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Home >> Mazda >> 2017 >> CX-5 Grand Select, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 68 (Symptom Troubleshooting - Entertainment System - With Center Display) >> No Sound Output In Multiple Modes [Entertainment System [With Center Display]] >> Notes

No Sound Output In Multiple Modes [Entertainment System [With Center Display]]: Notes

WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.
Description NO SOUND OUTPUT IN MULTIPLE MODES
  Radio, CD, AUX audio is output, but no Bluetooth® audio, Internet radio, USB audio, and guidance voice
Possible Causes 
  • Connector poor contact or terminal damage
  • Open circuit in wiring harness between the following terminals:
    • Connectivity master unit (CMU) terminal 1Y and tuner and amp unit (TAU) terminal 1Q
    • CMU terminal 1Z and TAU terminal 1R
    • CMU terminal 1AA and TAU terminal 1S
    • CMU terminal 1AB and TAU terminal 1T
  • Short to ground in wiring harness between the following terminals:
    • CMU terminal 1Y and TAU terminal 1Q
    • CMU terminal 1Z and TAU terminal 1R
    • CMU terminal 1AA and TAU terminal 1S
    • CMU terminal 1AB and TAU terminal 1T
  • Short to power supply in wiring harness between the following terminals:
    • CMU terminal 1Y and TAU terminal 1Q
    • CMU terminal 1Z and TAU terminal 1R
    • CMU terminal 1AA and TAU terminal 1S
    • CMU terminal 1AB and TAU terminal 1T
  • TAU malfunction
  • CMU malfunction
System Wiring Diagram 
G10938269