DTC P0601-P0607, P1600, P1621, P1627, P1680, P1681 & P1683: Pcm Memory: Notes
WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, and 2002 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
To locate components, see COMPONENT LOCATIONS . For circuit reference, see WIRING DIAGRAMS article. For connector terminal identification, see CONNECTOR IDENTIFICATION .