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by kiev
Sat Oct 16, 2021 6:27 pm
Forum: General / Main Owners Forum
Topic: Warranty issue, need help.
Replies: 9
Views: 182

Re: Warranty issue, need help.

... . Today I got a call saying they can't run actual diagnostics because of a technical issue. They are telling me there are two cables that run from battery to charging port which are gone bad which doesn't allow them to run diagnostics on the battery. Mitsubishi will cover the only one of those ...
by kiev
Sat Oct 16, 2021 6:27 am
Forum: Batteries and Battery Management
Topic: Power Delivery Module (PDM) aka the DC-DC Converter/Junction box on Nissan Leaf Gen1 (wiring info)
Replies: 14
Views: 16981

Discrepancy: DC-DC Converter/Junction box on Nissan Leaf Gen1 (wiring info)

i found an error in the POWER SUPPLY, GROUND & CIRCUIT ELEMENTS, aka PG section of the FSM for the High Voltage connector polarity for the Quick Charge harness into the DCDC Junction Box. This may be why Jim H. burned up his first DCDC when doing bench testing (reversed the polarity) mentioned i...
by kiev
Fri Oct 15, 2021 5:52 am
Forum: Batteries and Battery Management
Topic: Power Delivery Module (PDM) aka the DC-DC Converter/Junction box on Nissan Leaf Gen1 (wiring info)
Replies: 14
Views: 16981

DC-DC Converter/Junction box on Nissan Leaf Gen1 (wiring info)

The PWM frequency is 8 Hz, and the duty cycle for 13V (13.5%) and 15V (55%) is shown here from the FSM. But nearly all the reports from diy folks using the DCDC in projects indicate an opposite trend, in that higher duty cycle reduces the output voltage...? Is the FSM in error. https://i.imgur.com/S...
by kiev
Wed Oct 13, 2021 6:54 pm
Forum: Batteries and Battery Management
Topic: Power Delivery Module (PDM) aka the DC-DC Converter/Junction box on Nissan Leaf Gen1 (wiring info)
Replies: 14
Views: 16981

DC/DC Converter/Junction box on Nissan Leaf Gen1 (wiring info)

i opened up a Gen 1 DC/DC Junction box and have some findings to report. It is a dumb and simple box with no CAN buss service--basically 4 big ass Panasonic relays, a Panasonic High Voltage isolation board to measure the voltage during Chademo Quick Charge, a Denso DC/DC converter to charge the 12V ...
by kiev
Sun Oct 10, 2021 7:08 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 804
Views: 531588

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

Bravo! Great work on getting it repaired.

Is that potting compound something that could be easily removed if necessary?
by kiev
Sun Oct 10, 2021 7:03 am
Forum: General Technical Discussions
Topic: how to remove seat belt electrical connection plug
Replies: 3
Views: 292

Re: how to remove seat belt electrical connection plug

Oh that looks like an airbag connector, not the seatbelt...maybe someone else can chime in on this.

Probably want to have the 12V aux battery disconnected when messing with anything airbag related.

Image
by kiev
Sun Oct 10, 2021 4:51 am
Forum: General Technical Discussions
Topic: how to remove seat belt electrical connection plug
Replies: 3
Views: 292

Re: how to remove seat belt electrical connection plug

Almost all connectors have some sort of locking feature, some are quite a puzzle to release

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by kiev
Thu Sep 30, 2021 8:03 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 804
Views: 531588

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

Is the other cap good? Can you get a reading of its value?

What is the approximate size of the device, length width height.

Great news about the diodes.
by kiev
Wed Sep 29, 2021 8:33 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 804
Views: 531588

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

i've used a hot soldering iron (dry tip with no solder) with a fat flat blade tip to heat up small areas of the epoxy. This seems to break it down somewhat to form a powdery layer that can be chipped and scrapped with the blade tip or other metal tools. This will mess up the tip for soldering unless...
by kiev
Tue Sep 28, 2021 5:30 pm
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC)
Replies: 804
Views: 531588

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

The diodes and fets look okay, so maybe just removing the shorted component would allow the system to start again. Of course it's not so easy putting it all back together just for a quick check, but it might be worth it. May be a crazy idea: Just put the bare minimum solder on the waffle joints in c...

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