Have a 2005 ford expedition with 5.4 l eng its throwing code u1900 . what is this
U1900
CAN Communication Bus Fault
Vehicle Security Module
REFER to Section 418-00 .
U1900
CAN Communication Bus Fault
4WD Control Module
REFER to Section 418-00 .
U1900
CAN Communication Bus Fault-Recieve Error
Parking Aid Module
REFER to Section 418-00 .
U1900
CAN Communication Bus Fault-Recieve Error
DSM
REFER to Section 418-00 .
U1900
CAN Communication Bus Fault-Recieve Error
Instrument Cluster
If the 4X4 light is not flashing at key ON, REFER to Section 418-00 .
If the 4X4 light is flashing at key ON, REFER to Section 308-07A .
U1900
CAN Communication Bus Fault-Recieve Error
Power Liftgate Module
REFER to Section 418-00 .
U1900
CAN Communication Bus Fault-Recieve Error
Stability Assist Module
REFER to Section 418-00 .
U1900
CAN Communication Bus Fault-Recieve Error
Air Suspension Module
REFER to Section 418-00 .
which module won't communicate ? need a up scale scanner to communicate with all the modules on the vehicle. Do you know what C.A.N - controller area network is ? Serial data bus (network) All the modules on the vehicle share data on the network . U code's indicate a problem with the network .
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