GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
Chevrolet
🢒
2008
🢒
Optra - Mexico
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Transmission/Transaxle
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Automatic Transaxle - Aisin (81-40LE)
🢒 Park/Neutral Position Switch Inspection
Disconnect the park/neutral position (PNP) switch.
Test the continuity of each range according to the polarity and indicator circuit table.
If an incorrect range is displayed during testing, then replace the PNP switch.