DTC P1229: Sensor Power Supply: Wiring Diagram
WARNING: This page is about a different car, the 2005 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.
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.
TERMINALS AND REFERENCE VALUE TABLE
| TERMINAL NO. | WIRE COLOR | ITEM | CONDITION | DATA (DC Voltage) |
|---|---|---|---|---|
| 48 | G/O | EVAP control system pressure sensor power supply | [Ignition switch: ON] | Approximately 5V |
| 49 | BR/Y | Refrigerant pressure sensor power supply | [Ignition switch: ON] | Approximately 5V |
| 68 | BR/W | PSP sensor power supply | [Ignition switch: ON] | Approximately 5V |
| 90 | R/V | APP sensor 1 power supply | [Ignition switch: ON] | Approximately 5V |