GM Service Manual Online
For 1990-2009 cars only

Diagnostic Trouble Code (DTC) List/Type Export

Diagnostic Trouble Code

Description

B0687

Security System Indicator Circuit Low

B0688

Security System Indicator Circuit High

B1007

EEPROM Write Error

U1016

Loss of VCM Class 2 Communications

U1193

Loss of VIM Class 2 Communications

U1255

Class 2 Communications Malfunction

Diagnostic Trouble Code (DTC) List/Type Domestic

DTC

Description

MIL Illuminated

U1255

DTC U1000 and DTC U1255 Class 2 Communication Malfunction

--

U1301

DTC U1301 Class 2 Data Link High

--

U1016

DTC U1001-U1254 Lost Communication with XXX

--

B3031

DTC B3031 Security System Controller in Learn Mode

Security

B3033

DTC B3033 Security System Indicates Tamper

Security

B2958

DTC B2958 Security System Sensor Data Circuit High

Security

B2957

DTC B2957 Security System Sensor Data Circuit Low

Security

B2960

DTC B2960 Sec Sys Sensor Data Incorrect but Valid

Security

B2948

DTC B2948 Security System Sensor Power CKT High

Security

B2947

DTC B2947 Security System Sensor Power CKT Low

Security