Communications Network - DTC Chart

DTC CHART - COMMUNICATIONS NETWORK

NOTE:DTC U1900 will set in a module that is reporting a communication fault from another module on the data bus. The module that reports the fault is not the problem module.
NOTE:Some modules on this vehicle utilize a 5-character DTC followed by a 2-character failure type code. The failure type code provides information about specific fault conditions such as opens, or shorts to ground. Continuous memory DTCs have an additional 2-character DTC status code suffix to assist in determining DTC history.

Control Systems DTC Chart