On-Board Diagnostic [Audio]: Other Mazda 3 BM

FOREWORD

1. If there is any vehicle malfunction complaint lodged by a customer, perform malfunction diagnosis according to the troubleshooting procedure.

Troubleshooting Procedure Flowchart. Scheme 188

Scheme 189

Scheme 190

1. If the malfunction does not recur, verify the malfunction cause by performing the following actions: Based on the repair order form, attempt to drive the vehicle or perform tests to replicate the malfunction, record the data at that time, and detect the malfunction cause. Shake the wiring harness or connector of the electrical component which is suspected to be the cause of the malfunction, and inspect for malfunction or occurrence of any DTCs. (Scheme 189): Shaking Wiring Harness Or Connector Of Electrical Component Inspect the female terminals on the connector of the electric component which is suspected to be the cause of the malfunction for poor connection. (Scheme 190): Inspecting Female Terminals On Connector Of Electric Component

CLEARING DTCS

Using the M-MDS

1. Connect the M-MDS (IDS) to the DLC-2. see scheme 19: Identifying DLC-2 Location
2. After the vehicle is identified, select the following items from the initialization screen of the IDS. Select "Self Test". Select "Modules". Select "ACU".
3. Verify the DTC according to the directions on the screen.
4. Press the clear button on the DTC screen to clear the DTC.
5. Switch the ignition to off.
6. Switch the ignition to ON and wait for 5 s or more.
7. Perform DTC inspection. (See «DTC INSPECTION»(ref-579466-S14057924002013100700000).)
8. Verify that no DTCs are displayed.

Scheme 191

1. Launch the on-board diagnostic test mode. (See «DTC INSPECTION»(ref-579466-S14057924002013100700000).)
2. While pressing the POWER/VOLUME switch, simultaneously press the AUDIO CONT switch for 2 s or more. (Scheme 191): POWER/VOLUME Switch And AUDIO CONT Switch
3. To stop the on-board diagnostic test mode, ignition is switched to off.

Scheme 192

1. Switch the ignition to ACC or ON.
2. Launch the on-board diagnostic test mode. (See «DTC INSPECTION»(ref-579466-S14057924002013100700000) .)
3. Select the DTC and press the CLEAR switch to clear the DTC.
4. Switch the ignition off (LOCK) to complete the on-board diagnostic test mode.

Without Display

With Display

Without Bose®

DESCRIPTION Audio unit internal malfunction or audio unit protection function operates DETECTION CONDITION Audio unit internal ECU (Power amplifier peripheral circuit) is faulted. Audio unit protection function operates due to short to ground in speaker wiring harness and speaker lead wire POSSIBLE CAUSE Audio unit connector or terminals malfunction Speaker connector or terminals malfunction Open circuit in wiring harness between the following terminals: Audio unit terminal 1A-Front door speaker (LH) terminal C Audio unit terminal 1C-Front door speaker (LH) terminal B Audio unit terminal 1D-Front door speaker (RH) terminal C Audio unit terminal 1F-Front door speaker (RH) terminal B Audio unit terminal 1S-Rear door speaker (LH) terminal C Audio unit terminal 1U-Rear door speaker (LH) terminal B Audio unit terminal 1V-Rear door speaker (RH) terminal C Audio unit terminal 1X-Rear door speaker (RH) terminal B Short to ground in wiring harness between the following terminals: Audio unit terminal 1A-Front door speaker (LH) terminal C Audio unit terminal 1C-Front door speaker (LH) terminal B Audio unit terminal 1D-Front door speaker (RH) terminal C Audio unit terminal 1F-Front door speaker (RH) terminal B Audio unit terminal 1S-Rear door speaker (LH) terminal C Audio unit terminal 1U-Rear door speaker (LH) terminal B Audio unit terminal 1V-Rear door speaker (RH) terminal C Audio unit terminal 1X-Rear door speaker (RH) terminal B Speaker malfunction Audio unit malfunction

Scheme 193

With Bose®

DESCRIPTION Audio unit internal malfunction or audio unit protection function operates DETECTION CONDITION Audio unit internal ECU (Power amplifier peripheral circuit) is faulted. Audio unit protection function operates due to short to ground in speaker circuit POSSIBLE CAUSE Audio unit connector or terminals malfunction Audio amplifier connector or terminals malfunction Open circuit in wiring harness between the following terminals: Audio unit terminal 1A-Audio amplifier terminal 1D Audio unit terminal 1C-Audio amplifier terminal 1C Audio unit terminal 1D-Audio amplifier terminal 1F Audio unit terminal 1F-Audio amplifier terminal 1E Audio unit terminal 1S-Audio amplifier terminal 1H Audio unit terminal 1U-Audio amplifier terminal 1G Audio unit terminal 1V-Audio amplifier terminal 1J Audio unit terminal 1X-Audio amplifier terminal 1I Short to ground in wiring harness between the following terminals: Audio unit terminal 1A-Audio amplifier terminal 1D Audio unit terminal 1C-Audio amplifier terminal 1C Audio unit terminal 1D-Audio amplifier terminal 1F Audio unit terminal 1F-Audio amplifier terminal 1E Audio unit terminal 1S-Audio amplifier terminal 1H Audio unit terminal 1U-Audio amplifier terminal 1G Audio unit terminal 1V-Audio amplifier terminal 1J Audio unit terminal 1X-Audio amplifier terminal 1I Audio unit malfunction

Scheme 194

1. Connect the M-MDS (IDS) to the DLC-2. see scheme 23: Identifying DLC-2 Location
2. After the vehicle is identified, select the following items from the initialization screen of the IDS. Select "Electrical". Select "Audio". Select "Audio Speaker Walkaround Test".
3. Perform the procedure according to the directions on the screen.

Scheme 195

1. Switch the ignition to ACC or ON.
2. Turn the audio unit power to ON.
3. While pressing the POWER/VOLUME switch, simultaneously press the AUTO-M switch for 0.2 s or more. see scheme 24: POWER/VOLUME Switch And AUTO-M Switch
4. Inspect according to the following table: INSPECTION DISPLAY ACTION Launch the speaker inspection mode. Does each speaker output sound in the following order?: Without Bose® Front door speaker (LH) and tweeter (LH) Front door speaker (RH) and tweeter (RH) Rear door speaker (RH) Rear door speaker (LH) With Bose® Front door speaker (LH) and tweeter (LH) and front center speaker Front door speaker (RH) and tweeter (RH) and front center speaker Rear door speaker (RH) and rear speaker (RH) and rear center speaker (4SD)/Bass-box (5HB) Rear door speaker (LH) and rear speaker (LH) and rear center speaker (4SD)/Bass-box (5HB) - Yes The speakers and the wiring harness between the audio unit and speakers are normal. No If no sound is produced from all of the speakers. (See «NO.3 NO SOUND FROM ALL SPEAKERS [ENTIRE AUDIO SYSTEM]»(ref-579469-S08307252962013100700000).) If no sound is produced from some of the speakers. (See «NO.4 NO SOUND FROM SOME SPEAKERS [ENTIRE AUDIO SYSTEM]»(ref-579469-S31041248222013100700000).)
5. Cancel the diagnostic assist function by either turning off the audio unit power or by switch the ignition to off.

1. Connect the M-MDS (IDS) to the DLC-2. (Scheme 193): Identifying DLC-2 Location
2. After the vehicle is identified, select the following items from the initialization screen of the IDS. Select "Electrical". Select "Audio". Select "AM Antenna Reception Sensitivity Test".
3. Perform the procedure according to the directions on the screen.

Scheme 196

1. Switch the ignition to ACC or ON.
2. Turn the audio unit power to ON.
3. Tune in the radio.
4. While pressing the POWER/VOLUME switch, simultaneously press the RPT/PRESET switch 2 for 0.2 s or more. (Scheme 194): POWER/VOLUME Switch And RPT/PRESET Switch
5. Inspect according to the following table: CAUTION: Even if the system is normal, radio reception may be difficult depending on where the system is inspected (indoors/outdoors, or conditions at the location). Before inspecting the system, verify that radio reception is adequate. When performing the inspection, select the best area for receiving radio frequencies. INSPECTION DISPLAY ACTION Launch the radio reception condition inspection mode. LEV 10 - LEV 5 Glass antenna, antenna amplifier, antenna feeder and audio unit are normal. LEV 4 - LEV 3 Change frequencies and re-perform the inspection. LEV 2 - LEV 0 Inspect the glass antenna and antenna amplifier and antenna feeder. (See «GLASS ANTENNA INSPECTION»(ref-579336-S09741444022013100700000).) (See «ANTENNA AMPLIFIER INSPECTION»(ref-579336-S16004196482013100700000).) (See «ANTENNA FEEDER NO.1 INSPECTION»(ref-579336-S08964172752013100700000).) (See «ANTENNA FEEDER NO.2 INSPECTION»(ref-579336-S26074739412013100700000).) (See «ANTENNA FEEDER NO.3 INSPECTION»(ref-579336-S10066113812013100700000).) If either the glass antenna or the antenna amplifier or the antenna feeder is not normal, replace the malfunctioning part. (See «FILAMENT REPAIR»(ref-579414-S04576405332013100700000).) (See «ANTENNA AMPLIFIER REMOVAL/INSTALLATION»(ref-579336-S04748276712013100700000).) (See «ANTENNA FEEDER NO.1 REMOVAL/INSTALLATION»(ref-579336-S05530631652013100700000).) (See «ANTENNA FEEDER NO.2 REMOVAL/INSTALLATION»(ref-579336-S08235075992013100700000).) (See «ANTENNA FEEDER NO.3 REMOVAL/INSTALLATION»(ref-579336-S20570515942013100700000).) If the glass antenna and antenna feeder are normal, replace the audio unit. (See «AUDIO UNIT REMOVAL/INSTALLATION»(ref-579336-S10029739652013100700000).)
6. Cancel the diagnostic assist function by either turning off the audio unit power or by switch the ignition to off.

Scheme 197

1. Switch the ignition to ACC or ON.
2. Turn the audio unit power to ON.
3. Tune in the radio.
4. While pressing the POWER/VOLUME switch, simultaneously press the SAT switch for 0.2 s or more. see scheme 27: POWER/VOLUME Switch And SAT Switch
5. Inspect according to the following table: INSPECTION DISPLAY ACTION Launch the antenna control condition inspection mode. ANT-ON Sound quality good. System is okay. Sound quality poor. Inspect the glass antenna and antenna amplifier and antenna feeder. (See «GLASS ANTENNA INSPECTION»(ref-579336-S09741444022013100700000).) (See «ANTENNA AMPLIFIER INSPECTION»(ref-579336-S16004196482013100700000).) (See «ANTENNA FEEDER NO.1 INSPECTION»(ref-579336-S08964172752013100700000).) (See «ANTENNA FEEDER NO.2 INSPECTION»(ref-579336-S26074739412013100700000).) (See «ANTENNA FEEDER NO.3 INSPECTION»(ref-579336-S10066113812013100700000).) ANT-OFF Replace the audio unit. (See «AUDIO UNIT REMOVAL/INSTALLATION»(ref-579336-S10029739652013100700000).)
6. Cancel the diagnostic assist function by either turning off the audio unit power or by switch the ignition to off.

Scheme 198

1. Switch the ignition to ACC or ON.
2. Turn the audio unit power to ON.
3. While pressing the AUTO-M switch, simultaneously press the CD switch for 3 s or more. NOTE: The AUTO-M function operates when the AUTO-M switch is pressed, however, press and hold it until the audio amplifier control condition inspection launches. see scheme 28: AUTO-M Switch And CD Switch
4. Inspect according to the following table: INSPECTION DISPLAY ACTION Launch the audio amplifier control condition inspection mode. AMP-ON System is okay. AMP-OFF Replace the audio unit. (See «AUDIO UNIT REMOVAL/INSTALLATION»(ref-579336-S10029739652013100700000).)
5. Cancel the diagnostic assist function by either turning off the audio unit power or by switch the ignition to off.

Scheme 199

1. Switch the ignition to ACC or ON.
2. Turn the audio unit power to ON.
3. While pressing the AUTO-M switch, simultaneously press the PRESET switch 1 for 3 s or more. NOTE: The AUTO-M function operates when the AUTO-M switch is pressed, however, press and hold it until the dial inspection launches. see scheme 29: AUTO-M Switch And PRESET Switch 1
4. Inspect according to the following table: INSPECTION DISPLAY ACTION Launch the dial inspection mode. Operate all of the dial. Does the dial rotation direction correspond with the direction displayed in information display? --> <-- Yes Dial is okay. No Verify the switch. (See «CONFIRMATION STEP 1: AUDIO PANEL SWITCH CONFIRMATION [ENTIRE AUDIO SYSTEM]»(ref-579469-S38532539792013100700000).)
5. Cancel the diagnostic assist function by either turning off the audio unit power or by switch the ignition to off.

Scheme 200

1. Switch the ignition to ACC or ON.
2. Turn the audio unit power to ON.
3. While pressing the POWER/VOLUME switch, simultaneously press the SEEK/TRACK/REPLAY switch (down) for 3 s or more. (Scheme 195): POWER/VOLUME Switch And SEEK/TRACK/REPLAY Switch (Down)
4. Inspect according to the following table: INSPECTION DISPLAY ACTION Launch the audio amplifier specification inspection mode. Verify the audio amplifier specification. Dose the audio amplifier specification correspond. Without Bose® N (Normal) With Bose® L (Line out) Yes System is okay. No Replace the audio unit. (See «AUDIO UNIT REMOVAL/INSTALLATION»(ref-579336-S10029739652013100700000).)
5. To stop the diagnostic assist function, ignition is switched to off.

Scheme 201

1. Switch the ignition to ACC or ON.
2. Turn the audio unit power to ON.
3. While pressing the POWER/VOLUME switch, simultaneously press the PRT/PRESET switch 2 and AUTO-M switch for 3 s or more. NOTE: The AUTO-M function operates when the AUTO-M switch is pressed, however, press and hold it until the dial inspection launches. see scheme 31: POWER/VOLUME Switch, PRT/PRESET Switch 2 And AUTO-M Switch
4. Inspect according to the following table: INSPECTION - ACTION Launch the audio amplifier (With Bose ® ) identify inspection mode. Dose the audio amplifier specification correspond. With normal seat The rear door speaker sounds. With leather seat The front door speaker sounds. Yes Audio amplifier is okay. No Replace the audio amplifier. (See «AUDIO AMPLIFIER REMOVAL/INSTALLATION»(ref-579336-S18620911252013100700000).)
5. Cancel the diagnostic assist function by either turning off the audio unit power or by switch the ignition to off.