2004 Grand Vitara poss to immo off?

[quinnd]

33920-52J5. ECU sent into me, looks to have immo matching data in 93C66, is it possible to do immo off and disconnect immo box on this model?

[quinnd]

Can someone match key, immo, and ecu I have the two dumps and key data
ID60
P1: 76
P2:00
P3: 152F7E 16
P4: xxxxxxxxxx

Immo dump attached here 93CS66A Tokai Rika 33970-50J00 626408-000

Thankyou! I can see some key info but I am not familiar with the Suzuki layout

[quinnd]

You can see matching data in line 40, 50 and 60 of immo
and also in line 70 of ecu. The data is similar but is it wrong?
Wheres Bram or Keygargoil when you really need them :)

[radeon]

Did you try write to ECU blank (FFFF...) dump? May be in this case self matching possible.

[quinnd]

Thanks, I have done that with a Honda before but does it work in other cases also? I dont have the car so I need to send the ecu back to customer for them to try

[quinnd]

Can this job be done with the tech 2? Or do I need pin code? Maybe someone can supply the PIN from dump of immo or ecu?

[radeon]

Connect both unit on-table and check. But immo coil and transponer required.

After 'ign ON' wait at least 5 minutes, ign off and do read eeproms and compare it. If synchronization will OK you look it (I hope). At least we got more info.

As I understand, you have not diagnostic for this car? Do you try by OBD-2 protocol with any scanner to read DTC pertaining to immo operation?

[quinnd]

The other garage tried comms with G Scan but no good. I have Tech2, but have only tried it on the bench, still could not get comms through pin 7? I think I was using of OBD2. The only diagram I have is from Alldata, but is USA version I guess and doesnt show immo for the 2004 year. The chip in immo which includes read coil was 93LC66. Can you replace ok with 93C66 ok?

[Meat-Head]

cool, use the stalk function - pop to my profile and look at my visitor messages there is one - not that far away - with a link to a thread where it's more than Smarties that have the answer. Hover mouse look at bottom left of screen see what it says untill you hit the jackpot.

funky photo

[quinnd]

Is that the one where he worked out the immo sync and posted up three dump images? I saw that the other day, but his is an earlier model with different chips etc. bugger aye. Wheres Bram380 hiding? his PM box is overflowing

[quinnd]

If you look at the sync data ( or what appears to be) the data is there but back to front and mixed up a bit. This could all be made better if someone could say for sure if Tech2 could sort it out and if I need a passcode from dump of immo or something. I can then drive to the site and sort this mongrel out

[Meat-Head]

oh ok the word your looking for is byte swap

your are expecting say ab ef 7f 8a
but the dump is ef ab 8a 7f

not my department

yes that is the thread go stalk member squirrlbandy he had one of these

[quinnd]

No its more eg. AB CD EF GH
GH EF CD AB
But then not quite
If they are the same eprom apart from one being LC, should the info match exactly? like the whole line?? Im f%^ked

[Meat-Head]

Ok now in bed hiding under the covers

What about TRYING to leech dumps out that other thread?

What about junk yard ecu copy dump sell on ebay when done

[Meat-Head]

Hate iphone. Try stalking mrmber vanos banton. Preferbly no password off his uploads. Helps other people quicker

[quinnd]

Thanks Meat. Junk yard wants $495 for a used ecu. Ripoff buggers here.
Get some sleep, yourv got a big day tomorrow

[Meat-Head]

Thanks Meat. Junk yard wants $495 for a used ecu. Ripoff buggers here.
Get some sleep, yourv got a big day tomorrow


off topic:-

your fault i was off line for nearly 12 hours!

ON TOPIC:-

could ronaaon ship you one if he has plently

remember DK rules forbid open trading in the forums. :sleep:

[quinnd]

If you want something checked properly, do it yourself! Travelled to vehicle at other garage today, took tech2, SBB, and cloned key just in case. No comms at all with PCM. No check eng light and no O/D light. At start of job first thing I asked "have you checked power & grounds" .
Left them with diagrams and will hear tomorrow I guess. No data modified in ecu at this stage. Could be a bad relay but noone knows what originally happened when it died:dontknow::dontknow::dontknow:

[quinnd]

So I hear back from garage after supplying them with diagrams (do you charge for supplying info?) no power to ecu from main relay- main relay stuffed! Got power now, still no check light. Received ecu back at shop, after looking with go-go-gadget eye, I see smoke has escaped from small transistor near what is possibly the 5V regulator. Powered up on bench, only 2.5V to main MCU, 5 volt rail measures 6.1V and no activity from crystal, ECU condemned! Bugger. Maybe if I get a second hand one, the dump from eprom would still be legible

[Meat-Head]

Sounds like relay gone and justy22 was nearby when the battery went flat

[quinnd]

On the hunt for an ecu now.... why all these vehicles end up at other garages I don't know

[Meat-Head]

.... why all these vehicles end up at other garages I don't know


THATS BECAUSE you then don't get the blame for blown ecu :eek:

[quinnd]

Got a 33920-52J5 lurking out back?

[quinnd]

Can someone tell me if an earlier engine ecu will be compatible with this 2004 car?
Original number is 33920-52J5 auto trans, 2.5L V6
Looks like this ecu is rare as hen's teeth, only one second hand in the whole country and they want big $$

[quinnd]

Attached ecu pic for anyone interested
Also label any other known component functions :)

[Meat-Head]

NOT ABLE TO OPEN

[quinnd]

Sorry, try this

[Meat-Head]

no sorry, just tried STALKING to no availe.

*THINK* member Melcool - wounder if he hangs around INFERIOR forums now?

THINK he had a thread where he removed eeprom out of zexel ecu and hi-ho silver away.

[quinnd]

no sorry, just tried STALKING to no availe.

*THINK* member Melcool - wounder if he hangs around INFERIOR forums now?

THINK he had a thread where he removed eeprom out of zexel ecu and hi-ho silver away.

Yeah have read that a few times with the earlier Vitaras, mine is a lovely Hitachi unit

[Meat-Head]

Oh ebay or parking lot then

Can you get set from emerica

Is ecu fit anything else?

[quinnd]

Got them down to $450, at the end of the day it's not my money is it!!!
So will swap out eprom for a freshly programmed new one, with data from original ecu. Hopefully we will get RrrrR RrrrR RrrR Rrmmmmmm

[Meat-Head]

For that you want the car

Wait 2 months. Call scrapyard you have that car age engine etc etc
Got arse ended insuranse said you to dispose, how much will they give you, you can deliver!

Hate paying tax on used parts! For that you want the loom and engine. Ecu on its own is 'useless' anyway!

[quinnd]

I asked the other garage to put in an offer to the owner from me if they wernt keen on fixing it. Car is only a half-hour drive from our shop so will drive over and check the coils while im at it. Something must have shat ecu and main relay

[Meat-Head]

I asked the other garage to put in an offer to the owner from me if they wernt keen on fixing it. Car is only a half-hour drive from our shop so will drive over and check the coils while im at it. Something must have shat ecu and main relay


ask more questions but at M-H-m we tend to find 99/100 non starts ALWAYS come with a flat battery, crank it to death, then everybody in the street cranks it a bit more, then AA crank it another 10 mins, then it comes to M-H-M.

Last one, DOA, i just put charger on, used Power Probe III.com to fire the starter - to 'expell excess hydrocarbons in the combustion chamber area" (de flood) - turned the key fired up! Battery had spiked ECU.

[quinnd]

Rrrr Rrrr Rmmmmmmmmmmm. Sweet.
Sent out new ecu with reprogrammed eprom. So for anyone in same situation, the two dumps plus key info at the start of this thread is all matching! Or if you would like to pinch this car....
Case closed. :beer:

[Meat-Head]

So do we assume relay went bad battery flat jumped and fried

[quinnd]

Unfortunately I cannot say for sure, but it's hard to say what went wrong first. The ECU had very slight water damage, which was poorly repaired resulting in no way for the eng check light to operate (not that this would stop it from starting) But looked as though a resistor may have overheated and been replaced also. Now noone can tell me if it actually ran after that was done. Main relay was a bit of a mystery that only scoobydoo could solve. Im just glad the eprom data was still intact. Both eproms read exactly the same with the exception of immo sync data.

[quinnd]

Ahhh it's back... well not in our workshop, back at the other place. No start- sometimes. Leave it for a while, it will start. ECU code "No signal received from immobiliser unit"
Really? an intermittant signal? should be the same all the time? Or is this more likely to be a key error?

[quinnd]

Got the ecu and icm back, reprogrammed with original data. Sent back to garage with a note to ring me asap. So he turns the key on and check light stays lit, ok cool key has been recognised. So he starts the engine, just as engine starts, it cuts out (but it did actually start). Now eng light flashing! So we tow this POS back to our shop, after they have been fiddling. Now no check light or o/d lights. Main relay not turning on, transistor in ecu blown for maiin relay drive. Replaced tranny now all working. They must have a bad main relay or some dodgy aftermarket wiring attached to main relay circuit drawing too much current. Will sort that out and then program stupid modules AGAIN. The things I have to put up with!

[Meat-Head]

which transsisster

relay should draw 170 MA max

sounds like chaffed loooom

[quinnd]

Transistor grounds relay so it must be shorted relay winding, low resistance or loom short to B+. Transistor should be good for at least 500mA. I read that removing fuses while engine is running can cause immo to get scrambled so I hope this is the cause and not a bad immo box. I dont see why else the sync data would change in both modules.

[Meat-Head]

Well do what m-h-m would do

That output switches a new external relay with a doide across it for back emf

That grounds orginal wire to orginal relay, via a fuse ir 9mm bullet
If that fails, sod off

Put some pig shit on the fuses stops folks tampering

[quinnd]

Now have this hunk o junk sorted. Just to list a few- incorrect battery (too low CCA, incorrect posts. Batt neg to body ground wouldnt reach so they PK screwed it to body. Old alarm system with immo circuits still installed, despite my request for them to remove it from the start. One ign feed hanging on by three strands t ign switch due to poor install of some search lights. FP and main relay stabbed right through with screw driver no doubt in an attempt to remove them from their holders., and finally a bad ground at intake manifold for main efi loom.
So after all that I still found after reloading original dumps, that I would get one start (or key cycle) and then the last byte in PCM 93C66 would change and then no start. Did this maybe 6 times. Immo 93LC66A would not change at all. So I fitted the old eprom back to pcm (as this hadnt been heated so many times), the only other thing I did was hit 'verify' in xprog after I had done the write. Now it is all good. Have started it maybe 30 times with now issue. By the way, removing the eprom from this PCM does not remove immo

[Meat-Head]

So I fitted the old eprom back to pcm (as this hadnt been heated so many times),


OFF TOPIC:-

RUMOR HAS IT

You need to do some home work but if you ever milage IN-correct peugot 406 and change the eeprom it must be an Actimel not an Microwire (or vise versa) other wise it don't do run run do run run