Subwoofer not working
- Make
- Alfa Romeo
- Model
- Brera and Spider Factory Service Manual
- Year
- 2005–2010
- Section
- Radio and accessories etc.. › Subwoofer not working
Fault diagnosisSubwoofer not working
SUBWOOFER NOT WORKING
all the audio channels operate correctly except the subwoofer
| 1 | CHECK CORRECT POWER SUPPLY TO WOOFER | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
|---|---|---|---|---|
Check the subwoofer power supply is correct by carrying out See Test 5570TC CHECK ON OPERATION OF SUBWOOFER | Move on to Step 2 | Power supply interrupted | Restore correct power supply, see wiring diagram | |
| 2 | CHECK THE AUDIO SIGNALS CONTROLLING THE SUBWOOFER | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
Check for the presence of audio signals controlling the subwoofer by carrying out See Test 5570TC | Move on to Step 3 | Audio signals interrupted | Restore the correct audio signal wiring | |
| 3 | CHECK SUBWOOFER ACTIVATION ENABLEMENT SIGNAL | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
Check that a subwoofer activation enablement signal is present by carrying out See Test 5570TC | Move on to Step 4 | 1. Subwoofer activation signal interrupted. | 1. Restore the correct signal. | |
| 2. Subwoofer defective | 2. Replace Bose subwoofer | |||
| 3. Audio amplifier defective. | 3. Replace Bose audio amplifier | |||
| 4 | CHECK ON CORRECT OPERATION | ALL OK | PROBLEMS ENCOUNTERED | ACTION |
| Check that the fault is no longer present | End of diagnosis |
Parts & tools for this job For 2005 Alfa Romeo Brera
- TOOLTorque wrenchSearch: 3/8 inch torque wrench
- TOOLSocket setSearch: socket set metric
- BOOKHaynes manualSearch: Haynes manual Alfa Romeo Brera
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