Toyota Yaris: Vehicle Stability Control System / How To Proceed With Troubleshooting

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual / Brake / Brake Control / Dynamic Control Systems / Vehicle Stability Control System / How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

*: Use the GTS.

PROCEDURE

1.	VEHICLE BROUGHT TO WORKSHOP

2.	CUSTOMER PROBLEM ANALYSIS

(a) Interview the customer and confirm the problem.

Click here

3.	CHECK DTC AND FREEZE FRAME DATA*

(a) Check and record DTCs and Freeze Frame Data.

(1) Check and record DTCs.

Chassis > Brake > Trouble Codes

(2) Check and record Freeze Frame Data.

(b) Clear the DTCs and Freeze Frame Data.

Chassis > Brake > Clear DTCs

(1) Reconfirm the DTCs based on the recorded DTCs and Freeze Frame Data.

Chassis > Brake > Trouble Codes

HINT:

When CAN communication system DTCs are output, repair the CAN communication system first.
Click here
If DTCs related to momentary interruptions are output, perform troubleshooting for those DTCs first.
Click here
If the GTS cannot communicate with the skid control ECU (brake actuator assembly), inspect the CAN communication system.
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If there is no response from the skid control ECU (brake actuator assembly), inspect the supply power circuit.
Click here

(d) Check the Vehicle Control History.

Result	Proceed to
DTCs are not output. (Problem symptom occurs.)	A
DTCs are output.	B
DTCs are not output. (Problem symptom does not occur.)	C
DTCs are not output. (Vehicle control history occurs.)	D

PROBLEM SYMPTOMS TABLE

REPAIR CIRCUITS INDICATED BY OUTPUT DTCS*

USE SIMULATION METHOD TO CHECK

PERFORM TROUBLESHOOTING AND REPAIR REGARDING VEHICLE CONTROL HISTORY*

System Diagram

S..

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...

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