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Home >> Saturn >> 1992 >> SC Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 10 (Engine Controls - Tests W/Codes - 4.9L) >> Pcm Code Charts >> Code P091, Transaxle Range Switch Problem >> Failure Conditions
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Failure Conditions

WARNING: This page is about a different car, the 1995 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.

Park/neutral input and Park/Neutral indication from IPC are not the same, or engine starts with no Park/Neutral input, or PRNDL indication from IPC is illegal, or vehicle is in fourth gear, engine speed divided by vehicle speed is between 23 RPM/MPH and 35 RPM/MPH, and park/neutral input indicates in Park/Neutral.

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