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Discussion Starter #1
I've got this on the General Discussion but realise this is the most appropriate section

All of a sudden CDs are ejected and I get ' Bad Disc ' when I insert a Music CD. Tried other discs with the same result. Happens with the original dscs as well as burnt ones. All the other functions. hard drive, radio, sat nav etc are fine.

Oddly enough I had the brake fluid changed by a Honda Dealer four days ago. It had been working previously and this is the first time I have used it since. I appreciate that there is no connection between the two of course, but wonder whether it has been interfered with..

I've had one response with the suggestion to use a DVD head cleaner, but that is not a solution because it immediately ejects the cleaning disc just as it does the playing discs and throws up the 'Bad Disc' fault. Additionally I realise that the DVD motor is running without there being a disc in place,.

I've spoke to the Honda Service Manager and of course despite it being such a coincidence they will not acknowledge any connection, but have offered to rund a diagnosis to see whether it will throw anything up. I wonder what the Honda data base has to say on the subject?.

Anyone any experience of this please?
 

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Maybe they disturbed a wire when they were servicing you be surprised how things are linked never know , maybe take battery out some sort of system reset might help. Just saying also have you managed to get DVD working while driving?


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Discussion Starter #3 (Edited)
I suppose it's possible they disturbed something, but I have a vague recollection of something being different around the unit when I picked it up, but it was not significant at the time and I have a feeling that it might have been something physical. Just too much of a coincidence. This is the trouble entrusting your car to someone else.

I picked up on another forum that a reboot might make it itself if I disconnected the fuse for that circuit, but rather than take the chance of introducing another problem I've disconnected the battery instead and so am waiting see what happens when I reconnect.

As regards viewing the DVD - sorry worked perfectly when stationary and I never tried to change it to work on the move.

How sympathetic are Honda to situations such as this? Is it too much to expect that there could be some goodwill?
 

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I suppose it's possible they disturbed something, but I have a vague recollection of something being different around the unit when I picked it up, but it was not significant at the time and I have a feeling that it might have been something physical. Just too much of a coincidence. This is the trouble entrusting your car to someone else.

I picked up on another forum that a reboot might make it itself if I disconnected the fuse for that circuit, but rather than take the chance of introducing another problem I've disconnected the battery instead and so am waiting see what happens when I reconnect.

As regards viewing the DVD - sorry worked perfectly when stationary and I never tried to change it to work on the move.

How sympathetic are Honda to situations such as this? Is it too much to expect that there could be some goodwill?


Absolutely tweet about it mate sometimes works, do keep us posted


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Discussion Starter #5
Worst case scenario and I have to replace the unit with a seconds hand unit :

Two questions:

1. How to get the ECU to recognise the unit from another vehicle

2. Will units from all Mk9 Civics be compatible or were there changes made during the production run?. Mine is a 2012 model.
 

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Worst case scenario and I have to replace the unit with a seconds hand unit :



Two questions:



1. How to get the ECU to recognise the unit from another vehicle



2. Will units from all Mk9 Civics be compatible or were there changes made during the production run?. Mine is a 2012 model.


I'm guessing ecu should pick up the unit as it's factory fitted of you buy second hand best to have similar I know some got premium written and some don't


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Discussion Starter #7
I'm guessing ecu should pick up the unit as it's factory fitted of you buy second hand best to have similar I know some got premium written and some don't


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Sorry I don't understand exactly what you mean.

I would try to get hold of a unit off an identical car, but I don't know whether the units are interchangeable throughout the MK 9 range. Mine is 2012. Was there a change in 2013 or later?.

The reboot theory did not work. I disconnected the battery for over two hours and it's exactly the same as it was.
 

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I've never used my CD player. I use a USB stick instead.

I wouldn't be too sure you can just plug another one in without dealer help. I think they are VIN coded.

I'd be asking them exactly what they did under the circumstances.
 

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Discussion Starter #9
I've never used my CD player. I use a USB stick instead.

I wouldn't be too sure you can just plug another one in without dealer help. I think they are VIN coded.

I'd be asking them exactly what they did under the circumstances.
I have asked the service manager but of course they deny any knowledge.

I would be quite happy to use a USB stick but the associated problem with the 'Bad Disc' problem is that the CD Unit is acting peculiarly and I can hear the motor whissing away when there is no disc there because it immediately ejects them.

I'll certainly try to find out about whether the VIN coding is involved in swapping one from another car. I wonder whether that could be hone with the Honda HDS Diagnostic tool. Any ideas would be helpful. Thanks.
 

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Discussion Starter #10
I've now bought a second hand unit for my 2012 Honda Civic diesel exec. Can anyone tell me specifically how to remove the existing Sat Nav/DVD Unit please.

I have a 2006 to 2011 Haynes but that is quite different.
 

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If it's whirring away with no CD then what have they pushed in there would be my first thought.

Not the first time that's happened but usually a child. Got a torch.
 

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Discussion Starter #12
You could be right. Thanks for the suggestion.

Anyone assist with getting the old unit out please. Which panels need removing to get access. Any exploded drawing in existance. Any Honda workshop manuals?


Many thanks
 

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Discussion Starter #13
Now replaced and working fine. See my 'How To' for instructions.

After replacing with integrated unit from another vehicle it will need re-coding by a Honda dealer for a nominal charge.

It's an expensive exercise and hope it doesn't happen again.
 

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Discussion Starter #15
Can you now get inside the original one to see any issues ?
It's probably a mechanical problem within the DVD player. I think it's possible to have a look by removing the top cover but I have not tried as yet.

I did wonder whether it would have been possible to disable the DVD part of the head unit by removing one of the plugs at the back of the unit and thereby continuing to use the Sat Nav, Reverse camera and all the other associated features. As you suggested earlier using a USB instead of the DVD. Leaving as it was was not an option for me because I could not have lived with the Bad Disc nag which was thrown up each time the ignition was turned on.
 

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Given that it only started playing up after a service I wondered whether you could see if anything got poked in there. Does it rattle now it's out.
 

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Discussion Starter #17 (Edited)
Nothing rattling.

FYI: The part number shows it to be an Alpine Unit (or replacement) which are available from the Far East for between $65-$120 so that is an option so long as it is an exact match. The part numbers match exactly pictures of the unit look identical.

https://www.aliexpress.com/item/Original-best-quality-DV37M16H-DV37M-Single-car-dvd-mechanism-for-Chrysler-HONDA-MERCEDES-car-video-system/32812418444.html

Honda estimated £300-£400 for a repair which would of course have included removing and fitting.
 

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Makes you wonder if the maintenance staff put their own disc in to listen to during the service but someone had contaminated paws thats affected inside your player .... maybe.

Have you tried resetting the player, master reset button ??
 

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It's probably a mechanical problem within the DVD player. I think it's possible to have a look by removing the top cover but I have not tried as yet.

I did wonder whether it would have been possible to disable the DVD part of the head unit by removing one of the plugs at the back of the unit and thereby continuing to use the Sat Nav, Reverse camera and all the other associated features. As you suggested earlier using a USB instead of the DVD. Leaving as it was was not an option for me because I could not have lived with the Bad Disc nag which was thrown up each time the ignition was turned on.
The Laser inside is NOT usually Eye Safe, and it's can be invisible so under no circumstances have it connected to any power or power it up when you open it.

The casing will say Class I which is eye safe but that's only because they classify it as safe because it's encased. The actual laser itself can be as high as Class III.

So far as the issue is concerned, it's typical symptoms of a failing laser module as the laser reads the disc and if the laser is becoming weak then when it's unable to read the disc, it will reject it as a bad disc. However, if it's doing this over multiple known good discs, then it's more likely the laser that's unable to read the discs, than the discs that are unreadable.

I highly doubt any other kind of mechanical issue. If it spins the disc on insertion, then rejects it, it's probably the laser.
 
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