Reply With Quoteunsolder it but remember the position to solder it proper after read .
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4th October, 2012, 06:51 AM #1Top Poster
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Fiat/Alfa - problem reading 93c46 in immobox
I'm trying to read the 93c46 in the yellow code1 immobox (60622718) without unsoldering it, but I only get rubbish.
Is it possible to read it in circuit, or do I have to unsolder it?
/RedTop
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4th October, 2012, 12:11 PM #2DK Veteran
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4th October, 2012, 12:39 PM #3DK Veteran
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u give 5V+ to immo like that ... and u made him to work ... unsolder it !
4f 54 54 4f 52 45 20 45 4c 45 43 54 52 4f 4e 49
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4th October, 2012, 01:49 PM #4Top Poster
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If I lift the Vcc pin, will that be enough?
Originally Posted by DottoreBL
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6th October, 2012, 07:35 PM #5Top Poster
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Hi, Originally Posted by redtop
read and write in circuit, hot playing !
That?s the best way and works perfectly, so you don?t get trash !
Pinout for connector A ( 8pins)
3--------2--1
8--7--6--5--4
pin1 N.C.
pin2 Codelamp
pin3 +12Volt
pin4 Ground
pin5 Diagnostic K-Line ( Diesel )
Pin6 serial line to ecu ( Immo-request )
Pin7 external relais
Pin8 ignition +12Volt
You need pin3 pin4 and pin8 to connect on bench.
columbo25
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The Following User Says Thank You to columbo25 For This Useful Post:
jodge (24th June, 2022)
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8th October, 2012, 10:16 AM #6Top Poster
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Great info! Thank you! Originally Posted by columbo25
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instakeys (16th November, 2015)
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14th November, 2015, 03:39 PM #7Newbie
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connect on bench
hi been trying to sort my code and red key for a few months. looking at a lot of post. Originally Posted by redtop
Great info! Thank you!
I am new to this ... but getting addicted to Fiat coupe and want it 100% right.
research tells me that i have to un solder the eprom then use a eprom programmer to dump the file untill i came across this topic that says it can be read in situ.
can you explain "connect to bench" with regard the the pins 60622718 what is the bench ?
regards
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