Circuit Description
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
DTC P1571 is a type B DTC.
The Transmission Control Module (TCM) sends a signal to the Powertrain Control Module (PCM) on the requested torque signal circuit. This signal commands the PCM to limit engine torque under certain extreme driving conditions. If a fault is detected on the circuit, DTC P1571 will set.