Drive by Wire - Jackaroo
Submitted: Sunday, Feb 11, 2007 at 13:47
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dseaman
I’ve recently bought a 2000 3.0L TD Jackaroo. This has drive-by-wire system coupled up to the ECM. I was just wondering if anyone has had any problems with this system, or, is there any way to over-ride this system if one had a
breakdown with either the ECM or the module on the accelerator pedal, and you were in the middle of the outback, with nothing around for
miles???
Thanks,
David.
Reply By: Member - Jeff M (WA) - Sunday, Feb 11, 2007 at 14:30
Sunday, Feb 11, 2007 at 14:30
I'd dare say you'd have a hell of a lot less chance of the computer buggering up than a thorttle cable snapping. Besides if your ECU was to bugger up, moving the butterfly in the throttle body would be the least of your problems! Moving the pistons up and down in the engine would be next to impossible! LOL
Normally if these things are to go bad, GENERALLY they would fall into a fail safe mode which would at least get you going, albeit a little slowly.
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Reply By: Mr Fawlty - Sunday, Feb 11, 2007 at 16:45
Sunday, Feb 11, 2007 at 16:45
I have a 2002 TD Jack, only time it failed to proceed was because the cretin who serviced it at my very competant Holden dealer did not correctly plug one of the leads back into the computer... Got 300 metres down the road and it just came to a stop, right in the middle of a roundabout.
I also watched in total amazement when the aformentioned "mechanic" from the dealership was looking for the accelerator cable to give the engine a rev...
THIS IS IMPORTANT THOUGH: there is available software that can be run on a laptop via a lead that connects to the serial port and the diagnostics plug on the Jack. I can't find it anywhere but if I could I recon it would be worth it's weight in gold. I've seen a guy use it at
Mossman FNQ and asked him about it but he said he knew nothing about it apart from the fact that it let him diagnose faults and to a limited extent "reprogramme" the electronics in Isuzu Diesels. Maybe an Isuzu item rather than a GMH item...
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Follow Up By: Member - Jeff M (WA) - Monday, Feb 12, 2007 at 10:30
Monday, Feb 12, 2007 at 10:30
I have a print out of the error codes for my ECU in the tool box, a simple paper clip put on the diagnostics lead of most ECU operated cars will flash the engine light on the dash to give you error codes that will tell you what is wrong.
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Reply By: MEMBER - Darian (SA) - Sunday, Feb 11, 2007 at 20:07
Sunday, Feb 11, 2007 at 20:07
7 years and 137k to date in my version of the same chariot and no issues with driving by wire - lots of modern cars are using this type of system now as I understand it - risky ? Yep - I fully expect to have to pay $$$ if it fails outback - but its just another risk to take in choosing vehicles - if you want a really simplistic, uncomplicated, easy to fix, yet comfortable and efficient vehicle, let me know when you find it (in my price range :-0) ....... my next vehicle will be just as complicated, but I'll stick to mainstream brand and model - that way, the service manager at the end of the tow should at least have some familiarity with the thing (but maybe not :-(..........
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Follow Up By: Mike Harding - Sunday, Feb 11, 2007 at 20:20
Sunday, Feb 11, 2007 at 20:20
>but its just another risk to take in choosing vehicles
Not really. The problem with electronics is that they are un-fixable, usually, in the bush. Most mechanical things can be jerry rigged to get you out of trouble somehow but if the output MOSFET on your engine control micro fails then you're stuffed - full stop!
Mike Harding
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