Power Steering Pressure Sensor

WARNING: This page is about a different car, the 2004 Infiniti FX45. However, it is still accessible from the selected car via links, so may be relevant.

Reconnect all harness connectors disconnected.
Start engine and let it idle.
Check voltage between ECM terminal 12 and ground under the following conditions.

Fig 1: Testing ECM Connector Terminal 12 Voltage
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: ECM Connector Terminal 12 Specifications
Courtesy of NISSAN MOTOR CO., U.S.A.