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Home >> Mazda >> 2013 >> 5 Grand Touring >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> On-Board Diagnostic [Audio] >> DTC: 29:Er01, 29:Er09 [AUDIO] >> Diagnostic Procedure

Diagnostic Procedure

STEP  INSPECTION  ACTION 
1 VERIFY MUSIC FILES IN USB DEVICE/iPod 
  • Is there any playable music file in the USB device/iPod?
 Yes Go to the next step.
No System is normal. (No playable file in USB device/iPod)
Go to Step 8.
2 INSPECT USB DEVICE/iPod 
  • Connect the USB device/iPod to a same-model vehicle (model/unit).
  • Is the USB device/iPod connection detected/unit plays back.
 Yes Go to the next step.
No System is normal. (USB device/iPod malfunction or incompatible USB device.)
Go to Step 8.
3 INSPECT AUDIO UNIT CONNECTOR CONDITION 
  • Switch the ignition off (LOCK).
  • Disconnect the negative battery cable.
  • Disconnect the audio unit connector.
  • Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion or disconnection.
  • Is there any malfunctioning part?
 Yes Repair or replace the connector, then go to Step 8.
No Go to the next step.
4 INSPECT AUXILIARY JACK/USB PORT CONNECTOR CONDITION 
  • Disconnect the auxiliary jack/USB port connector.
  • Inspect the connector engagement and connection condition and inspect the terminals for damage, deformation, corrosion or disconnection.
  • Is there any malfunctioning part?
 Yes Repair or replace the connector, then go to Step 8.
No Go to the next step.
5 INSPECT WIRING HARNESS FOR OPEN CIRCUIT BETWEEN AUDIO UNIT AND AUXILIARY JACK/USB PORT 
  • Verify that the connectors for the audio unit and the auxiliary jack/USB port are not disconnected.
  • Inspect for continuity between the following terminals (vehicle wiring harness)
    • Audio unit terminal 3A and auxiliary jack/USB port terminal UD
    • Audio unit terminal 3B and auxiliary jack/USB port terminal UC
    • Audio unit terminal 3C and auxiliary jack/USB port terminal UA
    • Audio unit terminal 3D and auxiliary jack/USB port terminal UB
  • Is there continuity?
 Yes Go to the next step.
No Repair or replace the wiring harness, then go to Step 8.
6 INSPECT WIRING HARNESS FOR SHORT TO GROUND BETWEEN AUDIO UNIT AND AUXILIARY JACK/USB PORT 
  • Inspect for continuity between the following wiring harness terminals (vehicle wiring harness side) and body ground
    • Audio unit terminal 3A and auxiliary jack/USB port terminal UD
    • Audio unit terminal 3B and auxiliary jack/USB port terminal UC
    • Audio unit terminal 3C and auxiliary jack/USB port terminal UA
    • Audio unit terminal 3D and auxiliary jack/USB port terminal UB
  • Is there continuity?
 Yes Repair or replace the wiring harness, then go to Step 8.
No Go to the next step.
7 INSPECT AUXILIARY JACK/USB PORT  Yes Replace the auxiliary jack/USB port, then go to the next step.(See AUXILIARY JACK/USB PORT REMOVAL/INSTALLATION .)
No Go to the next step.
8 VERIFY THAT REPAIRS HAVE BEEN COMPLETED 
  • Reconnect all of the disconnected connectors.
  • Connect the negative battery cable.
  • Clear the audio unit DTCs. (See CLEARING DTC [AUDIO] .)
  • Perform the audio unit DTC inspection. (See DTC INSPECTION [AUDIO] .)
  • Is the same DTC displayed?
 Yes Return to Step 1 and inspect for other possible causes. If the malfunction recurs, replace the center panel unit, then go to the next step. (See DTC TABLE [AUDIO] .)
No Go to the next step.
9 VERIFY IF OTHER DTCs ARE DISPLAYED 
  • Are any other DTCs displayed?
 Yes Repair the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [AUDIO] .)
No DTC troubleshooting completed.
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