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by kiev
Tue Jun 28, 2022 5:47 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 921
Views: 694778

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

Howdy Karel, Welcome to the forum and thank you for sharing your OBC details. One thing of concern is that your 12V starting battery is really low at 12.4. Even though the DCDC Converter comes ON when in READY or the OBC is charging, the low battery really needs attention and maintenance, and a full...
by kiev
Sun Jun 26, 2022 4:30 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 921
Views: 694778

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

Does your car Start and go to READY mode? What is the open circuit (resting) voltage of your 12V battery? What is the history of this car? Has it been in a wreck or non-operational for an extended time? ... ... One friend with diagnosis was here and I have more errors: B1476 B1477 P1A12 U111D U1111...
by kiev
Sat Jun 25, 2022 11:15 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 921
Views: 694778

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

The relay is old and may be weak or have already been damaged, frosted over contacts, etc and this may have caused the initial fault of the 4.7 ceramic resistor. Any diode of about the same footprint would likely work. The circuit should work even without the diode, but then you are for sure asking ...
by kiev
Fri Jun 24, 2022 2:01 pm
Forum: Other Electric Vehicles
Topic: Ford Mach-e teardown video
Replies: 0
Views: 36

Ford Mach-e teardown video

Don't think videos will play here, but this was posted on the diy electric car site: https://www.diyelectriccar.com/threads/ ... st-1094482

No thanks for me, i don't care for the overly complicated design and assembly of the ford versus the miev.
by kiev
Fri Jun 24, 2022 12:30 pm
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 921
Views: 694778

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

translated quotes from joker Hello, I'm slowly removing the compound from the board, some data appeared on the elements and On one of the details on the favela board. That is beautiful--Great work to dissolve the epoxy and reveal the part number, IR part number GS30B60K. It is a 30A 600V n-channel I...
by kiev
Fri Jun 24, 2022 6:39 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 921
Views: 694778

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

Does your car Start and go to READY mode? What is the open circuit (resting) voltage of your 12V battery? What is the history of this car? Has it been in a wreck or non-operational for an extended time? The DTC codes for the CAN buss indicate U1111 missing ETACS-ECU signal (this is a relay/fuse box ...
by kiev
Thu Jun 23, 2022 5:14 pm
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 921
Views: 694778

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

i'm not sure removing the HV cables and trying to charge would be a good idea. i could never recommend someone to try that. What would it prove, how would it help determine the problem? The OBC won't turn ON without the HV battery connected. The control board monitors the voltage and current, and i ...
by kiev
Thu Jun 23, 2022 2:45 pm
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 921
Views: 694778

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

Hi frends. I have simmilar problem with charging with OBC but I checked everything desribed.. OBD2 says U1111 and U1116 I checked all plates of charger and everything looks good. I tested connect AC and relays at front swich on cooling and everyting as normal.. 1. Relay at front switch 2. Display s...
by kiev
Thu Jun 23, 2022 2:35 pm
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 921
Views: 694778

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

... I reversed the lines to test the relay and then the diode smoked a little bit and became hot. Oh i'm sorry to hear, that's not good. i wish that you would have mentioned this before, and then i would have recommended to replace the diode. Now i suspect that both the diode and the relay are dama...
by kiev
Wed Jun 22, 2022 8:00 pm
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 921
Views: 694778

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

Unfortunately we don't know the part number for the transistors in the epoxy; the few that have been uncovered were found to have been etched to remove the marking. But if you can expose the part down to the green board then we could probably find a replacement part that fits the solder pattern.

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