kiev wrote:Howdy Huba,
What are the Diagnostic Trouble Codes (DTC) that your car has stored?
Your low voltage symptoms (~2VDC) would seem to cause a different code than the other folks had in this particular discussion thread.
It sounds as if your Main Contactors are not being engaged in the sequence to get to READY. The Contactors are located within the HV Battery Pack and are controlled by the EV-ECU located under the rear seat.
i would recommend that you have your car checked by someone with a MUT or Lexia to read out the DTC, then the troubleshooting will be much easier. You can also purchase a scantool that will read out those codes, such as an iCarsoft i909 scanner. Maybe someone in your area has such a tool and will help get the reading.
You have made all the manual measurements that are meaningful at this time and verified that no voltage is reaching the MCU, so now you need to find out what the system thinks is wrong in order to correct the issue.
Welcome and good luck to you,
Thank you so much for your help and implication. It is such a great help!
So let me start at the beginning:
I bought a defective Peugeot two years ago, it had water in the battery pack, and I managed to repair it without any additional help from you guys, just by reading the forum. One battery BMU was fried, managed to get another one and to write the eeprom. S that car is 100%ok (besides of the airbag ecu, which is toasted, and I couldn't find a used one), we drove almost 20 000 km with it in the last 1.5 years.
I thought it is time for me to buy a second one, because we are always fighting over this little car, thus we have a hilux too (3l engine...).
So I got one yellow beauty from the market a quite low price, and I could even bargain. So I had my doubts... And since I live in Romania, (I am Hungarian, but the town I live in became part of this country(no more history lesson, I promise) ) I was not surprised that the car wouldn't start after not being used one month. (was waiting for temporary license plates, and I had an appointment to the car registry exam yesterday)
So first things first I recharged the small battery, it had 11.x volts.
Red the codes: P1A15, nothing else. I used a delphi tester with delphi cars, it reads the trouble code and it can also delete them. (one can use wurth wow with this tester, but it reads nonsense codes) (this is the interface if someone is interested: https://www.alibaba.com/product-detail/ ... 36efP1yefd
Last week I managed to buy a lexia interface so I can do whatever a factory interface can do. (I managed to read out the other iOns radio code, I swapped the small batteries)
Yesterday was all about getting to know the software. I is possible to write the cars vin to a newly installed parts ecu so it is kinda cool.
I read the traction battery cell voltages, everything looks ok.
One interesting thing I encountered is the battery percentage is climbing slowly when I start the car:https://photos.app.goo.gl/97ooY4NU9GzSvXmR7
The ev ecu test:https://photos.app.goo.gl/JA7Q4ZCTJkqnBEJv9
I think it is time to jump into disassembling the car. But where should I start?
I will measure the capacitors manually.
Thank you so much for helping me!