Toyota Yaris: Power Integration System / Power Integration No.1 System Internal Failure (B235204)

Toyota Yaris XP210 (2020-2026) Reapir and Service Manual / Power Source & Network / Power Distribution / Power Integration System / 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

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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 1.5 second intervals until communication between the GTS and vehicle begins.
Inspect the fuses for circuits related to this system before performing the following procedure.
Before performing troubleshooting, check whether there are any malfunctions with the lighting system.
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PROCEDURE

CLEAR DTC

(a) Clear the DTCs.

Body Electrical > Power Integration No.1 > Clear DTCs

2.	CHECK FOR DTC

(a) Check for DTCs.

Body Electrical > Power Integration No.1 > Trouble Codes

Result	Proceed to
B235204 is output	A
B235204 is not output	B

REPLACE SEMICONDUCTOR POWER INTEGRATION ECU

USE SIMULATION METHOD TO CHECK

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