• | Perform the Diagnostic System Check - Vehicle prior to using the diagnostic procedure. |
• | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
• | Diagnostic Procedure Instructions provides an overview of each diagnostic category Circuit/System Description. |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
---|---|---|---|---|
Bluetooth Switch Signal | 1, 2 | 1, 2 | 1, 2 | -- |
Bluetooth Module Microphone Signal (+) | 2, 3 | 2, 3 | 2, 3 | -- |
Bluetooth Module Microphone Signal (1) | 2, 3 | 2, 3 | 2, 3 | -- |
1. Bluetooth Communication Inoperative. 2. Bluetooth Communication Malfunction. 3. Person called can clearly be heard but the person called is unable to hear the caller. |
The Bluetooth Module is a cellular device that is powered by battery positive voltage, Ignition I voltage and ground from a patch harness connected between the radio connectors. It allows a cordless link between a cellular telephone and the vehicle Bluetooth communication system. The Bluetooth Module is not connected to the GMLAN system. It communicates with the cellular telephone via low-power radio waves. Due to the low power of the signal, approximately 1 milliwatt, a cellular telephone must be within 10 meters (32 feet) of the vehicle's Bluetooth module to connect an operate.
Bluetooth Communication Schematics
Bluetooth Communication Description and Operation
Bluetooth Communication Component Views
• | Circuit Testing |
• | Wiring Repairs |
Important: Perform this diagnostic if the person called can clearly be heard but the person called is unable to hear the caller.
Ignition ON, press Bluetooth button and make a phone call. Verify that your voice cannot be heard clearly by the person called.
⇒ | If greater than the specified value, test the ground circuit for an open/high resistance. If the circuit tests normal, replace the Bluetooth module. |
⇒ | If greater than the specified range, test the signal circuit for a short to voltage. |
⇒ | If less than the specified range, test the voltage reference circuit for a short to ground or an open/high resistance. |
⇒ | If the circuit tests normal, replace the Bluetooth module. |
⇒ | If the resistance is not within the specified range, replace the Bluetooth microphone assembly. |
For component removal and installation refer to the accessory fitting instructions. Perform the Diagnostic Repair Verification after completing the diagnostic procedure.