Conditions for Running the DTC

WARNING: This page is about a different car, the 2012 GMC Yukon, 2012 Chevrolet Tahoe, and 2012 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.

The engine speed is 0-7500 RPM.
Vehicle speed is less than 200 km/h (124 mph).

P0667

DTC P0721, P0722, P0723, P215C, P0658, P0668, P0669, P0712, P0713, P06AD, or P06AE is not set.
NOT in PARK/NEUTRAL.
Vehicle speed is greater than 8 km/h (5 mph) and accelerator position is less than 20 percent for 7 seconds.

P0668

DTC P0668 has not failed this ignition cycle.

P0669

The transmission OSS parameter is greater than 200 RPM for greater than 5 seconds.
DTC P0669 has not failed this ignition cycle.