VARIABLE GEAR RATIO STEERING SYSTEM FREEZE FRAME DATA

Tech Tips

The VGRS system stores data when a trouble code is set and can be viewed using the intelligent tester.


  1. FREEZE FRAME DATA OF STEERING CONTROL ECU


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch ON (IG) and check the freeze frame data by following the prompts on the tester screen.

      VGRS:
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Vehicle Speed (Vsc)

      Vehicle speed (Skid control ECU)/

      Min.: 0 km/h, Max.: 255 km/h

      		 Actual vehicle speed (Speed indicated on speedometer) -
      Engine ReVolution (Rpm)

      Engine revolution (rpm)/

      Und 300 or Ovr 300

      Engine is stopped: Und 300 rpm

      Engine is running: Ovr 300 rpm

      		 -
      Mtr Power Source Cur.

      Motor power source actual current/

      Min.: 0.0 A, Max.: 127.5 A

      Steering wheel is not turned: Below 1 A

      Steering wheel is turned: 1 A or higher

      		 -
      PIG-Power Source Volt

      PIG power source voltage/

      Min.: 0.0 V, Max.: 25.5 V

      Power switch ON (IG): 11 to 14 V

      Power switch OFF: 0 V

      		 -
      IG-Power Source Volt

      IG power source voltage/

      Min.: 0.0 V, Max.: 25.5 V

      Power switch ON (IG): 11 to 14 V

      Power switch OFF: 0 V

      		 -
      Lock Motor Output Volt

      Lock motor output voltage/

      Min.: 0.0 V, Max.: 25.5 V

      Power switch ON (IG): 11 to 14 V

      Power switch OFF: 0 V

      		 -
      Command Value Duty

      Command value DUTY for PVM control/

      Min.: 0%, Max.: 100%

      VGRS system operating: 0 to 100%

      VGRS system not operating: 0%

      		 -
      Actuator Lock Duty Val

      Command value DUTY for actuator lock control/

      Min.: 0%, Max.: 100%

      		 Power switch ON (IG): Below 10% -
      Resolver Offset(SIN)

      Resolver offset (SIN)/

      Min.: 0.0 V Max.: 25.5 V

      Steering wheel is turned: 0 to 16 V

      Steering wheel is not turned: 0 V

      		 -
      Resolver Offset(COS)

      Resolver offset (COS)/

      Min.: 0.0 V Max.: 25.5 V

      Steering wheel is turned: 0 to 16 V

      Steering wheel is not turned: 0 V

      		 -
      Motor Current U

      Motor current U/

      Min.: -63.0 A, Max.: 64.5 A

      Steering wheel is turned: 0 to 64.5 A

      Steering wheel is not turned: 0 A

      		 -
      Motor Current V

      Motor current V/

      Min.: -63.0 A, Max.: 64.5 A

      Steering wheel is turned: 0 to 64.5 A

      Steering wheel is not turned: 0 A

      		 -
      Motor Current W

      Motor current W/

      Min.: -63.0 A, Max.: 64.5 A

      Steering wheel is turned: 0 to 64.5 A

      Steering wheel is not turned: 0 A

      		 -
      Motor Voltage

      Motor voltage/

      Min.: 0.0 V, Max.: 51.0 V

      VGRS system operating: 9 to 36 V

      VGRS system not operating: 0 V

      		 -
      Steering Pos 1

      Steering position/

      Min.: -2047.0000 deg., Max.: 2048.9375 deg.

      Steering wheel is turned to right: Display value changes in negative direction

      Steering wheel is turned to left: Display value changes in positive direction

      		 -
      Actuator Position

      Actuator position/

      Min.: -2047.0000 deg., Max.: 2048.9375 deg.

      		 Steering wheel is turned: -2047 to 2048.94 deg. -
      Steering Angle Velocity

      Steering angle velocity/

      Min.: -2047.0000 deg./s, Max.: 2048.9375 deg./s

      Steering wheel is turned to right: Display value changes in negative direction

      Steering wheel is turned to left: Display value changes in positive direction

      		 -
      Actuator Target Angle 1

      Actuator target angle 1/

      Min.: -2047.0000 deg., Max.: 2048.9375 deg.

      		 Steering wheel is turned: -2047 to 2048.94 deg. -
      Actuator Target Angle 2

      Actuator target angle 2/

      Min.: -2047.0000 deg., Max.: 2048.9375 deg.

      		 Steering wheel is turned: -2047 to 2048.94 deg. -
      Actuator ReVolution Spd

      Actuator revolution speed/

      Min.: -2047.0000 deg./s, Max.: 2048.9375 deg./s

      Steering wheel is turned to right: Display value changes in negative direction

      Steering wheel is turned to left: Display value changes in positive direction

      		 -