Pressure regulation
â–¶ How to fix
Check the readings from the pressure sensors on the instrument panel. Make sure none of the compressed-air lines are blocked. Erase the fault codes. Turn off the ignition. Wait for 60 seconds. Switch on the ignition again. Renew the control unit if the fault code is still active.
What you'll see
No driver-visible symptom recorded.
System reaction
No system-reaction text recorded.
Diagnostic depth
Detection
Pressures in the circuits are not plausible in relation to each other.
Possible cause
A pressure sensor is broken or the compressed air connection to a pressure sensor is blocked.