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| dgardel Member Since: 30 Nov 2008 Location: Veneto (Heart & Head) Posts: 3586  
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Look at here:
https://svkbzq.dm.files.1drv.com/y4mJ8mfzq...amp;psid=1 Discovery 5 td6 HSE Stornoway Gray Outback Engineering Limited Edition 
IID Pro MV License |
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2nd Dec 2018 10:35pm |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6603  
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The Freelander 1/L322/R75 one can be started or run with a simple switch or remote.
The D3/RRS one needs a WBUS communications bus controller to operate it. There are some relatively cheap third party controllers or Webasto options. I sell lots of the connectors for both types in the site shop: www.defender2.net/shop 1988 90 Td5 NAS soft top
2015 D90 XS SW |
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2nd Jan 2019 10:14pm |
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| Badger110 Member Since: 06 Feb 2018 Location: South hams Posts: 1039 
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Cheers martin
There are some refurbed units on the bay ( Type C universal ) as well as a L322 unit ( Type C ) I'll make some enquiries and i'll become a customer if i need some connectors |
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2nd Jan 2019 10:20pm |
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| TJH1985 Member Since: 22 Aug 2016 Location: Midlands Posts: 238
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Mines from a peugeot 807 / Citroen C8, they come mounted on a bracket complete with water pump, fuel pump, exhaust and air filter and don’t seem to sell for much. Simple +12v to fire it up.
Mines wired up with manual switches in the car for Heater & Fan and a controller for remote start via text
Easily the best modification I’ve made. I’ve added a few pics to my thread. Last edited by TJH1985 on 3rd Jan 2019 7:41am. Edited 1 time in total |
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2nd Jan 2019 11:06pm |
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| Badger110 Member Since: 06 Feb 2018 Location: South hams Posts: 1039
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Good find TJH
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3rd Jan 2019 7:00am |
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| TJH1985 Member Since: 22 Aug 2016 Location: Midlands Posts: 238
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Hey Martin, How do you start a L322 unit with a simple switch? I couldn’t get ours from a TDV8 to fire manually off the car without BUS. Am I missing a trick, would be great for testing 
Thanks, Tom Last edited by TJH1985 on 4th Jan 2019 11:47am. Edited 1 time in total |
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3rd Jan 2019 7:44am |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6603
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Switching Pin 1 of the 6 pin plug to 12V should start it - same as FL/75 unit.
Do you know what year L322 your Thermo Top is from? 1988 90 Td5 NAS soft top
2015 D90 XS SW |
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3rd Jan 2019 10:13am |
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| TJH1985 Member Since: 22 Aug 2016 Location: Midlands Posts: 238
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It’s a 2008, and doesn’t fire with the +12 how strange. The +12v is how we trigger it on the Defender.
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3rd Jan 2019 10:32am |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6603
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That's odd, as the factory L322 installation uses the pin 1 connection for the Telestart (remote fob) operation.
Click image to enlarge 1988 90 Td5 NAS soft top
2015 D90 XS SW |
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3rd Jan 2019 10:44am |
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| TJH1985 Member Since: 22 Aug 2016 Location: Midlands Posts: 238
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I have telestart which works, so must have been user error
 I will check that out, in the end it was an easy fix as the circulation pump had failed so it was shutting down on temperature. |
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3rd Jan 2019 11:11am |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6603
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I’ve ordered an L322 TTC to have a play with.
1988 90 Td5 NAS soft top
2015 D90 XS SW |
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3rd Jan 2019 7:29pm |
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| Badger110 Member Since: 06 Feb 2018 Location: South hams Posts: 1039
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So does that diagram work with a 2002 - 2005 L322?
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3rd Jan 2019 8:08pm |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6603
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As far as I can see, all the L322 FBHs are wired the same.
I have come across this tonight: https://www.fullfatrr.com/wiki/FBH This suggests the L322 Thermo Top sends a message out to the aircon ECU (ATC), which it needs a reply to in order to start up when using pin 1 to trigger it  1988 90 Td5 NAS soft top
2015 D90 XS SW |
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3rd Jan 2019 10:42pm |
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| TJH1985 Member Since: 22 Aug 2016 Location: Midlands Posts: 238
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I just had a look in the workshop manual and I have highlighted this in the past which seems identical to the wiki:
When parked heating/ventilation is selected on with the remote handset, the request is received by the FFBH receiver via the TV antenna and TV antenna amplifier. The FFBH receiver relays the request as a hardwired signal to the FFBH control module. On receipt of the request, the FFBH control module sends the request to the ATC module and the instrument cluster on the K bus. Parked heating/ventilation then operates as detailed above. On receipt of the messages: The climate set indicator on the TSD panel flashes at 2 Hz to indicate that parked heating/ventilation is active. If the ambient temperature is less than 5 °C (41 °F), the GEM activates the door mirror heaters for 3 minutes. If parked heating is activated, the ATC module: - Energizes the changeover valve. - Sends a K bus message to activate the FFBH. - Operates the blower at speed 1. - Opens the windscreen distribution doors in the heater assembly and closes the face and footwell doors. If parked ventilation is activated, the ATC module: - Operates the blower at speed 1. - Opens the face level distribution doors in the heater assembly and closes the windscreen and footwell doors. Seems the car is very much in control of the whole operation. Shame as they are easy units to find. |
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3rd Jan 2019 11:43pm |
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