Toyota Venza: Data List / Active Test
DATA LIST / ACTIVE TEST
1. DATA LIST
HINT:
Using the Techstream 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.
NOTICE:
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.
(a) Turn the ignition switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
(d) Turn the Techstream on.
(e) Enter the following menus: Chassis / EMPS / Data List.
(f) According to the display on the Techstream, read the "Data List".
EMPS|
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 (186.4 mph) |
0 km/h (0 mph) |
The vehicle is stopped. |
|
No significant fluctuation |
The vehicle is driven at a constant speed. |
||
|
Engine Revolution |
Engine speed/ Min.: 0 rpm Max.: 12800 rpm |
No significant fluctuation |
The 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 |
The engine is running and steering wheel is being turned. |
|
Command Value Current |
Demanded amount of current to motor/ Min.: -327.68 A Max.: 327.67 A |
Value changes in proportion to steering effort |
The engine is running and steering wheel is being turned. |
|
Steering Angle Velocity |
Steering angle speed/ Min.: -32768 deg/s Max.: 32767 deg/s |
Value changes in proportion to steering effort |
The engine is running and steering wheel is being turned. |
|
Thermistor Temperature |
ECU substrate temperature/ Min.: -40°C (-40°F) Max.: 150°C (302°F) |
-40°C to 150°C (-40°F to 302°F) |
Ignition switch ON |
|
PIG Power Supply |
Power source voltage to active motor/ Min.: 0 V Max.: 20.1531 V |
11 to 14 V |
The engine is running and power steering is operating. |
|
IG Power Supply |
ECU power source voltage/ Min.: 0 V Max.: 20.1531 V |
11 to 14 V |
Ignition switch ON |
|
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.: -7.0 Nm Max.: 7.0 Nm |
Value changes in proportion to steering effort |
The engine is running and steering wheel is being turned. |
|
Motor Rotation Angle |
Motor rotation angle/ Min.: 0 deg Max.: 360 deg |
During steering operation, motor rotation angle value changes from 0 to 360° |
The engine is running and steering wheel is being turned. |
|
Command Val Current 2 |
Demanded amount of current to motor/ Min.: -327.68 A Max.: 327.67 A |
Value changes in proportion to steering effort |
The engine is running and steering wheel is being turned. |
|
PIG2 Voltage |
Coil rear pressurization voltage/ Min.: 0 V Max.: 45.955 V |
Approximately 33 V |
The engine is running and steering wheel is not being turned. |
|
Value changes within 16 to 46 V range |
The engine is running and steering wheel is being turned. |
||
|
Motor Voltage |
Motor power supply voltage/ Min.: 0 V Max.: 45.955 V |
Approximately 33 V |
The engine is running and steering wheel is not being turned. |
|
Value changes within 4 to 46 V range |
The engine is running and steering wheel is being turned. |
||
|
Motor Terminal Volt(U) |
Motor terminal voltage (U phase)/ Min.: 0 V Max.: 46.667 V |
Value changes within 4 to 46 V range |
The engine is running and steering wheel is being turned. |
|
Motor Terminal Volt(V) |
Motor terminal voltage (V phase)/ Min.: 0 V Max.: 46.667 V |
Value changes within 4 to 46 V range |
The engine is running and steering wheel is being turned. |
|
Motor Terminal Volt(W) |
Motor terminal voltage (W phase)/ Min.: 0 V Max.: 46.667 V |
Value changes within 4 to 46 V range |
The engine is running and steering wheel is being turned. |
|
Torque Sensor 1 Output |
Torque sensor voltage/ Min.: 0 V Max.: 5 V |
2.3 to 2.7 V |
The engine is running and steering wheel is not turned (without load). |
|
2.5 to 3.8 V |
The engine is running and steering wheel is turned to right with vehicle stopped. |
||
|
1.2 to 2.5 V |
The engine is running and steering wheel is turned to left with vehicle stopped. |
||
|
Torque Sensor 2 Output |
Torque sensor voltage/ Min.: 0 V Max.: 5 V |
2.3 to 2.7 V |
The engine is running and steering wheel is not turned (without load). |
|
1.2 to 2.5 V |
The engine is running and steering wheel is turned to right with vehicle stopped. |
||
|
2.5 to 3.8 V |
The engine is running and steering wheel is turned to left with vehicle stopped. |
||
|
TRQ1 Zero Point Value |
Torque sensor 1 zero point voltage/ Min.: 0 V Max.: 5 V |
Values differ depending on vehicle |
The engine is running and steering wheel is not being turned. |
|
TRQ2 Zero Point Value |
Torque sensor 2 zero point voltage/ Min.: 0 V Max.: 5 V |
Values differ depending on vehicle |
The engine is running and steering wheel is not being turned. |
|
IG ON/OFF Times |
Number of times of engine switch ON/OFF after fail detection/ Min.: 0 time Max.: 65535 times |
- |
This value indicates the number of times of engine on/off after the latest DTC detection. |
|
PS Assist Signal |
Power steering assist signal/ ON or OFF |
OFF |
The engine is not running. |
|
ON |
The engine is running. |
||
|
The Number of DTCs |
Number of detected DTCs when freeze frame data stored/ Min.: 0 Max.: 255 |
0 to 255 |
- |
2. CONTROL HISTORY (DATA LIST)
EMPS|
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|
|
Motor Overheat Record |
Continuous overheat prevention control record/ Unrec or Rec |
Unrec |
- |
|
Motor Lo Power Record |
PIG power source voltage drop record/ Unrec or Rec |
Unrec |
- |
|
Eng Rev Inter Record |
Record of engine speed interruption/ Unrec or Rec |
Unrec |
- |
|
Str Angle Inter Record |
Record of steering sensor signal interruption occurrence display/ Unrec or Rec |
Unrec |
- |
|
Spd Sig Invalid Record |
Record of vehicle speed signal invalid/ Unrec or Rec |
Unrec |
- |
|
Battery Voltage Lo Record |
Battery voltage reduction history/ Min.: 0 times, Max.: 65535 times |
0 to 65535 |
- |
HINT:
- 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 at either full lock position for a long time. In such cases, the amount of power assist returns to normal if the steering wheel is not turned for approximately 10 minutes with the engine idling.
- If the battery is not sufficiently charged or the voltage decreases temporarily, the amount of power assist will be reduced and the EPS (P/S) warning light will come on. In such cases, the amount of power assist returns normal when the battery voltage recovers.
- When any value other than 0 is displayed for the "battery voltage reduction
history", inspect the charging system (See page
.gif)
for 2GR-FE or
for 1AR-FE).
Freeze Frame Data
FREEZE FRAME DATA
1. FREEZE FRAME DATA
NOTICE:
Freeze frame data values will vary depending on the measurement conditions,
surroundings, or vehicle conditions. For this reason, there ma ...
Fail-safe Chart
FAIL-SAFE CHART
If a problem occurs in the power steering system, the power steering assist will
be stopped or the amount of power assist will be decreased to protect the system.
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