Technical '06 Panda crank sensor issue.....

[RDM1]

If that's the case I'll do it after i get the multimeter so we'd get accurate values unless you got me something to test with the BCM torn out of the car

 

[koalar]

At the ABS connector

Do you have 2 green wires and 2 brown wires

 

[RDM1]

No idea gonna go up and remove its back cover

 

[koalar]

At the ABS connector

Do you have 2 green wires and 2 brown wires

 

[RDM1]

I don't know I'm going to pull the loom's back cover

 

[RDM1]

Brown white
Brown green
Brown yellow
And brown black

 

[RDM1]

Are they possibly the ones we're after?

 

[koalar]

Are they possibly the ones we're after?

Can't see it there

A couple of wire look like they have covers over them are they underneath, black in the photo

The will be twisted together

 

[RDM1]

I marked you the wires colors and the one that are possibly braided are:
Red-white
Black-white
Brown-black
As you can see in the 2nd picture

 

[koalar]

None of them

What about these

One looks like black and purple for the other network


But it's still

Solid brown and
Solid green

we are looking for

I have over a dozen different circuit diagrams

All are use the same colours

4x4
ESP
Post 2008
LPG
Dualogic

And so on

 

[RDM1]

The upper 2 are on the brake pump and the lower 2 I don't know I'll check when i have someone to fill in

 

[RDM1]

Does using continuity from the pins on the back of the bcm and finding which one on the ABS work?

 

[RDM1]

Hello these are the wires you marked last time they refer to the oil pressure on the brakes and gearbox now there is this large plug that i think is for the gearbox want me to check the wires in it? Or is it definitely not and must check the looms on TCM? Now it is handy if we could find the 2nd 2 pins can related from the BCM. Got any idea which ones they might be if 11 and 20 are obd2 can low and high? Isn't it possible to be found through a similar diagram?

 

[RDM1]

Now you asked for a solid green and solid pink wires found those in the plug on the bottom of the BCM with the headlights with (you can see how it is burnt before i got the car) anyway are those the wires you're looking for?

 

[RDM1]

Oh and by the way got a new professional catIII catIV multimeter now all values are 100% accurate

 

[koalar]

We have two different networks we we can not find any, frustrating

C CAN and B CAN

Worse than that

The ABS should have two wires going in and two wires going out

Fiat have always used solid green and solid brown

They will be twisted pairs, and may or may not be shielded,

4 for one network and 2 for the other that 6 wires that's vanished

And we can't find the two wires on the ECU

It does not come out to the OBD port but ends at the body computer

Pin 11 and 12

 

[RDM1]

Ok listen i can find them with continuity if we can find a lead like for example the ABS can bus is connected to pin 32 and 40 lets say so i prob, the 32 and start searching on the ABS. That's how i found the obd2 connector can and where they were headed it's easy if we have some sort of lead

 

[RDM1]

But what makes it easier is my theory that the BCM canbus is busted because I'm still getting OL even with the new meter when i connect the can plug on the back of the BCM instead of as you said and showed in the video of getting 60 ohms

 

[koalar]

Remember fiat output the parallel canbus to the OBD, it stops at the BCM, we don't know what the resistance if any they should be

Which is why I ask for someone to check there's as I don't have my car here at the moment

Most other manufacturers output a standard serial Canbus to those pins

Which should be 60 ohms, this network on the fiat ends at the BCM pins 11 and 12 connector D here should be 60 ohms

Until you find the green and brown wires or confirmed C canbus wires on any node on the network you can't test the resistance on random wires and get a meaningfully result

 

[RDM1]

I mean shouldn't i get 60 ohms between the can low and high on the obd2 port?