DATA LIST
Tech Tips
Using the intelligent tester to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.
Note
In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.
Turn the power switch OFF.
Connect the intelligent tester to the DLC3.
Turn the power switch ON (IG).
Turn the tester on.
Enter the following menus:
Chassis / EMPS / Data List.
According to the display on tester, read the "Data List".
Tech Tips
With the vehicle stopped or driving very slowly, if the steering wheel is turned repeatedly or turned to a lock position and driven for an extended period of time, the power assistance amount is decreased to prevent overheating of the motor and ECU. If this occurs, turn the power switch ON (READY) and do not turn the steering wheel for approximately 10 minutes to return the power assistance to normal.
If the auxiliary battery has not been recharged enough or the voltage drops temporarily, the power assistance amount may be decreased and the P/S warning light may be illuminated. If this occurs, the power assistance returns to normal when the auxiliary battery returns to normal.
| Tester Display | Measurement Item/Range | Normal Condition | Diagnostic Note |
|---|---|---|---|
| Meter Vehicle Velocity | Vehicle speed from meter/ Min.: 0.0 km/h (0 mph), Max.: 300.0 km/h (186 mph) |
|
- |
| Engine Revolution | Engine revolution/ Min.: 0 rpm, Max.: 12800 rpm |
Engine is running at a constant speed: No significant fluctuation | - |
| Motor Actual Current | Amount of current to motor/ Min.: -327.68 A, Max.: 327.67 A |
Power steering is in operation: Value changes in proportion to steering effort | When malfunction occurs, problem may be in steering system |
| Command Value Current | Demanded amount of current to motor/ Min.: -327.68 A, Max.: 327.67 A |
Power steering is in operation: Value changes in proportion to steering effort | When malfunction occurs, problem may be in steering system |
| Steering Angle Velocity | Steering angle speed/ Min.: -32768 deg/s, Max.: 32767 deg/s |
Steering wheel is turned: Value changes in proportion to steering speed | - |
| Thermistor Temperature | ECU substrate temperature/ Min.: -40°C, Max.: 150°C |
Equivalent to ambient ECU substrate temperature | - |
| IG Power Supply | ECU power source voltage/ Min.: 0.0000 V, Max.: 20.1531 V |
Power switch ON (IG): 11 to 14 V | - |
| Steering Angle Sens Sig | Steering angle sensor signal status/ OK or NG |
OK or NG | - |
| Torque Sensor 1 Output | Torque sensor 1 rotation angle/ Min.: 0.000 deg, Max.: 1441.770 deg |
Steering wheel is turned: Value changes from 0 to 360° every 22.5° of steering angle | When malfunction occurs, problem may be in torque sensor |
| Torque Sensor 2 Output | Torque sensor 2 rotation angle/ Min.: 0.000 deg, Max.: 1441.770 deg |
Steering wheel is turned: Value changes from 0 to 360° every 22.5° of steering angle | When malfunction occurs, problem may be in torque sensor |
| TRQ1 Zero Point Value | Zero point value of torque sensor 1/ Min.: 0.000 deg, Max.: 1441.770 deg |
Steering wheel is not turned (without load) |
When malfunction occurs, problem may be in torque sensor |
| TRQ2 Zero Point Value | Zero point value of torque sensor 2/ Min.: 0.000 deg, Max.: 1441.770 deg |
Steering wheel is not turned (without load) |
When malfunction occurs, problem may be in torque sensor |
| Steering Wheel Torque | Steering torque/ Min.: -327.68 Nm, Max.: 7.00 Nm |
Steering wheel is turned: Value changes in proportion to steering effort | When malfunction occurs, problem may be in torque sensor |
| Motor Rotation Angle | Motor rotation angle/ Min.: 0.000 deg, Max.: 1441.770 deg |
Steering wheel is turned: Value changes from 0 to 360° every 5° of steering angle | When malfunction occurs, problem may be in rotation angle sensor |
| Command Val Current 2 | Amount of current demanded by motor 2/ Min.: -327.68 A, Max.: 327.67 A |
Power steering is in operation: Value changes in proportion to steering effort | When malfunction occurs, problem may be in power steering motor |
| Motor Voltage | Motor power source voltage/ Min.: 0.000 V, Max.: 98.000 V |
Power switch ON (READY): 30 to 50 V | - |
| Motor Terminal Volt(U) | Motor terminal voltage (U phase)/ Min.: 0.000 V, Max.: 98.000 V |
Power steering is in operation: 0 to 50 V | When malfunction occurs, problem may be in power steering motor |
| Motor Terminal Volt(V) | Motor terminal voltage (V phase)/ Min.: 0.000 V, Max.: 98.000 V |
Power steering is in operation: 0 to 50 V | When malfunction occurs, problem may be in power steering motor |
| Motor Terminal Volt(W) | Motor terminal voltage (W phase)/ Min.: 0.000 V, Max.: 98.000 V |
Power steering is in operation: 0 to 50 V | When malfunction occurs, problem may be in power steering motor |
| IG ON/OFF Times | Number of times IG switch is turned on after DTC detection/ Min.: 0 times, Max.: 65535 times |
0 to 65535 | - |
| Motor Overheat Record | Continuous overheat prevention control record/ Rec or Unrec |
Rec or Unrec | - |
| Motor Lo Power Record | PIG power source voltage drop record/ Rec or Unrec |
Rec or Unrec | - |
| Eng Rev Inter Record | Record of engine revolution signal interruption/ Rec or Unrec |
Rec or Unrec | - |
| Str Angle Inter Record | Record of steering angle sensor signal interruption/ Rec or Unrec |
Rec or Unrec | - |
| Spd Sig Invalid Record | Record of vehicle speed signal invalid/ Rec or Unrec |
Rec or Unrec | - |
| Battery Voltage Lo Record | Past occurrences of low auxiliary battery voltage/ Min.: 0 times, Max.: 65535 times |
0 to 65535 | - |
| Battery Voltage | Auxiliary battery voltage/ Min.: 0.0 V, Max.: 25.5 V |
Power switch ON (IG): 11 to 14 V | - |
| HV Battery Voltage | HV battery voltage/ Min.: 0 V, Max.: 510 V |
Power switch ON (READY): 230 to 510 V | - |
| Power Source OK Sig | HV battery use permission signal/ OK or NG |
OK or NG | - |
| Break Gate Request Sig | HV battery stop request signal/ OK or BREAK |
OK or BREAK | - |
| DC-DC Warning Signal | Power steering converter warning signal/ OK or NG |
OK or NG | - |
| PS Assist Signal | Power steering assist signal/ ON or OFF |
ON or OFF | - |
| Ready Status | Ready status/ Ready or OFF |
Ready or OFF | - |
| Motor Actual Current 2 | Amount of current to motor 2/ Min.: -327.68 A, Max.: 327.67 A |
Power steering is in operation: Value changes in proportion to steering effort | When malfunction occurs, problem may be in power steering motor |
| The Number of DTCs | Number of detected DTCs when freeze frame data is stored/ Min.: 0, Max.: 255 |
0 to 255 | - |