Hi all my first post on here!

Last year I bought a 2011 4.4 tdv8 vogue se. What a motor! Anyway, everything works at the mo except the FBH and timed climate. It doesn't work off the infotainment and does some weird things off the remote. However during the cold snap recently it has fired up with the engine no problem.

I'm a maintenance fitter so its my nature to get it working! I've spent hours reading all the posts by other members which has been great for the background info. I've also got the workshop manual which describes its operation and parameters for it's operation. I've also had the FBH and change over valve apart to make sure no mechanical fault and they are like new, so very little use.

My IId tool indicates all is enabled but during operation test comes back with an E7 failure code more times than it is successful. I've read the posts relating to French Mike and his findings on the PCB failures. Very useful.

My question is does the manual vent on the infotainment screen work through the FBH PCB ECU as well?. If it does and I have a faulty PCB, it explains why I possibly can't get it to work off the soft key as well as the manual heat.

Many Thanks

Following with interest -- as I get E7 on every attempt  Current: 2011 FFRR Vogue SE 4.4 TDV8
Previous: -
2004 FFRR Vogue 4.4 V8 with LPG
1997 P38 4.0 SE with LPG
1997 P38 4.6 Vogue with LPG

Not that this helps, but mine works fine from the timed climate and the remote, but not the manual option on the screen!

I did have some problems initially with mine which I believe were due to a failing battery. Following battery replacement, it has worked perfectly (apart from the manual option). I don't recall mine reporting any errors, it just didn't fire up. 2010 4.4 TDV8 Vogue SE

You get the E7 when testing with IID, I have failed everyone to get IID to connect to the FBH,

Something in my system works as the fans to come in the morning if requested from the fob, never tried using the timer.

So my next port of call was to reset the FBH, by pulling the fuse, but which one? The 2010 manual says fuse 13E, is that in the engine bay? Current: 2011 FFRR Vogue SE 4.4 TDV8
Previous: -
2004 FFRR Vogue 4.4 V8 with LPG
1997 P38 4.0 SE with LPG
1997 P38 4.6 Vogue with LPG

The FBH is a fickle system.

In short they need annual servicing but they are out of mind until the cold weather hits!

. Cheers, Greg
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2011 Vogue SE 4.4 with lots of toys in Stornaway

Bushy30 wrote:

So my next port of call was to reset the FBH, by pulling the fuse, but which one? The 2010 manual says fuse 13E, is that in the engine bay?

What's the fuse pulling process? When engine off or running?? Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
--------------------------------------------------

Pulling the fuse is no guarantee of clearing the fault codes. Better to use a fault code clearer even the cheap ones do the trick.

Thanks Kooky

Gary, not sure I understand, my unit will not let me communicate with it, at all, E7 everyone, I was hoping a fuse pull might reset it to allow communication and read faults Current: 2011 FFRR Vogue SE 4.4 TDV8
Previous: -
2004 FFRR Vogue 4.4 V8 with LPG
1997 P38 4.0 SE with LPG
1997 P38 4.6 Vogue with LPG

It sets an OBD11 code after 3/5 no starts or fuel too low that needs to be cleared before it will start again. I was saying any budget code reader will cear it via the OBD11 port..

https://www.amazon.co.uk/dp/B001CBBY7O/ref...2185045820

Gary, thanks that makes sense, so the fact the IID can't communicate with it suggest something more fundamental than a simple reset by removing the fuse I would suspect! Other than the fuse being blown I suppose!!! Current: 2011 FFRR Vogue SE 4.4 TDV8
Previous: -
2004 FFRR Vogue 4.4 V8 with LPG
1997 P38 4.0 SE with LPG
1997 P38 4.6 Vogue with LPG

DrRob wrote:

What's the fuse pulling process? When engine off or running??

Hi All,

Regarding my initial post about the fuel burner and the E7 code on the IID, I'm talking to Gap at the moment hoping they can point me in some direction, PLEASE!!

I checked the CCF to make sure all the FBH settings where enabled. They were. I then disabled them and re-enabled them. Now when I press the timed climate heat or vent the actuators actually move but nothing else.

Starting the car yesterday and today, to do more tests, the FBH fired up no problem. So I know something ( engine ecu?) can communicate with the FBH yet it will not work off the screen or remote

I have an idea that it's the LR software that's fickle not the unit. There is really nothing mechanically complicated inside them.

I have spoken with Webasto and as others have correctly noted, we can't by a control board off them because LR own the rights to the software. So it has to be sourced from the main stealer.

I did try and find someone to talk with at my local main stealers, but I couldn't get past the receptionist who kindly informed me that my car would have to be booked in for an initial diagnostic check.

"Can your software interrogate the FBH ECU or will they just be swapping parts until it works?" I asked. Blank face!!!

I must book it in for a diagnostic session for an hour at a cost of £168 plus VAT I was told again.

Absolutely disgusting I thought as I looked at the technicians through the big glass wall in the brand new workshop that looks like a hotel foyer. Wonder how they pay for that!

So I'm still no further on. I don't know if its a comms error, a software issue or a fault/ intermittent fault on the board.

If i get any results, i'll post them up.

 Current: 2011 FFRR Vogue SE 4.4 TDV8
Previous: -
2004 FFRR Vogue 4.4 V8 with LPG
1997 P38 4.0 SE with LPG
1997 P38 4.6 Vogue with LPG

Hi TF,

just a bit from my experiences. Had an FBH that didn't work at all on my TD6 and rebuilt that checking the PCB etc, turned out to be the diesel fuel pump which was so inaccessible I didn't bother.

Anyway, now have an '11 TDV8 which has similar symptoms to yours which I have had some success with, basically all down to battery, but to give a bit of insight into my process see below.

Symptom:
1. FBH won't work from Timer, manual heat or fob when engine is cold/non running. SOmetimes the HVAC switch (centre dial for fan speed) will light up and the FBH will cycle but shuts down before firing up.
2. FBH automatically starts when below 5c and engine is running, you can hear the pump clicking in the back seat area. i.e. it is working with the engine running as intended as an assistance to warming the car up
3. If you park up after the car is warmed up and hit manual heat the ventilation system kicks in but the FBH does not fire (no pump running etc) i.e. the HVAC is working in a "residual heat" mode and keeps the car warm whilst you eat your fish 'n chips by using the residual heat in the heater.

Diagnosis:
1. I have had no battery/starting problems at all, even after using IID etc the FF starts fine. I checked the battery voltage 1st thing on a cold morning prior to starting and it was reading 12.0v
2. Using IID I monitored battery voltage whilst hitting the manual heat button. Voltage dropped to 11.9v which led me to suspect that the low voltage was causing the unit to shut down as it was triggering a low battery condition which is a failsafe I think the system has.
3. Car still started fine, no slow cranking or anything. IID was showing battery at 89% charged although these numbers are I believe very approximate
4. When running IID is showing 14.2v so alternator/charging circuit seems to be working fine

Rectification:
1. Rather than go and buy a new AGM battery straight away (mine has a replacement Varta 019 that had been fitted previous to my ownership) I thought I would try and recover my battery. I have a CTEK charger that has a recondition mode which after a full charge cycle pulses the battery to create gassing and de-sulphate the cells (apparantly ).
2. Ran the battery with the CTEK overnight until it was fully charged and had finished the recon cycle.
3. Tested the battery voltage the next day on refitting and it was showing 12.2v, IID showing battery at 95% charged.
4. Using the timed climate I fired the FBH (from cold) and low and behold it worked Voltage dropped 0.1v and then went back to 12.2v when the FBH had finished.
5. Couldn't get the manual heat to work yesterday, but wondered if that was because I had been using timed etc and sometimes I have found the FBH to be a bit fickle!
6. Went out this morning ( in the snow rather aptly ), got in and pressed manual heat and yay, it fired straight up again.

Conclusion:
1. The FBH is very sensitive to residual voltage in the battery. Even if the FF is starting/running fine if there isn't over 12v it is likely to fail the FBH self test. Before anything else it is worth checking the battery voltage with IID or a voltmeter before firing up on a cold morning and seeing what the readings are pre and post pressing the manual heat.
2. My remote fob still isn't working so I think I have an issue with that which is unrelated to FBH operation. I need to read up on how it works and maybe re-code to the vehicle or something

Long winded answer but hopefully the diagnostic process will help someone

Cheers,

Paul. 2011 TDV8 AB
2006 TD6 AB (Gone to Wales)