Conditions for Running the DTC: P1684

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Cadillac Escalade EXT. However, it is still accessible from the selected car via links, so may be relevant.

No DTCs P0711, P0712, P0713, P0716, P0717, P0722, P0723, or P1684.
DTC P1684 has not passed this key ON.
The TCM power up temperature is between -39 and +149°C (-38 and +300°F).