Toyota CH-R Service Manual: Calibration

CALIBRATION

TORQUE SENSOR ZERO POINT CALIBRATION (USING TECHSTREAM)

NOTICE:

Perform torque sensor zero point calibration if any of the following conditions occur:

(a) Perform 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 assembly. Enter the following menus: Chassis / EMPS / Data List.

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

Chassis > EMPS > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
IG Power Supply	IG power source voltage	Min.: 0.0000 V Max.: 20.1531 V	8 to 16 V	Ignition switch ON

Chassis > EMPS > Data List

Tester Display
IG Power Supply

Standard Voltage:

8 to 16 V

NOTICE:

If the IG power supply voltage is 8 V or less, calibration cannot be performed. In this case, charge or replace the battery, and then perform calibration.

(b) Perform 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 DTCs before starting calibration.

(1) Align the front wheels straight ahead and center the steering wheel.

(2) Turn the ignition switch off.

(3) Connect the Techstream to the DLC3.

(4) Turn the ignition switch to ON.

(5) Turn the Techstream on.

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

Chassis > EMPS > Utility

Tester Display
Torque Sensor Adjustment

(7) Check for DTCs.

Click here

Chassis > EMPS > Trouble Codes

NOTICE:

If DTC C1515, C1516, C1534 or C1581 is output, perform troubleshooting for the corresponding DTC.

Result	See Procedure
DTC C1515 is output.
DTC C1516 is output.
DTC C1534 is output.
DTC C1581 is output.

ASSIST MAP WRITING (USING TECHSTREAM)

NOTICE:

Perform assist map writing if the following condition occurs:

The power steering ECU assembly has been replaced.

(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 / Utility / Signal Check.

Chassis > EMPS > Utility

Tester Display
Signal Check

(f) Wait for at least 5 seconds.

(g) Check for DTCs.

Click here

Chassis > EMPS > Trouble Codes

HINT:

After writing the assist map, if DTC C1581 is output, perform the troubleshooting procedure for DTC C1581.

Click here