POWER STEERING SYSTEM DATA LIST / ACTIVE TEST
DATA LIST
Tip: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 ignition switch off.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Chassis / EMPS / Data List.
According to the display on the GTS, read the Data List.
Chassis > EMPS > 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)
Engine running and vehicle stopped: 0 km/h (0 mph)
Engine running and vehicle driven at a constant speed: No significant fluctuation
-
Engine Revolution
Engine speed
Min.: 0 rpm
Max.: 12800 rpm
Engine running at a constant speed: No significant fluctuation
-
Motor Actual Current
Amount of current to motor
Min.: -327.68 A
Max.: 327.67 A
Engine running and steering wheel being turned: The value rises
-
Command Value Current
Requested current to motor
Min.: -327.68 A
Max.: 327.67 A
Engine running and steering wheel being turned: Value changes in proportion to steering effort
-The value increases when turning left and decreases when turning right
-
Steering Angle Velocity
Steering angle speed
Min.: -32768 deg/s
Max.: 32767 deg/s
Engine running and steering wheel being turned: Value changes in proportion to steering speed
-The value increases when turning left and decreases when turning right
-
Thermistor Temperature
ECU substrate temperature
Min.: -50.0°C (-58.0°F)
Max.: 150.0°C (302.0°F)
Engine running: -50°C to 150°C (-58°F to 302°F)
-
PIG Power Supply
Power source voltage to active motor
Min.: 0.0000 V
Max.: 20.1531 V
Engine running and steering wheel being turned: 11 to 14 V
-
IG Power Supply
IG power source voltage
Min.: 0.0000 V
Max.: 20.1531 V
Ignition switch ON: 11 to 14 V
-
Steering Wheel Torque
Steering wheel torque
Min.: -327.68 Nm
Max.: 7.00 Nm
Engine running and steering wheel being turned: Value changes in proportion to steering effort
-The value increases when turning left and decreases when turning right
-
Motor Rotation Angle
Motor rotation angle
Min.: 0.000 deg
Max.: 1441.770 deg
Engine running and steering wheel being turned: During steering operation, motor rotation angle value changes from 0 to 360 deg
-
Motor Voltage
Motor power supply voltage
Min.: 0.000 V
Max.: 98.000 V
Engine running and steering wheel being turned: 11 to 14 V
-
Motor Terminal Volt(U)
Motor terminal voltage (A phase)
Min.: 0.000 V
Max.: 98.000 V
Engine running and steering wheel being turned: Value changes within 4 to 35 V range
-
Motor Terminal Volt(V)
Motor terminal voltage (B phase)
Min.: 0.000 V
Max.: 98.000 V
Engine running and steering wheel being turned: Value changes within 4 to 35 V range
-
Motor Terminal Volt(W)
Motor terminal voltage (C phase)
Min.: 0.000 V
Max.: 98.000 V
Engine running and steering wheel being turned: Value changes within 4 to 35 V range
-
Torque Sensor 1 Output
Torque sensor voltage
Min.: 0.0000 V
Max.: 4.9725 V
Engine running and steering wheel not being turned (without load): 2.3 to 2.7 V
Engine running and steering wheel being turned to the right with vehicle stopped: 2.5 to 4.7 V
Engine running and steering wheel being turned to the left with vehicle stopped: 0.3 to 2.5 V
-
Torque Sensor 2 Output
Torque sensor voltage
Min.: 0.0000 V
Max.: 4.9725 V
Engine running and steering wheel not being turned (without load): 2.3 to 2.7 V
Engine running and steering wheel being turned to the right with vehicle stopped: 0.3 to 2.5 V
Engine running and steering wheel being turned to the left with vehicle stopped: 2.5 to 4.7 V
-
IG ON/OFF Times
Number of times of ignition switch ON/OFF after fail detection
Min.: 0 times
Max.: 65535 times
-
This value indicates the number of times of ignition switch ON/OFF after the latest DTC detection.
Motor Overheat Record
Continuous overheat prevention control record
Unrec or Rec
Unrec
Unrec: Unrecorded
Rec: Recorded
Motor Lo Power Record
PIG power source voltage drop record
Unrec or Rec
Unrec
Unrec: Unrecorded
Rec: Recorded
Eng Rev Inter Record
Record of engine speed signal interruption
Unrec or Rec
Unrec
Unrec: Unrecorded
Rec: Recorded
Spd Sig Invalid Record
Record of vehicle speed signal invalid
Unrec or Rec
Unrec
Unrec: Unrecorded
Rec: Recorded
Battery Voltage Lo Record
Number of times battery voltage is low
Min.: 0 times
Max.: 65535 times
0 to 65535
-
Battery Control Count (Body ECU)
Number of battery load control operations
Min.: 0 times
Max.: 65535 times
0 to 65535
-
Battery Voltage
Battery voltage
Min.: 0.0 V
Max.: 25.5 V
Ignition switch ON: 11 to 14 V
-
PS Assist Signal
Power steering assist signal
ON or OFF
Except engine running: OFF
Engine running: ON
-
Stop&Start Ctrl Mode
Status of the record of stop and start control mode
IG, Run, Stopreq, Stop or Restart
-
-
The Number of DTCs
Number of detected DTCs when freeze frame data stored
Min.: 0
Max.: 255
0 to 255
-
When the value displayed for "Battery Voltage Lo Record" in the Data List is not 0 with the battery voltage low, the system is limiting the rear window defogger, PTC heater, outer mirror heater and windshield deicer operation. In this case, inspect the charging system.
Refer to the following procedures.
for 2AD-FHV:Click here
for 2AD-FTV:Click here
for 2AR-FE:Click here
for 3ZR-FAE:Click here
for 3ZR-FE:Click here
for 2WW:Click here