Always looking for Pre '55's & Pre war British Motorcycles! knowing or having one for sale? PM please. I visit the UK 6 times a year
Ps. I edit my texts quite often, english is not my native language, so I will edit My “typo’s” etc.
24th Feb 2023 8:22 pm
cmb2020
Member Since: 08 Sep 2020
Location: Buckley, North Wales
Posts: 1150
Thank you.
I’ve had a good read over it a few times now. And struggle to understand how and where this device should be installed.
I was under the impression it was to be hidden behind the air con controller and forgotten about. To automatically operate when the webasto got over a certain temp.
I see your instructions are for a different module, but is installed on the dash.
I’d be happy to do a video for the forum of how to wire this device type for other people to follow.
Is the little power switch intended to cut off the module and allow the car full internal system control of the heating? So if switched off then the car heating works as per factory setting?
Do I just piggy back the wires from your numbered images, to the relevant ipcu module inputs? Or should I break the line? Also are those white wire connections fuses or just a wire connector?
At this point I’m lost and don’t understand. Such as wire in gn/ws too?
Also why are the hazard lights part of the installation please?
I presume I can ignore the heater section wiring as I’ve already installed a remote on off switch. (From same supplier) which has involved disconnecting the webasto heater from the car system completely. It can only be powered by six battery and remote fob. Codes can’t be read unless its original wires are reconnected.
How long should this type of job take? I’m not great at electronics, but once I understood the remote fob kit I managed to do a good job.
Thank youDisco 3 SE Manual 2005 V6 2.7
Buckley, North Wales
27th Feb 2023 5:32 pm
Motolab
Member Since: 18 Oct 2019
Location: Sleen
Posts: 1815
Really?
I am afraid you need to be able to read electronic schematics i and webasto don’t have you tube video’s for dummy’s, these upgrade kits are specifically meant for instalment by workshops they don’t make / publish them for DIY (not my idea, sorry)
That manual is the official webasto manual to upgrade the existing auxillary heater to a FULL parkingheater so incl cabin heating that is where the IPCU is needed for..
If you have disconnected / isolated the FBH completely from the motor all together, i don’t see how you can operate the HVAC through the IPCU…. That is beyond my knowledge, since we never done that(isolating the FBH completely from the Landy that is), i don’t see the advantage either..
The schematics are meant for full integration with the Landy…..
And if you do, it works a treat as does it on mine D3
The white connectors are just connectors
The switch and its function is explained at the end of the manual..last page..Best regards
Harold
Always looking for Pre '55's & Pre war British Motorcycles! knowing or having one for sale? PM please. I visit the UK 6 times a year
Ps. I edit my texts quite often, english is not my native language, so I will edit My “typo’s” etc.
Last edited by Motolab on 27th Feb 2023 8:34 pm. Edited 1 time in total
27th Feb 2023 6:59 pm
pwheeldon
Member Since: 15 Jan 2020
Location: West Yorks
Posts: 1446
Looking at the diagram it appears that the remote you have takes the place of the 1533 timer. I can understand why it's a little confusing and I agree it's probably not a great project to undertake without a decent amount electrical knowledge. It's a bit more involved that just connecting the unit up, you also need to wire up a set of relays, unless they came with the ipcu.
So you know an automotive electrician or electrical engineer, as they'd be able to help?Discovery 4 GS 2009 Auto Stornoway Grey
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Discovery 3 SE 2005 Manual Zambezi Silver Gone
Range Rover Sport HSE 2006 Black
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27th Feb 2023 8:20 pm
pwheeldon
Member Since: 15 Jan 2020
Location: West Yorks
Posts: 1446
Motorablei would be interested in your opinion on the similar mod in the thread below.
Also on the original Webasto IPCU relay, what is the function of pin 15 as it doesn't sppear to he connected to anything in the wiring diagram on the instructions you posted and other than that, what function does it perform that's different to a standard relay?
I am looking at doing this mod and I'd appreciate your input.Discovery 4 GS 2009 Auto Stornoway Grey
Discovery 3 s 2005 Auto Bonatti Grey Gone
Discovery 3 SE 2005 Manual Zambezi Silver Gone
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Aston Martin DB7 VV
27th Feb 2023 10:20 pm
Motolab
Member Since: 18 Oct 2019
Location: Sleen
Posts: 1815
Let’s not polude the topic from cmB2020 too much..
But the original Webasto IPCU in the webasto manual is a standard IPCU used for all brands/models of cars, some need no 15 some don’t..
webasto IPCU are programmed individually before delivery/installation brand and model specific by the IPCU supplier..
If a basic relay was sufficient, the would have used that, as they did in older motors… but modern climate control systems need a IPCU to work without hassle and extra switching like in the other topic you refering too, and that is also my opinion about that solution.. i do not like the use of such switches and the need to use them to work…
I myself use the Altox IPCU… nice plug&play solution, with all the functions i need/want and NO ugly and needed swiches… plus that Altox IPCU has the option with a temperature sensor inside the cabin… and so it is possible to configure it in the Altox app and manage the cabin warmth…
I am not the man for 1/2 solutions because they are cheap, if i fancy an option i want it to work perfectly..
At least in my HSE Landy for a Lada Niva i maybe would have had different standards..
For the record: i really like Lada Niva’s Best regards
Harold
Always looking for Pre '55's & Pre war British Motorcycles! knowing or having one for sale? PM please. I visit the UK 6 times a year
Ps. I edit my texts quite often, english is not my native language, so I will edit My “typo’s” etc.
28th Feb 2023 12:04 am
pwheeldon
Member Since: 15 Jan 2020
Location: West Yorks
Posts: 1446
Thanks for the reply. I'd forgotten about the Altox, I may look more into them. As you say I'll start a new thread if needs be.Discovery 4 GS 2009 Auto Stornoway Grey
Discovery 3 s 2005 Auto Bonatti Grey Gone
Discovery 3 SE 2005 Manual Zambezi Silver Gone
Range Rover Sport HSE 2006 Black
Aston Martin DB7 VV
28th Feb 2023 8:21 am
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10364
I'm really busy at the moment. But
1. But I believe all that unit does it output a stream of pulses to run the interior fan at a certain speed.
2. In addition to this, you also need to trigger the fan relay under the bonnet to power the fan.
1. basically you cut a wire to the fan controller (green/black) the then put the 2 wires into the correct in/out PMW terminals.
earth pin 85, pin 86 to remote receiver
2. To trigger the relay under the bonnet you need to supply a ground to pin 85. You probably need 2 diodes to prevent any damage to the LR climate control panel. (in the diagram they have used another relay)
As the remote receiver outputs a + when active, you also need a standard relay to invert the signal to - to command the fan relay on.
Thinking about it, as you are using a relay, just do that using 5 pin relay then you don't need diodes.
So you would cut the green/white wire between climate panel and fan relay under bonnet.
pin 30 to fan relay under bonnet green/white
pin 87a to green/white to climate panel
pin 87 ground
pin 85 ground
pin 86 to remote receiver
3. Before turning the ignition off the night before, you need to set the climate temperature to hot, and ensure the air deflection blend doors are in a sensible position (to where you want the air to come out)
Don't mess with it, till you under stand it, else you will do damage
28th Feb 2023 9:01 pm
cmb2020
Member Since: 08 Sep 2020
Location: Buckley, North Wales
Posts: 1150
Thanks I’m hoping to take garage today along with gear box, rear bush, glow plugs and desiccant
Hopefully they’ll get it done
If not I’ll probably be calling you again scrounging for help 😅Disco 3 SE Manual 2005 V6 2.7
Buckley, North Wales
1st Mar 2023 9:18 am
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10364
Be warned the glow plugs could well snap making it undriveable
1st Mar 2023 1:15 pm
cmb2020
Member Since: 08 Sep 2020
Location: Buckley, North Wales
Posts: 1150
Cheers mate I’ll be honest I’m looking for a Land Cruiser now as apparently they’re less problems and I think I’m tired of my disco always needing renewing and more so the stress related to repair waiting periods etc
Fixing the gear box on d3 today then selling upDisco 3 SE Manual 2005 V6 2.7
Buckley, North Wales
1st Mar 2023 3:02 pm
cmb2020
Member Since: 08 Sep 2020
Location: Buckley, North Wales
Posts: 1150
Hi all
I’ve been quoted £200 minimum plus vat to install this so I’m going to try do it myself
Pete K… I can’t quite understand your pin point for each terminal and wondered if you could check my below understanding?
See image for each of the 6 terminal tabs on the unit
1. PWM in = green/white wire from engine side going in to climate control
2. PWM out = green/white wire coming out of climate control panel (so IPCU is breaking circuit)
3. Ignition 12v (15) = aux battery constant power
4. Webasto 12v (86) = pre-heater remote 12v on (run long wire to cab IPCU to break circuit)
5. GND (85) = any ground point I can find behind climate control panel
6. Voltage setting = I don’t understand where this would go?
In theory I just need a long wire for the webasto remote 12v?
I could just hide the ipcu behind the climate control panel once set to the correct fan speed and leave it to work in sync with the remote start?
Cheers
Disco 3 SE Manual 2005 V6 2.7
Buckley, North Wales
22nd Mar 2023 7:57 pm
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10364
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