ONSTAR (Diagnostics)
- Basic Diagnostic Procedure
- General Description
- Electrical Components Location
- Control Module I/O Signal
- Read Diagnostic Trouble Code (DTC)
- Output Mode
- Clear Memory Mode
- OnStar(R) LED Illumination Pattern
- List of Diagnostic Trouble Code (DTC)
- Diagnostics Chart with Trouble Code
- Diagnosis for Each Symptom