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

Toyota Yaris XP210 (2020-2025) 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

Vehicle Control History

VEHICLE CONTROL HISTORY NOTICE: Make sure to record any output Vehicle Control History codes before clearing them and checking the Vehicle Control History again...

Power Distribution Box System Internal Failure (B235504)

DESCRIPTION This DTC is output when the power distribution box assembly detects a Internal circuit error. DTC No. Detection Item DTC Detection Condition Trouble Area B235504 Power Distribution Box System Internal Failure Microcomputer abnormality AD circuit trouble The load drive output open or short trouble Power distribution box assembly 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...

Other information:

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Components

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Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Removal

REMOVAL CAUTION / NOTICE / HINT HINT: When the cable is disconnected / reconnected to the auxiliary battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used. Learning completes when vehicle is driven Effect/Inoperative Function When Necessary Procedures are not Performed Necessary Procedures Link Lane tracing assist system Drive the vehicle straight ahead at 35 km/h (22 mph) or more for 5 second or more...