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Home >> Pontiac >> 2009 >> Vibe Base, 2.4 0, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 152 (Automatic Transmission - 4T80-E - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P0851 or P0852 >> Conditions for Setting the DTC

Conditions for Setting the DTC

WARNING: This page is about a different car, the 2011 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.

P0851 

The Park/Neutral switch circuit voltage is low, 0 volts, for 0.01 seconds while the TCM is reporting the gear selector is in a reverse or drive gear.

P0852 

The Park/Neutral switch circuit is high, 12 volts, for 0.01 seconds while the TCM is reporting the gear selector is in Park or Neutral.