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Home >> Mazda >> 2017 >> CX-5 Grand Select, FWD >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Symptom Troubleshooting - Entertainment System - With Center Display >> No Sound Output In All Modes [Entertainment System [With Center Display]] >> Without Bose®

Without Bose®

DESCRIPTION AND POSSIBLE CAUSES

Description NO SOUND OUTPUT IN ALL MODES
  • Sound is not output from speakers even if any mode is selected
  • Noise interference occurs in sound from speakers in any selected mode
Possible Causes
  • Effects of non-genuine, after-market electrical components
  • Connector poor contact or terminal damage
  • Tuner and amp unit (TAU) ACC power supply circuit malfunction
    • Short circuit to ground in wiring harness between TAU terminal 2R and AUDIO2 7.5 A fuse
    • AUDIO2 7.5A fuse malfunction
      • Open circuit in wiring harness between TAU terminal 2R and AUDIO2 7.5 A fuse
  • Open circuit in wiring harness between the following terminals:
    • TAU terminal 2W and body ground
  • TAU malfunction
  • Connectivity master unit (CMU) malfunction
  • Open circuit in wiring harness between the following terminals:
    • TAU terminal 2A and front door speaker (LH) terminal B
    • TAU terminal 2C and front door speaker (LH) terminal C
    • 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