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: Disposal
DISPOSAL CAUTION / NOTICE / HINT CAUTION: Before performing pre-disposal deployment of any SRS part, review and closely follow all applicable environmental and hazardous material regulations. Pre-disposal deployment may be considered hazardous material treatment...
Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: Power Integration No.1 System Internal Failure (B235204)
DESCRIPTION This DTC is output when the semiconductor power integration ECU detects a Internal circuit error. DTC No. Detection Item DTC Detection Condition Trouble Area B235204 Power Integration No.1 System Internal Failure Microcomputer abnormality AD circuit trouble Semiconductor power integration ECU WIRING DIAGRAM Click here CAUTION / NOTICE / HINT NOTICE: When using the GTS with the ignition switch off to troubleshoot: Connect the GTS to the vehicle, and turn a courtesy switch on and off at 1...
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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.
