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:

     On-vehicle Inspection

    ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT VACUUM SENSOR ASSEMBLY (a) Connect the GTS to the DLC3. (b) Start the engine. (c) Turn the ignition switch off. (d) Turn the ignition switch to ON. (e) Turn the GTS on. (f) Enter the following menus: Powertrain / Stop and Start / Data List / Brake Boo

     Precaution

    PRECAUTION PRECAUTIONS FOR DISCONNECTING AND RECONNECTING CABLE TO NEGATIVE (-) AUXILIARY BATTERY TERMINAL NOTICE: After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal. Click here HINT: When disconnecting and re

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