Toyota Avalon Service & Repair Manual: 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 related to this system before inspecting the suspected areas below.

Symptom

Suspected Area

Link

Cooling fan does not operate

Engine coolant temperature sensor

EFI-MAIN NO. 1 relay

Cooling fan circuit

Fan with motor assembly

-

ECM

Cooling fan does not stop (continues to operates)

Engine coolant temperature sensor

Cooling fan circuit

Fan with motor assembly

-

ECM

Cooling fan speed does not change

Cooling fan circuit

Fan with motor assembly

-

ECM

    Precaution

    System Diagram

    See More:

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