Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Diagnostic Trouble Code Chart

Toyota Corolla Cross (2022-2025) Service Manual / Vehicle Exterior / Acoustic Vehicle Alerting System / Acoustic Vehicle Alerting System / Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

Acoustic Vehicle Alerting System

DTC No.

Detection Item

Link

B135013

Acoustic Vehicle Alerting Speaker Circuit Open

B135019

Acoustic Vehicle Alerting Speaker Circuit Current Above Threshold

U012987

Lost Communication With Brake System Control Module Missing Message

U014087

Lost Communication with Body Control Module Missing Message

U029387

Lost Communication with Hybrid/EV Powertrain Control Module Missing Message

U032257

Software Incompatibility with Body Control Module Invalid/Incompatible Software Component

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    DESCRIPTION The vehicle approaching speaker assembly circuit consists of the vehicle approaching speaker controller and vehicle approaching speaker assembly. This DTC is stored when a malfunction is

     Lost Communication With Brake System Control Module Missing Message (U012987,U014087,U029387)

    DESCRIPTION These DTCs are stored when the CAN communication system is malfunctioning. DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from Priority U0

     Software Incompatibility with Body Control Module Invalid/Incompatible Software Component (U032257)

    DESCRIPTION The vehicle approaching speaker controller receives vehicle information from the main body ECU (multiplex network body ECU) via CAN communication. This DTC is stored when the vehicle info

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     Removal

    REMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL) Procedure Part Name Code 1 BACK DOOR TRIM UPPER PANEL ASSEMBLY 64790B - - - 2 BACK DOOR SIDE GARNISH LH 67938A - - - 3 BACK DOOR SIDE GARNISH RH 67937B - -

     Backup Boost Converter Circuit

    DESCRIPTION A backup boost converter is built into the engine stop and start ECU. The backup boost converter helps maintain the power source voltage when the engine is restarted by stop and start control. This prevents various functions such as the audio and visual system from malfunctioning if th

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