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Jay
Jay, Certified Infiniti Technician
Category: Infiniti
Satisfied Customers: 19874
Experience:  20+years, Nissan and Infiniti experience and currently now working for a Infiniti Dealer
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My radio has stopped working. All I see is st. On the screen

Customer Question

My radio has stopped working. All I see is st. On the screen my audio tech guy thought it was the control panel, so I ordered and replacement control panel. Now he says it's either the radio or the amplifier. Please help
JA: Is this an aftermarket stereo, or did it come with the car?
Customer: It came with the car
JA: What is the model/year of your Infiniti?
Customer: 2005 INFINITI QX56
JA: Are you fixing your QX56 yourself? What have you tried so far?
Customer: I'm not a handy guy I leave it to the experts but I just want to know for sure before I order another part
JA: Anything else you want the mechanic to know before I connect you?
Customer: That's the main issu
Submitted: 8 months ago.
Category: Infiniti
Customer: replied 8 months ago.
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Expert:  Jay replied 8 months ago.

Hello my name is ***** ***** thank you for your question.

Does the radio come on but has no sound? Can you change stations?

Customer: replied 8 months ago.
None
Expert:  Jay replied 8 months ago.

Has all fuses been checked with a test light?

Customer: replied 8 months ago.
Expert:  Jay replied 8 months ago.

I have one trick we would need to try. If that doesn't work, then we may need to get more involved. Meaning remove the radio and check for power using a volt meter.

So what I would like you to do is what they call a Hard Reset. This is when you disconnect the negative battery cable for 15 mins. Then connect it.

So give that a try and see if radio operation returns and let me know..

Customer: replied 8 months ago.
Working on that now
Expert:  Jay replied 8 months ago.

k

Customer: replied 8 months ago.
Nothing after the hard restart
Expert:  Jay replied 8 months ago.

Was that 15 mins?

do you have a volt meter and can you read a wiring diagram?

Customer: replied 8 months ago.
Sorry not that technical
Expert:  Jay replied 8 months ago.

Well if all fuses are good, and the hard reset did not work, the next thing to do is the pin test at the audio unit to see if it's getting all it's signals. If it is, then it could be a internal fault in the radio.

Did any one suggest that could be your issue?

Customer: replied 8 months ago.
No, how do you do a pin test?
Expert:  Jay replied 8 months ago.

The Radio is removed and while the radio is plugged in you take voltage readings with a volt meter at particular wires going into the radio using the wiring diagram to see which are power and ground. So you would check all the voltage signals, and ground. If they are all present, then the problem is the audio unit. If they are missing, then it could be a display control module. But the proper steps need to be done to isolate the issue.

Expert:  Jay replied 8 months ago.

It maybe cheaper in the long run to have it checked to isolate whether the radio is bad or not instead of changing parts and having the same results. The dealer would be the best place for this.

Do you have any more questions on this?

Customer: replied 8 months ago.
how much would a dealer charge to check this out?
Expert:  Jay replied 8 months ago.

Normally they would start with 1 hour labor to diagnose the issue. The dealers labor rates are around 120 dollars a hour.