Workshop Manuals Factory service & repair Alfa Romeo
Alfa Romeo 159 Factory Service Manual (2005-2011)23 · Fault diagnosis
23 · Diagnostics

Subwoofer not working

Make
Alfa Romeo
Model
159 Factory Service Manual
Year
2005–2011
Section
Radio and accessories etc.. › Subwoofer not working
Fault diagnosisSubwoofer not working

SUBWOOFER NOT WORKING

all the audio channels operate correctly except the subwoofer

1CHECK CORRECT POWER SUPPLY TO WOOFERALL OKPROBLEMS ENCOUNTEREDACTION

Check the subwoofer power supply is correct by carrying out

See Test 5570TC CHECK ON OPERATION OF SUBWOOFER

Move on to Step 2Power supply interrupted

Restore correct power supply, see wiring diagram

See E3510 RADIO

2CHECK THE AUDIO SIGNALS CONTROLLING THE SUBWOOFERALL OKPROBLEMS ENCOUNTEREDACTION

Check for the presence of audio signals controlling the subwoofer by carrying out

See Test 5570TC

Move on to Step 3Audio signals interruptedRestore the correct audio signal wiring
3CHECK SUBWOOFER ACTIVATION ENABLEMENT SIGNALALL OKPROBLEMS ENCOUNTEREDACTION

Check that a subwoofer activation enablement signal is present by carrying out

See Test 5570TC

Move on to Step 41. Subwoofer activation signal interrupted.1. Restore the correct signal.
2. Subwoofer defective

2. Replace Bose subwoofer

Op. 5580T40 BOSE SOUND SYSTEM SUBWOOFER - R.R.

3. Audio amplifier defective.

3. Replace Bose audio amplifier

Op. 5580T42 BOSE SOUND SYSTEM AMPLIFIER - R.R.

4CHECK ON CORRECT OPERATIONALL OKPROBLEMS ENCOUNTEREDACTION
Check that the fault is no longer presentEnd of diagnosis

Parts & tools for this job For 2005 Alfa Romeo 159

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