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

[koalar]

Let get it back up and together and test the resistance from the ECU end

Let see if reseating everything has made a difference, contacts oxide up

see if multiECUscan can see the network

 

[RDM1]

What do you mean? Test where on the ECU?

 

[RDM1]

Let get it back up and together and test the resistance from the ECU end

Let see if reseating everything has made a difference, contacts oxide up

see if multiECUscan can see the network

Definitely no contact oxides because I have removed and replaced the BCM on the car about 5 times total myself

 

[RDM1]

Something is fishy here i think the ECU is acting up but i have a question i wanna ask because people have been planting some doubts in my case: in case the ECU was fried and needed replacement is it safe to be replaced without the BCM? Because they said the BCM can fry it again and apparently the current ECU is the 2nd or 3rd one for the car

 

[koalar]

Is it consistent

Is it the same with both the KKL cable and the elm327

What the result of the multiECUscan elm327 adaptor test

What happens if you try and scan with the ECU disconnected

Never heard of a BCM killing a ECU

A faulty coil pack use to kill the ECU on the Punto, never heard of the same happening on the Panda

Good chance if it's on its 3rd ECU there's something else going on, the ECU is pretty reliable

 

[RDM1]

Is it consistent

Is it the same with both the KKL cable and the elm327

What the result of the multiECUscan elm327 adaptor test

What happens if you try and scan with the ECU disconnected

Never heard of a BCM killing a ECU

A faulty coil pack use to kill the ECU on the Punto, never heard of the same happening on the Panda

Good chance if it's on its 3rd ECU there's something else going on, the ECU is pretty reliable

The cable obd2 never connected and the Bluetooth one won't autoconnect so i manually set it to com4 and connect it and that's what I'm getting, failing to connect to everything apart the ECU and i have pretty much nothing to do as the checking fault codes stays forever and won't return clean or faulty and all other systems fail to connect EPS, TCM, dashboard, airbag,...

As for the 2nd or 3rd ECU that's because a professional fiat repair guy told me that it was changed but how many times is unknown (obvious as mes is telling me that the car is 162k km whereas the dashboard says 75k km)

 

[koalar]

Does it connect with you other scan tool

 

[RDM1]

Yeah all modules does on ancel but there's no canbus unfortunately

 

[koalar]

Any errors on any of the modules

 

[RDM1]

Nope only the
9022 on the bcm
Throttle stop learn on the ECU
p0335 on the ECU

 

[RDM1]

9022 is very frequent but the other 2 are new and very intermittent as in they show a lot or don't appear for a long time

 

[RDM1]

And even when p0335 is here i have RPM feedback from the ECU which makes me confused as to why i am getting the fault

 

[koalar]

Let's have a recap again

Ground okay at ECU
Ground okay at engine block
Camshaft sensor being read
Crankshaft sensor being read
Timing is correct
Key being read
Brake switch working
Power to the injector
Power to the coils
Power to the pump
Gearbox in neutral
compression is okayi
locksmith checked the key information
5V reference is okay
C CAN resistance is okay
C CAN isn't shorted to ground or power
BCM connectors aren't corroded


no spark from any coil, while cranking
no spark from any coil, via scan tools
no click from any injector, while cranking
no click from any injector, via scan tools
Immobilizer system random errors
9022
Throttle stop learn on the ECU
P0335


Wasn't working at all
Then worked for a bit
Then isn't working at all
The car randomly starts working again

 

[RDM1]

Yep that sums it all up but you never know when the car will work again and for how long the car will work all by itself when it decides to.

 

[koalar]

The

IAW 5NF ECU in other models such as the stilo fail with

Random P0335
No spark
No injector
Throttle errors
Loss of communication

Can be temperature related, in it can start then cut out


And is normally either solder on the connector pins or the processor needs reballing depending in who you believe

Does it get very hot where you are, or does the car climb very steep hills where the engine bay gets very hot

We don't see it the Panda normally, which is strange as it's already had a ECU

 

[RDM1]

Well the car was at the coast with very high temperatures reaching about 40 degrees Celsius as for with me now for the past 5 years or so I'm at 1300m with relatively low temperatures even in summer but the car used to get some trips away but they weren't many as for steep hills all my trips are steep hill as in 30 minutes you go from ocean level to 1300m lol

 

[koalar]

Everything pointing to the ECU

Without specialized equipment it's very hard to confirm 100%

The fact we can command the power going to the injectors and coils via software

But can not command the switched ground side via software on either the injectors or coils

Is as close as we are going to get

We have four out of the five common faults

Magneti Marelli IAW 5NF - ECU Repair - ACTRONICS LTD

Magneti Marelli IAW 5NF problems? We are here to help. Specialist in remanufacturing and 2-year warranty. 92% recommends us. Submit your order online.

www.actronics.co.uk

 

[RDM1]

Ok so 2 questions:

First if the ECU is dead why is the immobilizer blinking?

2nd what specialized equipment do we need to determine it?

 

[koalar]

Profession repaires will have a special test rig and software, that will systematically step through each part of the ECU with simulated inputs and outputs while cycle the temperature and measuring feedback


We have done the best we can, with what we have

Assuming I have missed something obvious

It's likely to require the processors BGA to be reballed to fix it properly

 

[RDM1]

Mate can i ask you for us to chat privately somewhere? Discord,whatsapp,etc...