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Customer Problem Analysis

WARNING: This page is about a different car, the 2004 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • In troubleshooting, the problem symptoms must be confirmed accurately, meaning that all preconceptions must be set aside in order to make an accurate judgement. To ascertain what the problem symptoms are, it is extremely important to ask the customer about the problem and conditions when it occurred.
  • The following 5 items are important points in the problem analysis. Past problems which are thought to be unrelated and the repair history, etc. may also help in some cases. Therefore, as much information as possible should be gathered and its relationship with the problem symptoms should be correctly ascertained for use as a reference in troubleshooting. A customer problem analysis table is provided for your use in the Diagnostics Section for each system.
    Fig 1: Analysis Check Sheet Important Points
    G02932854Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    (Sample) Supplemental restraint system check sheet. 

    Fig 2: Customer Problem Analysis Check Sheet
    G02932855Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002