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Home >> Oldsmobile >> 1991 >> Toronado Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Controls - Tests W/Codes - Pcm/BCM >> Flow Charts For ECM/Pcm Codes: EO13 To EO69 >> Code EO31, Park/Neutral Switch Circuit >> Notes
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Code EO31, Park/Neutral Switch Circuit: Notes

NOTE: Complete diagnosis of Code EO31 for 3.8L (VIN L) E Body vehicles REQUIRES the use of the GM Tech 1 "Scan" tester.
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