Without CONSULT-II

WARNING: This page is about a different car, the 2004 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

Throttle position sensor can be checked by voltage across terminals 41 (W) and 42 (B) of TCM.

Fig 1: Checking Throttle position sensor Voltage
Courtesy of NISSAN MOTOR CO., U.S.A.