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Home >> Cadillac >> 1989 >> Seville Base >> Repair and Diagnosis >> Engine Performance >> System >> DFI ECM Tests W/Codes >> Diagnostic Charts >> ECM Code EO30 - Idle Speed Control Circuit Problem >> Test Conditions
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Test Conditions

Codes EO21, EO22, EO24, EO26 and EO27 clear. Vehicle speed equals zero. Throttle switch closed. Battery voltage greater than or equal to 11 volts. Engine speed is greater than 152 RPM, which is different than desired. Not a cold start.

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