Electrical failure in valve 9 (V???) solenoid.
â–¶ How to fix
Check cables and connectors. Replace solenoid. Toggle U15 to reset fault code.
What you'll see
The valve will close independent of request from the engine management system.
System reaction
Amber engine warning lamp
Diagnostic depth
Detection
The GSC control unit is indicating too low current on the high side (B3) and too low current on the low side (B4) of the solenoid controlling valve 9 (V???).
Possible cause
High pressure valve 9 Circuit Short To Battery High pressure valve 9 Circuit Open High pressure valve 9 Component Internal Failure