Parking brake function - Not confirmed hot runner
â–¶ How to fix
Workshop action is not needed. The DTC gets passive if sufficient supply pressure is available.
What you'll see
No driver-visible symptom recorded.
System reaction
Inlet valve is continuously activated. No Lamp warning lamp.
Diagnostic depth
Detection
Supply pressure is measured to be insufficient after finishing secondary braking triggered by HCU or external ECU.
Possible cause
Supply pressure decreases under SupplyPressureLimit EEPROM parameter during secondary braking triggered by HCU or external ECU.