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Home >> Cadillac >> 1989 >> Seville Base >> Repair and Diagnosis >> Engine Performance >> System >> DFI ECM Tests W/Codes >> Diagnostic Charts >> ECM Code EO24 - Speed Sensor Circuit Problem >> Test Conditions
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Test Conditions

Codes EO26, EO27, EO28, EO31, EO32, and EO34 clear. Transmission in reverse or drive, and brake switch closed (not braking). ISC throttle switch open. MAP less than or equal to 85 kPa. Transmission in 4th gear (4th gear switch open). Engine speed greater than or equal to 1400 RPM.

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