POWER STEERING SYSTEM > DATA LIST / ACTIVE TEST

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DATA LIST

HINT:
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.

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.

  1. Turn the ignition switch off.

  2. Connect the intelligent tester to the DLC3.

  3. Turn the ignition switch to ON.

  4. Turn the tester on.

  5. Enter the following menus: Chassis / EMPS / Data List.

  6. According to the display on the tester, read the Data List.


EMPS 
Tester Display
Measurement Item/Range
Normal Condition
Diagnostic Note
Meter Vehicle Velocity
Vehicle speed from meter:
Minimum: 0 km/h (mph), Maximum: 300 km/h (186.4 mph)
0 km/h (mph): Vehicle stopped
-
Vehicle driven at constant speed
No significant fluctuation
Engine Revolution
Engine revolution:
Minimum: 0 rpm, Maximum: 12800 rpm
Engine running at constant speed
No significant fluctuation
Motor Actual Current
Current to motor:
Minimum: -327.68 A, Maximum: 327.67 A
Value changes in proportion to steering effort
-
Command Value Current
Requested current to motor:
Minimum: -327.68 A, Maximum: 327.67 A
Value changes in proportion to steering effort
-
Steering Angle Velocity
Steering angle speed:
Minimum: -32768 deg/s, Maximum: 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:
Minimum: -40°C, Maximum: 150°C
-
-
PIG Power Supply
Power source voltage to activate motor:
Minimum: 0 V, Maximum: 20.1531 V
11 to 14 V: Always
-
Steering Wheel Torque
Steering Wheel Torque:
Minimum: -327.68 Nm, Maximum: 7 Nm
Value changes in proportion to steering effort
Ignition switch ON and power steering is operating
Motor Voltage
Motor Power Supply Voltage:
Minimum: 0 V, Maximum: 98 V
11 to 14 V: Ignition switch ON
-
Torque Sensor 1 Output
Torque sensor 1 output value:
Minimum: 0 V, Maximum: 5 V
2.3 to 2.7 V: Steering wheel not turned (without load)
Read value with vehicle stopped
2.5 to 4.7 V: Steering wheel turned to right
Read value with vehicle stopped
0.3 to 2.5 V: Steering wheel turned to left
Read value with vehicle stopped
Torque Sensor 2 Output
Torque sensor 2 output value:
Minimum: 0 V, Maximum: 5 V
2.3 to 2.7 V: Steering wheel not turned (without load)
Read value with vehicle stopped
2.5 to 4.7 V: Steering wheel turned to left
Read value with vehicle stopped
0.3 to 2.5 V: Steering wheel turned to right
Read value with vehicle stopped
Motor Terminal Volt (+)
Motor terminal M1 voltage:
Minimum: 0 V, Maximum: 25.5 V
for LHD:
11 to 14 V: Steering wheel turned to right
for RHD:
Below 7 V: Steering wheel turned to right
-
for LHD:
Below 7 V: Steering wheel turned to left
for RHD:
11 to 14 V: Steering wheel turned to left
-
Motor Terminal Volt (-)
Motor terminal M2 voltage:
Minimum: 0 V, Maximum: 25.5 V
for LHD:
Below 7 V: Steering wheel turned to right
for RHD:
11 to 14 V: Steering wheel turned to right
-
for LHD:
11 to 14 V: Steering wheel turned to left
for RHD:
Below 7 V: Steering wheel turned to left
-
IG ON/OFF Times
Number of times ignition switch turned to ON after DTC detection:
Minimum: 0 times, Maximum: 255 times
-
-
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
Status of the Record of Engine Revolution Signal Interrupt:
Unrec or Rec
Unrec
-
Spd Sig Invalid Record
Record of vehicle speed signal invalid:
Unrec or Rec
Unrec
-
Battery Voltage Lo Record
Battery voltage drop record:
Minimum: 0 times, Maximum: 65535 times
0 times
-
Battery Voltage
Battery voltage:
Minimum: 0 V, Maximum: 25.5 V
11 to 14 V: Always
-
PS Assist Signal
Status of the Record of Power Steering Assist Signal:
ON or OFF
ON or OFF
-
Stop and Start Control Mode*
Status of stop and start system control IG / Run / Stopreq / Stop / Restart
IG: Ignition switch ON (engine stopped)
Run: Engine running
Stopreq: Transition to idling stop
Stop: Idling stop
Restart: Engine restarting
-
The Number of DTCs
Number of detected DTCs when freeze frame data stored:
Minimum: 0, Maximum: 255
-
-
*: w/ Stop and Start System