Power Steering Pressure Sensor

WARNING: This page is about a different car, the 2004 Infiniti FX35. 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 Steering Pressure Sensor Output Voltage
Courtesy of NISSAN MOTOR CO., U.S.A.

Fig 2: Power Steering Pressure Sensor Specifications
Courtesy of NISSAN MOTOR CO., U.S.A.