Toyota Yaris: Vehicle Stability Control System / Calibration

HINT:

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

NOTICE:

• After replacing the skid control ECU (brake actuator assembly), perform "Calibration".
• If the yaw rate and acceleration sensor (airbag sensor assembly) was replaced or reinstalled, perform "Calibration".
• Perform "Calibration" with the vehicle on a level surface (within 0.25° gradient). Do not vibrate the vehicle or open or close doors during zero point calibration. To avoid vibrations due to idling, do not start the engine.
• Perform "Calibration" with the tires at the specified air pressures and all 4 wheels in contact with the ground. (Do not perform with the vehicle lifted up or load applied on lift.)

HINT:

• When entering Dealer Mode (Calibration), the skid control ECU 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).
• Performing the following procedure will perform the yaw rate and acceleration sensor zero point calibration and store system information simultaneously.
• If yaw rate and acceleration sensor zero point calibration do not complete normally, the slip indicator light illuminates and a DTC is output.

HINT:

• When "Calibration" completes normally, the ABS warning light and slip indicator light are in Dealer Mode (Calibration) display (blinking at 0.25-second intervals).
• The slip indicator light may illuminate for approximately 7 seconds until "Calibration" completes normally.
• When entering Dealer Mode (Calibration), if the parking brake is engaged, the parking brake indicator light (red) will illuminate, and if the parking brake is not engaged, the parking brake indicator light (red) will blink in the Dealer Mode pattern (blinking at 0.25 second intervals).
• When entering Dealer Mode (Calibration), the skid control ECU (brake booster with master cylinder 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).

NOTICE:

• If the ignition switch is turned to ON for more than 15 seconds with the shift lever in N and the parking brake applied after the zero point of the yaw rate and acceleration sensor has been cleared, only the zero point of the yaw rate sensor will be stored. If the vehicle is driven under these conditions, DTC C051D54 will be stored.
• When the vehicle is driven with the zero point cleared, the yaw rate and acceleration sensor zero point calibration incomplete DTC is stored.

Check For Intermittent Problems

CHECK FOR INTERMITTENT PROBLEMS CHECK FOR INTERMITTENT PROBLEMS HINT: A momentary interruption (open circuit) in the connectors and/or wire harness between the sensors and ECUs can be detected using the Data List function of the GTS...

Test Mode Procedure

TEST MODE PROCEDURE ACTIVATE DEALER MODE (SIGNAL CHECK) HINT: Signals related to the vehicle stability control system can be inspected by performing a Dealer Mode (Signal Check) inspection...

Other information:

Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: Inspection

INSPECTION PROCEDURE 1. INSPECT FRONT SEAT OUTER BELT ASSEMBLY (a) Before installing the front seat outer belt assembly, check the ELR function. NOTICE: Do not disassemble the retractor. (1) When the inclination of the retractor is 12° or less, check that the belt can be pulled from the retractor...

Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: Data List / Active Test

DATA LIST / ACTIVE TEST 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. HINT: Using the GTS to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts...