Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Power Distribution Box System Internal Failure (B235504)

DESCRIPTION

This DTC is output when the semiconductor power integration ECU detects a load malfunction.

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

CAUTION / NOTICE / HINT

NOTICE:

  • When using the GTS with the ignition switch to 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.

PROCEDURE

1.

CONFIRM PROBLEM SYMPTOMS

(a) Check that no dependent system of the power distribution box assembly is malfunctioning.

HINT:

Refer to the link for dependent systems of the power distribution box assembly.

Click here

Result

Proceed to

No dependent system of the power distribution box assembly is malfunctioning

A

A dependent system of the power distribution box assembly is malfunctioning

B

A

GO TO STEP 3

B

2.

INSPECT RELATED SYSTEMS

(a) Perform an inspection for each malfunctioning system by following "HOW TO PROCEED WITH TROUBLESHOOTING".

Result

Proceed to

No related system is malfunctioning

A

A related system is malfunctioning

B

B

REPAIR OR REPLACE MALFUNCTIONING COMPONENT

A

3.

CLEAR DTC

(a) Clear the DTCs.

Body Electrical > Power Distribution Box > Clear DTCs
NEXT

4.

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

    READ NEXT:

     Steering

    h1 {color:red;} h2 {color:blue;} h3 {color:green;}

     Power Assist Systems

     Power Steering Ecu

    SEE MORE:

     Second Row Left Seat Belt Pretensioner Deployment Control Circuit Open (B007313)

    DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Test Mode / Check Mode B007313 Second Row Left Seat Belt Pretensioner Deployment Control Circuit Open The airbag ECU assembly detects an open in the rear pretensioner s

     Installation

    INSTALLATION CAUTION / NOTICE / HINT COMPONENTS (INSTALLATION) Procedure Part Name Code 1 TRANSMISSION REVOLUTION SENSOR (NOUT) 89413M - - N*m

    © 2020-2025 Copyright www.tcorollacross.com