Conditions for Running the DTC

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

P0751 or P0752

No other ECM or TCM DTCs are set.
Ignition voltage is 8.6 V or greater.
The engine speed is 400 RPM or greater for 5 seconds.
The IMS range is not PARK, NEUTRAL or REVERSE.
High Side Driver (HSD) is enabled.
The transmission fluid temperature is -6.6°C (20°F).
Accelerator pedal position signal is valid.
The throttle position signal is valid.
The output shaft speed is 0 RPM or greater.
The TCM must receive a valid torque signal from the ECM.