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by kiev
Tue Jun 09, 2020 5:37 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC), DC-DC Converter
Replies: 514
Views: 161258

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

Like Coulomb stated there is likely a much bigger issue. The capacitor was just a symptom of a failure, not the cause. The 5V power supply is suspect and many chips are powered by that buss. There is also a 16V supply and the 12V input voltage lines. There is a fuse on the board that hopefully blew ...
by kiev
Sun Jun 07, 2020 8:52 pm
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC), DC-DC Converter
Replies: 514
Views: 161258

Voltage Monitoring Chip

IC509 is an MB3793 Power Voltage Monitoring ic from Fujitsu. "A reset signal is output when the power is cut or falls abruptly. When the power recovers normally after resetting, a power-on reset signal is output to microprocessor units (MPUs). An internal watchdog timer with two inputs for syst...
by kiev
Tue Jun 02, 2020 8:49 am
Forum: Batteries and Battery Management
Topic: No READY. P1A15 error. Condenser charge timeout.
Replies: 59
Views: 24306

Re: No READY. P1A15 error. Condenser charge timeout.

Where is the chip location that holds the VIN info in the MCU / invertor ? It is U6 located nearby to the ISA board. See page 2 of this thread for a picture of the main board in the bottom plenum. Did you get my PM from last year, it had my home email address if you have questions or need help. Bas...
by kiev
Thu May 28, 2020 10:14 am
Forum: Batteries and Battery Management
Topic: not charging my iON, cell or CMU or BMU problems
Replies: 86
Views: 23189

Re: not charging my iON, cell or CMU or BMU problems

It wasn't clear to me that there was a defective LTC chip, maybe so, but there were 2 very low cells, #38 and #42. So after swapping out a CMU05 board, the low cell #38 is not reading low anymore? Was the cell voltage actually measured with a voltmeter to verify it's actual reading before and after ...
by kiev
Tue May 26, 2020 11:33 am
Forum: General Technical Discussions
Topic: Mitsubishi/Citroen OBC trouble
Replies: 14
Views: 2176

Re: Mitsubishi/Citroen OBC trouble

Hi again Kiev. Now I have replaced the MCU Fuse and soldered on a replacement for the snubber cap that was cracked. Result: The yellow fault symbol in the dashboard is gone, but i still have a fault code 0006 on my diagnose tool i don't know where or how you are reading these codes, but OBC code 6 ...
by kiev
Tue May 26, 2020 11:12 am
Forum: General Technical Discussions
Topic: Mitsubishi/Citroen OBC trouble
Replies: 14
Views: 2176

Re: Mitsubishi/Citroen OBC trouble

[edit: Is it wired back up correctly--all the faston tabs back into the correct location? it is easy to get them on the wrong position.] Were you able to check and verify that the semiconductors in the waffle plate were okay? i was waiting to hear back. If those are failed then the plate is bad and ...
by kiev
Sat May 23, 2020 7:22 am
Forum: General Technical Discussions
Topic: Turtle when Braking
Replies: 10
Views: 792

Re: Turtle when Braking

That's great to be able to chargge and the cell's are fairly even in voltage. It may be that the OBC 39 and P1A44 are somehow related to something that happened in the past, and for some reason don't want to clear. Just make sure the open ends for the A/C and Heater wires are wrapped with tape and n...
by kiev
Sat May 23, 2020 5:07 am
Forum: General Technical Discussions
Topic: Turtle when Braking
Replies: 10
Views: 792

Re: Turtle when Braking

That is only 20 mV difference, which is not bad for an older pack. Did it chargge and does it still do the Turtle?
by kiev
Fri May 22, 2020 1:33 pm
Forum: General Technical Discussions
Topic: Turtle when Braking
Replies: 10
Views: 792

Re: Turtle when Braking

With OBC code 39, the car is not likely to charge. You should remove the cover on the OBC and inspect for capacitor damage; see the OBC troubleshooting thread for pictures and a few details on what is inside that box. The P1A44 code does not sound good either. Are all the cells reading about the sam...

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