Hello to all.
I have a problem with my X431. I can't diagnose any car.
When i plug in to car two LEDs are still on :
1. Power - its OK
2. From ECU - not god I think (its the last LED on bottom).
Software starts normal. But when I try to connect any system i get error comunication with ECU message.
I checked in another X431 and that last one LED is off.
I know that problem is with Smartbox but i don't know what could happen?
Any idea???
Yea wright.
When is wrong SN software tell about difference between smartbox SN and soft SN.
I know that Smartbox is down.
But what chip inside recognise signal from car ECU and light that LED.
I changed SN and ty another soft but no resolt.
I changed main cable and still the same.
I changed W77L058A25PL to a new one programed with same SN.
Still no resolt.
Yes its old scanner X431.
I saw main board smartbox on Aliexpres costs 140$.
where is it israel
Hi,
My launch x431 doesnt work properly its original master,when i connect it to the car smartbox success ,checking smarbox success and also enter into the car till read fault code,but then after is show communication error,see whether ign is on etc etc,so what should be the problem i am attaching the picture of smartbox can any one suggest what should be the problem in smartbox,regards-HuzefaCAM00036.jpgCAM00035.jpgCAM00034.jpgCAM00033.jpgCAM00032.jpg
Yep, you connected to a vehicle with power on its K-Line. Could be a VW were the power for the aftermarket radio is taken from the wrong source. The Launch can only fight off power on the K-Line for a short period and then blows the smart box. Sorry mate your unit requires a new smart box.
As far as I know,this white black relay smartbox board is very easy to be in trouble.I presume you will have to consider to send LAUNCH to fix or ask your supplier to do the repair,
Test main cable: 1 in1,2 in 2 ....15 in15.
Test Ziner diode.
Test relay.
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