titoun
So far I've checked PIC and its missing VCC so it looks like a HW problem
titoun
So far I've checked PIC and its missing VCC so it looks like a HW problem
I have my Lexia with 2 USB cable. One long and short.
The long never work, when plug, led bright but windows show device not detected.
I use the short USB cable work until now and last days need moved when plugged to make working device.
So i take out the DB15 connector, and remake all solder point with the same cable ( need cut 15cm shorter)
Now it work very well the older long cable. Here is diagram pinout USB to DB15.
LEXIA USB Cable.jpg
Col19 (24th January, 2020), krevetbre (5th April, 2019), mek007 (10th May, 2020), mexanico1971 (25th March, 2020), okm (6th February, 2018), slawcio26 (28th June, 2016), titoun (29th March, 2016), violator11 (7th June, 2016)
Hi,
Vdd (Vcc) or Vpp on PIC 16F ?
If you are sure that it's Vcc, first check 5Vdc on relay pcb : output of LM2674 M 5.0...
Regards
Last edited by titoun; 31st March, 2016 at 01:34 PM.
Having trouble connecting to Peugeot 307 2006, Couldn't get Vin or connect to BSI also didn't hear relay click
Very few ecus found.
Fault was one of the relays open circuit, Relays should read about 140 ohms
I checked them all and only found one bad, Not sure if relay can or van
Regards
Andy
Last edited by andye26; 31st March, 2016 at 08:47 PM.
Hi,
Check if there are connections between this relay (NAIS) and MCP2551 component right next ?
Regards
Col19 (24th January, 2020)
I just measured the coil on each relay
The coil is the 2 pins indicated , Check these pins on all relays
The NAIS relay if the one I replaced which is why it is a different size (only type I had)
Measure the same 2 pins on all 12 relays and check they are all about 140ohms
The one I replaced was open circuit
Andy
Hello,
My lexia3 : if connected to my PC, the green LED don't work. Before it worked well.
Please give a solution..
thanks
If Lexia work partial, rework all solder points. Use Hot air gun + solder flux.
At the beginning worked for 3 seconds and goes out.
Then open and close and began to work well.
Now lexia completely stop.
I do not hear and distinctive sound when you turn on USB - nothing is connected to the PC.
Forgive me for my english.
Hi,
Try to change RAM SAMSUNG K6X and if always don't work, reflash microprocessor MB90F546GS (with nlc firmware or hardware method).
Regards
Hi, I have problems with my new interface. I can't connect to Engine and ESP in any car (406 coupe 2.2HDI and 307 2.0HDI). Other systems seems to be ok, so I don't know if my interface have problems with CAN maybe?
Wich components should I check??
Thanks!
Hi,
Try this :
http://www.digital-kaos.co.uk/forums...tion-problem-!
And if your interface always don't work, check welds of relays, MCP2551, TDK common choke on Relays PCB.
After check welds on HC04, optocouplers 0639 and HC 08 on Microprocessor PCB.
For my part, i will replace all HCPL 0639 optocouplers be HCPL 063N.
Regards
Last edited by titoun; 10th May, 2016 at 09:23 AM.
Thanks titoun.
My interface doesn't have the CAN resistor, so I'll try your solution.
Hello again.
I changed my RAM chip but the problem remains.
Computer does not respond inclusion of pro usb and LED does not light up.
It can be damaged usb chip?
Bookmarks