22 · Diagnostics

Connect audio not working

Make: Fiat
Model: Croma Factory Service Manual
Year: 2005–2010
Section: Radio and accessories etc.. › Connect audio not working

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Fault diagnosisConnect audio not working

CONNECT AUDIO NOT WORKING

Audio not present from all sources (radio, CD, phone, navigation system). The HI-FI version has an audio power amplifier built into the subwoofer box.

HI-FI

1	ELECTRICAL CONNECTION CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Release the Connect from the dashboard and check that the connection with the speakers is properly fitted see See E3510 RADIO Check the audio controls on the steering wheel if present.	Move on to Step 2	1.Speaker output connection at the Connect not properly connected	1.Connect the connection correctly
		Move on to Step 2	2.Audio controls on steering wheel defective	2.Restore operation
2	CHECK AUDIO SIGNALS	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check for audio signals at the radio output See E3510 RADIO	End of diagnosis for all versions	Audio signals at radio output interrupted.	Replace Connect Op. 5580P12 CONNECT PANEL REPLACE
2	CHECK AUDIO SIGNALS	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check for audio signals at the radio output See E3510 RADIO	Move on to Step 3 for Hi-Fi Sound System versions	Audio signals at radio output interrupted.	Replace Connect Op. 5580P12 CONNECT PANEL REPLACE
3	CHECK THE SUBWOOFER CONNECTION	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the continuity/insulation of the connections between the radio and subwoofer amplifier see wiring diagram See E3510 RADIO	Move on to Step 4	1.Wiring interrupted	1.Restore wiring continuity
		Move on to Step 4	2.Wiring short circuited to earth.	2.Renew wiring insulation
4	SUBWOOFER POWER SUPPLY CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the subwoofer power supply is correct see wiring diagram See E3510 RADIO Check for the presence of a subwoofer enablement signal See Test 5570TC CHECK ON OPERATION OF SUBWOOFER	Move on to Step 5	1.Power supply interrupted	1.Restore power supply see wiring diagram See E3510 RADIO
			2.Subwoofer activation signal interrupted	2.Restore continuity.
			3.Recognition signal interrupted.	3.Restore continuity.
5	CHECK THE AUDIO SIGNALS CONTROLLING THE SUBWOOFER	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check for the presence of audio signals controlling the subwoofer.	Move on to Step 6	1.Wiring for audio signals broken	1.Restore wiring continuity
		Move on to Step 6	2.Audio signals interrupted	2.Replace Connect Op. 5580P12 CONNECT PANEL REPLACE
6	CHECK ON CORRECT OPERATION	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check that the fault is no longer present.	End of diagnosis	Fault persists.	Replace subwoofer complete with audio amplifier Op. 5570T95 SUBWOOFER WITH AMPLIFIER BUILT INTO SOUND SYSTEM - R.R.

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Parts & tools for this job For 2005 Fiat Croma

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