DATA LIST
Tech Tips
Using the GTS 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 GTS to the DLC3.
Turn the power switch on (IG).
Turn the GTS on.
Enter the following menus: Chassis / EMPS / Data List.
According to the display on the GTS, read the Data List.
| 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) |
Power switch on (READY) and vehicle stopped: 0 km/h (0 mph) Power switch on (READY) and vehicle driven at a constant speed: No significant fluctuation |
- |
| Motor Actual Current | Amount of current to motor | Min.: -327.68 A Max.: 327.67 A |
Value changes in proportion to steering effort - The value rises in left turn - The value descends in right turn |
Power switch on (READY) and power steering is in operation |
| Command Value Current | Requested current to motor | Min.: -327.68 A Max.: 327.67 A |
Value changes in proportion to steering effort - The value rises in left turn - The value descends in right turn |
Power switch on (READY) and power steering is in operation |
| Steering Angle Velocity | Steering angle speed | Min.: -32768 deg/s Max.: 32767 deg/s |
Value changes in proportion to steering effort - The value rises in left turn - The value descends in right turn |
Power switch on (READY) and steering wheel is being turned |
| Thermistor Temperature | ECU substrate temperature | Min.: -50.0°C (-58.0°F) Max.: 150.0°C (302.0°F) |
-40°C to 150°C (-40°F to 302°F) | Power switch on (READY) |
| PIG Power Supply | Power source voltage to active motor | Min.: 0.0000 V Max.: 20.1531 V |
9 to 16 V | Power switch on (READY) and power steering is in operation |
| IG Power Supply | IG power source voltage | Min.: 0.0000 V Max.: 20.1531 V |
9 to 16 V | Power switch on (IG) |
| Steering Angle Sens Sig | Steering angle sensor signal state | OK or NG(1) or NG(2) or NG(3) | OK: Steering angle sensor signal received NG(1): The learning has not completed NG(2): Steering sensor abnormal NG(3): Communication error |
- |
| Steering Wheel Torque | Steering wheel torque | Min.: -327.68 Nm Max.: 7.00 Nm |
Value changes in proportion to steering effort - The value rises in left turn - The value descends in right turn |
Power switch on (READY) and power steering is in operation |
| Motor Rotation Angle | Motor rotation angle | Min.: 0.000 deg Max.: 1441.770 deg |
During steering operation, motor rotation angle value changes from 0 to 360° | Power switch on (READY) and power steering is in operation |
| Command Val Current 2 | Requested current to motor | Min.: -327.68 A Max.: 327.67 A |
Value changes in proportion to steering effort | Power switch on (READY) and power steering is in operation |
| PIG2 Voltage | Coil rear pressurization voltage | Min.: 0.000 V Max.: 98.000 V |
Power switch on (READY) and steering wheel is not being turned: 9 to 16 V Power switch on (READY) and steering wheel is being turned: Value changes within 4 to 35 V range |
- |
| Motor Voltage | Motor power supply voltage | Min.: 0.000 V Max.: 98.000 V |
Power switch on (READY) and steering wheel is not being turned: Approximately 30 V Power switch on (READY) and steering wheel is being turned: Value changes within 4 to 35 V range |
- |
| Motor Terminal Volt(U) | Motor terminal voltage (A phase) | Min.: 0.000 V Max.: 98.000 V |
Value changes within 4 to 35 V range | Power switch on (READY) and steering wheel is being turned |
| Motor Terminal Volt(V) | Motor terminal voltage (B phase) | Min.: 0.000 V Max.: 98.000 V |
Value changes within 4 to 35 V range | Power switch on (READY) and steering wheel is being turned |
| Motor Terminal Volt(W) | Motor terminal voltage (C phase) | Min.: 0.000 V Max.: 98.000 V |
Value changes within 4 to 35 V range | Power switch on (READY) and steering wheel is being turned |
| Torque Sensor 1 Output | Torque sensor voltage | Min.: 0.0000 V Max.: 4.9725 V |
Power switch on (READY) and steering wheel is not turned (without load): 2.3 to 2.7 V Power switch on (READY) and steering wheel is being turned to the right with vehicle stopped: 2.5 to 3.8 V Power switch on (READY) and steering wheel is being turned to the left with vehicle stopped: 1.2 to 2.5 V |
- |
| Torque Sensor 2 Output | Torque sensor voltage | Min.: 0.0000 V Max.: 4.9725 V |
Power switch on (READY) and steering wheel is not turned (without load): 2.3 to 2.7 V Power switch on (READY) and steering wheel is being turned to the right with vehicle stopped: 1.2 to 2.5 V Power switch on (READY) and steering wheel is being turned to the right with vehicle stopped: 2.5 to 3.8 V |
- |
| TRQ1 Zero Point Value | Torque sensor voltage | Min.: 0.0000 V Max.: 4.9725 V |
Values differ depending on vehicle | Power switch on (READY) and steering wheel is not being turned |
| TRQ2 Zero Point Value | Torque sensor voltage | Min.: 0.0000 V Max.: 4.9725 V |
Values differ depending on vehicle | Power switch on (READY) and steering wheel is not being turned |
| IG ON/OFF Times | Number of times of power switch ON/OFF after fail detection | Min.: 0 times Max.: 65535 times |
- | This value indicates the number of times of power switch ON/OFF after the latest DTC detection. |
| Motor Overheat Record | Continuous overheat prevention control record | Unrec: Unrecorded Rec: Recorded |
Unrec | The amount of power assist may be decreased to prevent the motor and ECUs from overheating if the steering wheel is continuously turned when the vehicle is either stopped or driven at a low speed, or if the steering wheel is kept in either full lock position for a long time. |
| Motor Lo Power Record | PIG power source voltage drop record | Unrec: Unrecorded Rec: Recorded |
Unrec | If the PIG power source voltage decreases temporarily, the amount of power assist will be reduced. |
| System Start Inter Record | Record of READY ON signal interruption | Unrec: Unrecorded Rec: Recorded |
Unrec | - |
| Str Angle Inter Record | Record of steering sensor signal interruption occurrence display | Unrec: Unrecorded Rec: Recorded |
Unrec | - |
| Spd Sig Invalid Record | Record of vehicle speed signal invalid | Unrec: Unrecorded Rec: Recorded |
Unrec | - |
| Battery Voltage Lo Record | Number of times auxiliary battery voltage is low | Min.: 0 times Max.: 65535 times |
0 to 65535 | When cranking occurs during assist, the count may increase. |
| Ready Status | Ready status | OFF or Ready | Except power switch on (READY): OFF Power switch on (READY): ON |
- |
| The Number of DTCs | Number of detected DTCs when freeze frame data stored | Min.: 0 Max.: 255 |
- | - |
Tech Tips
When the value displayed for "Battery Voltage Lo Record" in the Data List is not 0 with the auxiliary battery voltage low, the system is limiting the rear window defogger, PTC heater, outer mirror heater, seat heater and windshield deicer operation. In this case, inspect the charging system.