Lexus NX: Freeze Frame Data
FREEZE FRAME DATA
FREEZE FRAME DATA
NOTICE:
- It is difficult to show the specified values (judgment values) clearly because freeze frame data values change significantly due to differences in measurement conditions, surroundings, or vehicle conditions. For this reason, there may be a problem even when the values are within specifications.
- Turn the power switch on (IG) and park the vehicle on level ground. Check the freeze frame data by using the Techstream.
(a) Turn the power switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the power switch on (IG).
(d) Turn the Techstream on.
(e) Check the freeze frame data on the Techstream.
Chassis > EMPS| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Meter Vehicle Velocity | Vehicle speed from meter | Min.: 0.0 km/h (0.0 mph) Max.: 300.0 km/h (186.4 mph) |
| - |
| Motor Actual Current | Amount of current to motor | Min.: -327.68 A Max.: 327.67 A | Power switch on (READY) and steering wheel being turned: The value rises | - |
| Command Value Current | Requested current to motor | Min.: -327.68 A Max.: 327.67 A | Power switch on (READY) and steering wheel being turned: Value changes in proportion to steering effort -The value increases when turning left and decreases when turning right | - |
| Steering Angle Velocity | Steering angle speed | Min.: -32768 deg/s Max.: 32767 deg/s | Power switch on (READY) and steering wheel being turned: Value changes in proportion to steering speed -The value increases when turning left and decreases when turning right | - |
| Thermistor Temperature | ECU substrate temperature | Min.: -50.0°C (-58.0°F) Max.: 150.0°C (302.0°F) | Power switch on (READY): -50°C to 150°C (-58°F to 302°F) | - |
| PIG Power Supply | Power source voltage to active motor | Min.: 0.0000 V Max.: 20.1531 V | Always: 9 to 16 V | - |
| IG Power Supply | ECU power source voltage | Min.: 0.0000 V Max.: 20.1531 V | Power switch on (IG): 8 to 16 V | - |
| Steering Wheel Torque | Steering wheel torque | Min.: -327.68 Nm Max.: 7.00 Nm | Power switch on (READY) and steering wheel being turned: Value changes in proportion to steering effort -The value increases when turning left and decreases when turning right | - |
| Motor Rotation Angle | Motor rotation angle | Min.: 0.000 deg Max.: 1441.770 deg | Power switch on (READY) and steering wheel being turned: During steering operation, motor rotation angle value changes from 0 to 360 deg | - |
| Motor Voltage | Motor power supply voltage | Min.: 0.000 V Max.: 98.000 V | Power switch on (READY) and steering wheel being turned: 9 to 16 V | - |
| Motor Terminal Volt(U) | Motor terminal voltage (A phase) | Min.: 0.000 V Max.: 98.000 V | Power switch on (READY) and steering wheel being turned: Value changes within 4 to 35 V range | - |
| Motor Terminal Volt(V) | Motor terminal voltage (B phase) | Min.: 0.000 V Max.: 98.000 V | Power switch on (READY) and steering wheel being turned: Value changes within 4 to 35 V range | - |
| Motor Terminal Volt(W) | Motor terminal voltage (C phase) | Min.: 0.000 V Max.: 98.000 V | Power switch on (READY) and steering wheel being turned: Value changes within 4 to 35 V range | - |
| Torque Sensor 1 Output | Torque sensor voltage | Min.: 0.0000 V Max.: 4.9725 V |
| - |
| Torque Sensor 2 Output | Torque sensor voltage | Min.: 0.0000 V Max.: 4.9725 V |
| - |
| Battery Voltage | Auxiliary battery voltage | Min.: 0.0 V Max.: 25.5 V | Always: 9 to 16 V | - |
| PS Assist Signal | Power steering assist signal | ON or OFF |
| - |
| Ready Status | Ready status | OFF or Ready |
| - |
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DISASSEMBLY CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH and LH side.
The procedure listed below is for the LH side.
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