Berlingo Error Messages / CAN Error

[noboc]

Hello everyone,
unfortunately my Berlingo Bj2014 is giving strange error messages. The car starts, you drive off, and then after a few meters you get error messages like ABS defect, brake system defect, engine error, transmission defect, etc. Always in different constellations. This then causes the car to stop and the gear to jump to N (it's an automatic). Errors can be deleted but they come back straight away. A defective BSM was diagnosed and replaced in the Citroen workshop, unfortunately without success.
Apparently there are CAN communication errors...I have already replaced the vehicle battery. Does anyone have an idea where else we can look? According to the workshop it could also be the ECU? I had therefore already thought about replacing the ECU and BSI as well as the WS transponder. Unfortunately, I don't know in detail which parts I would need. I don't know if that really solves the problem either.

[GiveMeABreak]

Without proper diagnostic codes we can't really help. But If you have had this an official Citroen dealership they should be able to determine the problem as they have all the correct diagnostics.

[noboc]

The workshop just called and said they're giving up the search...we can't find the error. I'm slowly losing my faith in the Citroen workshop. It can't be that this problem can't be fixed. After all, the car was still running perfectly a few weeks ago. I'll ask the workshop for the error codes or read them myself when the vehicle is back here. I have Lexia.

[noboc]

Today I received the error codes or reports as PDF. I have attached it as a ZIP here. Would be nice if you can look

[The extension zip has been deactivated and can no longer be displayed.]

[RichardW]

It may be that the P0227 is causing interruptions to the CAN data which are causing the other issues. You need to look at the live data for the throttle pedal to see if it is dropping out or inconsistent.

[noboc]

as I understood it, the P0227 was in it when I had the car towed there. Then they deleted and then came the other errors. Could that still be related. Because everything that comes in the way of mistakes happens while driving, so when I move the accelerator pedal...

[noboc]

So the vehicle is now back in our hall. What I noticed today was that the battery light in the dashboard was flashing when I only switched on the ignition?? I then started the car again and drove maybe a meter and again stop, gear to N.
How can I use Lexia to monitor the accelerator pedal sensor in the live values or how do I recognize a malfunction?

[RichardW]

Go in and clear all the codes, and then see what comes back. If you look in the engine ECU and then Parameter Measurements you should be able to see the position of the pedal.

[noboc]

Today I connected Lexia to the vehicle. First, I cleared all the errors. Then I looked at the accelerator pedal in the parameter values. The signal voltages are 0405 mV at level one and 0200 mV at level two without pressing the pedal. The position of the pedal can be read in a percentage value, which is 000% without pressing the pedal. When you press the pedal, the voltage values and the percentage value change, but very slowly.
What I also noticed, if you press the pedal to the stop, then the position is max 099%.
Are the voltage values correct, because there is actually 0.4 or 0.2V without an actuation.

Almost forgotten, after deleting the errors there were no new ones, but I only drove a few meters.... But the problem is still not solved, because that's how it was before

[noboc]

Does no one have an answer for me for the voltage values of the accelerator pedal?

[noboc]

Even if no one here in the forum has contributed anything to my problem after my last post...... nevertheless, I will tell you the solution here.

All error messages were not real errors but simply follow-up errors of the main problem. It was due to the ABS sensor front left. This was at no time as an error in Lexia. After I removed the sensor, I could already see the problem. Rust. The contact surface of the sensor was heavily rusted and virtually lifted the sensor... This means that the distance to the magnetic ring is no longer correct. After I knocked the rust away with a screwdriver and the sensor was reinstalled, all messages were eliminated and the car drives perfectly again.

[Paul-R]

Thank you for posting your solution and it's unfortunate that no-one was able to contribute from here.

Yours is actually not the first problem posted here recently that turned out to be an ABS sensor at the root of the problem. Glad you found it though and at least it was a cheap fix!