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Home >> Lexus >> 2009 >> LS 600hL >> Repair and Diagnosis >> External Pages >> Different car >> Section 21 (Steering Column) >> Variable Gear Ratio Steering System >> Freeze Frame Data
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Freeze Frame Data

WARNING: This page is about a different car, the 2008 Lexus LS 600hL. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

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

  1. FREEZE FRAME DATA OF STEERING CONTROL ECU 
    1. Connect the Intelligent tester or Techstream to the DLC3.
    2. Turn the power switch ON (IG) and check the freeze frame data by following the prompts on the tester screen
      1. Intelligent tester
        DIAGNOSTIC NOTE

        Tester Display Measurement Item/Range Normal Condition
        SPD (VSC) Vehicle speed (VSC ECU)/ Min 0 km/h, Max 255 km/h Actual vehicle speed (Speed indicated on speedometer)
        ENGINE REV (RPM) Engine revolution (rpm)/ Below 300 or 300 or higher Engine is stopped Below 300 rpm
        Engine is running 300 rpm or higher
        MTR SOURCE CUR Motor power source actual current/ Min 0A, Max 127 5 A Steering wheel is not turned Below 1 A
        Steering wheel is turned 1 A or higher
        PIG SOURCE VOL PIG power source voltage/ Min 0 V, Max 25 5 V Power switch ON (IG). 11 to 14 V
        Power switch OFF 0 V
        IG SOURCE VOL IG power source voltage/ Min 0 V, Max 25 5 V Power switch ON (IG) 11 to 14 V
        Power switch OFF 0 V
        LOCK OUTPUT VOL Lock motor output voltage/ Min 0 V, Max 25 5 V Power switch ON (IG) 11 to 14 V
        Power switch OFF 0 V
        DUTY VAL Command value DUTY for PVM control/ Min 0%, Max 100% VGRS system operating 0 to 100%
        VGRS system not operating 0%
        LOCK DUTY VAL Command value DUTY for actuator lock control/ Min 0%, Max 100% Power switch ON (IG) Below 10%
        RES OFFSET (SIN) Resolver offset (SIN)/ Min 0, V Max 25 5 V Steering wheel is turned 0 to 16 V
        Steering wheel is not turned 0 V
        RES OFFSET (COS) Resolver offset (COS)/ Min 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 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 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 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 V, Max 51 VGRS system operating 9 to 36 V
        VGRS system not operating 0 V
        STEERING POS1 Steering position/ Min -2047 deg, Max 2048 94 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 POS Actuator position/ Min -2047 deg, Max 2048 94 deg Steering wheel is turned -2047 to 2048 94 deg
        STR ANGL VEL Steering angle velocity/ Min -2047 deg/s, Max 2048 94 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
        ACT TARGET ANG 1 Actuator target angle 1/ Min -2047 deg, Max 2048 94 deg Steering wheel is turned -2047 to 2048 94 deg
        ACT TARGET ANG 2 Actuator target angle 2/ Min. -2047 deg, Max 2048 94 deg Steering wheel is turned -2047 to 2048 94 deg
        ACT REV SPD Actuator revolution speed/ Min -2047 deg Is, Max 2048 94 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
      2. Techstream
        DIAGNOSTIC NOTE

        Tester Display Measurement Item/Range Normal Condition
        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)/ Below 300 or 300 or higher Engine is stopped Below 300 rpm
        Engine is running 300 rpm or higher
        Mtr Power Source Cur Motor power source actual current/ Min 0A, 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 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 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 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, 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, 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 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 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 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 V, Max 51 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 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 deg, Max 2048 94 deg Steering wheel is turned -2047 to 2048 94 deg
        Steering Angle Velocity Steering angle velocity/ Min -2047 deg/s, Max 2048 94 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 deg, Max 2048 94 deg Steering wheel is turned -2047 to 2048 94 deg
        Actuator Target Angle 2 Actuator target angle 2/ Min -2047 deg, Max 2048 94 deg Steering wheel is turned -2047 to 2048 94 deg
        Actuator Revolution Spd Actuator revolution speed/ Min -2047 deg Is, Max 2048 94 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
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