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Home >> Infiniti >> 2007 >> QX56 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P0451 To P1217 >> DTC P0550 PSP Sensor >> Wiring Diagram
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DTC P0550 PSP Sensor: Wiring Diagram

Fig 1: EC-PS/SEN-01 - Wiring Diagram
G04900563Courtesy of NISSAN NORTH AMERICA, INC.

Specification data are reference values and are measured between each terminal and ground.

CAUTION: Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in damage to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
INPUT/OUTPUT VOLTAGE CHART

TERMINAL NO. WIRE COLOR ITEM CONDITION DATA (DC Voltage)
12 R Power steering pressure sensor [Engine is running] 
  • Steering wheel: Being turned.
0.5 - 4.5V
[Engine is running] 
  • Steering wheel: Not being turned.
0.4 - 0.8V
67 B Sensor ground [Engine is running] 
  • Warm-up condition 
  • Idle speed
Approximately 0V
68 W/L Sensor power supply
(Power steering pressure sensor)
[Ignition switch: ON]  Approximately 5V