Conditions for Running the DTC

WARNING: This page is about a different car, the 2009 GMC Yukon and 2009 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.

P0741

No input speed sensor (ISS) DTCs P0716 or P0717.
No output speed sensor (OSS) DTCs P0722 or P0723.
No TCC DTCs P0742.
No TCC PWM DTCs P2763 or P2764.
Ignition voltage between 8-18 volts.
The engine torque is greater than 50 N.m (37 lb ft).
The throttle position is 8-90 percent.
The transmission fluid temperature is 20-130°C (68-266°F).
The gear ratio is within the following ranges:
- 1.54:1-1.71:1 - 2nd gear
- 0.95:1-1.05:1 - 3rd gear
- 0.66:1-0.73:1 - 4th gear
The TCC is commanded ON for 0.1 second.
The TCC duty cycle is greater than 65 percent.

P0742

No ISS DTCs P0716 or P0717.
No OSS DTCs P0722 or P0723.
No TCC DTC P0741.
No TCC PWM DTCs P2763 or P2764.
Ignition voltage between 8-18 volts.
The transmission fluid temperature is 20-130°C (68-266°F).
The engine speed is 500-6500 RPM.
The engine torque is at least 80 N.m (59 lb ft).
The throttle position is 8-90 percent.
The commanded gear is not 1st gear and the gear ratio is 0.66:1-1.71:1.
The vehicle speed is greater than 16 km/h (10 mph).
TCC is commanded OFF.