Throttle Actuator Control Module: Removal
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Release retaining tab on left side of Throttle Actuator Control (TAC) module. TAC module is located in rear of engine compartment, near underhood fuse block. Remove TAC module from mounting bracket. Disconnect TAC module harness connectors.