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Lee_D
Member Since: 03 Oct 2020
Location: Newcastle Under Lyme
Posts: 11
  
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| Sat Nav and Radio no display |
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Searched to no avail...
2010 XS D4 with Sat Nav Phone and Radio dead. The display doesn't illuminate / come on.
Fuse is ok, Hard reset did nothing but set the clock to 12.
Any other ideas folks? I've had this car 5 years, no recent changes, Battery is good.
No other obvious faults. Drving me bonkers
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 4th Oct 2020 5:55 pm |
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Mr Kington
Member Since: 12 Dec 2011
Location: Scottish Borders
Posts: 1549
 
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Only suggestion I have is find someone near you and swap over the head unit. If the swapped one works then there is your problem. My radio / head unit started to muck about for ages. When I replaced it for a new used one all was well. James favourite hobby is writing in the third person.
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| 4th Oct 2020 7:33 pm |
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Lee_D
Member Since: 03 Oct 2020
Location: Newcastle Under Lyme
Posts: 11
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Cheers,  when you say head unit do you mean the unit that the CD's slot in to. I'm suspecting that may be the issue.
Lad has Autel Maxisys which I plugged in to it, The BCM shows an error, I get error U0184-00 Lost communication with Audio system. Does the head unit drive the display I wonder as there is literally nothing on the screen.
Is it plug and play?
Lee
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| 4th Oct 2020 9:56 pm |
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Lee_D
Member Since: 03 Oct 2020
Location: Newcastle Under Lyme
Posts: 11
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Not real changes here, I still have no Nav screen , Radio or anything basically.
The Screen has come on a couple of times mid journey and rather randomly.
I have found that fuse 68 has no power to it, when I jumped this the Screen lit up with the Landrover logo, but the system didn't boot up as such. Just seems hung on the Logo so I'm not convinced jumping this has everything powered up. Not convinced f68 should have power and maybe it's controlled by the head unit??? I dunno??
I stripped it all down and got the Radio/ GPS Head unit out. it's a ah22-18c815-ad part number MY2010 D4 XS
I really am at a loss. AUTEL showed no communication with the Audio system as per my last post.
I've had a trawl for a replacement head unit on the bay of e's and no joy. Reluctant to just spend without a real diagnosis if you know what I mean.
Any help would be appreciated peeps.
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| 13th Dec 2020 1:38 am |
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Lee_D
Member Since: 03 Oct 2020
Location: Newcastle Under Lyme
Posts: 11
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A little progress which I thought I would share with the group as it seems many folk have similar issues and little feedback from those with the problem.
So I left it for a while and had the battery on charge for a few days. Drove around and the Nav fired up again. So I started to put it all down to low voltage. There seemed to be a trend that once the voltage was comfortably up the nav and radio unit was happy to work. I started to relax.
One one day again started the car, turned out of a junction and the Nav fired up, drove about 100 yards and there was a rather juicey sounding electrical splat which at the time I thought came from the drivers door speaker. The Nav shut down with the screen and all that goes with it and I though it's number was up, what ever had been going on had finally died. I drove around for a week or so hoping the Nav would fire up but nothing.
I stripped down the dash, dug out the bluetooth module, bypassed the amp, radio head, bluetooth all individually with a MOST loop to see if anything happened. Nothing. Still getting the BCM telling me it had Lost communication with the Audio Module U0184-00 when reading with the Autel Diag.
I bit the bullet and decided to send the head unit off to DTRONIX who service these units for Landrover, apparently it's an Alpine head unit. Couple of weeks in and I have just had a call to say the head unit was OK. Well now I'm getting a bit out of my depth here as I have explored to my limits in this specialist area. I went out with the torch and took a look under the drivers seat.
On examination on of the wires to the Heated seats plug has chaffed through completely and also was poorly routed such that when the seat is moved forward and back it grinds against the heat sink fins on the Audio amp. I am fairly sure that this was the splat I heard which I thought may have been coming from the drivers door speaker on the last time the unit died. I have taped up the bare wire which must be fused to carry quite some load due to the heating elements. The seat heater seems to be fine. I have rerouted the wire correctly after much knuckle bashing. I have pulled the 12v feed to the amp and their is 12v on the cable. When I plugged it back in for a short while I could see red light reflecting off thecircuir board near to the MOST cable.
I'm currently hoping the issues are two fold, originally lowish voltage due to infrequent use that was resolving it's self. And now the SPLAT from the heated seat cable rubbing against the Case of the Amp. I am praying the Amp shut it's self down but won't know until the head unit gets back to me and I cando a hard reset again and see what happens.
Thought it worth sharing, I have the XS so manual seat adjustment and the wife is short so the seat gets regular adjustment to extremes may be worth folks checking. Slide the seat all the way back and get a torch, check none of the wiring is rubbing on the Amp case.
....... to be continued!
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| 19th Mar 2021 7:58 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10355
 
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If the display just gets stuck on the landrover logo then it’s something else wrong on the optical bus
Did you optical bypass the display itself ?
I think you should get something out the radio if you do.
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| 19th Mar 2021 8:18 pm |
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Lee_D
Member Since: 03 Oct 2020
Location: Newcastle Under Lyme
Posts: 11
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Display is totally blank when it dies. Nothing, as though power to the lot has been cut off.
On one occasion I managed to power the display alone and it fired with the logo sonit seems what ever is shutting power off is doing it to the display and the head unit. I wonder if the BCM does this by design in low voltage situations.
I'm praying the lot will hard reset when the head unit is back assuming the splat from the heated seat cable shorting has caused the amp to some how shut down.
Any other suggestions welcomed.
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| 19th Mar 2021 9:37 pm |
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Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10355
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If the display dies all sound stops
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| 19th Mar 2021 9:46 pm |
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Lee_D
Member Since: 03 Oct 2020
Location: Newcastle Under Lyme
Posts: 11
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Dtronics returned the head unit today so I popped out and had a butchers.
The head unit was found to have no faults and they did a firmware upgrade whilst they had it. Just over £50 which included return postage so I can't complain.
I had been using the car more recently so the battery is much happier and charged to a higher voltage doing less short stop runs.
I stripped the dash back, put the selector in neutral as I have the last of the auto stick.shift model. Console removed and dash gubbins. While I reinstalled the kit I disconnected the battery, shorted the leads to perform a hard reset (yet again) and put the charger on for a short time also.
Head unit refitted, dash partly rebuilt , charger removed and battery reconnected.
Door opened and already the display springs in to life. Well happy. Who would of thought two issues have had me chasing my tail for months, low battery AND shorting heated seat feed on the under seat amp.
Credit to Dtronixs who could have milked that but were honest. Head unit repairs cost start at £160 depending on parts required. Firmware update gives slightly different colour to the left side of the screen with a more obvious than before distinction between screen modes. Previously I would get a rare glitch where the unit seized display so I'm hoping the firmware update may also address this.
Phew! 😊😊😊
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| 25th Mar 2021 12:20 am |
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