Diagnostic Procedure

WARNING: This page is about a different car, the 2004 Infiniti M45. However, it is still accessible from the selected car via links, so may be relevant.

Check input signals:
With CONSULT-II:
1. Start engine.
2. Select "MAIN SIGNALS" in "DATA MONITOR" mode for A/T with CONSULT-II and read out the value of "GEAR".
  
  Fig 1: Viewing ECU Input Signals In DATA MONITOR Mode
  Courtesy of NISSAN MOTOR CO., U.S.A.
3. Drive vehicle in the manual mode, and confirm that the actual gear position and the meter's indication of the position mutually coincide when the select lever is shifted to the "+ (up)" or "- (down)" side (1st --> 5th gear).
OK or NG
1. OK : Inspection end.
2. NG : Check the following items.

Fig 2: A/T Position Indicator Symptom Chart

Courtesy of NISSAN MOTOR CO., U.S.A.