Symptom:

WARNING: This page is about a different car, the 2002 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.

A/T does not shift from D3 to 2 ₂ when changing selector lever from D to 2 position .

CHECK PNP SWITCH CIRCUIT
With CONSULT-II

Does TCM INPUT SIGNALS in DATA MONITOR show damage to PNP switch circuit?

Without CONSULT-II

Does self-diagnosis show damage to PNP switch circuit?

Fig 1: Checking PNP Switch Circuit (1 Of 2)
Courtesy of NISSAN MOTOR CO., U.S.A.

Yes or No
1. Yes: Check PNP switch circuit. Refer to DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH .
2. No: Go to 9. A/T DOES NOT SHIFT: D1 --> D2 OR DOES NOT KICKDOWN: D4 --> D2 .