Toyota Tundra Service Manual: Problem Symptoms Table



  • Use the table below to help determine the cause of the problem symptom. 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 the system before inspecting the suspected areas below.
LIN communication system


Suspected Area

See page

Air Conditioning Control Assembly Communication Error

LIN communication line

Air conditioning amplifier assembly

Air conditioning control assembly

Harness or connector

    Parts Location

    System Description

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