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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1381 (Automatic Transmission - 2ML70 - DTC P0971 To DTC P279D) >> DTC P1824, P182A-P182F, P1838, or P1839 >> Transmission Internal Mode Switch Logic

Transmission Internal Mode Switch Logic

WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Gear Selector Position Signal A Signal B Signal C Signal P
Park (P) LOW HI HI LOW
Reverse (R) LOW LOW HI HI
Neutral (N) HI LOW HI LOW
Drive (D) HI LOW LOW HI
Manual (M) HI HI LOW LOW
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