U0004 High Speed Controller Area Network (CAN) Communication Bus (+) Low

U0004 High Speed Controller Area Network (CAN) Communication Bus (+) Low

OBD Code:
System:
Subsystem:

U0004 – (ASE)
Network Communication
Fuel & Air metering, Auxiliary emission controls

Trouble Code Description: High Speed Controller Area Network (CAN) Communication Bus (+) Low

Location:
Analysis:

Possible Causes:

Tech description: