eas cable

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gavbriggs

Well-Known Member
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5,861
Location
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would it be bad news to keep the eas cable perminantly connected??

it will eventually be perminently connected to the car pc but for now i wanted to connect it to the wires at the back of the obd plug (soldered) and leave it in the glove box.

(yep, ive found my old soldering iron out and been ferkin about!:D:D:D:D:D:D)

if it works out then it will be a bonus cos i can reset eas with the onboard car pc(when installed) and wont have to feck about connecting leads etc!
 
gavbriggs said:
would it be bad news to keep the eas cable perminantly connected??

it will eventually be perminently connected to the car pc but for now i wanted to connect it to the wires at the back of the obd plug (soldered) and leave it in the glove box.

(yep, ive found my old soldering iron out and been ferkin about!:D:D:D:D:D:D)

if it works out then it will be a bonus cos i can reset eas with the onboard car pc(when installed) and wont have to feck about connecting leads etc!
Click to expand...

I don't see why you can't do that, you can just disable the comms port in the PC when you are not using it. There will be be a very small additional load on the EAS power supply from the BECM for the RS232 drivers but I would not think that would be a problem. Personally I would not solder to the back of the connector, I would still plug in in the normal way as the connector is well out of harms way and the connectors are only £0.99 from Hong Kong plus postage of £5, then you could always unplug if the need arose:D:D:D
 
the idea is to leave it connected at the obd end, i wanted it soldered to the back so i can also connect to the plug as/when needed but keep the eas stuff in the glove box which isnt used. i have managed to get good access to the obd plug rear side so working on it wont be a problem!

what amount of load will it place, it wont cause any trouble will it?
 
Thinking along the general lines of a car pc, Gav, you could potentially use an older, cheap notebook in this way with the EAS cable permanently fitted, but I'd rather not solder the wires in like Datatek says, you could hide the wiring and leave the plug plugged in. I was thinking of wiring up an older notebook via a suitably hidden inverter - I have constructed a casing with extra fans in which to install the notebook as many run a bit hot. Then run the video cable to a roof or dash installed screen to use the PC. The screen could be connected to a multi-VGA type switch so you could use other gadgets with it as well. I've got a USB broadband dongle and bluetooth dongle organised as well, but this can limit the age of the laptop one can use as some older ones will struggle to run XP or Vista which have native drivers for these peripherals.:)

Car PCs are great but they are soooo pricey for what they are and I think I need a Faultmate before I spend that kind of money (if the RR ever allows me the pleasure of saving enough for one between its many serious and often expensive demands for other attention!!!):D
 
i'm basically putting the car pc together from an old laptop i have lying around that is running a stripped down version of xp. its costing very little to build, just the screen to aquire and a power swith for wake on lan loopback device and its all set!
 
My EAS cable is always plugged in to the OBD socket and hidden under glovebox.....i've noticed as soon as i plug in the lappy the slow 35mph message shows along with the usually expensive 3 beeps so you may not be able to leave it permantly connected.
Just my 2p worth. :)
 
if you read the rsw site's instructions and on the reset software screens the message and beeps is normal behaviour and its just the ecu cycling on connection!!

with that in mind, leaving it permanently hooked up to the car pc will probably cause more hassle than enough!

i have decided i will put an accessible usb port somewhere so i can connect a fly lead without too much messing around! i wanted to hide as much wiring as possible and maybe i'll put in a dedicated eas rs232 socket near the obd connector! just to put the usb to rs232 into! and also one beside it for the lpg rs232 connection!

then again its gonna look like an old fashioned telephone exchange!!
 
gavbriggs said:
the idea is to leave it connected at the obd end, i wanted it soldered to the back so i can also connect to the plug as/when needed but keep the eas stuff in the glove box which isnt used. i have managed to get good access to the obd plug rear side so working on it wont be a problem!

what amount of load will it place, it wont cause any trouble will it?
Click to expand...

I don't think the load will cause a problem, there is none unless the PC is connected, but you will need to disable the port if the PC is permanently connected to stop the P38 ECU cycling. Your RS232/USB adaptor is a better idea:D:D:D
 
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i like to do it the hard way!!! i'd also like to put one in for reading codes, i'm sure i have read that you can read but not clear codes with some cheapo software i dont want to pay for a faultmate yet!
 
hi gav i have a code reader its a sealey vs8700 it reads the codes but wont clear them mine was cheep stole it out of my sons tool box its funny watching him look for it says he cant remember last time he used it i can j
 
gavbriggs said:
i like to do it the hard way!!! i'd also like to put one in for reading codes, i'm sure i have read that you can read but not clear codes with some cheapo software i dont want to pay for a faultmate yet!
Click to expand...

Gav, I have just checked, you will not be able to leave a cable connected if it has a USB to serial adaptor on the end. The BECM/EAS CPU detects the adaptor as if it is the computer and sticks with the "Slow 35mph" message.
I know this because i have just had to sort a duff height sensor so I tried leaving the cable in situe., you can leave a simple cable but nothing else.
Hope this helps.:D:D:D
 
gavbriggs said:
so the ecu will send power to the r323 adaptor? i reckon i'll just puth the r323 plug in the flap at the side of the other plug!
Click to expand...

Not exactly power from the ecu, but the ecu recognizes that there is something connected on the signal lines, probably by a change of state from a logic hi to a logic low on the input line caused by the adaptor loading the line.
 
Datatek said:
Not exactly power from the ecu, but the ecu recognizes that there is something connected on the signal lines, probably by a change of state from a logic hi to a logic low on the input line caused by the adaptor loading the line.
Click to expand...

yeah i knew that:doh::doh::doh::doh::D:D:D:D:D didnt really, well the plug is going in this morning! see what happens, if it wakes up on the adaptor bieng plugged in then i'll know!

j the range said:
hi gav i have a code reader its a sealey vs8700 it reads the codes but wont clear them mine was cheep stole it out of my sons tool box its funny watching him look for it says he cant remember last time he used it i can j
Click to expand...

wait till he buys a new one and nick that and produce the old one to give him back!!!:eek::eek::eek::eek::eek: it'd be handy to have the codes even if it doesnt clear them!
 
hi gav told him to buy a better one one that clears faults cant say what he said to rude yes having codes is handy i go on a site that tells you what problems are
 
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