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Home >> Nissan-Datsun >> 1991 >> Maxima GXE >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Self-Diagnostic System >> Diagnostic Modes >> Notes
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Diagnostic Modes: Notes

Self-diagnostic system can detect ECCS malfunctions and store related trouble codes. Trouble codes, including intermittent codes, are stored in ECU memory and are available for interpretation unless codes have been cleared.

Self-diagnostic system uses dual Light Emitting Diodes (LEDs), located on ECU.