Member Since: 20 Nov 2016
Location: Stourbridge
Posts: 401
Cabin fans start then the heater starts 5-10 seconds after.
21st Oct 2017 4:43 pm
Sly666
Member Since: 14 Dec 2014
Location: East Sussex
Posts: 459
Can you explain what your doing in more detail please?
21st Oct 2017 4:44 pm
daviesto
Member Since: 18 May 2015
Location: Reading, Berks
Posts: 67
Promising that Jubbly got this working with the new wires. Unfortunately the set that Martin sent to me has disappeared into the Royal Mail ether. Any chance of another set Martin so I can try and verify what Jubbly found?
21st Oct 2017 4:45 pm
Martin Site Admin and Owner
Member Since: 06 Nov 2004
Location: Hook Norton
Posts: 18565
As I said in my PM can you give it a couple more days for Royal Mail to find it please?06 D3 SE / 15 LR D90 XS SW / 88 LR 90 Td5 / 68 BMW 2000 ti
Any issues with the site let me know!
21st Oct 2017 5:10 pm
Martin Site Admin and Owner
Member Since: 06 Nov 2004
Location: Hook Norton
Posts: 18565
Sly666 wrote:
OK ive figured this out and got the heater running by directly injecting code.
It also starts the cabin fan and warms the inside too
Forget about using the WTT software as its sending the wrong command to start the heater!
Not an option for most people though 06 D3 SE / 15 LR D90 XS SW / 88 LR 90 Td5 / 68 BMW 2000 ti
Any issues with the site let me know!
21st Oct 2017 5:12 pm
Jubbly
Member Since: 20 Nov 2016
Location: Stourbridge
Posts: 401
All I’m doing is following the instructions lol.
Using wtt 3.0
Select the left hand menu for w-bus (<=v3.5)
That opens 2.16.1
I click the start diagnostics button and it connects.
Then I can click the parking heating button and it fires up.
Though if I click the aux heating button I get an nak error.
21st Oct 2017 5:35 pm
Sly666
Member Since: 14 Dec 2014
Location: East Sussex
Posts: 459
Jubbly
Are the yellow High and Low speed CAN Bus wire still connected when you run the heater?
21st Oct 2017 5:42 pm
Martin Site Admin and Owner
Member Since: 06 Nov 2004
Location: Hook Norton
Posts: 18565
He did say that he fitted the wires I sent him - these connect the CAN bus 06 D3 SE / 15 LR D90 XS SW / 88 LR 90 Td5 / 68 BMW 2000 ti
Any issues with the site let me know!
21st Oct 2017 5:48 pm
Jubbly
Member Since: 20 Nov 2016
Location: Stourbridge
Posts: 401
I did fit them and they were connected, in fact to start with it wouldn't work, on double checking I had them in the wrong numbers, refitted and it fired up. so I had the pink and white in the opposite numbers, white to pink etc, as soon as it was correct it worked.
21st Oct 2017 6:42 pm
Surfup03
Member Since: 27 Mar 2017
Location: London
Posts: 16
Hi all.
I thought I'd try one last time and what do you know bingo yes the can bus leads seem to have sorted it it goes to fire and stops im getting a fault code off 22h refrence resistance wrong, quick look on the net and it points to a fault with the glow plug.
Far too late this evening to think anymore about the heater but glad I can attest control it from pc, very strange how iid tool says it's ok though. Feeling confused .
Thanks everyone.
21st Oct 2017 6:50 pm
Sly666
Member Since: 14 Dec 2014
Location: East Sussex
Posts: 459
Pulling my hair out on this now...
This FBH has a mind of its own. One min it will work using WTT then it wont.
Yesterday i had it running continuously with no issue.
Today it tends to mostly ignore WTT software start commands, but when it does start it will run up for about 1 min then shut down again.
If i start it using the Timed Climate "manual Start" button, it does the same and stops after 1 min.
Sometimes, (not every time) i get a low voltage fault stored on the heater. But i'm doing this with a 40 Amp power supply on the battery which maintains it at 13.6 volts!
See this pic...
Click image to enlarge
The car radio also complains of low battery and shuts down too. I have to start the engine to reset this.
Im not sure if this is just a timer or its actually measuring the voltage.
Again, this happens even with the power supply connected to the battery, so voltage is up at 13.6 volts. (i checked this with a meter)
Whats going on!?!!??!?!
22nd Oct 2017 2:49 pm
Surfup03
Member Since: 27 Mar 2017
Location: London
Posts: 16
Would getting the polarity the wrong way round on the canbus wires damage the ECU?
Try without the battery charger on because that's extremely high nearly 14 volts maybe over the threshold
22nd Oct 2017 3:43 pm
Jubbly
Member Since: 20 Nov 2016
Location: Stourbridge
Posts: 401
I must say my car this afternoon told me my battery was to low for timed climate, showed 12.3v without the engine running.
Though happy my heater works most mornings now
Though can you turn the heater on from inside the car, if you were waiting for someone SWMBO to do a few hours shopping?
22nd Oct 2017 6:14 pm
Surfup03
Member Since: 27 Mar 2017
Location: London
Posts: 16
Mines stopped working again software wont try to fire just cabin fans!
Can someone conform if it's because the cars warm only I remember last night car was cold as not used all day?
Starting to think webasto software stays within the LR limits maybe something built in heater module.
22nd Oct 2017 9:17 pm
Surfup03
Member Since: 27 Mar 2017
Location: London
Posts: 16
Update!! To cut long story short glow pin error fault for me 120 pound later nice second hand unit diy fitted.
The night I fitted the new unit the software wouldn't fire the heater only fans. But tonight finally got the thing to work yay
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