Toyota Corolla Cross: Horn System

Parts Location

PARTS LOCATION

ILLUSTRATION

ILLUSTRATION

System Diagram

SYSTEM DIAGRAM

Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

NOTICE:

• When replacing the power distribution box assembly, the system may not operate normally if the same part number is not used.
• Before replacing the main body ECU (multiplex network body ECU), refer to Registration.*1
  • for HEV Model:

    Click here

  • for Gasoline Model:

    Click here

  • *1: w/ Smart Key System

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.

Data List / Active Test

DATA LIST / ACTIVE TEST

ACTIVE TEST

HINT:

Using the GTS to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

(a) Perform the Active Test according to the display on the GTS.

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