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Self-Diagnostic System: Notes

NOTE: ECM diagnostic memory is retained by direct power supply from battery. Memory is not erased by turning off ignition, but it will be erased if battery or ECM is disconnected.

Self-diagnostic system monitors input and output signals through the data link connector. On all models, codes can be read using analog voltmeter. Scan tester can be used to read codes on some models. For additional information, see TESTS W/CODES article.

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