Go to advanced search

by kiev
Sat Aug 01, 2020 6:37 pm
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC), DC-DC Converter
Replies: 538
Views: 171721

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

The 16V supply gets routed thru the ribbon cable down to the bottom board and gets chopped thru Transformer T302 to create secondary power supplies for the PFC and current sense. The current sense supply is underneath and can be seen without removing the waffle plate, regulator is ic317. The PFC sup...
by kiev
Sat Aug 01, 2020 9:18 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC), DC-DC Converter
Replies: 538
Views: 171721

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

i suspect the power supplies on the top board and would recommend to look there first. Here is discussion of the supplies, http://myimiev.com/forum/viewtopic.php?f=23&t=4079&start=70#p36876 and see page 9 for picture and skylogger's measurements. There is an always hot 12V coming into the OB...
by kiev
Sat Aug 01, 2020 6:52 am
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC), DC-DC Converter
Replies: 538
Views: 171721

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

That's good news on the waffle plate. The boards look okay from the great pictures. This is not the usual failure mode that we see of the snubber caps and fuse, and is probably the first time for these symptoms. The current sense circuit was traced out, and there are some notes about the low voltage...
by kiev
Fri Jul 31, 2020 7:58 pm
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC), DC-DC Converter
Replies: 538
Views: 171721

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

D301 is the freewheeling diode for the coil on the AC input relay inside the potted region. It should read about 60 Ohms and will cause the diode drop to read like you did. F701 is a fuse on the top board, likely okay but doesn't hurt to check. The diodes i am worried about are inside the waffle pla...
by kiev
Fri Jul 31, 2020 6:04 pm
Forum: Batteries and Battery Management
Topic: Troubleshooting and repair for On-board Charger (OBC), DC-DC Converter
Replies: 538
Views: 171721

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

Howdy zeta, If you can somehow share the pictures then we can look to see if there is something abnormal. Your OBC codes indicate 2 different problems on opposite sides of the board. OBC 39 is Power factor correction (PFC) circuit output voltage abnormal; the PFC boost is done after the rectificatio...
by kiev
Tue Jul 28, 2020 5:32 pm
Forum: General / Main Owners Forum
Topic: rarely the car doesn't go to READY mode -- what's up?
Replies: 7
Views: 493

Re: rarely the car doesn't go to READY mode -- what's up?

... Now, it only does the "12v battery stays lit and won't go to ready" if I turn off the car and immediately try to crank it again. ... So at this point, I'm wondering, is it resolved? Maybe it's normal to not go to ready if you switch off and back on immediately due to some battery stuf...
by kiev
Mon Jul 27, 2020 6:09 pm
Forum: General / Main Owners Forum
Topic: rarely the car doesn't go to READY mode -- what's up?
Replies: 7
Views: 493

Re: rarely the car doesn't go to READY mode -- what's up?

Did you charge the "new" 12V aux battery before installation? Or can you verify that the voltage goes up to 14.4 when the key is turned to start and car goes to READY? If you have the red battery lit then there is an issue that has not been resolved. The car will not start or run with a lo...
by kiev
Wed Jul 22, 2020 5:19 pm
Forum: General / Main Owners Forum
Topic: rarely the car doesn't go to READY mode -- what's up?
Replies: 7
Views: 493

Re: rarely the car doesn't go to READY mode -- what's up?

i suspect that the 12V aux battery is worn, weak or too old to hold a charge and start the car anymore. Better to get it checked and be safe than sorry and stranded on the side of the road. Especially if it is the OEM battery ==> 6 year old or older, time for some preventative maintenance.
by kiev
Mon Jul 13, 2020 9:23 am
Forum: Modifications & Accessories
Topic: Replace Low Beam (H11) Head Light Bulbs
Replies: 16
Views: 5056

Re: Replace Low Beam (H11) Head Light Bulbs

jray3 wrote:... Only 14 Watts versus 55 apiece for halogen, so that's a continuous daytime load reduction of 82 Watts, or about one mile of added range per driving hour... :roll:

LOL, who ever drives their car for more than an hour at one time..?
by kiev
Thu Jul 02, 2020 12:12 pm
Forum: General Technical Discussions
Topic: Gear shifter contacts
Replies: 7
Views: 663

Re: Gear shifter contacts

Did your cable need lube or was it damaged?

http://mmc-manuals.ru/manuals/i-miev/on ... 000ENG.HTM

Go to advanced search