Checking of A/T Position

WARNING: This page is about a different car, the 2003 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.

Place select lever in "P" position, and turn ignition switch ON (engine stop).
Check that select lever can be shifted to other than "P" position when brake pedal is depressed. Also check that select lever can be shifted from "P" position only when brake pedal is depressed.
Move the select lever and check for excessive effort, sticking, noise or rattle.
Confirm the select lever stops at each position with the feel of engagement when it is moved through all the positions. Check whether or not the actual position the select lever is in matches the positions shown by the shift position indicator and the transmission body.
The method of operating the lever to individual positions correctly should be as shown in the figure.

Fig 1: Checking A/T Positions
Courtesy of NISSAN MOTOR CO., U.S.A.
When selector button is pressed in "P", "R", or "N" position without applying forward/backward force to select lever, check button operation for sticking.
Confirm the back-up lamps illuminate only when lever is placed in the "R" position. Confirm the back-up lamps does not illuminate when select lever is in the "P" or "N" position with the lever pushed against the "R" position.
Confirm the engine can only be started with the select lever in the "P" and "N" positions. And confirm that the engine can be started when the select lever is being moved back and front in the "P" position.
Check that transmission is locked completely in "P" position.
When select lever is set to manual shift gate, check that manual mode is displayed on combination meter. Shift select lever to "+" and "-" sides, and check that set shift position changes. (Only while a car is operating)