VARIABLE GEAR RATIO STEERING SYSTEM FREEZE FRAME DATA

Tech Tips

The VGRS system stores data when a trouble code is set which 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 engine 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 ECU)

      Vehicle speed (Skid control ECU)/

      Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph)

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

      Engine speed (rpm)/

      Less than 300 or 300 or more

      Engine stopped: Less than 300 rpm

      Engine running: 300 rpm or more

      		 -
      Mtr Power Source Cur.

      Motor power source actual current/

      Min.: 0 A, Max.: 127.5 A

      Steering wheel not turned: Below 1 A

      Steering wheel turned: 1 A or higher

      		 -
      PIG-Power Source Volt

      PIG power source voltage/

      Min.: 0 V, Max.: 25.5 V

      		 Engine switch on (IG): 11 to 14 V -
      IG-Power Source Volt

      IG power source voltage/

      Min.: 0 V, Max.: 25.5 V

      		 Engine switch on (IG): 11 to 14 V -
      Lock Motor Output Volt

      Lock motor output voltage/

      Min.: 0 V, Max.: 25.5 V

      		 Engine switch on (IG): 11 to 14 V -
      Command Value Duty

      Command duty value for PVM control/

      Min.: 0%, Max.: 100%

      VGRS system operating: 0 to 100%

      VGRS system not operating: 0%

      		 -
      Actuator Lock Duty Val

      Command duty value for actuator lock control/

      Min.: 0%, Max.: 100%

      		 Engine switch on (IG): Below 10% -
      Resolver Offset(SIN)

      Resolver offset (SIN)/

      Min.: 0, V Max.: 25.5 V

      Steering wheel turned: 0 to 16 V

      Steering wheel not turned: 0 V

      		 -
      Resolver Offset(COS)

      Resolver offset (COS)/

      Min.: 0, V Max.: 25.5 V

      Steering wheel turned: 0 to 16 V

      Steering wheel not turned: 0 V

      		 -
      Motor Current U

      Motor current U/

      Min.: -63 A, Max.: 64.5 A

      Steering wheel turned: 0 to 64.5 A

      Steering wheel not turned: 0 A

      		 -
      Motor Current V

      Motor current V/

      Min.: -63 A, Max.: 64.5 A

      Steering wheel turned: 0 to 64.5 A

      Steering wheel not turned: 0 A

      		 -
      Motor Current W

      Motor current W/

      Min.: -63 A, Max.: 64.5 A

      Steering wheel turned: 0 to 64.5 A

      Steering wheel not turned: 0 A

      		 -
      Motor Voltage

      Motor voltage/

      Min.: 0 V, Max.: 51 V

      VGRS system operating: 9 to 36 V

      VGRS system not operating: 0 V

      		 -
      Steering Pos 1

      Steering position/

      Min.: -2047 deg., Max.: 2048.94 deg.

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

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

      		 -
      Actuator Position

      Actuator position/

      Min.: -2047 deg., Max.: 2048.94 deg.

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

      Steering angle velocity/

      Min.: -2047 deg./s, Max.: 2048.94 deg./s

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

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

      		 -
      Actuator Target Angle 1

      Actuator target angle 1/

      Min.: -2047 deg., Max.: 2048.94 deg.

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

      Actuator target angle 2/

      Min.: -2047 deg., Max.: 2048.94 deg.

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

      Actuator revolution speed/

      Min.: -2047 deg./s, Max.: 2048.94 deg./s

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

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

      		 -
      Mode State

      Mode state/

      00, 01, 02, 03, 04, 05, 06, 07, 08, 09, 0A, 0B, 0C, 0D, 0E, 0F or 10

      		 - -