Cellular Communication System
- General Diagnostic Information
- Diagnostics
- On-Star System Schematic
- ONSTAR System Component Location
- ONSTAR Diagnostic System Check
- On-Star Diagnostic Trouble Code List
- DTC B1000: Electronic Control Unit (Ecu) Performance
- DTC B1004: Keep Alive (KAM) Reset
- DTC B1009: EEPROM Checksum Mismatch Performance
- DTC B1327: Device Power 1 Circuit Low
- DTC B2455: Cellular Phone Microphone Circuit Malfunction
- DTC B2470: Cellular Phone Antenna Circuit Malfunction
- DTC B2476: Cellular Phone Select Service Switch Malfunction
- B2482: Cellular Phone Select Service Switch Performance
- DTC B2483: Global Positioning System (GPS) Sensor Circuit - Low
- DTC B2484: Global Positioning System (GPS) Sensor Circuit - Open
- ONSTAR Symptom Diagnostics Table
- Chart 1 - Red Led On Mirror Inoperative
- Chart 2 - ONSTAR Sound Inoperative Radio Functions Normally
- Chart 3 - ONSTAR Sound Inoperative On One Side Of Vehicle
- Chart 4 - Poor Sound While In The ONSTAR Mode
- Chart 5 - Green Led On Mirror Inoperative
- General Description
- Removal & Installation