Check Tank Inner Pressure Sensor Unit
- Check that the tank inner pressure sensor has no deformation, cracks or other damage.
- Connect the dry-cell battery positive terminal to the terminal No. 3 and the battery negative terminal to the terminal No. 1, and connect the circuit tester positive side to the terminal No. 2 and the circuit tester negative side to the terminal No. 1.NOTE:
- Use new dry-cell batteries.
- Using a circuit tester, check that the initial voltage of each dry-cell battery is 1.6 V or more. And also check that the voltage of three batteries in series is between 4.8 - 5.2 V.
- For power supply, 5 V DC constant voltage power source can also be used.
- Check the voltage at a normal atmospheric pressure.
NOTE:
The atmospheric pressure at higher altitude is lower than normal. Therefore, the voltage is lower than the standard value.
| Terminal No. | Standard |
|---|---|
| 2 (+) and 1 (-) | Approx. 2.2 V (when 25°C (77°F)) |