Bluetooth Communication Automatic Radio Mute Mode Malfunction Holden Genuine Accessory
Diagnostic Instructions
Circuit/System Description
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.
When making or receiving a call, the vehicle's audio system is automatically
set to MUTE mode. The voice of the caller is heard through the speakers of the audio
systems.
Reference Information
Schematic Reference
Bluetooth Communication Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
Bluetooth Communication Description and Operation
Component View Reference
Bluetooth Communication Component Views
Electrical Information Reference
Circuit/System Testing
- Ignition OFF, disconnect the connector at the Bluetooth microphone.
- Ignition ON, test for 2.5-3.5 volts between the signal circuit terminal
3 and ground.
⇒ | If greater than the specified range, test the signal circuit for a short to
voltage. |
⇒ | If less than the specified range, test the signal circuit for a short to ground
or an open/high resistance. |
⇒ | If the circuit tests normal, test the Bluetooth switch. |
- Ignition OFF, connect the connector at the Bluetooth microphone.
- Ignition OFF, disconnect the X2 connector at the Radio.
- Ignition ON, test for infinite resistance between the signal terminal
4 and ground.
⇒ | If not the specified value, test the signal circuit for a short to ground or
an open/high resistance. If the circuit tests normal, replace the Bluetooth module. |
- Ignition ON, slowly press the Bluetooth switch 3 times, immediately after
pressing the Bluetooth switch, test for 5.5-6.0 k/Ohm between the signal circuit terminal
4 and ground. The test value should stay within this range for about two seconds only.
⇒ | If not the specified value, test the signal circuit for a short to ground or
an open/high resistance. If the circuit tests normal, replace the Bluetooth module. |
Component Testing
Bluetooth Switch Tests
- Ignition OFF, disconnect the connector at the Bluetooth switch.
- Test for infinite resistance between the following terminals:
⇒ | If not the specified value, replace the Bluetooth switch. |
- Bluetooth switch pressed, test for 650- 700 Ohms between terminals 3 and
1.
⇒ | If the resistance is not within the specified range, replace the Bluetooth switch. |
- Bluetooth switch pressed, test for 6.2-6.8 k/Ohms between terminals 3
and 1.
⇒ | If the resistance is not within the specified range, replace the Bluetooth switch. |
Repair Instructions
For component removal and installation refer to the accessory fitting instructions.
Perform the
Diagnostic Repair Verificationafter completing the diagnostic procedure.