Search found 9 matches

Go to advanced search

by Slava
Fri Nov 25, 2022 4:09 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 1008
Views: 732244

Re: Troubleshooting and repair for On-board Charger (OBC)

Hi to everyone, So I got back to research. I made a shunt from a resistance of 1.65 MOhm on a hybrid board - the contactors started working, car goes into READY mode, everything works, but !!! Diagnostics shows that the charge level of the capacitor is now 361 V, with a battery charge of 355 V - tha...
by Slava
Tue Nov 01, 2022 7:20 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 1008
Views: 732244

Re: Troubleshooting and repair for On-board Charger (OBC)

So it seems that the (-) and precharge contactor are being energized, but not the main (+), https://i.imgur.com/Thb7SMg.png i suspect the P1A15 code is thrown due to an issue with the MCU board, likely with the little hybrid board in the bottom plenum control board. Someone made a cludge repair by ...
by Slava
Fri Oct 28, 2022 11:12 pm
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 1008
Views: 732244

Re: Troubleshooting and repair for On-board Charger (OBC)

I checked the signal of the control unit EV-ECU to the main contactors: in connector C-111 I checked pin 105,106,107. 105 and 106 - ok - at start, the battery voltage is applied and then decreases to 0.8 V 107 - there is no signal to the contactor + it's allways 0,8 v any idea why the control unit i...
by Slava
Fri Oct 28, 2022 6:06 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 1008
Views: 732244

Re: Troubleshooting and repair for On-board Charger (OBC)

battery voltage 355V
in the live data, the capacitor voltage rises only to 40V !!!
by Slava
Fri Oct 28, 2022 5:33 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 1008
Views: 732244

Re: Troubleshooting and repair for On-board Charger (OBC)

I continued my research: checked the transistors under the bottom lid - it's ok. I checked Can - the signal is good. https://imgur.com/a/Hnco8cL then I noticed a pattern: when I connect everything - there are three errors and a yellow service lamp. P1B31 - brake fluid pressure sensor fault U1113 - D...
by Slava
Fri Oct 28, 2022 12:24 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 1008
Views: 732244

Re: Troubleshooting and repair for On-board Charger (OBC)

removed the converter, opened the bottom cover. no visible damage. fuses are all ok. direct wire to 12v battery is ok. MCU fuse that located under smal lid on invertor - ok removed the converter, opened the bottom cover. no visible damage. fuses are all intact. direct wire to 12v battery is ok. any ...
by Slava
Thu Oct 27, 2022 9:30 pm
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 1008
Views: 732244

Re: Troubleshooting and repair for On-board Charger (OBC)

Hello everyone from sunny Finland :)) I'm asking for help because I'm stuck. Citroen c-zero does not go into ready mode, the 12 V battery charging lamp and the low brake fluid level lamp are on. no 12v battery charger. the OBC unit does not communicate with the diagnostic equipment. checked the OBC...
by Slava
Thu Oct 27, 2022 9:22 pm
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 1008
Views: 732244

Re: Troubleshooting and repair for On-board Charger (OBC)

thanks for the response. the car came to me with a completely empty 12v battery. I connected another one along with charging to do diagnostics at the first error reading, the ECM_EV block issued the following codes: P1B31 - brake fluid pressure sensor fault U1113 - DTC to be ignored P1A15 - Capasito...
by Slava
Thu Oct 27, 2022 5:17 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 1008
Views: 732244

Re: Troubleshooting and repair for On-board Charger (OBC)

Hello everyone from sunny Finland :)) I'm asking for help because I'm stuck. Citroen c-zero does not go into ready mode, the 12 V battery charging lamp and the low brake fluid level lamp are on. no 12v battery charger. the OBC unit does not communicate with the diagnostic equipment. checked the OBC ...

Go to advanced search