Diagnostic Trouble Code (DTC) Displaying. GMC Truck Savana 1999

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 1999 🢒 Savana 🢒 Body and Accessories 🢒 Theft Deterrent 🢒 Diagnostic Trouble Code (DTC) Displaying

Diagnostic Trouble Code (DTC) Displaying Domestic

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	Data Link Communications System Check in Data Link Communications
U1255 Current	Class 2 Communication Malfunction	Data Link Communications System Check in Data Link Communications
C0559 Current	EEPROM Checksum Error	DTC C0559 EEPROM Checksum Error
B2947 Current	Security System Sensor Power Circuit Low	DTC B2947 Security System Sensor Power CKT Low
B3033 Current	Security System Indicates Tamper	DTC B3033 Security System Indicates Tamper
B2960 Current	Security System Sensor Data Incorrect But Valid	DTC B2960 Sec Sys Sensor Data Incorrect but Valid
B2957 Current	Security System Sensor Data Circuit Low	DTC B2957 Security System Sensor Data Circuit Low
B2958 Current or History	Security System Sensor Data Circuit High	DTC B2958 Security System Sensor Data Circuit High
B2948 Current	Security System Sensor Power Circuit High	DTC B2948 Security System Sensor Power CKT High
B3031 CUrrent	Security System Controller in Learn Mode	DTC B3031 Security System Controller in Learn Mode
B0688 Current	Security System Indicator Circuit High	DTC B0688 Security System Indicator Circuit High

The DTCs listed below are in order of importance. Diagnose the DTCs in the same order

Diagnostic Trouble Code	Description	Action
B0687 Current	Security System Indicator Circuit Low	DTC B0687 Security System Indicator Circuit Low
B0688 Current	Security System Indicator Circuit High	DTC B0688 Security System Indicator Circuit High
B1007 Current	Loss of Class 2 Communication with VCM	DTC B1007 EEPROM Write Error
U1016 Current	Loss of Class 2 Communication with VCM	DTC U1016 PCM Class 2 Serial Data Line Fault
U1193 Current	Loss of VIM Class 2 Communications	DTC U1193 Loss of VIM Class 2 Communication
U1255 Current	Class 2 Communication Malfunction	DTC U1255 Class 2 Communication Malfunction