Conditions For Setting 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 set under the following conditions:
- The PC duty cycle exceeds 95 percent or is less than 0.5 percent.
- All conditions are met for 700 milliseconds (0.5 seconds).