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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 All Modes [Entertainment System [With Center Display]] >> Notes

No Sound Output In All 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 ALL MODES
Sound is not output from speakers even if any mode is selected
Possible Causes 
  • Connector poor contact or terminal damage
  • Tuner and amp unit (TAU) ACC power supply circuit malfunction
    • Short circuit to ground in wiring harness between battery and TAU terminal 2R
    • Open circuit in wiring harness between battery and TAU terminal 2R
    • AUDIO 7.5A fuse malfunction
    • ACC relay malfunction
  • Open circuit in wiring harness between TAU terminal 2W and body ground
  • Speaker malfunction
    • Malfunction of the following speakers.
      • Front door speaker (LH)
      • Front door speaker (RH)
      • Tweeter (LH)
      • Tweeter (RH)
      • Rear door speaker (LH)
      • Rear door speaker (RH)
    • Open circuit in wiring harness between the following terminals:
      • TAU terminal 2A and front door speaker (LH) terminal C
      • TAU terminal 2C and front door speaker (LH) terminal B
      • TAU terminal 2A and tweeter (LH) terminal B
      • TAU terminal 2C and tweeter (LH) terminal A
      • TAU terminal 2D and front door speaker (RH) terminal C
      • TAU terminal 2F and front door speaker (RH) terminal B
      • TAU terminal 2D and tweeter (RH) terminal B
      • TAU terminal 2F and tweeter (RH) terminal A
      • TAU terminal 2S and rear door speaker (LH) terminal C
      • TAU terminal 2U and rear door speaker (LH) terminal B
      • TAU terminal 2V and rear door speaker (RH) terminal C
      • TAU terminal 2X and rear door speaker (RH) terminal B
  • TAU malfunction
  • Connectivity master unit (CMU) malfunction
System Wiring Diagram