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Old 23-12-2010   #1
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why cant i connect laptop to ecu???

just got a cable to connect laptop to my ecu for diagnostics , downloaded the fiatecuscan software an cannot connect to it just get a no responce from ecu message any1 got any idea whats goin on
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Old 23-12-2010   #2
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Re: why cant i connect laptop to ecu???

Have you turned the key to MAR

http://www.fiatecuscan.net/HowToUse.aspx
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Old 23-12-2010   #3
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Re: why cant i connect laptop to ecu???

yer mate i tried turning it bak off aswel an waitin 10 seconds inbetween turning it back on , i been reading about it on that fiatecuscan site an looks like you got to mess about bodging wires round pins on the cable :S looks an sounds stupid to me
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Old 23-12-2010   #4
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Re: why cant i connect laptop to ecu???

No if you read it properly it mentions that on certain ECU's such as airbags you have to modify wiring.

Which engine and what year car do you own?
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Old 23-12-2010   #5
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Re: why cant i connect laptop to ecu???

What cable do you have, both the k-line (VagCom) and the ELM 327 should work unmodified on the mk2/2B Engine ECU but you will need to modify it for airbags and abs etc but its not hard at all
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Old 23-12-2010   #6
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Re: why cant i connect laptop to ecu???

its a 1.9 jtd punto v reg an the cable is VAG COM USB ODB2 DIAGNOSTIC CABLE 409.1 OBD2 II LEADVAG COM USB ODB2 DIAGNOSTIC CABLE 409.1 OBD2 II LEAd
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Old 23-12-2010   #7
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Re: why cant i connect laptop to ecu???

does ur laptop register the fact the cable is connected? have u got the latest drivers for the cable? have u put the latency to the lowest and changed the port to the correct one?
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Old 23-12-2010   #8
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Re: why cant i connect laptop to ecu???

yer i done all that the program just says port ok ,, interface not found,, whats it mean by interface
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Old 23-12-2010   #9
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Re: why cant i connect laptop to ecu???

interface is the communications between the software and hardware. silly question, but is the cable plugged in right? its a pain to get in i found. does ur cable have a light on it that is illuminated when its plugged in?
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Old 23-12-2010   #10
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Re: why cant i connect laptop to ecu???

it dont have any lights unfortunatly im sat in car now so ill try pushing the cable in hard it seems hard to what iv pushed it in already
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Old 23-12-2010   #11
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Re: why cant i connect laptop to ecu???

does the laptop register that its connected? look in device manager and it should show the usb port there.
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Old 23-12-2010   #12
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Re: why cant i connect laptop to ecu???

it was showin yer till i pressed somethin an now cant see the port section on device manager lol so guna nik my misseses laptop
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Old 23-12-2010   #13
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Re: why cant i connect laptop to ecu???

took me a while to connect to mine. update drivers, setting all correct, and a lot of patience. if its all as it should, im not sure why it wont connect. just try playing with the setting on both fiatecuscan and ur device settings.
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Old 23-12-2010   #14
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Re: why cant i connect laptop to ecu???

In my experience it's far better to use an ELM interface I bought a VAG COM one and had exactly the same problem.
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Old 23-12-2010   #15
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Re: why cant i connect laptop to ecu???

that reminded me...im assuming u also changed it to "vag com" in ecuscan?
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