Checking Full Throttle Switch Circuit
WARNING: This page is about a different car, the 2002 Infiniti QX4, 2001 Nissan Pathfinder, and 2001 Infiniti QX4. However, it is still accessible from the selected car via links, so may be relevant.
Measure voltage (backprobe) between TCM harness connector terminal No. 17 and ground while depressing accelerator slowly. When depressing accelerator pedal to wide open throttle, battery voltage should be present. When releasing accelerator pedal, no voltage should be present.