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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 940 (Automatic Transmission - 4L60-E/4L65-E/4L70-E - DTC P0973 To DTC P2770) >> DTC P1818 >> Conditions for Setting the DTC

Conditions for Setting the DTC

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

DTC P1818 sets when the TCM detects the following condition for 5 seconds.

PARK/NEUTRAL or FORWARD range indicated with a reverse gear ratio.

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