Toyota Venza: Calibration

Toyota Venza Service Manual / Power Assist Systems / Power Steering System / Calibration

CALIBRATION

1. ROTATION ANGLE SENSOR INITIALIZATION AND TORQUE SENSOR ZERO POINT CALIBRATION

NOTICE:

Clear the rotation angle sensor calibration value, initialize the rotation angle sensor, and calibrate the torque sensor zero point if any of the following has occurred:

The power steering ECU has been replaced.
The steering column assembly has been replaced.
Steering effort differs between turning left and right.

(a) Inspection before calibration

(1) Turn the ignition switch off.

(2) Connect the Techstream to the DLC3.

(3) Turn the ignition switch to ON.

(4) Turn the Techstream on.

(5) Calibrate the power steering ECU. Enter the following menus: Chassis / EMPS / Data List.

(6) Check the values by referring to the table below.

EMPS

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
IG Power Supply	ECU power source voltage/ Min.: 0 V Max.: 20.1531 V	10 to 14 V	Ignition switch ON

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

IG Power Supply

ECU power source voltage/

Min.: 0 V

Max.: 20.1531 V

10 to 14 V

Ignition switch ON

Standard voltage:

10 to 14 V

NOTICE:

If the IG power supply voltage is 9 V or less, calibration cannot be performed. In this case, charge or replace the battery, and then perform calibration.

(b) Rotation angle sensor calibration value clear, rotation angle sensor initialization, and torque sensor zero point calibration

NOTICE:

If DTC C1516 (Torque Sensor Zero Point Adjustment Incomplete) is stored, the torque sensor zero point cannot be calibrated. Clear the DTC before starting calibration.
If DTC C1526 (Rotation Angle Sensor Initialization Incomplete) is stored, the rotation angle sensor cannot be initialized. Clear the DTC before starting initialization.

(1) Turn the ignition switch off.

(2) Connect the Techstream to the DLC3.

(3) Turn the ignition switch to ON.

(4) Turn the Techstream on.

(5) Enter the following menus: Chassis / EMPS / Utility / Torque Sensor Adjustment.

NOTICE:

Set the steering wheel to the center point and align the front tires straight ahead.
Do not turn the steering wheel sharply.
Do not touch the steering wheel during the torque sensor zero point calibration (for 3 seconds).

System Description

SYSTEM DESCRIPTION 1. DESCRIPTION The power steering system generates torque through the operation of the motor and the reduction gear installed on the column shaft in order to assist ...

Problem Symptoms Table

PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are lis ...

Other materials about Toyota Venza:

On-vehicle Inspection
ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT WINDSHIELD WIPER MOTOR ASSEMBLY (a) for RH Side (1) Operate the windshield wiper motor assembly. (2) Stop the windshield wiper motor assembly operation. ...

Inspection
INSPECTION PROCEDURE 1. INSPECT GENERATOR CLUTCH PULLEY (a) Hold the generator rotor using SST, and turn the clutch pulley clockwise to check that the outer ring locks. SST: 09820-63021 Text in Illustration *1 ...

Check Mode Procedure
CHECK MODE PROCEDURE 1. DESCRIPTION (a) Check mode has a higher sensitivity to malfunctions and can detect malfunctions that normal mode cannot detect. Check mode can also detect all the malfunctions that normal mode can detect. In check mode, DTCs are d ...