DCC CAN CommandMessage Fault
• 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 CAN circuit (e.g. cables and connectors) • Replace cable harness if damaged
What you'll see
No driver-visible symptom recorded.
System reaction
Single DCC: • VOR, 24V not charging. DCC will be disabled and enter error state and the 24-volt system will drain the 24-volt batteries. • Yellow warning lamp "24V batteries not charged" is shown in ICL Master/slaves DCC: If one of the following events are active in Master: • VOR, 24V not charging. DCC master will enter error state and be disabled. DCC slaves will be disabled and enter standby. The 24-volt system will drain the 24-volt batteries. • Yellow warning lamp "24V batteries not charged" is shown in ICL If one of the following events are active in either slave: • DCC slave will enter error state and be disabled. • DCC Master and other slave will provide charging depending on load.
Diagnostic depth
One of the following DCC2 events are active: CAN.J1939CommandTimeoutError CAN.J1939CommandContentError Observe that if DTC 347 U30HighError-DTC is active while this DTC is active then overlook that this DTC is active.
• CAN Timeout or faulty content in command message.