Conditions For Running DTC P0748
WARNING: This page is about a different car, the 2002 GMC Cab & Chassis Sierra and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
DTC will run under the following conditions:
- The system voltage is greater than 11 volts at -40°F (-40°C) transmission fluid temperature or 12 volts at 302°F (150°C) transmission fluid temperature.
- The engine must be running more than 475 RPM for at least 7 seconds, and not in fuel cut-off.