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 ignition switch off.
Connect the intelligent tester to the DLC3.
Turn the ignition switch on (IG).
Turn the intelligent tester on.
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 |
|---|---|---|---|
| Meter Vehicle Velocity | Vehicle speed from meter: Min.: 0 km/h (0 mph) Max.: 300 km/h (187.5 mph) |
0 km/h (0 mph) | Vehicle stopped |
| No significant fluctuation | Vehicle driven at constant speed | ||
| Engine Revolution | Shows the engine speed: Min.: 0 rpm Max.: 12800 rpm |
No significant fluctuation | Engine is running at a constant speed |
| Motor Actual Current | Amount of current to motor: Min.: -327.68 A Max.: 327.67 A |
Value changes in proportion to steering effort | Power steering is in operation |
| Command Value Current | Demanded amount of current to motor: Min.: -327.68 A Max.: 327.68 A |
Value changes in proportion to steering effort | Power steering is in operation |
| Steering Angle Velocity | Steering angle speed: Min.: -32768°/sec. Max.: 32767°/sec. |
Value changes in proportion to steering effort | Steering wheel is turned |
| Thermistor Temperature | ECU substrate temperature: Min.: -40°C Max.: 150°C |
-40 to 150°C | Ignition switch on (IG) |
| PIG Power Supply | Power source voltage to activate motor: Min.: 0 V Max.: 20.1531 V |
11 to 14 V | Power steering is in operation |
| IG Power Supply | ECU power source voltage: Min.: 0 V Max.: 20.1531 V |
11 to 14 V | Ignition switch on (IG) |
| Steering Torque | Steering wheel torque: Min.: -7 Nm Max.: 7 Nm |
Value changes in proportion to steering effort | Ignition switch on (IG) and power steering is in operation |
| Motor Rotation Angle | Motor rotation angle: Min.: 0° Max.: 360° |
During steering operation, motor rotation angle value changes from 0 to 360° | Power steering is in operation |
| Motor Voltage | Motor power supply voltage: Min.:0 V Max.: 45.955 V |
11 to 14 V | Power steering is in operation |
| Motor Terminal Volt (U) | Motor terminal voltage (U phase): Min.: 0 V Max.: 46.667 V |
When the steering wheel is turned, a voltage between 1 V and approximately 1 V less than the battery voltage is displayed. | Engine running and steering wheel is turned |
| Motor Terminal Volt (V) | Motor terminal voltage (V phase): Min.: 0 V Max.: 46.667 V |
When the steering wheel is turned, a voltage between 1 V and approximately 1 V less than the battery voltage is displayed. | Engine running and steering wheel is turned |
| Motor Terminal Volt (W) | Motor Terminal voltage (W phase): Min.: 0 V Max.: 46.667 V |
When the steering wheel is turned, a voltage between 1 V and approximately 1 V less than the battery voltage is displayed. | Engine running and steering wheel is turned |
| IG ON/OFF Times | Ignition switch ON/OFF number of times after fail detection: Min.: 0 times Max.: 65535 times |
- | - |
| Motor Overheat Record | Continuous overheat prevention control record: REC or UNREC |
UNREC | - |
| Motor Lo Power Record | PIG power source voltage drop record: REC or UNREC |
UNREC | - |
| Eng Rev Inter Record | Record of engine revolution signal interruption REC or UNREC |
UNREC | - |
| Spd Sig Invalid Record | Record of vehicle speed signal invalid: REC or UNREC |
UNREC | - |
| Battery Voltage | Battery voltage: Min.: 0 V Max.: 25.5 V |
11 to 14 V | - |
| PS Assist Signal | Power steering assist signal: ON or OFF |
ON: Power steering assist signal is sent | Ignition switch on (IG) and steering wheel is turned |
| OFF: Power steering assist signal is not sent | No steering load (in neutral position) | ||
| The Number of DTCs | Number of detected DTCs when freeze frame data stored: Min.: 0 Max.: 255 |
- | - |
ACTIVE TEST
Tech Tips
Using the intelligent tester to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.
Turn the ignition switch off.
Connect the intelligent tester to the DLC3.
Turn the ignition switch on (IG).
Turn the intelligent tester on.
Enter the following menus: Body / Combination Meter / Active Test.
According to the display on the tester, perform the "Active Test".
| Tester Display | Test Part | Control Range | Control Range |
|---|---|---|---|
| Indicat. EPS (*1) | P/S Warning Light | ON or OFF | Confirm that vehicle is stopped, engine idling |
| Master Warning (*2) | Master Warning Light | ON or OFF | Confirm that vehicle is stopped, engine idling |
*1: w/o Multi-information Display
*2: w/ Multi-information Display