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Home >> GMC >> 2007 >> Yukon Denali >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Automatic Transmission - 4L60-E/4L65-E/4L70-E - DTC P0973 To DTC P2771) >> DTC P1818 >> Conditions for Setting the DTC

Conditions for Setting the DTC

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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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