Matrix XRS 2WD L4-1.8L (2ZZ-GE) (2003)
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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. So, as much information as possible should be gathered and its relationship with the problem symptoms should be
correctly ascertained for a reference in troubleshooting. A customer problem analysis table is provided in the applicable diagnostics section for
each system for your use.
Important Points in the Customer Problem Analysis
What............................................................................................................................................................................................Vehicle model, system name
When....................................................................................................................................................................................Date, time, occurrence frequency
Where..............................................................................................................................................................................................................Road conditions
Under what conditions?...............................................................................................................Running conditions, driving conditions, weather conditions
How did it happen?.....................................................................................................................................................................................Problem symptoms
(Sample) Supplemental restraint system check sheet.
Symptom Confirmation and Diagnostic Trouble Code
SYMPTOM CONFIRMATION AND DIAGNOSTIC TROUBLE CODE
HINT:
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The diagnostic system in COROLLA MATRIX has various functions. The first function is the Diagnostic Trouble Code (DTC) Check in which a
malfunction in the signal circuits to the ECU is stored in code form in the ECU memory. Another function is the Input Signal Check which checks