Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Diagnostic Aids
- The purpose of this diagnostic is to verify the ability of the vehicle communication interface module to pair to a Bluetooth Ā® device.
- Before performing this test, verify compatibility of the cellular phone(s) the customer is attempting to use with the vehicle. Based on the cellular phone's service provider and the manufacturer's implementation of Bluetooth Ā®, not all phones support all available Bluetooth Ā® functionality. A vehicle and feature compatibility list will be provided via the GM Bluetooth Ā® website: http://www.onstar.com/web/Bluetooth/
- If the vehicle passes the following tests and a compatible device is being used, the concern may be due to a device malfunction or an incomplete/improper pairing attempt.
- A Bluetooth Ā® test tool or equivalent can also be used to verify the ability of the customers cellular phone(s) to pair with another device.
Schematic Reference
Connector End View Reference
COMPONENT CONNECTOR END VIEWS - INDEX
Description and Operation
OnStar Description and OperationĀ
Electrical Information Reference
- Circuit Testing
- Connector Repairs
- Testing for Intermittent Conditions and Poor Connections
- Wiring Repairs
Scan Tool Reference
Control Module References for scan tool information
NO RELATED
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- ā¢ You smell fuel, burning insulation, or see smoke.
- ā¢ Brakes feel soft, pull hard to one side, or make grinding noises.
- ā¢ The engine overheats, stalls repeatedly, or misfires under load.
- ā¢ You are missing required tools, torque specs, or safe lifting equipment.
- ā¢ You are not confident in the next step or safety outcome.