With GST

WARNING: This page is about a different car, the 2005 Infiniti QX56. However, it is still accessible from the selected car via links, so may be relevant.

Turn ignition switch ON.

Check voltage between ECM terminal 102 (PNP switch signal) and ground under the following conditions.

PNP SWITCH CONDITION - VOLTAGE

Condition (Gear position)	Voltage V (Known-good data)
P or N position	Approx. 0
Except the above position	BATTERY VOLTAGE (11 - 14V)

If NG, go to "DIAGNOSTIC PROCEDURE ".

Fig 1: Checking Voltage Between ECM Terminal 102 (PNP Switch Signal) & Ground
Courtesy of NISSAN MOTOR CO., U.S.A.