Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Problem Symptoms Table

Toyota Corolla Cross (2022-2024) Service Manual / Vehicle Interior / Theft Deterrent / Keyless Entry / Immobiliser System (w/o Smart Key System) / Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

  • Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
  • Inspect the fuses and relays related to this system before inspecting the suspected areas below.
Immobiliser System

Symptom

Suspected Area

Link

Engine does not start because no initial combustion occurs

SFI system

Engine does not start but initial combustion occurs

Proceed to "Engine does not Start but Initial Combustion Occurs"

Security indicator light does not blink

Proceed to "Security Indicator Light Does not Blink"

Key cannot be registered

Proceed to "Key Cannot be Registered"

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     Terminals Of Ecu

    TERMINALS OF ECU CHECK TRANSPONDER KEY ECU ASSEMBLY (a) Disconnect the I67 transponder key ECU assembly connector. (b) Measure the resistance and voltage according to the value(s) in the table be

     Diagnosis System

    DIAGNOSIS SYSTEM DESCRIPTION (a) The transponder key ECU assembly controls the immobiliser system. Immobiliser system data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link

     Data List / Active Test

    DATA LIST / ACTIVE TEST DATA LIST NOTICE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a

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     Inspection

    INSPECTION PROCEDURE 1. INSPECT SPIRAL CABLE SUB-ASSEMBLY NOTICE: Do not remove the steering sensor from the spiral cable sub-assembly when inspecting the spiral cable sub-assembly. Remove the steering sensor from the spiral cable sub-assembly only when replacing the spiral cable sub-asse

     Diagnosis System

    DIAGNOSIS SYSTEM DESCRIPTION (a) The battery ECU assembly has a self-diagnosis system. If the computer, hybrid control system, or a component is not working properly, the ECU records the conditions that relate to the fault. The ECU also illuminates the master warning in the combination meter assembl

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