TrCM - Charged (Service brakes ON)
System coupled, charged, parking brake OFF (vehicle at REST or DRIVE)
Service brakes applied, service tanks & spring brakes connected together
| Service Brakes | Spring Brakes | DCV (Anti Compound) |
ABS | Parking valve | PPV |
|---|---|---|---|---|---|
| ON | OFF | OFF | ON | Release Position | Open |
