Toyota Yaris: Power Integration System / Power Distribution Box System Internal Failure (B235504)

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual / Power Source & Network / Power Distribution / Power Integration System / 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 1.5 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
Before performing troubleshooting, check whether there are any malfunctions with the air conditioning system.
Click here
Before performing troubleshooting, check whether there are any malfunctions with the window defogger system.
Click here

PROCEDURE

CLEAR DTC

(a) Clear the DTCs.

Body Electrical > Power Distribution Box > Clear DTCs

2.	CHECK FOR DTC

(a) Check for DTCs.

Body Electrical > Power Distribution Box > Trouble Codes

Result	Proceed to
B235504 is not output	A
B235504 is output	B

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

USE SIMULATION METHOD TO CHECK

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...

IGR Diode Stuck Off (B235A9F)

DESCRIPTION This DTC is output when a diode failure between the IGP input and the IGR input in the power distribution box assembly is detected. DTC No...

Other information:

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: On-vehicle Inspection

ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR (a) Check the wire harness. (1) Disconnect the automatic light control sensor. (2) Measure the voltage according to the value(s) in the table below. Standard Voltage: Tester Connection Switch Condition Specified Condition H78-1 (CLTB) - H78-2 (CLTE) Ignition switch on (IG) 11 to 14 V If the specified condition is not met, replace the vehicle wire harness...

Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Front Radar Sensor Optical Axis Misalignment Malfunction (C1A1100)

DESCRIPTION The millimeter wave radar sensor assembly performs self-diagnosis to check for misalignment of its beam axis. If misalignment is detected, the millimeter wave radar sensor assembly stores DTC C1A1100. DTC No. Detection Item DTC Detection Condition Trouble Area C1A1100 Front Radar Sensor Optical Axis Misalignment Malfunction When the ignition switch is ON, the millimeter wave radar sensor assembly detects beam axis misalignment Millimeter wave radar sensor assembly beam axis adjustment Millimeter wave radar sensor assembly CAUTION / NOTICE / HINT NOTICE: When replacing the millimeter wave radar sensor assembly, always replace it with a new one...