Lexus IS250 IS220d GSE20 ALE20 - POWER STEERING
ELECTRONIC POWER STEERING SYSTEM - DATA LIST / ACTIVE TEST
| DATA LIST |
- HINT:
- By accessing the Data List displayed on the intelligent tester, values of switches, sensors and other related parts can be checked without removing any parts. Reading the Data List is the first step of troubleshooting and is one method to shorten labor time.
Connect the intelligent tester to the DLC3.
Turn the engine switch on (IG).
Operate the intelligent tester according to the steps on the display and select the Data List.
| Item | Item Description/Range (Display) | Inspection Condition | Reference Value |
| Trq1 | Torque sensor 1 rotation angle/ Min.: 0 deg, Max.: 360 deg | Steering wheel is turned | Value changes from 0 to 360° every 22.5° of steering angle |
| Trq2 | Torque sensor 2 rotation angle/ Min.: 0 deg, Max.: 360 deg | Steering wheel is turned | Value changes from 0 to 360° every 22.5° of steering angle |
| Engine Speed | Vehicle speed from meter/ Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph) | Vehicle is stopped Vehicle is driven at a constant speed | 0 km/h (0 mph) No significant fluctuation |
| Engine Rev | Engine revolution/ Min.: 0 rpm, Max.: 8,192 rpm | Engine is running at a constant speed | No significant fluctuation |
| Motor Actual | Amount of current to motor/ Min.: -128 A, Max.: 127 A | Power steering is in operation | Value changes in proportion to steering effort |
| Command Value | Demanded amount of current to motor/ Min.: -128 A, Max.: 127 A | Power steering is in operation | Value changes in proportion to steering effort |
| Str Angl Vel | Steering angle speed/ Min.: -4,096 deg/sec, Max.: 4,064 deg/sec | Steering wheel is turned | Value changes in proportion to steering speed |
| Thermistor Temp | ECU substrate temperature/ Min.: -50°C, Max.: 205°C | Engine switch on (IG) | - |
| PIG Supply | Power source voltage to activate motor/ Min.: 0 V, Max.: 25.5 V | Power steering is in operation | 10 to 14 V |
| IG Supply | ECU power source voltage/ Min.: 0 V, Max.: 25.5 V | Engine switch on (IG) | 10 to 14 V |
| Trq1 Zero Val | Zero point value of torque sensor 1/ Min.: 0 deg, Max.: 360 deg | Steering wheel is not turned (without load) | Values differ depending on vehicle |
| Trq2 Zero Val | Zero point value of torque sensor 2/ Min.: 0 deg, Max.: 360 deg | Steering wheel is not turned (without load) | Values differ depending on vehicle |
| Steering Torque | Steering torque/ Min.: -7.0 N*m, Max.: 7.0 N*m | Steering wheel is turned | Value changes in proportion to steering effort |
| Motor Rotate | Motor rotation angle/ Min.: 0 deg, Max.: 360 deg | Steering wheel is turned | Value changes from 0 to 360° every 5° of steering angle |
| Command Value 2 | Amount of current demanded by motor 2/ Min.: -128 A, Max.: 127 A | - | - |
| PIG2 Voltage | Motor drive voltage after pressurization | Power steering is in operation | 27 to 34 V |
| Motor Voltage | Motor power source voltage/ Min.: 0 V, Max.: 64 V | Power steering is in operation | 27 to 34 V |
| Mtr Terminal (U) | Motor terminal voltage (U phase)/ Min.: 0 V, Max.: 64 V | Power steering is in operation | 0 to 34 V |
| Mtr Terminal (V) | Motor terminal voltage (V phase)/ Min.: 0 V, Max.: 64 V | Power steering is in operation | 0 to 34 V |
| Mtr Terminal (W) | Motor terminal voltage (W phase)/ Min.: 0 V, Max.: 64 V | Power steering is in operation | 0 to 34 V |
| Str Sens Sig | Steering angle sensor signal status/ OK or NG | - | - |
| Mtr Overheat | Continuous overheat prevention control record/ REC or UNREC | - | - |
| Mtr Low Power | PIG power source voltage drop record/ REC or UNREC | - | - |
| Eng Rev Inter | Record of engine revolution signal interruption/ REC or UNREC | - | - |
| Str Angl Inter | Record of steering angle sensor signal interruption/ REC or UNREC | - | - |
| Spd Sig Invalid | Record of vehicle speed signal invalid/ REC or UNREC | - | - |
| IG ON/OFF Times | Number of times IG switch is turned on after DTC detection/ Min.: 0 time, Max.: 255 times | - | - |
| DTC | Number of detected DTCs when freeze frame data is stored/ Min.: 0, Max.: 255 | - | - |
| Battery Voltage | BATTERY VOLTAGE Min.: 0V, Max.: 25.5 | - | 10 to 14 V |
| PS Assist Sig | Power steering assist signal/ ON or OFF | Engine switch on (IG) | - |