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Home >> GMC >> 2021 >> Terrain SLT, 4WD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Theft Deterrent System >> Diagnostic Information and Procedures >> Security Indicator Malfunction (with C68) >> Diagnostic Fault Information

Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Control 2 2 1 -
Low Reference - 2 - -
1. Security LED always ON
2. Security LED inoperative