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.

NO BLUETOOTH® AUDIO AND INTERNET RADIO SOUND (ENTERTAINMENT SYSTEM - WITH CENTER DISPLAY) - DIAGNOSTIC PROCEDURE

Step	Inspection		Action
1	VERIFY MALFUNCTION SYMPTOM Switch the ignition to ACC or ON (engine off or on). After obtaining the customer's consent, use another mobile device such as a Smartphone or Bluetooth ® enabled device and select Bluetooth ® audio or Internet radio. Is Bluetooth ® audio or Internet radio audio output?	Yes	Explain to the customer that there is a malfunction in the mobile device such as a Smartphone or a Bluetooth ® enabled device.
1		No	Go to the next step.
2	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 .)
2		No	Repair or replace the connector, then go to the next step.
3	VERIFY IF MALFUNCTION CAUSE IS CORRECTED Connect the CMU connector. Reconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.0, SKYACTIV-G 2.5] .) Switch the ignition to ACC or ON (engine off or on). Using the mobile device such as a Smartphone or the Bluetooth ® enabled device when the malfunction occurred, select Bluetooth ® audio or Internet radio. Is Bluetooth ® audio or Internet radio audio output?	Yes	Troubleshooting completed. (Explain the contents of the servicing to the customer.)
3		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]] .)