Diagnostic Procedure

WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

AUTOMATIC BLUETOOTH® CONNECTION NOT POSSIBLE (ENTERTAINMENT SYSTEM - WITH CENTER DISPLAY) - DIAGNOSTIC PROCEDURE

Step	Inspection		Action
1	VERIFY MALFUNCTION SYMPTOM Select the following by operating the center display or the commander switch. Settings Devices Bluetooth Verify if the customer's Bluetooth ®-enabled device is registered/selected. Is the customer's Bluetooth ®-enabled device registered/selected to the CMU?	Yes	Go to the next step.
1		No	Register/select the customer's Bluetooth ®-enabled device. (See Bluetooth® PAIRING PROCEDURE .) Verify the malfunction symptom again, and if the malfunction is not eliminated, go to the next step.
2	VERIFY IF MALFUNCTION CAUSE IS Bluetooth ®-ENABLED DEVICE SETTING After obtaining the customer's consent, verify that the Bluetooth ®-enabled device setting is turned on. Is the Bluetooth ®-enabled device setting turned on?	Yes	Go to the next step.
2		No	Turn it on and perform the Bluetooth® pairing. (See Bluetooth® PAIRING PROCEDURE .) Verify the malfunction symptom again, and if the malfunction is not eliminated, go to the next step.
3	VERIFY IF MALFUNCTION CAUSE IS RADIO WAVE TRANSMISSION SETTING FOR Bluetooth ®-ENABLED DEVICE After obtaining the customer's consent, verify that the radio wave transmission setting for the Bluetooth ®-enabled device is turned on. Is the radio wave transmission setting for the Bluetooth ®-enabled device turned on?	Yes	Go to the next step.
3		No	Turn it on and perform the Bluetooth® pairing. (See Bluetooth® PAIRING PROCEDURE .) Verify the malfunction symptom again, and if the malfunction is not eliminated, go to the next step.
4	VERIFY IF MALFUNCTION CAUSE IS OS UPDATE FOR Bluetooth ®-ENABLED DEVICE After obtaining the customer's consent, re - perform the Bluetooth ® pairing. (See Bluetooth® PAIRING PROCEDURE .) Switch the ignition OFF. Bring the malfunctioning Bluetooth ®-enabled device into the vehicle. Switch the ignition to ACC or ON (engine off or on). Is the Bluetooth ® connection automatically?	Yes	Troubleshooting completed (explain the contents of the servicing to the customer).
4		No	Go to the next step.
5	DETERMINE IF MALFUNCTION CAUSE IS Bluetooth ®-ENABLED DEVICE Switch the ignition to ACC or ON (engine off or on). After obtaining the customer's consent, perform the Bluetooth ® pairing using other Bluetooth ®-enabled device. (See Bluetooth® PAIRING PROCEDURE .) Switch the ignition OFF. Bring the Bluetooth ®-enabled device into the vehicle. Switch the ignition to ACC or ON (engine off or on). Is the Bluetooth ® connected automatically?	Yes	Explain to the customer that the malfunction cause is the Bluetooth®-enabled device.
5		No	Go to the next step.
6	INSPECT CMU CONNECTOR Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5] .) Disconnect the CMU connector. Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection. Is the connector normal?	Yes	Replace the CMU, then go to the next step. (See CONNECTIVITY MASTER UNIT (CMU) REMOVAL/INSTALLATION .)
6		No	Repair or replace the connector, then go to the next step.
7	VERIFY IF MALFUNCTION CAUSE IS CORRECTED Switch the ignition to ACC or ON (engine off or on). After obtaining the customer's consent, perform the Bluetooth ® pairing using the malfunctioning Bluetooth ®-enabled device. (See Bluetooth® PAIRING PROCEDURE .) Switch the ignition off. Bring the Bluetooth ®-enabled device into the vehicle. Switch the ignition to ACC or ON (engine off or on). Is the Bluetooth ® connected automatically?	Yes	Troubleshooting completed (explain the contents of the servicing to the customer).
7		No	Verify the malfunction symptom in the symptom troubleshooting chart and perform the other applicable malfunction diagnosis. (See SYMPTOM TROUBLESHOOTING [ENTERTAINMENT SYSTEM [WITH CENTER DISPLAY]] .)