Member Since: 06 Feb 2010
Location: devon
Posts: 105
I thought that new amp had to be programed to the car but if you put second hand unit in it will work straight off. Well i had to program one i fitted new but i may be wrong
11th Mar 2015 9:44 am
DiscoZack
Member Since: 12 Feb 2015
Location: Cambridge
Posts: 173
I came across a Denso theory of operation document. I hope it helps those trying to understand how the system works:
EDIT: fixed link Cheers, Chris in Cambridge
D3 56 TDV6 Metropolis LE
LH EGR valve replaced, cambelt changed
Amateur Radio Callsign - G6EUI
My other car is a Volvo S60 T5
Previous:
Discovery 2 2.5 Td5 S - 7 seat - Blue
Discovery 2 2.5 Td5 ES - 7 seat - Maroon
Isuzu Trooper 3.2 V6 Auto - Red
Isuzu Trooper 3.2 V6 Manual - Red
IIDTool BT, Nanocon Evo 2
11th Mar 2015 11:10 am
Farmergraham
Member Since: 08 May 2018
Location: Billericay
Posts: 1
[quote="Flack"]What have you got fitted have you got a touch screen sat nav ??. But as lee157 has said it sounds like one of your ecu's is not responding to complete the f/optic loop. You have changed the amp so you need to look if you have TMC and or Bluetooth fitted in the rear drivers side quarter panel and check them out.
I have a small f/optic loop that I just plug in to test the system out if it boots up when inserted then that ecu is the problem one.
Flack hi I have a d3 no sound from the radio although it all appears to be working the Satanv is on land rover screen the rear headphone plugs don’t work either! It had this fault a couple of months ago which was the amp but that was replaced and was fine until yesterday I swapped the amps from my other d3 and both work in the other but not this one! Where can I get the f/ optic loop you mention?
8th May 2018 9:36 pm
DISCO3HSE2018
Member Since: 28 Feb 2018
Location: Hampton
Posts: 585
I've had a similar problem appear this morning. NAV screen is not turning on and although the HU is on and responsive no audio from any source.
Is the NAV the likely culprit and just needa replacing?
Less than ideal as we head off to North Devon for week on Thu and it's 4hrs each way!
30th Jul 2018 7:53 am
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10587
If the screen has no power (or is dead) it takes down the MOST optical network (orange cables) and no sound can get to the amplifier.
If you want music back its possible to point the two orange cables together CAREFULLY.
or if you want a working screen, order a replacement
30th Jul 2018 12:05 pm
DISCO3HSE2018
Member Since: 28 Feb 2018
Location: Hampton
Posts: 585
Awesome thanks for that. Seems like a perfect time to do the D4 screen upgrade!
30th Jul 2018 1:14 pm
DISCO3HSE2018
Member Since: 28 Feb 2018
Location: Hampton
Posts: 585
Very odd. Got in the car this evening and it's all working again...Will have to keep an eye on this one!
30th Jul 2018 9:30 pm
brob
Member Since: 05 Nov 2020
Location: UK
Posts: 17
No audio. Replaced amp, still no audio.
Prior owner never used the Bluetooth hands free, I did. Also had and fixed a leaky drain from sunroof.
Looking through the forum, trying different things, still no joy:
- Tried reset via right button menu on head unit, no difference
- Hard reset, connecting positive / negative connectors, no difference
- Replaced amp, no difference
Could be:
- Buggy Bluetooth module?
- Water damage to cables to / from amp?
- I’ve order a MOST loop to try and troubleshoot the fiber optic loop, anyone done this before?
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hi I have a d3 no sound from the radio although it all appears to be working the Satanv is on land rover screen the rear headphone plugs don’t work either! It had this fault a couple of months ago which was the amp but that was replaced and was fine until yesterday I swapped the amps from my other d3 and both work in the other but not this one! Where can I get the f/ optic loop you mention?
