DTC P0643 Sensor Power Supply: Wiring Diagram
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.
ECM SPECIFICATION DATA AND REFERENCE VALUE
| TERMINAL NO. | WIRE COLOR | ITEM | CONDITION | DATA (DC Voltage) |
|---|---|---|---|---|
| 48 | SB | Sensor power supply (EVAP control system pressure sensor) | [Ignition switch: ON] | Approximately 5V |
| 49 | R/Y | Sensor power supply (Refrigerant pressure sensor) | [Ignition switch: ON] | Approximately 5V |
| 68 | W/L | Sensor power supply (Power steering pressure sensor) | [Ignition switch: ON] | Approximately 5V |
| 82 | B/R | Sensor ground (APP sensor 1) | [Engine is running]
|
Approximately 0V |
| 83 | G/W | Sensor ground (APP sensor 2) | [Engine is running]
|
Approximately 0V |
| 90 | L | Sensor power supply (APP sensor 1) | [Ignition switch: ON] | Approximately 5V |
| 91 | W/R | Sensor power supply (APP sensor 2) | [Ignition switch: ON] | Approximately 5V |
| 98 | G/R | Accelerator pedal position sensor 2 | [Ignition switch: ON]
|
0.25 - 0.50V |
[Ignition switch: ON]
|
2.0 - 2.5V | |||
| 106 | BR/W | Accelerator pedal position sensor 1 | [Ignition switch: ON]
|
0.5 - 1.0V |
[Ignition switch: ON]
|
4.2 - 4.8V |