[JeremyD]

One of my first posts was to establish if I could fix the above problem and I still havent solved it. My dash keeps on telling me my FUSE 10 is blow but the FUSE is 100% and I have tested it and installed a new one to no avail. I realise now it has something to do with my seat heaters which are non functional although in Namibia I would rearly need them. The switch on the HEVAC illuminates when I turn the heaters on but nothing happens I have also tried unplugging the seats from the BECM and cleaning them but nothing. Im thinking that the problem could be a burnt out heating element inside the seat and my question to those who have replased yours is did you recieve a similar message when yours burnt out?

Other than that my other line of thought is that there is a problem within the BECM and I can only have that checked out when I get down to Cape Town

 

[TerryY]

Mine also has the Fuse 10 warning. The closest that I have read to an answer is that there is a transistor/thyristor in the BECM for fuse testing that has failed.

Sort of like the old neon fuse failed lights but electronic--if the fuse is good there is no voltage drop across it but if it is open there is a ~12v difference across the fuse holder and the warning comes on. If the electronic device is bad we get a warning as if the fuse is bad.

 

[JeremyD]

So the only solution would be to remove the BECM and have it repaired by a professional that should then remove the message and render the heated seats working again?

If that is the case im wondering how much this is going to cost?

 

[RRToadHall]

The message will have nothing to do with the seats working or not. BeCM message is strictly for the fuse and does not change the circuit power if faulty. Think of it like a bulb failure message. THe message just lets you know that a bulb is not registering correctly. THe BeCM doesn't shut down operations for that curcuit. Chances are your seat heaters have failed do to a broken element. Check in on the home page for testing and repair details.

 

[viperover]

Yeah it sounds like Becm, I've opened a couple to find a few fried tracks from people testing incorrectly.
There are two boards, upper gets signals from processing lower board, my guess and its just a guess is the upper board is at fault, not sure which circuit to investigate as its alot of board to solve, if only I could get hold of the manufacturers circuit diagram it would help

 

[John W]

The message will have nothing to do with the seats working or not. BeCM message is strictly for the fuse and does not change the circuit power if faulty. Think of it like a bulb failure message. THe message just lets you know that a bulb is not registering correctly. THe BeCM doesn't shut down operations for that curcuit. Chances are your seat heaters have failed do to a broken element. Check in on the home page for testing and repair details.

I will think you will find that in certain instances,such as bulb fail ,the BECM will in actual fact shut down operations for that circuit.If you replace a blown bulb(not that you normally would) without switching off the lights,then the new bulb will not work until the the light switch is cycled off/on. :think:

 

[ghur]

JeremyD. Contact me when you get back to Cape Town. I have got all the clever BECM software including unlocking.

 

[JeremyD]

ghur I deffinatly will do I will be down at the end of the month I did take my car to another reputiable dealer they plugged in and couldnt tell me my trinary pressure switch was dead.

Hopefully we can sort this little niggle out and a couple other just let me know what you drink and I will bring a couple round for your trouble

 

[ghur]

Now we are talking. Liquor always helps when dealing with these cars - it helps preserve the sanity...............

 

[mohddeeb]

I have the Fuse 10 fault since 3 years.. I gave up on fixing it a while ago and decided to ignore & live with it.
Now I enjoy the beeping sound of the message every time I start the car and I would not be able to live without it `)

I did the same with the constant buzzing sound I get from my wife :doh:

 

[JeremyD]

Ok seems I have managed to sort out most of the problems on my old gal! (holds thumbs) I however still have the fuse 10 error even after many attemps to sort it out I have now concluded it must be something in the BECM that is dead, I did have it out the other day and all looked ok how will I know if I need to replace a relay or a transistor? And does anyone by anychance know which one and what type it is and were to get them from? (holds thumbs again)

 

[JeremyD]

All sorted I replaced the upper deck in the becm all sorted now