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Home >> GMC >> 2019 >> Terrain SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 137 (Cellular System, Entertainment System, And Navigation System - Diagnostic Information And Procedures) >> Diagnostic Information And Procedures >> OnStar Button LED Malfunction >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2018 GMC Terrain and 2018 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
10 V Reference B2476 02 B2476 04 B2476 04 -
Red LED Control Terminal 14 1 1 2 -
Green LED Control Terminal 15 1 1 2 -
Ground - B2476 04 - -
1. OnStar® LED Inoperative
2. LED Illuminated At All Times