Checking the electro-pneumatic valve
1. Remove the electro-pneumatic valve.
2. Using an ohmmeter, verify that there is no open circuit in the valve winding by measuring its electrical resistance.
- Rated resistance (at 20°C) — 33-39 Ohm
Otherwise, replace the valve.
3. Check valve operation:
A) Make sure air passes through the valve.
b) Apply voltage from the battery to the valve connector terminals.
V) Make sure air is not passing through the valve.
If the valve does not work properly, then replace the valve.
4. Reinstall the valve.