U30 Low Warning
â–¶ How to fix
• Reset DTC • Toggle ignition key to "key off" and await system reset then "key on" i.e. system wake up. • Read out DTC's again • Check external supply circuit (e.g. cables and connectors) • Replace cable harness if damaged
What you'll see
No driver-visible symptom recorded.
System reaction
Continue normal operation down to 8 V.
Diagnostic depth
Detection
The following DCC2 event is active: U30LowWarningLimit Set when external input voltage is lower than 22V.
Possible cause
External power supply to unit is low.