Service Brake Circuit 1 Air Pressure
â–¶ How to fix
Exchange the pressure sensor. If first measure does not fix the problem exchange the ECU.
What you'll see
No driver-visible symptom recorded.
System reaction
The transmitted value is set to invalid. System pressure is calculated only out of circuit pressure 22. No influence on basic functionality.
Diagnostic depth
Detection
Sensor is reported as faulty.
Possible cause
Connection lost, LIN bus error, sensor broken.