198002796 - N025 SUBWOOFER NOT WORKING (Hi-Fi system)

The subwoofer is not working

		TEST RESULTS
1	CHASSIS EARTH CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check the earth connection on the tunnel for the amplifier is correct	Move on to Step 2	Power supply interrupted	Restore correct power supply    See E3510 RADIO
2	CHECK THE AUDIO SIGNALS CONTROLLING THE SUBWOOFER	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	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 interrupted2. Radio defective	1. Restore the audio signal wiring2. Replace the radio    Op. 5570T80 CAR RADIO EQUIPMENT - R+R
3	SUBWOOFER AMPLIFIER ENABLEMENT POWER SUPPLY CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check for the presence of a subwoofer enablement signal    See Test 5570TK SUBWOOFER OPERATION AUDIO SIGNALS CHECK	Move on to Step 4	1. Wiring broken2. Radio defective	1. Restore the correct wiring2. Replace the radio    Op. 5570T80 CAR RADIO EQUIPMENT - R+R
4	AMPLIFIER STATUS RECOGNITION POSITIVE SIGNAL CHECK	ALL OK	PROBLEMS ENCOUNTERED	ACTION
	Check for the presence of the amplifier status positive recognition signal    See Test 5570TK SUBWOOFER OPERATION AUDIO SIGNALS CHECK	End of diagnosis	1. Wiring defective2. Subwoofer defective	1. Restore the correct wiring    See E3510 RADIO 2. Replace the subwoofer