Toyota Yaris: Seat Heater 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 |
|---|---|---|
| Seat heater for front left seat does not operate | Seat heater switch LH |
|
| Terminals of ECU |
| |
| Wire harness or connector | - | |
| Front seat cushion heater assembly LH |
| |
| Front seatback heater assembly LH |
| |
| Power distribution box assembly |
| |
| Seat heater for front right seat does not operate | Seat heater switch RH |
|
| Terminals of ECU |
| |
| Wire harness or connector | - | |
| Front seat cushion heater assembly RH |
| |
| Front seatback heater assembly RH |
| |
| Power distribution box assembly |
|
Operation Check
OPERATION CHECK CHECK FRONT SEAT HEATER (a) for LH Side: (1) Turn the ignition switch to ON. (2) Set the seat heater switch LH to "HI" or "LO" and check that the seat heater operates...
Terminals Of Ecu
TERMINALS OF ECU CHECK POWER DISTRIBUTION BOX ASSEMBLY
(a) Remove the power distribution box assembly. Click here
(b) Reconnect the power distribution box assembly connectors...
Other information:
Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: Lack of Power
DESCRIPTION Problem Symptom Suspected Area Trouble Area Engine speed fluctuation due to abnormal combustion Idle speed too low or high Strong engine vibration due to above symptoms Ignition malfunction Deviation in air fuel ratio (Excessive or insufficient intake air volume or fuel supply) Insufficient compression Changes in load from another system Ignition system Spark plug Ignition coil assembly Fuel system Direct fuel injector assembly Port fuel injector assembly Fuel pump assembly (for high pressure side) Fuel pump (for low pressure side) Fuel pump control circuit Fuel suction plate sub-assembly Fuel main valve assembly Fuel line Purge VSV system Fuel quality (existence of foreign matter, degradation) Intake and exhaust systems Mass air flow meter sub-assembly Intake system (Air leaks or deposit accumulation) Throttle body with motor assembly Air fuel ratio sensor (sensor 1) Air fuel ratio sensor (sensor 2) Cam timing oil control solenoid assembly Variable Valve Timing system (VVT system) Other control systems ECM Wire harness or connector Knock control sensor Engine coolant temperature sensor Engine Water control valve Engine assembly High load from another system Air conditioning system Power steering system Electrical load signal system SYMPTOM AND CAUSE OF SYSTEM MALFUNCTION HINT: The following are descriptions of the characteristics of each system malfunction...
Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: Components
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Front Seat Belt Pretensioners
The front seat belt pretensioners are designed to deploy in moderate or severe frontal, near frontal collisions.
In addition, the pretensioners operate when a side collision or a rollover accident is detected. The pretensioners operate differently depending on what types of air bags are equipped. For more details about the seat belt pretensioner operation, refer to the SRS Air Bag Deployment Criteria.
