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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 827 (Automatic Transmission - 4L80-E/4L85-E - DTC P0218 To DTC P0976) >> DTC P0756 >> Conditions for Setting the DTC >> Condition 1

Condition 1

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

The TCM commands 1st gear, and the gear ratio indicates 4th gear, 0.98:1 to 1.03:1 for 2.5 seconds or greater.

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