[Swedish Steven]

The only aftermarket thing I know of, is the BT-puck in the armrest.

Looks like something is messing up your interior and/or engine CAN. Got any aftermarket stuff that messes with the CAN bus installed? I.e. Smarttop?

 

[Swedish Steven]

mchild

It seems to me that much of it is other modules reporting that some CAN comms is missing which would be the ESP is not talking to them. Kinda what I would expect if the ESP goes off line. @Sneaky Pete what do you see that indicates something other than the off line ESP module may be causing the issue?

, you know that my indy changed the ESP module to a brand new one? I have also a printout (DAS, done after the car fixed itself overnight, so the ESP module could be accessed and fault code could be read) where C1000 shows. I.e. "Check voltage supply to N47-5". I will try to check the SW and HW number on the new ESP-module and report back.

When I reset the N47-5 all other modules fault codes goes to "Historic".

 

[Squishband]

This little detective novella is, as so may are on the site, fascinating reading. Which is a pity as the fascination comes at the cost of your stress, disappointment and lightened wallet.
I hope you get it sorted out.

 

[Swedish Steven]

Anyway, I did take the Flawless for a spin with the iCarsoft connected today. All values seems to be OK. B30 is 13,43 V permanetly, all wheel speed senors shows exactly the same speed.

Checked the HW and SW on the new ESP module and they are HW 04.2007 and SW 03.2006. That makes me wonder - a new ESP module with HW 04.2007???

Attacted are a few photos of current measurements. Do you see any abnormaltites there?

 

[Swedish Steven]

Calling for help: @Sneaky Pete @mchild

Can I send you some beers? Anyway - love your attention to my problem. Hopefully - in the end - we/you helped someone else with this odd fault.

 

[i860]

Calling for help: @Sneaky Pete @mchild

Can I send you some beers? Anyway - love your attention to my problem. Hopefully - in the end - we/you helped someone else with this odd fault.

 

[Swedish Steven]

Ehhh, forgot you i860. I did mention you again and again before and feel now a bit low ..... I really appreciate all help I can get on this wierd fault.

 

[Sneaky Pete]

The only aftermarket thing I know of, is the BT-puck in the armrest.

Can't imagine a BT puck is causing this,besides afaik it is not on the CAN.
@mchild More a long shot, ESP module replaced SAM replaced still now and then no communication on the CAN bus with the ESP module, But only that module, so yes it would be weird if some other device is just messing up CAN communications with just that particular module.
@Swedish Steven ,did you ever check the connection of the ESP module to CAN connector X63/4? May have missed it but can't find anything about that in the thread. That's where the ESP module is connected to afaik. Maybe dodgy connection there? Just thinking out loud.

 

[Swedish Steven]

Hi Piet

Where is the X63/4 located? Looks like it's in the door - and I didn't know/check that. What is it doing there?

Can't imagine a BT puck is causing this,besides afaik it is not on the CAN.
@mchild More a long shot, ESP module replaced SAM replaced still now and then no communication on the CAN bus with the ESP module, But only that module, so yes it would be weird if some other device is just messing up CAN communications with just that particular module.
@Swedish Steven ,did you ever check the connection of the ESP module to CAN connector X63/4? May have missed it but can't find anything about that in the thread. That's where the ESP module is connected to afaik. Maybe dodgy connection there? Just thinking out loud.

View attachment 579614

View attachment 579615

 

[mchild]

Can't imagine a BT puck is causing this,besides afaik it is not on the CAN.
@mchild More a long shot, ESP module replaced SAM replaced still now and then no communication on the CAN bus with the ESP module, But only that module, so yes it would be weird if some other device is just messing up CAN communications with just that particular module.
@Swedish Steven ,did you ever check the connection of the ESP module to CAN connector X63/4? May have missed it but can't find anything about that in the thread. That's where the ESP module is connected to afaik. Maybe dodgy connection there? Just thinking out loud.



View attachment 579615

I agree that more examinaiton of the CAN connections is warranted. I also think that the cleaning of the connections is telling something about this. The female side of connections can easily get oversized to the point the that the male side of the connection is not making a good and complete connection. Making sure the female connections are not loose is critical here. For many of these connections removal of the individual wire connects is required to either tweak the connector so that the male pin makes solid contact or repalce the connector with a new one. I would be looking at the CAN and power supply and gound female connections.

 

[Swedish Steven]

Eagerly waiting for more info - I am knowing nothing;-)

I would be looking at the CAN and power supply and gound female connections.

 

[Sneaky Pete]

No, not in the door I think but somewhere at where the A-style meets the other part of the body. Personally I never took a look at it but sure someone else here has. The drawing locates it somewhere half between A style and bottom, in the pic the arrow or line points more to the bottom. But as said, sure that someone of the knowledgeable lot here knows. @mchild , @i860 ?
Was just wondering cause lots of other modules that reported problems,selector lever module,central gateway, etc are connected there. Maybe a red herring, but might be worth checking. Can get you the full wiring diagram of that connector if needed.

 

[mchild]

Hi Piet

Where is the X63/4 located? Looks like it's in the door - and I didn't know/check that. What is it doing there?

Here is the location: R171 X63-4 Location.pdf

 

[Sneaky Pete]

Ground point for N47/5 is W9.

 

[Swedish Steven]

Thanks mchild, I got it!

Here is the location: R171 X63-4 Location.pdf

 

[Swedish Steven]

Will double check W9, but pretty shure I have already done that.

Ground point for N47/5 is W9.

View attachment 579617

 

[mchild]

Also from the @Sneaky Pete wiring diagram the CAN connector from the ESP at X63/4 is location 4. All the wires will be Green/White and Green so you can't go by colors. Also ground W9 is located behing the left side headlight. There will be a number of wires all connected there - all brown in color. The mounting point may be corroded and if so a complete clean out of all the corrosion is needed. If corroded is not the issue then it coould be a bad connection of the wire the the eyelet. while the car is running and you are watching your scan tool wiggle those wires and do the same with each of the wires in the ESP connection and see if it will cause a fault. Good soliid wiggle should not cause a connection to temporarily break.

 

[Swedish Steven]

Hey all you helpful guys - think and hope we will get there and done that!

@mchild , @i860 , @Sneaky Pete

 

[Swedish Steven]

Got that and will do that! Many thanks!

Also from the @Sneaky Pete wiring diagram the CAN connector from the ESP at X63/4 is location 4. All the wires will be Green/White and Green so you can't go by colors. Also ground W9 is located behing the left side headlight. There will be a number of wires all connected there - all brown in color. The mounting point may be corroded and if so a complete clean out of all the corrosion is needed. If corroded is not the issue then it coould be a bad connection of the wire the the eyelet. while the car is running and you are watching your scan tool wiggle those wires and do the same with each of the wires in the ESP connection and see if it will cause a fault. Good soliid wiggle should not cause a connection to temporarily break.

 

[mchild]

The location of X63/4 would have me looking very carefully to see if water has ever been in that location. That location is prime for that.