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

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 1.5 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.

    Click here

PROCEDURE

1.

CLEAR DTC

(a) Clear the DTCs.

Body Electrical > Power Integration No.1 > Clear DTCs
NEXT

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

A

REPLACE SEMICONDUCTOR POWER INTEGRATION ECU

B

USE SIMULATION METHOD TO CHECK

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    Categories

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    Before refueling, close all the doors, windows, and the liftgate/trunk lid, and switch the ignition OFF.

    To open the fuel-filler lid, pull the remote fuel-filler lid release.

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