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.
Warm up the engine.
Turn the engine switch off.
Connect the intelligent tester to the DLC3.
Turn the engine switch on.
Turn ON the intelligent tester.
Enter the following menus: Chassis / EMPS / Data List.
According to the display on the tester, read the "Data List".
| Tester Display | Measurement Item/Range | Normal Condition | Diagnostic Note |
|---|---|---|---|
| Engine Speed | Vehicle speed from meter/ Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph) |
|
- |
| 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 | When malfunction occurs, problem may be in steering system |
| 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 | When malfunction occurs, problem may be in steering system |
| Str Angl Vel | Steering angle speed/ Min.: -4,096 deg/sec, Max.: 4064 deg/sec |
Steering wheel is turned: Value changes in proportion to steering speed | - |
| Thermistor Temp | ECU substrate temperature/ Min.: -50°C, Max.: 205°C |
Equivalent to ambient ECU substrate temperature | - |
| IG Supply | ECU power source voltage/ Min.: 0 V, Max.: 25.5 V |
Engine switch on (IG): 11 to 14 V | - |
| Str Sens Sig | Steering angle sensor signal status/ OK or NG |
OK or NG | - |
| 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 | When malfunction occurs, problem may be in torque sensor |
| 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 | When malfunction occurs, problem may be in torque sensor |
| Trq1 Zero Val | Zero point value of torque sensor 1/ Min.: 0 deg, Max.: 360 deg |
Steering wheel is not turned (without load) |
When malfunction occurs, problem may be in torque sensor |
| Trq2 Zero Val | Zero point value of torque sensor 2/ Min.: 0 deg, Max.: 360 deg |
Steering wheel is not turned (without load) |
When malfunction occurs, problem may be in torque sensor |
| 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 | When malfunction occurs, problem may be in torque sensor |
| 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 | When malfunction occurs, problem may be in rotation angle sensor |
| Command Val 2 | Amount of current demanded by motor 2/ Min.: -128 A, Max.: 127 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 V, Max.: 64 V |
Power steering is in operation: 2 to 48 V | - |
| Mtr Terminal(U) | Motor terminal voltage (U phase)/ Min.: 0 V, Max.: 64 V |
Power steering is in operation: 2 to 48 V | When malfunction occurs, problem may be in power steering motor. |
| Mtr Terminal(V) | Motor terminal voltage (V phase)/ Min.: 0 V, Max.: 64 V |
Power steering is in operation: 2 to 48 V | When malfunction occurs, problem may be in power steering motor. |
| Mtr Terminal(W) | Motor terminal voltage (W phase)/ Min.: 0 V, Max.: 64 V |
Power steering is in operation: 2 to 48 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 time, Max.: 255 times |
0 to 255 | - |
| Mtr Overheat | Continuous overheat prevention control record/ REC or UNREC |
REC or UNREC | - |
| Mtr Low Power | PIG power source voltage drop record/ REC or UNREC |
REC or UNREC | - |
| Eng Rev Inter | Record of engine revolution signal interruption/ REC or UNREC |
REC or UNREC | - |
| Str Angl Inter | Record of steering angle sensor signal interruption/ REC or UNREC |
REC or UNREC | - |
| SPD Sig Invalid | Record of vehicle speed signal invalid/ REC or UNREC |
REC or UNREC | - |
| Batt Vol Low | Past occurrences of low battery voltage/ Min.: 0 times, Max.: 65535 times |
0 to 65535 | - |
| Battery Voltage | Battery voltage/ Min.: 0 V, Max.: 25.5 V |
11 to 14 V | - |
| DC-DC Warning | 42 V DC / DC converter warning signal/ OK or NG |
OK or NG | - |
| PS Assist Sig | Power steering assist signal/ ON or OFF |
ON or OFF | - |
| Motor Actual 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. |
| DTC | Number of detected DTCs when freeze frame data is stored/ Min.: 0, Max.: 255 |
0 to 255 | - |
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, idle the engine and do not turn the steering wheel for approximately 10 minutes to return the power assistance to normal.
If the 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 battery returns to normal. When troubleshooting malfunctions, use the intelligent tester to check for power load malfunctions through the electric power control system's load control history.