3. Check Sensor Power Supply Circuits
WARNING: This page is about a different car, the 2004 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.
Check harness for short to power and short to ground, between the following terminals.
Courtesy of NISSAN MOTOR CO., U.S.A.
OK or NG
OK: GO TO 4.
NG: Repair short to ground or short to power in harness or connectors.