Workshop Manuals Factory service & repair Fiat
Fiat Bravo Factory Service Manual (2007-2014)22 · Fault diagnosis
22 · Diagnostics

Subwoofer not working

Make
Fiat
Model
Bravo Factory Service Manual
Year
2007–2014
Section
Radio and accessories etc. › Subwoofer not working
Fault diagnosisSubwoofer not working

SUBWOOFER NOT WORKING

Hi-Fi system

The subwoofer is not working

TEST RESULTS
1CHASSIS EARTH CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Check the earth connection on the tunnel for the amplifier is correctMove on to Step 2Power supply interrupted

Restore correct power supply

See E3510 RADIO

2CHECK THE AUDIO SIGNALS CONTROLLING THE SUBWOOFERALL OKPROBLEMS ENCOUNTEREDACTION

Check for the presence of input subwoofer operating audio signals. Check for the presence of output subwoofer operating audio signals

See Test 5570TK SUBWOOFER OPERATION AUDIO SIGNALS CHECK

Move on to Step 3

1. Audio signals interrupted

2. Radio defective

1. Restore the audio signal wiring

2. Replace the radio

Op. 5570T80 CAR RADIO EQUIPMENT - R+R

3SUBWOOFER AMPLIFIER ENABLEMENT POWER SUPPLY CHECKALL OKPROBLEMS ENCOUNTEREDACTION

Check for the presence of a subwoofer enablement signal

See Test 5570TK SUBWOOFER OPERATION AUDIO SIGNALS CHECK

Move on to Step 4

1. Wiring broken

2. Radio defective

1. Restore the correct wiring

2. Replace the radio

Op. 5570T80 CAR RADIO EQUIPMENT - R+R

4AMPLIFIER STATUS RECOGNITION POSITIVE SIGNAL CHECKALL OKPROBLEMS ENCOUNTEREDACTION

Check for the presence of the amplifier status positive recognition signal

See Test 5570TK SUBWOOFER OPERATION AUDIO SIGNALS CHECK

End of diagnosis

1. Wiring defective

2. Subwoofer defective

1. Restore the correct wiring

See E3510 RADIO

2. Replace the subwoofer

Parts & tools for this job For 2007 Fiat Bravo

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