Toyota Camry (XV70): Calibration

CALIBRATION

DESCRIPTION

(a) Refer to the table below and then perform the necessary operation according to the part to be replaced in order to perform calibration.

Parts to be Replaced / Operation	Necessary Operation
Skid control ECU (brake actuator assembly)	Perform acceleration sensor zero point calibration and system information memorization.
Yaw rate and acceleration sensor (airbag sensor assembly)	Perform "Reset Memory". Perform acceleration sensor zero point calibration and system information memorization.
Wheel alignment adjustment	Perform "Reset Memory". Perform acceleration sensor zero point calibration and system information memorization.

UTILITY ITEMS

Utility Items	Main Purpose	Link
All Readiness	Confirm if DTC judgment has been completed.	Refer to calibration
Calibration	Enter Dealer Mode (Calibration) and perform acceleration sensor zero point calibration and system information memorization.	Refer to calibration
Inspection Mode	Enter Inspection Mode which prohibits operation of VSC and TRAC.	Refer to calibration
Signal Check	Enter Dealer Mode (Signal Check) and perform a signal inspection of the vehicle stability control system.
Vehicle Control History (RoB)	View vehicle control history (RoB).
Reset Memory	Clear acceleration sensor zero point calibration data and system information.	Refer to calibration

ACCELERATION SENSOR ZERO POINT CALIBRATION AND SYSTEM INFORMATION MEMORIZATION

NOTICE:

• After replacing the skid control ECU (brake actuator assembly), perform acceleration sensor zero point calibration and system information memorization.
• After replacing or reinstalling the yaw rate and acceleration sensor (airbag sensor assembly), perform acceleration sensor zero point calibration and system information memorization after performing "Reset Memory".
• As the acceleration sensor zero point cannot be stored again until the current zero point is cleared, perform "Reset Memory" and acceleration sensor zero point calibration and system information memorization after replacing or removing and installing the yaw rate and acceleration sensor (airbag sensor assembly).
• While obtaining the zero point, keep the vehicle stationary and do not vibrate, tilt, move, or shake it.
• Be sure to perform this procedure on a level surface (with an inclination of less than 0.45 degrees).
• While obtaining the zero point, make sure the tire pressure is as specified and the vehicle is in full contact with the ground (not lifted up or loaded).

HINT:

When entering Dealer Mode (Calibration), the skid control ECU (brake actuator assembly) communicates with the forward recognition camera to judge whether the vehicle is equipped with the pre-collision system. Therefore, do not exit Dealer Mode (Calibration) within 5 seconds of entering Dealer Mode (Calibration).

(a) Clear the zero point calibration data and system information.

(1) Turn the ignition switch off.

(2) Apply the parking brake.

(3) Check that the shift lever is in P.

(4) Connect the Techstream to the DLC3.

(5) Turn the ignition switch to ON.

(6) Turn the Techstream on.

(7) Select the skid control ECU (brake actuator assembly) to clear the zero point calibration data using the Techstream. Enter the following menus: Chassis / Brake / Utility / Reset Memory.

Chassis > Brake > Utility

Tester Display
Reset Memory

(8) Using the Techstream, perform "Reset Memory".

NOTICE:

After perform "Reset Memory", the ABS warning light, brake system warning light (red indicator) and slip indicator light illuminate. If the vehicle is driven with the memory cleared, DTCs C124A00 and C051D54 will be stored.

(b) Perform acceleration sensor zero point calibration and system information memorization.

HINT:

• Acceleration sensor zero point calibration and system information memorization are automatically performed immediately after Dealer Mode (Calibration) is entered.
• If system information memorization has not yet been performed, the slip indicator light will remain on and DTC C124A00 will be stored.
• If acceleration sensor zero point calibration is not successful, the slip indicator light will remain on and DTC C051D54 will be stored.

(1) Turn the ignition switch off.

(2) Apply the parking brake.

(3) Check that the shift lever is in P.

(4) Connect the Techstream to the DLC3.

(5) Turn the ignition switch to ON.

(6) Check that the steering wheel is centered.

(7) Turn the Techstream on.

(8) Switch the skid control ECU (brake actuator assembly) to calibration using the Techstream. Enter the following menus: Chassis / Brake / Utility / Calibration.

Chassis > Brake > Utility

Tester Display
Calibration

(9) Using the Techstream, perform "Calibration" and enter Dealer Mode (Calibration).

(10) Confirm that the ABS warning light and slip indicator light indicate the Dealer Mode pattern (blinking at 0.25 seconds intervals).

HINT:

• After "Calibration" has successfully completed, the ABS warning light and slip indicator light indicate the Dealer Mode pattern (blinking at 0.25 seconds intervals).
• The slip indicator light may illuminate for approximately 7 seconds before learning successfully completes.
• Do not exit Dealer Mode (Calibration) within 5 seconds of entering Dealer Mode (Calibration). If Dealer Mode (Calibration) is exited within 5 seconds of entering Dealer Mode (Calibration), DTC U023A87 may be stored. If DTC U023A87 is output after exiting Dealer Mode (Calibration), enter Dealer Mode (Calibration) again, wait at least 5 seconds, then recheck for DTCs.

(11) Turn the ignition switch off.

(12) Disconnect the Techstream.

ALL READINESS

HINT:

• With "All Readiness", you can check whether or not the DTC judgment has been completed by using the Techstream.
• You should check "All Readiness" after simulating malfunction symptoms or for validation after finishing repairs.

(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) Clear the DTCs even if no DTCs are stored. Enter the following menus: Chassis / Brake / Trouble Codes.

Click here

Chassis > Brake > Clear DTCs

(f) Press the DTC clear button.

(g) Turn the ignition switch off.

(h) Start the engine.

(i) Perform the DTC judgment driving pattern to run the DTC judgment.

(j) Enter the following menus: Chassis / Brake / Utility / All Readiness.

Chassis > Brake > Utility

Tester Display
All Readiness

(k) Input the DTC to be confirmed.

(l) Check the DTC judgment result.

Techstream Display	Description
Normal	DTC judgment completed System normal
Abnormal	DTC judgment completed System abnormal
Incomplete	DTC judgment not completed Perform the driving pattern
N/A	Unable to perform DTC judgment Number of DTCs which do not fulfill DTC preconditions has reached ECU memory limit Perform the driving pattern

If the judgment result shows Incomplete or N/A, perform the DTC confirmation driving pattern again.

INSPECTION MODE (WHEN USING TECHSTREAM)

When testing with a 2-wheel drum tester such as speedometer tester, combination tester for the speedometer and brakes, or chassis dynamometer, or when jacking up the front wheels and turning the wheels, perform the following procedure to enter Inspection Mode and disable the TRAC and VSC systems.

CAUTION:

• Do not use the drum tester with any of the lock chains disconnected.
• Using the drum tester with a lock chain disconnected could cause the vehicle to begin moving unexpectedly.
• Do not use the drum tester while the TRAC or VSC is able to operate.
• TRAC or VSC operation could cause the vehicle to begin moving unexpectedly.

HINT:

When the system is in Inspection Mode, TRAC and VSC are disabled.

(a) Activating Inspection Mode

NOTICE:

• Inspection Mode will be canceled when the ignition switch is turned off. Make sure to enter Inspection Mode again if the inspection is continued after the ignition switch is turned off.
• Never drive the vehicle while in Inspection Mode.

(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 / Brake / Utility / Inspection Mode.

Chassis > Brake > Utility

Tester Display
Inspection Mode

(6) Check that the VSC OFF indicator light comes on and "Traction Control Turned Off" is displayed on the multi-information display (Confirm that the system has entered Inspection Mode).

(b) End of Inspection Mode.

(1) Turning the ignition switch off ends Inspection Mode.

NOTICE:

Make sure to wait at least 60 seconds after entering inspection mode before turning the ignition switch off. If the ignition switch is turned off within 60 seconds after entering inspection mode, the system will reenter inspection mode when the ignition switch is turned to ON.

(2) Confirm that the VSC OFF indicator light turns off and the "Traction Control Turned Off" on the multi-information display is cleared (Confirm that Inspection Mode is canceled).

INSPECTION MODE (WHEN NOT USING TECHSTREAM)

When testing with a 2-wheel drum tester such as speedometer tester, combination tester for the speedometer and brakes, or chassis dynamometer, or when jacking up the front wheels and turning the wheels, perform the following procedure to enter Inspection Mode and disable the TRAC and VSC systems.

CAUTION:

• Do not use the drum tester with any of the lock chains disconnected.
• Using the drum tester with a lock chain disconnected could cause the vehicle to begin moving unexpectedly.
• Do not use the drum tester while the TRAC or VSC is able to operate.
• TRAC or VSC operation could cause the vehicle to begin moving unexpectedly.

HINT:

When the system is in Inspection Mode, TRAC and VSC are disabled.

(a) Activating Inspection Mode

NOTICE:

• Inspection Mode will be canceled when the ignition switch is turned off. Make sure to enter Inspection Mode again if the inspection is continued after the ignition switch is turned off.
• Never drive the vehicle while in Inspection Mode.

(1) Perform steps "D" to "H" within 30 seconds.

(2) Ensure that the ignition switch is off and the engine is stopped (Step "A").

(3) Apply the parking brake (Step "B").

(4) Make sure that the shift lever is in P (Step "C").

(5) Start the engine (Step "D").

(6) Depress and release the brake pedal twice (Step "E").

(7) While holding the brake pedal down, release and apply the parking brake twice (Step "F").

(8) With the parking brake applied, depress and release the brake pedal twice (Step "G").

(9) Check that the VSC OFF indicator light comes on and "Traction Control Turned Off" is displayed on the multi-information display (Step "H").

HINT:

If the VSC OFF indicator light does not come on and "Traction Control Turned Off" is not displayed on the multi-information display in step "H", repeat steps "A" to "H".

(b) End of Inspection Mode.

(1) Turning the ignition switch off ends Inspection Mode.

NOTICE:

Make sure to wait at least 60 seconds after entering inspection mode before turning the ignition switch off. If the ignition switch is turned off within 60 seconds after entering inspection mode, the system will reenter inspection mode when the ignition switch is turned to ON.

(2) Confirm that the VSC OFF indicator light turns off and the "Traction Control Turned Off" on the multi-information display is cleared (Confirm that Inspection Mode is canceled).

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