Diagnosis & Repair

For diagnosis and repair, see Fig 1-Fig 4 . For ECM location, see Figure. To check ECM inputs and outputs, see PIN VOLTAGE CHARTS article. For removal and installation of components, see REMOVAL & INSTALLATION - 4-CYLINDER article. To identify circuits referenced in testing, See ENGINE PERFORMANCE in SYSTEM WIRING DIAGRAMS article in ELECTRICAL. To check ECM power source circuit, see SYSTEM & COMPONENT TESTING - 4-CYLINDER article.

Fig 1: DTC P0100 Diagnostic Procedure (Steps 1-2)

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Fig 2: DTC P0100 Diagnostic Procedure (Steps 3-4)

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Fig 3: DTC P0100 Diagnostic Procedure (Step 5)

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Fig 4: DTC P0100 Diagnostic Procedure (Steps 6-7)

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