Toyota Yaris: Power Integration System / Precaution
PRECAUTION
PRECAUTION FOR SEMICONDUCTOR POWER INTEGRATION ECU
(a) Do not remove or install the semiconductor power integration ECU and power distribution box assembly with the negative (-) auxiliary battery terminal connected.
NOTICE:
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After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.
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When disconnecting and reconnecting the auxiliary battery.
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(b) Make sure that the semiconductor power integration ECU and power distribution box assembly is not exposed to water, as it is not waterproof.
(c) Some load is connected to a dedicated circuit to prevent overcurrent. Therefore, parts other than those specified for the vehicle may not be able to be used.
(d) When replacing the semiconductor power integration ECU and power distribution box assembly, the system may not operate normally if the same part number is not used.
(e) Check that systems are operating normally before proceeding with troubleshooting.
Parts Location
PARTS LOCATION ILLUSTRATION
*1 SEMICONDUCTOR POWER INTEGRATION ECU *2 NO. 1 ENGINE ROOM RELAY BLOCK - STD P/I NO. 1 FUSE - INP STD NO. 1-1 FUSE ILLUSTRATION
*1 MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) *2 POWER DISTRIBUTION BOX ASSEMBLY - ECU-IGR NO...
Other information:
Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Lost Communication with Alternator Missing Message (P161A87)
DESCRIPTION The ECM communicates with the generator assembly via LIN communication. If a LIN communication error is detected, the ECM stores this DTC. DTC No. Detection Item DTC Detection Condition Trouble Area MIL Note P161A87 Lost Communication with Alternator Missing Message Generator assembly or ECM communication stops for approximately 17 minutes or more with the ignition switch ON (1 trip detection logic) Wire harness or connector Generator assembly ECM Comes on SAE Code: P161A WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before performing the following inspection procedure...
Toyota Yaris XP210 (2020-2026) Reapir and Service Manual: Check For Intermittent Problems
CHECK FOR INTERMITTENT PROBLEMS NOTICE: If the vehicle or vehicle controls are operated (for example, during initial inspection when the vehicle is brought in for repair) before vehicle control history has been read out and saved, the vehicle control history information could be lost...
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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.
