Break-thru: Reading ACD ECU with EcuFlash
This is what I'm using to run my harness- super simple and cheap. There's two holes coming out of it where you put a power and a ground. Wire the power and ground accordingly to the schema- works like a charm.
http://www.radioshack.com/product/in...ductId=3806057
Matt
I'd assume that 10V is too low. Make sure you have at least 11 or 11.5V. I've had no problems at 11.5V.
Ian's method is a sure-fire way.
Newbie
Joined: Aug 2010
Posts: 50
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From: Sydney
Yea, power supply voltage.....
Ive purchased a 12volt input 12volt output ciggy socket just now and wired it up... 11.9 output so i should be safe to run it from anyones car....
Or use my bench power from a PSU which is 12.1 output...
What happens if u flash it, or read from it and the voltage drops to low ???? what would happen
Ive purchased a 12volt input 12volt output ciggy socket just now and wired it up... 11.9 output so i should be safe to run it from anyones car....
Or use my bench power from a PSU which is 12.1 output...
What happens if u flash it, or read from it and the voltage drops to low ???? what would happen
Yea, power supply voltage.....
Ive purchased a 12volt input 12volt output ciggy socket just now and wired it up... 11.9 output so i should be safe to run it from anyones car....
Or use my bench power from a PSU which is 12.1 output...
What happens if u flash it, or read from it and the voltage drops to low ???? what would happen
Ive purchased a 12volt input 12volt output ciggy socket just now and wired it up... 11.9 output so i should be safe to run it from anyones car....
Or use my bench power from a PSU which is 12.1 output...
What happens if u flash it, or read from it and the voltage drops to low ???? what would happen
In worst case flashing is interrupted if voltage goes too low, happened once for me with my efi ecu. In that time I just connected battery charger and flashed again, worked fine after that but other one might not be so lucky, dont know really what can happen...
nothing bad happens... the flashing will stop, and you will have to start again.
try pulling the power supply out halfway through a reflash
I do it all the time. 11.8V minimum for predictable flashing in my books.
try pulling the power supply out halfway through a reflash
I do it all the time. 11.8V minimum for predictable flashing in my books.
Evolved Member
Joined: Sep 2006
Posts: 800
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From: Newcastle, Australia.
So after 2.5 years of not looking into this, I built a harness yesterday and started playing around with flashing the ACD. Apparently, not mentioned here, there is a difference in the ROM between an 8 and 9 even though the ECU is the same part number? Took me a minute to figure that out but fortunately I had an VIII and IX here so I could pull the ACD ECU out of each and go from there.
The VIII I had is the 401403 and the IX was a 401702. Other than some mention on LancerRegister and Geekmapped it seems this whole subject is still pretty quiet. I cant track the car yet (raining and no events for awhile) but made some improvements to the stock setup in an otherwise stock IX. Been awhile since I pushed one in the rain but it feels more like my car with the 04RS case so that is a definite improvement over stock.
Any other resource information than here anyone wants to share? I did notice that the VIII and IX is virtually identical for all the addresses except the MUT table and then its only minor address changes.
The VIII I had is the 401403 and the IX was a 401702. Other than some mention on LancerRegister and Geekmapped it seems this whole subject is still pretty quiet. I cant track the car yet (raining and no events for awhile) but made some improvements to the stock setup in an otherwise stock IX. Been awhile since I pushed one in the rain but it feels more like my car with the 04RS case so that is a definite improvement over stock.
Any other resource information than here anyone wants to share? I did notice that the VIII and IX is virtually identical for all the addresses except the MUT table and then its only minor address changes.
Apparently, not mentioned here, there is a difference in the ROM between an 8 and 9 even though the ECU is the same part number? Took me a minute to figure that out but fortunately I had an VIII and IX here so I could pull the ACD ECU out of each and go from there.
The VIII I had is the 401403 and the IX was a 401702.
The VIII I had is the 401403 and the IX was a 401702.
I'd love to have a copy of the 401702 rom now I know it exists!
I thought that I had tracked down an Evo 9 rom (401404 - which is available now on evoscan's website), and that I had now gained the benefit of having co-operating ACD and ABS functions, but perhaps not. I haven't really had the chance check out whether the 401404 rom has this feature yet, but new rotors and some DS2500's sitting in front of me should change that soon enough.
Did you find that the 401702 rom did not work in an Evo 8?
I know that in one mitsi manual I read that one difference between the 8 and 9 is that with the 9 they now allow the ACD to still be operational once the ABS has kicked in. I've shared the extract from the manual with a few people and we tended to agree that it sounded like the acd rom must've been different, but that it was also possible that the SRS ECU was reprogrammed for the 9. Someone more informed on what functions the SRS ECU performs could quickly clear this up I bet.
I'd love to have a copy of the 401702 rom now I know it exists!
I thought that I had tracked down an Evo 9 rom (401404 - which is available now on evoscan's website), and that I had now gained the benefit of having co-operating ACD and ABS functions, but perhaps not. I haven't really had the chance check out whether the 401404 rom has this feature yet, but new rotors and some DS2500's sitting in front of me should change that soon enough.
Did you find that the 401702 rom did not work in an Evo 8?
I'd love to have a copy of the 401702 rom now I know it exists!
I thought that I had tracked down an Evo 9 rom (401404 - which is available now on evoscan's website), and that I had now gained the benefit of having co-operating ACD and ABS functions, but perhaps not. I haven't really had the chance check out whether the 401404 rom has this feature yet, but new rotors and some DS2500's sitting in front of me should change that soon enough.
Did you find that the 401702 rom did not work in an Evo 8?
I associated that ROM type with the 401403 and 401404 to crosscheck and make sure the addy's were all the same. PM an email gents and I can send it over.
I couldnt get the 8 ACD ROM to work in the IX's as it would light all 3 ACD lights. As soon as I flashed my stock IX ACD ROM to the ecu and plugged it in it worked golden. I then made all the changes to the IX that I had on the VIII ROM version and took it for a stroll. I will have an VIII here tomorrow to play with and hopefully some dry weather by the end of the week to put the canyon to work
Aaron