Electronic Power Steering System Data List / Active Test

Steering. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
Power Steering. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

  1. READ DATA LIST

  1. PERFORM ACTIVE TEST

Electronic Power Steering System -- Data List / Active Test



READ DATA LIST
HINT:
Using the intelligent tester's Data List allows switch, sensor, actuator and other item values to be read without removing any parts. Reading the Data List early in troubleshooting is one way to save time.

  1. Connect the intelligent tester to the DLC3.

  2. Turn the ignition switch on (IG) and press the intelligent tester main switch ON.

  3. Read the Data List by following the directions on the tester screen.

    Power steering ECU
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Reference Value
    Meter Vehicle Velocity
    		Vehicle speed from meter:
    Min.: 0 km/h (0 mph)
    Max.: 300 km/h (187.5 mph)
    		Vehicle stopped
    		0 km/h (0 mph)
    Vehicle driven at constant speed
    		No significant fluctuation
    Engine Revolution
    		Show the engine revolution:
    Min.: 0 rpm
    Max.: 12800 rpm
    		Engine is running at a constant speed
    		No significant fluctuation
    Motor Actual Current
    		Amount of current to motor:
    Min.: -327.68 A
    Max.: 327.67 A
    		Power steering is in operation
    		Value changes in proportion to steering effort
    Command Value Current
    		Demanded amount of current to motor:
    Min.: -327.68 A
    Max.: 327.67 A
    		Power steering is in operation
    		Value changes in proportion to steering effort
    Steering Angle Velocity
    		Steering angle speed:
    Min.: -32768 deg/s
    Max.: 32767 deg/s
    		Steering wheel is turned
    		Value changes in proportion to steering effort
    Thermistor Temperature
    		ECU substrate temperature:
    Min.: -40°C
    Max.: 150°C
    		Ignition switch on (IG)
    		-
    PIG Power Supply
    		Power source voltage to activate motor:
    Min.: 0 V
    Max.: 20.1531 V
    		Power steering in operation
    		10 to 14 V
    IG Power Supply
    		ECU power source voltage:
    Min.: 0 V
    Max.: 20.1531 V
    		Ignition switch on (IG)
    		10 to 14 V
    Steering Wheel Torque
    		Steering wheel torque:
    Min.: -327.68 Nm
    Max.: 7 Nm
    		-
    		-
    Motor Rotation Angle
    		Motor rotation angle:
    Min.: 0 deg
    Max.: 1441.77 deg
    		Power steering in operation
    		During steering operation, motor rotation angle value changes from 0 to 360°
    Motor Voltage
    		Motor power supply voltage:
    Min.: 0 V
    Max.: 98 V
    		Power steering in operation
    		-
    Motor Terminal Volt (U)
    		Motor terminal voltage (U phase):
    Min.: 0 V
    Max.: 98 V
    		Engine running and steering wheel turned
    		When the steering wheel is turned, a voltage between 1 V and approximately 1 V less than the battery voltage is displayed.
    Motor Terminal Volt (V)
    		Motor terminal voltage (V phase):
    Min.: 0 V
    Max.: 98 V
    		Engine running and steering wheel turned
    		When the steering wheel is turned, a voltage between 1 V and approximately 1 V less than the battery voltage is displayed.
    Motor Terminal Volt (W)
    		Motor Terminal voltage (W phase):
    Min.: 0 V
    Max.: 98 V
    		Engine running and steering wheel turned
    		When the steering wheel is turned, a voltage between 1 V and approximately 1 V less than the battery voltage is displayed.
    Torque Sensor 1 Output
    		Torque sensor 1 output voltage/
    Min.: 0 V
    Max.: 5 V
    		2.3 to 2.7 V
    		Steering wheel is not turned (without load)
    2.5 to 4.04 V
    		Steering wheel is turned to the right when the vehicle is stopped
    0.95 to 2.5 V
    		Steering wheel is turned to the left when the vehicle is stopped
    Torque Sensor 2 Output
    		Torque sensor 2 output voltage/
    Min.: 0 V
    Max.: 5 V
    		2.3 to 2.7 V
    		Steering wheel is not turned (without load)
    0.95 to 2.5 V
    		Steering wheel is turned to the right when the vehicle is stopped
    2.5 to 4.04 V
    		Steering wheel is turned to the left when the vehicle is stopped
    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 Lo Record
    		Number of battery voltage low:
    Min.: 0 times
    Max.: 65535 times
    		-
    		-
    Battery Voltage
    		Battery voltage:
    Min.: 0 V
    Max.: 25.5 V
    		-
    		10 to 14 V
    PS Assist Signal
    		Power steering assist signal:
    ON or OFF
    		-
    		-
    The Number of DTCs
    		Number of detected DTCs when freeze frame data stored:
    Min.: 0
    Max.: 255
    		-
    		-


PERFORM ACTIVE TEST
HINT:
Performing the intelligent tester's Active Test allows relays, the VSV, actuators and other items to be operated without removing any parts. Performing the Active Test early in troubleshooting is one way to save time. The Data List can be displayed in the Active Test.

  1. Connect the intelligent tester to the DLC3.

  2. Turn the ignition switch on (IG) and turn the intelligent tester ON.

  3. Perform the Active Test by following the prompts on the tester.

    Combination meter
    Tester Display
    		Test Part
    		Control Range
    Indicat. EPS
    		P/S indicator
    ON/OFF
    		Confirm that vehicle is stopped, engine idling