Toyota Yaris: Seat Belt Warning System / Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
- Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| Symptom | Suspected Area | Link |
|---|---|---|
| Driver side seat belt warning light does not operate | Refer to the "Driver Side Seat Belt Warning Light does not Operate" |
|
| Front passenger side seat belt warning light does not operate | Refer to the "Front Passenger Side Seat Belt Warning Light does not Operate" |
|
| Rear seat belt warning light malfunction | Refer to the "Rear Seat Belt Warning Light Malfunction" |
|
| Seat belt warning light does not operate for all seats | Combination meter assembly |
|
| Seat belt warning buzzer does not operate | Check customized settings using the GTS |
|
| Combination meter assembly |
|
Customize Parameters
CUSTOMIZE PARAMETERS CUSTOMIZE SEAT BELT WARNING SYSTEM NOTICE:
When the customer requests a change in a function, first make sure that the function can be customized...
Data List / Active Test
DATA LIST / ACTIVE TEST DATA LIST NOTICE: In the following table, 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...
Other information:
Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: IG Signal Circuit
DESCRIPTION This circuit detects the ignition switch ON or off condition, and sends it to the main body ECU (multiplex network body ECU). WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the following procedure...
Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: Lost Communication with ECM/PCM "A" Missing Message (U010087,U010487,U012287)
DESCRIPTION The ECM communicates with each sensor and ECU via CAN communication. If any malfunction is detected in a CAN communication circuit, one or more CAN communication system DTCs are stored. DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from U010087 Lost Communication with ECM/PCM "A" Missing Message When the dynamic radar cruise control system is operating, a communication malfunction between the skid control ECU (brake actuator assembly) and ECM is detected for approximately 1 second or more...
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Break-In Period
No special break-in is necessary, but a few precautions in the first 600 miles (1,000 km) may add to the performance, economy, and life of the vehicle.
Do not race the engine. Do not maintain one constant speed, either slow or fast, for a long period of time. Do not drive constantly at full-throttle or high engine rpm for extended periods of time. Avoid unnecessary hard stops. Avoid full-throttle starts.