Bluetooth Malfunction (without UE1)

Bluetooth Malfunction (without UE1)

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.

* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.

Circuit/System Description

The Bluetooth antenna is a small fixed antenna connected directly to the mobile telephone control module and is used to send and receive signals from a Bluetooth enabled cellular phone. The antenna is internal to the vehicle.

In order to use hands-free calling, the cellular phone must be paired to the vehicle. Up to five devices can be paired to the vehicle at one time, but only one can be connected at any given time. To pair a phone, the customer must know how to operate the Bluetooth functionality of their phone. The pairing process must only be done one time for each phone, unless that phone's information is deleted. For safety reasons, the pairing process is disabled while the vehicle is moving.

Diagnostic Aids

* The purpose of this diagnostic is to verify the ability of the mobile telephone control module to pair to a Bluetooth device.

* If a 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 test tool or equivalent can also be used to verify the ability of the customers cellular phone(s) to pair with another device.

Reference Information

Schematic Reference

Cellular Telephone Schematics Cellular Telephone Schematics

Connector End View Reference

Component Connector End Views Fuel Pump and Level Sensor Assembly

Description and Operation

Cellular Telephone Description and Operation Cellular Telephone

Electrical Information Reference

* Circuit Testing Circuit Testing

* Connector Repairs Connector Repairs

* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections

* Wiring Repairs Wiring Repairs

Scan Tool Reference

Control Module References Control Module References for scan tool information

Circuit/System Verification

1. Verify DTC B2485 is not set.

• If DTC B2485 is set
Diagnose this first, refer to DTC B2485 (without UE1) Without UE1DTC B2485 (with UE1) With UE1

• If DTC B2485 is not set

2. Set up a Bluetooth test tool or equivalent.

3. Ignition ON.

4. Verify the vehicle appears in the list of available devices when performing the discovery/search operation of the test tool.

• If the vehicle is not in the list of available devices

1. Repeat the discovery/search operation of the test tool.

2. If the vehicle is still not in the list of available devices, replace the K82 Mobile Telephone Control Module.

• If the vehicle is in the list of available devices

5. Follow the instructions provided in the Vehicle Owners Manual for pairing a device.

6. Verify successful pairing with the test tool.

• If pairing is not successful

7. Repeat the pairing process.

• If pairing is still not successful, replace the K82 Telephone Control Module.

• If pairing is successful

8. If pairing with the customers mobile telephone is not successful, try pairing with another mobile telephone.

Repair Instructions

Perform the Diagnostic Repair Verification Verification Tests after completing the repair.

Control Module References Control Module References for mobile telephone control module replacement, programming and setup.