[Gav]

Hello,

Can Anyone here point me to a thread that show where i need to solder the wires to read the eeprom ??? I havent found not one DIY for x260 so far.

Because the x260 doesn’t suffer from this problem

 

[Gav]

Well, my x260 doess, at least i think ?
Or what else it can be, when my car doesnt recognise keys, no ignition, and alot more trouble ofcourse ?

Cant immobilise from service funtions, fails always to syncronise needed modules.

Basically its 2t paperweight at the moment

Have you scanned for codes?

 

[Gav]

I’d echo what Alan says if one module on the bus is faulty and bringing it down, you’ll need an optical loop to bypass modules. But you’re the first to report this on an x260!

 

[Gav]

What cable are you using wit’s SDD?

 

[Gav]

When you plug it in the dash doesn’t light up like a Christmas tree does it?

see here on my x260

https://www.jaginfo.org/threads/how-to-add-options-to-your-car-via-ssd-part-1-of-2.112926/?post_id=2856022#post-2856022

 

[Gav]

What year is your x260?

 

[Gav]

MY17 but registerewd in 16

That adapter says 2007-2016 which is x250

 

[Gav]

When you plug it in the dash doesn’t light up like a Christmas tree does it?

 

[Gav]

I’d say you’ve got a wiring fault or the adapter you’re using isn’t compatible but I’m no expert

 

[Gav]

Here you are using that cheap chinese clone mongoose on your X260 ??
Thatmeans those MY17 x260 arent DOIP yet, otherwise you couldnt do that with sdd on you that x260 ??? correct me if im wrong ?

And most of these chinese mongoose has on theyr description also that they wont support for x260.
So im a little confused

Yeah I used a mangoose! Cable had to snip pin 13 though for the x260 as if you didn’t simply plugging in the lead made the dash light up!

 

[Gav]

Just be be clear, IF when you plug your mongoose cable into the obd2 port and turn on the ignition, and it lights up, then you need to snip pin 13 on the mongoose cable NOT the obd2 port.

Stock photo, check you’re actually snipping pin 13 on the lead they should be numbered

 

[Gav]

Think you’re right most of the modules are on the ms-can bus so should just be wired. No optical as that’s fast and not needed.
Have you tired SDD with a suitable power supply and a snipped pin 13 on your mongoose yet?

 

[Gav]

Check resistance on the bus too should be around 120 ohms

 

[Gav]

You mean the resistance on the twisted copper pair ?????

Or measured from module with can bus disconnected ?

120 ohms at each end so if measuring across the two wires 60Ohms

 

[Gav]

this is how the can bus is wired, so if you measure across can high and can low with a meter with everything off you should read 60 Ohms - 120 Ohm’s in parallel = 60 Ohms

The can bus I think is blue/white and white/blue
The resistors could be anywhere, they’re there a load for the signal to drive into and to stop reflections on the wire

 

[Gav]

OK, i got it now what you mean by across can hi and can low.

Stilla little faque about the paraller part

And Wich of the can bus wires is hi and wich is low ?

I actually cant thank you guys enough
I might even have a chance to get this paperweight running with your knowledge and patience with me

for parallel resistors search ohm’s law.
I’m guessing what colour wire is in the XF I thought it was blue/white and white/blue but not sure.
Google might help you.