DTC P0643 Sensor Power Supply: Wiring Diagram
WARNING: This page is about a different car, the 2008 Nissan Maxima. 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.
ITEM CONDITION SPECIFICATION
| TERMINAL NO. | WIRE COLOR | ITEM | CONDITION | DATA (DC Voltage) |
|---|---|---|---|---|
| 48 | G | Sensor power supply (EVAP control system pressure sensor) |
[Ignition switch ON] | Approximately 5V |
| 49 | BR/W | Sensor power supply (Refrigerant pressure sensor) |
[Ignition switch ON] | Approximately 5V |
| 68 | L/Y | Sensor power supply (PSP sensor) |
[Ignition switch ON] | Approximately 5V |
| 82 | GR | Sensor ground (APP sensor 1) |
[Engine is running]
|
Approximately 0V |
| 83 | G | Sensor ground (APP sensor 2) |
[Engine is running]
|
Approximately 0V |
| 90 | LG/R | Sensor power supply (APP sensor 1) |
[Ignition switch ON] | Approximately 5V |
| 91 | P | Sensor power supply (APP sensor 2) |
[Ignition switch: ON] | Approximately 5V |
| 98 | V | Accelerator pedal position sensor 2 | [Ignition switch: ON]
|
0.28 - 0.48V |
[Ignition switch: ON]
|
More than 2.0V | |||
| 106 | W | Accelerator pedal position sensor 1 | [Ignition switch: ON]
|
0.65 - 0.87V |
[Ignition switch: ON]
|
More than 4.3V |