Electric Power Steering System

APPLICATION ITEMS

CONSULT can display each diagnostic item using the diagnostic test modes shown as per the following.

Diagnostic test mode	Function
ECU identification	The part number stored in the control unit can be read.
Self Diagnostic Results	Self-diagnostic results and freeze frame data can be read and erased quickly*
Data monitor	Input/Output data in the power steering control module can be read.
Re/programming. Configuration	Read and save the vehicle specification (parts number). Write the vehicle specification (parts number) when replacing power steering control module.

^* : The following diagnosis information is erased by erasing.

DTC
Freeze frame data (FFD)

ECU IDENTIFICATION

Displays the part number stored in the control unit.

SELF-DIAG RESULTS MODE

Refer to DTC Index .

When "CRNT" is displayed on self-diagnosis result.

The system is presently malfunctioning.

When "PAST" is displayed on self-diagnosis result.

System malfunction in the past is detected, but the system is presently normal.

Freeze Frame Data (FFD)

The following vehicle status is recorded when DTC is detected and is displayed.

Freeze Frame Data Item	Unit	Description
ODO/TRIP METER	Km	Display the odometer value from combination meter via CAN communication.
BATTERY VOLT	V	Displays the power supply voltage for power steering control module.
IGN SW	OFF/ON	Display thestatus of ignition switch.
ENGINE STATUS	STOP/RUN/CRANK	Displays the engine status based on the engine status signal transmitted by CAN communications.
Steering mode status	Standard/Sports/Touring	Displays the status of steering mode based on the steering mode status signal transmitted by CAN communications.
VEHICLE SPEED	km/h	Display the vehicle speed from vehicle speed signal via CAN communication.
STEERING ANGLE SIGNAL	deg	Displays the steering angle based on steering angle signal transmitted by CAN communications.
STEERING ANGLE SPEED	deg/s	Displays the steering angle speed based on the steering angle signal transmitted by CAN communications.
STEERING TORQUE	Nm	Displays steering torque detected by torque sensor.
MOTOR CURRENT	A	Display the current value consumed by EPS motor.
Target motor current	A	Displays the target motor current value.
C/U TEMP	deg.C	Displays the temperature of the power steering control module.

DATA MONITOR MODE

NOTE: The following table includes information (items) inapplicable to this vehicle. For information (items) applicable to this vehicle, refer to CONSULT display items.

Monitor item	Unit	Remarks
BATTERY VOLT	V	Displays the power supply voltage for power steering control module.
STEERING TORQUE	Nm	Displays steering torque detected by torque sensor.
STEERING ANGLE SIGNAL	deg	Displays the steering angle based on steering angle signal transmitted by CAN communications.
STEERING ANGLE SPEED	deg/s	Displays the steering angle speed based on the steering angle signal transmitted by CAN communications.
MOTOR CURRENT	A	Display the current value consumed by EPS motor.
Target motor current	A	Displays the target motor current value.
C/U TEMP	deg.C	Displays the temperature of the power steering control module.
Assist level	%	Displays the current percentage of the allowable assist ratio EPS motor.
VEHICLE SPEED	km/h	Display the vehicle speed from vehicle speed signal via CAN communication.
WARNING LAMP	OFF/On	Displays the control status of power steering warning lamp.
STEERING ANGLE SENSOR STATUS	ABNORMAL/NORMAL	Displays the status of steering angle based on the steering angle status signal transmitted by CAN communications.
ENGINE STATUS	STOP/RUN/CRANK	Displays the engine status based on the engine status signal transmitted by CAN communications.
HEAT PROTCT STATUS	NORMAL/PRTECT	Displays the status of overheat protection.
MOTOR REVOLUTION SPEED	rpm	Displays the EPS motor speed.
CONTROL MODULE ESTM TEMP	deg.C	Displays the estimated temperature of power steering control module.
Steering mode status	Standard/Sports/Touring	Displays the status of steering mode based on the steering mode status signal transmitted by CAN communications.

RE/PROGRAMMING, CONFIGURATION

Programming includes the following functions.

Function		Description
Read/Write Configuration	Before replacing ECU	Allows the reading of vehicle specification (parts number) written in EPS control unit to store the specification in CONSULT. Allows the saving of vehicle specification (parts number) written in EPS control unit to store the specification in CONSULT.
Read/Write Configuration	After replacing ECU	Allows the writing of vehicle information (parts number) stored in CONSULT into the EPS control unit.