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Home >> Infiniti >> 2000 >> I30 Base, RE4F04B >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - Introduction >> Self-Diagnostic System >> Retrieving Diagnostic Trouble Codes Using Mil (Except Maxima, Quest & SENTRA) >> Diagnostic Test Mode I
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Diagnostic Test Mode I

NOTE: Test modes cannot be switched with engine running. When ignition is turned off, power to ECM will turn off after 5 seconds. ECM will then return to Diagnostic Test Mode I. Ensure test mode selector is in fully counterclockwise position when vehicle is in use.

As a bulb check, light glows when ignition is turned on and engine is not running. When vehicle is started, MIL will turn off, indicating that no malfunctions are detected. If a malfunction is detected while the engine is running, the MIL glows or flashes and a corresponding DTC will be set in ECM memory.

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