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:

     Scheduled maintenance

    Scheduled maintenance should be performed at specified intervals according to the maintenance schedule. For details about maintenance items and schedules, refer to the "Scheduled Maintenance Guide" or "Owner's Manual Supplement". ■Resetting the message indicating maintenance is required After the

     Basic Inspection

    CAUTION / NOTICE / HINT When a malfunction is not confirmed by the DTC check, troubleshooting should be carried out for all circuits considered to be possible causes of the problem. In many cases, by carrying out the basic engine check shown in the following procedure, the location of the problem ca

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