Lexus LX - Variable Gear Ratio Steering System Freeze Frame Data; Freeze Frame Data of Steering Control ECU

VARIABLE GEAR RATIO STEERING SYSTEM > FREEZE FRAME DATA
for Preparation Click here
HINT:
The VGRS system stores data when a trouble code is stored which can be viewed using the intelligent tester.
FREEZE FRAME DATA OF STEERING CONTROL ECU
a. Connect the intelligent tester to the DLC3.
b. 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
-