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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 69 (Automatic Transaxle (DTC P0740 To DTC P1820)) >> Diagnosis >> DTC P0850 (3.6L) >> Conditions for Setting the DTC >> Condition 1

Condition 1

WARNING: This page is about a different car, the 2005 Buick LaCrosse and 2005 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

The Park/Neutral switch circuit is low, 0 volts, for 100 seconds while the TCM is reporting the gear selector is in Reverse or any forward range.

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