Toyota Yaris: Vehicle Stability Control System / Brake Warning Light does not Come ON
DESCRIPTION
The skid control ECU (brake actuator assembly) controls the brake system warning light in the combination meter assembly via CAN communication.
CAUTION / NOTICE / HINT
NOTICE:
After replacing the skid control ECU (brake actuator assembly), perform "Calibration".
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PROCEDURE
| 1. | CHECK GTS OUTPUT (CAN COMMUNICATION SYSTEM) |
(a) Operate the GTS, and check for DTCs related to the CAN communication system.
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| Result | Proceed to |
|---|---|
| Any CAN communication system relating DTCs are output | A |
| None of the above conditions are met | B |
| A |
 | INSPECT CAN COMMUNICATION SYSTEM |
|
| 2. | INSPECT COMBINATION METER ASSEMBLY |
(a) Perform the Active Test of the combination meter assembly using the GTS.
Body Electrical > Combination Meter > Active Test| Tester Display |
|---|
| Brake Warning |
(b) Check the combination meter assembly.
OK:
The brake system warning light turns on or off in accordance with the GTS operation.
| OK |
 | REPLACE BRAKE ACTUATOR ASSEMBLY |
| NG |
 | INSPECT METER / GAUGE SYSTEM |
Brake Warning Light Remains ON
DESCRIPTION This procedure is for troubleshooting when the brake system warning light remains on but no DTCs are output. The skid control ECU (brake actuator assembly) controls the brake system warning light in the combination meter assembly via CAN communication...
Slip Indicator Light Remains ON
DESCRIPTION This procedure is for troubleshooting when the slip indicator light remains on but no DTCs are output. The skid control ECU (brake actuator assembly) controls the slip indicator light in the combination meter assembly via CAN communication...
Other information:
Toyota Yaris XP210 (2020-2026) Owner's Manual: Installation on rear outboard seats
First, adjust the front seat to allow clearance between the child-restraint system and the front seat. Make sure the seatback is securely latched by pushing it back until it is fully locked. Expand the open seams on the rear of the seat bottom slightly to verify the locations of the LATCH lower anchors...
Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE Stop and Start System Symptom Suspected Area Link Stop and start system does not operate Refer to "Stop and Start System does not Operate" Refer to "Stop and Start System does not Operate (Battery Condition)" Restarting after a short period of time from an idling stop Refer to "Restarting after a Short Period of Time from an Idling Stop" After engine stops due to stop and start system, engine does not restart Refer to "After Engine Stops due to Stop and Start System, Engine does not Restart" Failure to restart from IG-ON engine stall Refer to "Failure to Restart from IG-ON Engine Stall" Stop and start cancel indicator does not operate Combination meter assembly Indicator circuit (CAN communication system) Engine stop and start ECU Stop and start indicator does not operate Combination meter assembly Indicator circuit (CAN communication system) Engine stop and start ECU Stop and start control cannot be canceled ECAN terminal voltage Stop and start cancel switch circuit Multi-information display screen does not change after pressing steering pad switch assembly...
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Supplemental Restraint System (SRS) Precautions
The front and side supplemental restraint systems (SRS) include different types of air bags. Please verify the different types of air bags which are equipped on your vehicle by locating the “SRS AIRBAG” location indicators. These indicators are visible in the area where the air bags are installed.
The air bags are installed in the following locations:
The steering wheel hub (driver air bag) The front passenger dashboard (front passenger air bag) The outboard sides of the front seatbacks (side air bags) The front and rear window pillars, and the roof edge along both sides (curtain air bags)