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

Toyota Yaris XP210 (2020-2022) 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

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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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  • 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

1.

CLEAR DTC

(a) Clear the DTCs.

Body Electrical > Power Distribution Box > Clear DTCs
NEXT

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

A

REPLACE POWER DISTRIBUTION BOX ASSEMBLY

B

USE SIMULATION METHOD TO CHECK

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