Last Modified: 05-08-2025 6.11:8.1.0 Doc ID: RM100000001H8ML
Model Year Start: 2019 Model: RAV4 Prod Date Range: [02/2019 - 10/2022]
Title: POWER ASSIST SYSTEMS: POWER STEERING SYSTEM (for Type A): DATA LIST / ACTIVE TEST; 2019 - 2022 MY RAV4 RAV4 HV [02/2019 - 10/2022]

DATA LIST / ACTIVE TEST

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.

Chassis > EMPS > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Total Distance Traveled

Total distance traveled

Min.: 0

Max.: 16777215

-

-

Total Distance Traveled - Unit

Total Distance Traveled unit

km or mile

-

-

Vehicle Speed

Vehicle speed

Min.: 0.0 km/h (0.0 mph)

Max.: 300.0 km/h (186.4 mph)

Vehicle stopped: 0.0 km/h (0.0 mph)

When driving at constant speed: No large fluctuations

Engine Revolution

Engine speed

Min.: 0 rpm

Max.: 12800 rpm

Engine stopped: 0 rpm

When engine speed is constant: No large fluctuations

Ready Status

Ready status

ON or OFF

ON: Power switch on (READY)

OFF: Except power switch on (READY)

for HV Model

Battery Voltage

Auxiliary battery voltage

Min.: 0.00 V

Max.: 25.00 V

Actual auxiliary battery voltage

-

Steering Wheel Torque

Steering wheel torque

Min.: -25.000 Nm

Max.: 25.001 Nm

Value changes in proportion to steering effort

  • The value increases when turning left and decreases when turning right

for Gasoline Model:

  • Engine running and steering wheel being turned

for HV Model:

  • Hybrid control system started and steering wheel being turned

Steering Angle Velocity

Steering angle speed

Min.: -32768 deg/s

Max.: 32767 deg/s

Value changes in proportion to steering speed

  • The value increases when turning left and decreases when turning right

for Gasoline Model:

  • Engine running and steering wheel being turned

for HV Model:

  • Hybrid control system started and steering wheel being turned

Steering Angle

Steering angle

Min.: -3072.0 deg

Min.: 3070.5 deg

Turning left: 0.0 to 3070.5 deg

Turning right: -3072.0 to 0.0 deg

-

IG Power Supply

IG power source voltage

Min.: 0.00 V

Max.: 25.00 V

Actual IG power source voltage

-

PIG Power Supply

PIG power source voltage

Min.: 0.00 V

Max.: 25.00 V

Actual PIG power source voltage

-

Thermistor Temperature

Thermistor temperature

Min.: -50.0°C (-58.0°F)

Max.: 200.0°C (392.0°F)

Actual thermistor temperature

-

Power Source

Power source

Operating State or Stopped State

-

-

PS Assist Signal

Status of the record of power steering assist signal

Assist Stop or Under an Assist

-

-

Torque Sensor 1 Output

Torque sensor 1 output value

Min.: -25.000 Nm

Max.: 25.001 Nm

-

-

Torque Sensor 2 Output

Torque sensor 2 output value

Min.: -25.000 Nm

Max.: 25.001 Nm

-

-

Motor 1 U Phase Current

Motor 1 current (U phase)

Min.: -327.68 A

Max.: 327.67 A

Value changes in proportion to steering effort

for Gasoline Model:

  • Engine running and steering wheel being turned

for HV Model:

  • Hybrid control system started and steering wheel being turned

Motor 1 V Phase Current

Motor 1 current (V phase)

Min.: -327.68 A

Max.: 327.67 A

Value changes in proportion to steering effort

for Gasoline Model:

  • Engine running and steering wheel being turned

for HV Model:

  • Hybrid control system started and steering wheel being turned

Motor 1 W Phase Current

Motor 1 current (W phase)

Min.: -327.68 A

Max.: 327.67 A

Value changes in proportion to steering effort

for Gasoline Model:

  • Engine running and steering wheel being turned

for HV Model:

  • Hybrid control system started and steering wheel being turned

Motor 1 U Phase Duty

Motor 1 U phase duty

Min.: 0.00%

Max.: 100.00%

-

-

Motor 1 V Phase Duty

Motor 1 V phase duty

Min.: 0.00%

Max.: 100.00%

-

-

Motor 1 W Phase Duty

Motor 1 W phase duty

Min.: 0.00%

Max.: 100.00%

-

-

Motor 1 Power Supply

Power supply voltage to active motor 1

Min.: 0.00 V

Max.: 25.00 V

Motor 1 power supply voltage

for Gasoline Model:

  • Engine running and steering wheel being turned

for HV Model:

  • Hybrid control system started and steering wheel being turned

Motor 2 U Phase Current

Motor 2 current (U phase)

Min.: -327.68 A

Max.: 327.67 A

Value changes in proportion to steering effort

for Gasoline Model:

  • Engine running and steering wheel being turned

for HV Model:

  • Hybrid control system started and steering wheel being turned

Motor 2 V Phase Current

Motor 2 current (V phase)

Min.: -327.68 A

Max.: 327.67 A

Value changes in proportion to steering effort

for Gasoline Model:

  • Engine running and steering wheel being turned

for HV Model:

  • Hybrid control system started and steering wheel being turned

Motor 2 W Phase Current

Motor 2 current (W phase)

Min.: -327.68 A

Max.: 327.67 A

Value changes in proportion to steering effort

for Gasoline Model:

  • Engine running and steering wheel being turned

for HV Model:

  • Hybrid control system started and steering wheel being turned

Motor 2 U Phase Duty

Motor 2 U phase duty

Min.: 0.00%

Max.: 100.00%

-

-

Motor 2 V Phase Duty

Motor 2 V phase duty

Min.: 0.00%

Max.: 100.00%

-

-

Motor 2 W Phase Duty

Motor 2 W phase duty

Min.: 0.00%

Max.: 100.00%

-

-

Motor Rotation Angle1

Motor rotation angle

Min.: 0.0 deg

Max.: 360.1 deg

During steering operation, motor rotation angle value changes from 0.0 to 360.1 deg

for Gasoline Model:

  • Engine running and steering wheel being turned

for HV Model:

  • Hybrid control system started and steering wheel being turned

Motor Actual Current (Q Axis)

Motor actual current

Min.: -327.68 A

Max.: 327.67 A

-

-

Motor Rotation Angle

Motor rotation angle

Min.: 0.0 deg

Max.: 360.1 deg

During steering operation, motor rotation angle value changes from 0.0 to 360.1 deg

for Gasoline Model:

  • Engine running and steering wheel being turned

for HV Model:

  • Hybrid control system started and steering wheel being turned

Final Motor Current limited (Q Axis)

Final motor current limit value

Min.: 0.00 A

Max.: 327.67 A

-

-

Steering Angle Sensor Signal State

Steering sensor signal state

Usable, Unlearned, Sensor Fault or Communication Fault

-

-

Eco-Run Control Mode

Stop and start system control mode

Eco Mode0, Eco Mode1, Eco Mode2, Eco Mode3 or Eco Mode4

-

-

CAN Vehicle Speed (Speed Sensor RR)

Rear wheel speed sensor RH

Min.: 0 km/h (0 mph)

Max.: 255 km/h (158 mph)

-

-

CAN Vehicle Speed (Speed Sensor RL)

Rear wheel speed sensor LH

Min.: 0 km/h (0 mph)

Max.: 255 km/h (158 mph)

-

-

CAN Vehicle Speed (SP1)

Vehicle speed (combination meter)

Min.: 0.0 km/h (0.0 mph)

Max.: 300.0 km/h (186.4 mph)

-

-

CAN Steering Angle Speed (SSAV)

Steering angle speed

Min.: -32768 deg/s

Max.: 32767 deg/s

-

-

Battery Voltage Drop History

Auxiliary battery voltage drop history

Min.: 0

Max.: 255

-

-

Engine Revolution Ready Signal Communication Failure History

Engine revolution or Ready signal communication failure history

Min.: 0

Max.: 255

-

-

Steering Angle Sensor Signal Communication Failure History

Steering sensor signal communication failure history

Min.: 0

Max.: 255

-

-

Vehicle Speed Signal Invalid History

Vehicle speed signal invalid history

Min.: 0

Max.: 255

-

-

Overheat Prevention Control History

Overheat prevention control history

Min.: 0

Max.: 255

-

-

Power Supply Voltage Drop Control History

Power supply voltage drop control history

Min.: 0

Max.: 255

-

-

Power Supply Voltage Drop Restraint Control History

Power supply voltage drop restraint control history

Min.: 0

Max.: 255

-

-

Engine Stall/READY OFF Control History

Engine stall or Ready OFF control history

Min.: 0

Max.: 255

-

-

High Load Continuous Control Number of Times

High load continuous control history

Min.: 0

Max.: 255

-

-

Vehicle Speed Signal Fault Control History

Vehicle speed signal fault control history

Min.: 0

Max.: 255

-

-

Chassis Power Supply Management EPS Control History

Chassis power supply management power steering system control history

Min.: 0

Max.: 255

-

-

Load Control History

Load control history

Min.: 0

Max.: 255

-

-

Control State Information

Control state information

Min.: 0

Max.: 65535

-

-

ECU Overheat Prevention Part

ECU overheat prevention part

No Target Part, IPWM, Inverter MOS, Power Supply Relay MOS, Custom IC, Choke Coil, H Bridge MOS, Motor Relay MOS, Around Microcomputer, Capacitor, Microcomputer or DBC

-

-

ECU Estimate Temperature of Overheat Prevention Part

Estimated ECU overheat prevention part temperature

Min.: -50.0°C (-58.0°F)

Max.: 200.1°C (392.1°F)

-

-

Motor Overheat Prevention Part

Motor overheat prevention part

No Target Part or Motor

-

-

Motor Estimate Temperature of Overheat Prevention Part

Estimated motor overheat prevention part temperature

Min.: -50.0°C (-58.0°F)

Max.: 200.1°C (392.1°F)

-

-