The DTCs listed below are in order of importance. Diagnose the DTCs in the same order
Diagnostic Trouble Code  | Description  | Action  | 
|---|---|---|
U1016 Current  | Loss of Class 2 Communication with VCM  | Refer to Diagnostic System Check - Data Link Communications in Wiring Systems  | 
U1255 Current  | Class 2 Communication Malfunction  | Refer to Diagnostic System Check - Data Link Communications in Wiring Systems  | 
C0559 Current  | EEPROM Checksum Error  | |
B2947 Current  | Security System Sensor Power Circuit Low  | |
B3033 Current  | Security System Indicates Tamper  | |
B2960 Current  | Security System Sensor Data Incorrect But Valid  | |
B2957 Current  | Security System Sensor Data Circuit Low  | |
B2958 Current or History  | Security System Sensor Data Circuit High  | |
B2948 Current  | Security System Sensor Power Circuit High  | |
B3031 CUrrent  | Security System Controller in Learn Mode  | |
B0688 Current  | Security System Indicator Circuit High  |