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Free to use workshop manual for your 2015+ Mk4 'ND' Mazda MX-5

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NO NAVIGATION GUIDANCE VOICE OUTPUT [ENTERTAINMENT SYSTEM [WITH CENTER DISPLAY]]

Description	NO NAVIGATION GUIDANCE VOICE OUTPUT
Description	Radio, CD, AUX/USB audio, Bluetooth^® audio, and Internet radio audio is output, but no navigation guidance audio
Possible Causes	SD card malfunction Connector poor contact or terminal damage Auxiliary jack/USB port/SD card slot hub malfunction Global positioning system (GPS) antenna malfunction CMU malfunction

Diagnostic Procedure

Step	Inspection		Action
1	VERIFY VOLUME SETTING Switch the ignition to ACC or ON (engine off or on). Select the navigation mode by operating the commander switch or the center display. Operate the navigation guidance audio by operating the commander switch or the steering switch. Is navigation guidance audio output according to the operation?	Yes	System is normal.
		No	Go to the next step.
2	VISUALLY INSPECT SD CARD Switch the ignition off. Visually inspect the SD card for looseness or damage. Is the SD card normal?	Yes	Go to the next step.
		No	System is normal. (explain to the customer that there is a malfunction in SD card.)
3	INSPECT GPS ANTENNA CONNECTOR Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) Disconnect the GPS antenna connector. Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion, or disconnection. Is the connector normal?	Yes	Go to the next step.
		No	Repair or replace the connector, then go to Step 6.
4	VERIFY IF MALFUNCTION CAUSE IS AUXILIARY JACK/USB PORT/SD CARD SLOT HUB Replace the auxiliary jack/USB port/SD card slot hub. (See AUXILIARY JACK/USB PORT/SD CARD SLOT HUB REMOVAL/INSTALLATION.) Connect all the connectors. Reconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) Insert the SD card when the malfunction occurred. Switch the ignition to ACC or ON (engine off or on). Select navigation by operating the center display or the commander switch. Set to an optional destination and operate the navigation function. Is navigation guidance audio output according to the operation?	Yes	Troubleshooting completed. (Explain the contents of the servicing to the customer.)
		No	Go to the next step.
5	VERIFY IF MALFUNCTION CAUSE IS GPS ANTENNA Switch the ignition off. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) Replace the GPS antenna. (See GLOBAL POSITIONING SYSTEM (GPS) ANTENNA REMOVAL/INSTALLATION.) Connect all the connectors. Reconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) Insert the SD card when the malfunction occurred. Switch the ignition to ACC or ON (engine off or on). Select navigation by operating the center display or the commander switch. Set to an optional destination and operate the navigation function. Is navigation guidance audio output according to the operation?	Yes	Troubleshooting completed. (Explain the contents of the servicing to the customer.)
		No	Replace the CMU, then go to the next step. (See CONNECTIVITY MASTER UNIT (CMU) REMOVAL/INSTALLATION.)
6	VERIFY IF MALFUNCTION CAUSE IS CORRECTED Switch the ignition off. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) Connect all the connectors. Reconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION.) Insert the SD card when the malfunction occurred. Switch the ignition to ACC or ON (engine off or on). Select navigation by operating the center display or the commander switch. Set to an optional destination and operate the navigation function. Is navigation guidance audio output according to the operation?	Yes	Troubleshooting completed. (Explain the contents of the servicing to the customer.)
		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]].)

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