Fault point: Converter
Test tool.
Verification scheme.
1. Confirm if there is a pull-up resistor at the site
2. Whether there is the voltage at the pulse acquisition end
3. Check if the wiring is correct
Test result: 1.
1. No pull-up resistor
2. No voltage
3. Wrong wiring
Treatment solution: 1.
1. Pull up a 3K resistor
2. Check if the wiring is correct
3. Correct wiring (if there is a problem, please consult our after-sales staff)
