indicator light on

      		 -
      Stop Light SW Stop light switch OFF or ON

      OFF: Brake pedal released

      ON: Brake pedal depressed

      		 -
      4WD LOCK Switch 4WD/AWD lock switch OFF or ON

      OFF: Auto mode

      ON: Lock mode

      		 -
      Lateral G Lateral G

      Min.: -25.10 m/s2

      max.: 24.90 m/s2

      		- Changes in proportion with acceleration during turning.
      Forward and Rearward G Forward and Rearward G

      Min.: -25.10 m/s2

      Max.: 24.90 m/s2

      Approximately 0 +/-0.13 m/s2while stationary

      		 Changes in proportion with acceleration during acceleration/deceleration.
      Yaw Rate Value Yaw rate value

      Min.: -128°/s

      Max.: 127°/s

      		 - Changes in proportion with yaw during turning.
      Steering Angle Value Steering angle value

      Min.: -3276.8°

      Max.: 3276.7°

      Left turn: Increase

      Right turn: Decrease

      		 Changes in proportion with the amount of steering wheel rotation during steering operation.
      FR Wheel Speed Front wheel speed sensor RH reading

      Min.: 0 km/h (0 mph)

      Max.: 326 km/h (202 mph)

      		 Vehicle stopped: 0 km/h (0 mph) No large fluctuations when driving at a constant speed.
      FL Wheel Speed Front wheel speed sensor LH reading

      Min.: 0 km/h (0 mph)

      Max.: 326 km/h (202 mph)

      		 Vehicle stopped: 0 km/h (0 mph) No large fluctuations when driving at a constant speed.
      RR Wheel Speed Rear wheel speed sensor RH reading

      Min.: 0 km/h (0 mph)

      Max.: 326 km/h (202 mph)

      		 Vehicle stopped: 0 km/h (0 mph) No large fluctuations when driving at a constant speed.
      RL Wheel Speed Rear wheel speed sensor LH reading

      Min.: 0 km/h (0 mph)

      Max.: 326 km/h (202 mph)

      		 Vehicle stopped: 0 km/h (0 mph) No large fluctuations when driving at a constant speed.
      Engine Coolant Temperature Engine coolant temperature

      Min.: 0°C (32°F)

      Max.: 127.5°C (261.5°F)

      		 Actual engine coolant temperature is displayed -
      Ambient Temperature Vehicle ambient temperature

      Min.: -128°C (-198.4°F)

      Max.: 127°C (260.6°F)

      		 Actual ambient temperature is displayed -
      Inspection Mode Inspection mode Other or Inspect

      Other: Normal mode

      Inspect: Inspection mode

      		 -
      SLC Solenoid Current SLC solenoid (4WD linear solenoid) current

      Min.: 0 A

      Max.: 3 A

      		 0 to 3 A -
      Number of DTC Number of DTC recorded 0 to 255 0 -

      • *1: for Segment Display Type

      • *2: for TFT Display Type

  2. ACTIVE TEST OF 4WD ECU ASSEMBLY

    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 ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Chassis / Four Wheel Drive / Active Test.

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


      Chassis > Four Wheel Drive > Active Test
      Tester Display Measurement Item Control Range Diagnostic Note
      4WD Warning Light

      4WD/AWD warning light*1

      4WD/AWD warning (multi-information display)*2

      Warning light ON/OFF*1

      Warning ON/OFF*2

      		 Observe combination meter assembly
      4WD LOCK Light 4WD/AWD lock mode indicator light Indicator light OFF/ON Observe combination meter assembly

      • *1: for Segment Display Type

      • *2: for TFT Display Type