Diagnostic procedure

When performing an asterisked (*) troubleshooting inspection, slightly shake the wiring harness and connectors while performing the inspection to discover whether poor contact points are the cause of any intermittent malfunction. If there is a problem, verify that the connectors, terminals and wiring harness are connected correctly and undamaged.

STEP	INSPECTION		ACTION
1	Verify if the customer's cellular phone is a Hands-free telephone system-enabled model by referring to following URL. http://www.mazdausa.com/MusaWeb/displayPage.action?pageParameter=bluetoothHandsFreeSystem Is the customer's cellular phone a Hands-free telephone system-enabled model?	Yes	Go to the next step.
1		No	Explain to the customer that the customer's cellular phone is not a Hands-free telephone system-enabled model.
2	Verify that the cellular phone is communicating with the Bluetooth unit. Does the cellular phone connect to the Bluetooth unit via Bluetooth when the Hands-free telephone system is activated?	Yes	Enter a cellular phone signal transmission area and reinspect the Bluetooth system operation.
2		No	Go to the next step.
3	Inspect the cellular phone condition while the hands free phone does not operate. Can the following conditions be verified? Low battery voltage Power is off Out of signal transmission area	Yes	Enter a cellular phone signal transmission area and reinspect the Bluetooth system operation.
3		No	Go to the next step.
4	Does the cellular phone set up to the Bluetooth unit?	Yes	Set up the cellular phone to the Bluetooth unit.
4	Does the cellular phone set up to the Bluetooth unit?	No	Go to the next step.
5	Is the audio system sound output normal?	Yes	Go to the next step.
5	Is the audio system sound output normal?	No	Perform the audio system troubleshooting procedure.
6	Perform the Bluetooth system (hands-free telephone (HF/TEL) system) DTC inspection. Are the following DTC displayed? B116A:12/26:Er82 B116A:16/26:Er83 B116A:13/26:Er84	Yes	Go to the next step.
6		No	Go to Step 8.
7*	Inspect for open or short circuits in the following wiring harnesses and connectors, and inspect the connector connections. Between microphone terminal A and Bluetooth unit terminal A Between microphone terminal B and Bluetooth unit terminal B Between microphone terminal C and Bluetooth unit terminal C Between microphone terminal E and Bluetooth unit terminal E Are the harnesses and connector connections normal?	Yes	Replace the microphone. (See MICROPHONE REMOVAL/INSTALLATION .)
7*		No	Repair or replace malfunctioning parts.
8	Perform the Bluetooth system (hands-free telephone (HF/TEL) system) DTC inspection. Is U0498:68/26:Er81 displayed?	Yes	Inspect and repair the audio system CAN communication.
8		No	Go to the next step.
9	Inspect the Hang-up/Pick-up/Talk button. (See STEERING SWITCH INSPECTION .) Is the Hang-up/Pick-up/Talk button normal?	Yes	Go to the next step.
9		No	Replace the steering switch. (See STEERING SWITCH REMOVAL/INSTALLATION .)
10*	Inspect for open or short circuits in the following wiring harnesses and connectors, and inspect the connector connections. Between clock spring terminal 4I (part wiring harness-side) and audio unit (24-pin) terminal 1P Between clock spring terminal 4N (part wiring harness-side) and Bluetooth unit (28-pin) terminal F Between audio unit (24-pin) terminal 1O and Bluetooth unit (28-pin) terminal Y Between audio unit (24-pin) terminal 1Q and Bluetooth unit (28-pin) terminal Z Are the harnesses and connector connections normal?	Yes	Go to the next step.
10*		No	Repair or replace malfunctioning parts.
11	Call the hands-free cell phone using another cellular phone. Do the same symptoms appear?	Yes	Replace the Bluetooth unit. (See BLUETOOTH UNIT REMOVAL/INSTALLATION .)
11		No	The cellular phone Bluetooth system is malfunctioning.