| Common errorcodes |
| 0000 | Hydraulic unit: pressure sensor, plausibility |
| 0000 | Brake pedal sinks |
| 0001 | Solenoid valve relay coil or contact - circuit open |
| 0001 | No oil pressure to one or more wheels |
| 0002 | Air in brake system |
| 0004 | No brake pressure / poor braking |
| 0005 | Brake sticks |
| 0006 | Weak brake pedal |
| 4121 | valve relay |