Conditions for Running the DTC
WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
P0776
- DTCs P0121, P0122, P0123, P0716, P0717, P0722, P0723, or P182E are not set.
- Ignition voltage is 8.6 volts or greater.
- Engine speed is 500 RPM or greater for 5 seconds.
- Transmission fluid temperature (TFT) is equal to or greater than 0°C (32°F).
- High side driver is enabled.
- Average driven wheel speed is 80 RPM or more.
- Side to side average wheel speed between driven and non-driven wheel is 150 RPM or less for 6 seconds.
- The transmission input shaft speed is greater than 60 RPM.
- PC solenoid 2 is commanded ON.
- 3rd or 5th gear ratio has been achieved.
P0777
- DTCs P0716, P0717, P0722, P0723, or P182E are not set.
- Transmission fluid temperature (TFT) is equal to or greater than 0°C (32°F).
- Ignition voltage is 8.6 volts or greater.
- Engine speed is 500 RPM or greater for 5 seconds.
- High side driver is enabled.
- The transmission input and output shaft speed is greater than 200 RPM.
- PC solenoid 2 is commanded OFF.