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Home >> Buick >> 1989 >> Reatta >> Repair and Diagnosis >> Engine Performance >> System >> 3.8L BCM Tests W/Codes >> Operation >> Exiting "Service Mode" >> Toronado (ECC Panel)
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Toronado (ECC Panel)

To exit diagnostics, depress "BI-LEVEL" button on ECC or turn ignition off. Trouble codes are not erased when this is done.