Why won't my ECU talk to the select monitor?
19 February 2002, 02:06 PM
#1
I've had my car for two years now and in that time its been serviced at Subaru Manchester. However the ECU has never comunicated with the select monitor (a problem they said they hadn't encountered before). This hasa never really worried me before cause the engine has been fine all this time but..... im thinkin' of getting a Dawes Device but would like to set it up properly with the aid of a select monitor.
Does anybody know why this would be the case? If a new ECU would cure the problem? Or wud it be a simply a case of dodgy connection somewhere in the car??? Im cinfused so any help would be appreciated.
Cheers,
Tony
MY93 WRX
Does anybody know why this would be the case? If a new ECU would cure the problem? Or wud it be a simply a case of dodgy connection somewhere in the car??? Im cinfused so any help would be appreciated.
Cheers,
Tony
MY93 WRX
19 February 2002, 03:25 PM
#2
Scooby Senior
Join Date: Oct 2000
Location: Zurich, Switzerland
Posts: 3,105
Likes: 0
Received 0 Likes
on
0 Posts
How does the car go? Sounds to me like you don't have a Subaru ecu inside your car...have you checked? 
If it is, then either faulty cabling to the connector or the 93 imports are different somehow?
Richard
If it is, then either faulty cabling to the connector or the 93 imports are different somehow?
Richard
19 February 2002, 10:45 PM
#3
Scooby Regular
Join Date: Dec 2000
Posts: 403
Likes: 0
Received 0 Likes
on
0 Posts
Your 93 WRX should communicate with the select monitor,only works using the 97MY Impreza cartridge in the handset.If it doesnt then it must have an aftermarket ECU.
Only had 1 car that would not communicate & traced the fault to several damaged wires in the loom that runs along the O/S inner wing (removed splash guard).Car had been previously accident damaged & bodyshop hadnt noticed the wiring damage.
Hope this helps.
Dave B
Only had 1 car that would not communicate & traced the fault to several damaged wires in the loom that runs along the O/S inner wing (removed splash guard).Car had been previously accident damaged & bodyshop hadnt noticed the wiring damage.
Hope this helps.
Dave B
20 February 2002, 10:41 AM
#4
Just checked the ECU and found a sticker on it sayin':
22611 AB530
B18-610611
2Y320
Japan Electronic Control Systems Co. Ltd.
Made in Japan
Does this mean its the original Jecs ECU then
. It did have some other Japanese writin' on it tho, in blue marker pen.
The car doesn't seem to go substantially quicker than the other Subaru's i've been in. Boost is around 11-12 Psi on my gauge, 30 - 70 mph times (thru the gears) is about 4.8 secs on average (with induction kit and full decat exhaust) using a naff stop watch so it wont be too accurate anyway. I did notice that using the conections under the steering column to reset the ECU didn't really work (infact it appeared to make it worse
), i had to disconnect the battery to do it properly.
Hmmm, im still confused
.
Anymore suggestions, comments?
Tony.
22611 AB530
B18-610611
2Y320
Japan Electronic Control Systems Co. Ltd.
Made in Japan
Does this mean its the original Jecs ECU then
. It did have some other Japanese writin' on it tho, in blue marker pen.The car doesn't seem to go substantially quicker than the other Subaru's i've been in. Boost is around 11-12 Psi on my gauge, 30 - 70 mph times (thru the gears) is about 4.8 secs on average (with induction kit and full decat exhaust) using a naff stop watch so it wont be too accurate anyway. I did notice that using the conections under the steering column to reset the ECU didn't really work (infact it appeared to make it worse
), i had to disconnect the battery to do it properly.Hmmm, im still confused
.Anymore suggestions, comments?
Tony.
20 February 2002, 12:55 PM
#5
Scooby Senior
Join Date: Oct 2000
Location: Zurich, Switzerland
Posts: 3,105
Likes: 0
Received 0 Likes
on
0 Posts
Looks like a Subaru ECU (a standard my00 Euro car has "22611 AE782" on the (green) label. Try and get a photo of the writing - someone here may speak Japanese!?
Maybe take the cover off too, & make sure there's no daughter boards added.
Then you need an ecu pinout diagram for your car - it'll show where the connectors are wired to and you can check continuity (or trace the wires back to the ecu - yuck!).
Good Luck
Richard
Maybe take the cover off too, & make sure there's no daughter boards added.
Then you need an ecu pinout diagram for your car - it'll show where the connectors are wired to and you can check continuity (or trace the wires back to the ecu - yuck!).
Good Luck
Richard
20 February 2002, 01:16 PM
#6
Scooby Regular
Join Date: Jun 1999
Posts: 1,430
Likes: 0
Received 0 Likes
on
0 Posts
Easiest thing is to open the ECU case (four screws) and look at the circuit board inside:
The chip on the front right is not original - you should have an empty space.
You can also check the jumper (J1) - if it is cut, the ECU is using the additional chip:
More info Here
Thanks
Gavin
[Edited by GavinP - 2/20/2002 1:20:15 PM]
The chip on the front right is not original - you should have an empty space.
You can also check the jumper (J1) - if it is cut, the ECU is using the additional chip:
More info Here
Thanks
Gavin
[Edited by GavinP - 2/20/2002 1:20:15 PM]
Trending Topics
20 February 2002, 03:29 PM
#8
Scooby Regular
Join Date: Jun 1999
Posts: 685
Likes: 0
Received 0 Likes
on
0 Posts
Hi Tony,
Like Dave says, the Select Monitor program catridges do not all do all model years. Ask your garage whether they ever got their select monitor talking to any car which is your model year / model of car. If they haven't, try a garage. Most authorised dealers should have all cartridge versions.
Cheers
Steve
Like Dave says, the Select Monitor program catridges do not all do all model years. Ask your garage whether they ever got their select monitor talking to any car which is your model year / model of car. If they haven't, try a garage. Most authorised dealers should have all cartridge versions.
Cheers
Steve
20 February 2002, 04:51 PM
#9
Hi Steve,
I take my car to Subaru Manchester and im positive they have done other cars of my age/type. Im gonna take it back soon for them to have a look, i've got every confidence in them so no worries there. Pete did say he had a spare ECU to try, so that will tell us if the wirin' is a bit dodgy.
In the mean time im gonna have a look under the cover and see what (if nethin) is lurkin' there that shouldn't be
.
Cheers,
Tony.
I take my car to Subaru Manchester and im positive they have done other cars of my age/type. Im gonna take it back soon for them to have a look, i've got every confidence in them so no worries there. Pete did say he had a spare ECU to try, so that will tell us if the wirin' is a bit dodgy.
In the mean time im gonna have a look under the cover and see what (if nethin) is lurkin' there that shouldn't be
.Cheers,
Tony.
20 February 2002, 05:09 PM
#10
Scooby Regular
Join Date: Jun 1999
Posts: 685
Likes: 0
Received 0 Likes
on
0 Posts
Hi Tony,
That won't prove your wiring, but it will prove your ECU PCB/program. You can prove _your_ wiring by putting your ecu in another car - if it works, it was your wiring at fault.
Even if your ECU has been chipped, it's extrememly unlikely that they've modified the code. They just change the maps (data) generally. So a 'chip' shouldn't prevent the diags from working.
Let us know !
Steve
That won't prove your wiring, but it will prove your ECU PCB/program. You can prove _your_ wiring by putting your ecu in another car - if it works, it was your wiring at fault.
Even if your ECU has been chipped, it's extrememly unlikely that they've modified the code. They just change the maps (data) generally. So a 'chip' shouldn't prevent the diags from working.
Let us know !
Steve
20 February 2002, 08:08 PM
#12
Scooby Regular
Join Date: Aug 2000
Posts: 326
Likes: 0
Received 0 Likes
on
0 Posts
Hi Tony,
First thing to check if the Monitor will not fire up is the brown ignition relay located above the fusebox inside the car.This relay is the main power supply for most of the car.
Symptoms of its failure are mutiple codes in the memory and failure of the Monitor to fire up.When they get really bad it will actually erease the codes from the memory.
IIRC they cost about 35quid from Subaru dealers.
Also check the yellow plug for the monitor under the dash has no broken wiring although I have only seen this with the later OBD style plugs.
Hope that helps
Steve
First thing to check if the Monitor will not fire up is the brown ignition relay located above the fusebox inside the car.This relay is the main power supply for most of the car.
Symptoms of its failure are mutiple codes in the memory and failure of the Monitor to fire up.When they get really bad it will actually erease the codes from the memory.
IIRC they cost about 35quid from Subaru dealers.
Also check the yellow plug for the monitor under the dash has no broken wiring although I have only seen this with the later OBD style plugs.
Hope that helps
Steve
21 February 2002, 12:13 AM
#13
Scooby Regular
Join Date: Jun 1999
Posts: 685
Likes: 0
Received 0 Likes
on
0 Posts
Tony,
When the garage said that they couldn't get the select monitor working, did they mean it wouldn't talk, or would even power up ?
Like Steve says, that'll give you another clue, since the select monitor draws its power from the car.
Steve
When the garage said that they couldn't get the select monitor working, did they mean it wouldn't talk, or would even power up ?
Like Steve says, that'll give you another clue, since the select monitor draws its power from the car.
Steve
21 February 2002, 11:03 AM
#14
Thanks for your help so far guys.
As far as i can remember the select monitor would power up and you could delete fault codes/reset the ECU but it would not communicate fully. i.e the boost pressure, temps etc (all the fancy stuff). Forgive my ignorance as im not entirely sure what the select monitor is capable of doing
.
I think i've found why this mornin, have a look at these:
What do you think? I take it it's not standard. The daughter board does have JECS writen on it tho, im definately still confused . The performance doesn't seem to be above standard (standard 15.5 PSi fuel cut still in place etc.)
Hmmmmm.
Tony.
As far as i can remember the select monitor would power up and you could delete fault codes/reset the ECU but it would not communicate fully. i.e the boost pressure, temps etc (all the fancy stuff). Forgive my ignorance as im not entirely sure what the select monitor is capable of doing
.I think i've found why this mornin, have a look at these:
What do you think? I take it it's not standard. The daughter board does have JECS writen on it tho, im definately still confused
. The performance doesn't seem to be above standard (standard 15.5 PSi fuel cut still in place etc.)Hmmmmm.
Tony.
21 February 2002, 11:19 AM
#16
Scooby Regular
Join Date: Jun 1999
Posts: 685
Likes: 0
Received 0 Likes
on
0 Posts
Blimey,
That's a chip-and-a-half - they don't normally mass produce the EPROM labels in felt tip ! What's the chip number on IC600 ? That looks like another processor. Very interesting that it actually a JECS board, since they make the original ECU.
I think I'll phone a friend...
Steve
That's a chip-and-a-half - they don't normally mass produce the EPROM labels in felt tip ! What's the chip number on IC600 ? That looks like another processor. Very interesting that it actually a JECS board, since they make the original ECU.
I think I'll phone a friend...
Steve
21 February 2002, 02:01 PM
#18
Steve,
Don't know the number on the IC600, ill have a look 2moro if it will help. Hmmm, maybe i should put it on a rolling road and see what power its getting. The fact that its a JECS board is confusing, it does look like its been installed well. Not a botch job neway.
Anybody with suggests etc. keep 'em comin'.
Cheers,
Tony.
Don't know the number on the IC600, ill have a look 2moro if it will help. Hmmm, maybe i should put it on a rolling road and see what power its getting. The fact that its a JECS board is confusing, it does look like its been installed well. Not a botch job neway.
Anybody with suggests etc. keep 'em comin'.
Cheers,
Tony.
21 February 2002, 02:56 PM
#19
Guest
Posts: n/a
This looks like a development ECU from UNISIA JECS.
It is no wonder the Select Monitor does not communicate.
Judging by the number of connection lines going to the board it looks like they are not using the processor or the memory on the main board but brought it all off onto the auxiliary board.
This may be because it is easier for live mapping.
I am sure we can read the EPROM (look like 16 bit high and low) and offer performance improvements but it will be a bit of development depending on how the software is written on the chips.
Initially a session on the dyno to see how good the mapping is would be the best bet.
It is no wonder the Select Monitor does not communicate.
Judging by the number of connection lines going to the board it looks like they are not using the processor or the memory on the main board but brought it all off onto the auxiliary board.
This may be because it is easier for live mapping.
I am sure we can read the EPROM (look like 16 bit high and low) and offer performance improvements but it will be a bit of development depending on how the software is written on the chips.
Initially a session on the dyno to see how good the mapping is would be the best bet.
21 February 2002, 03:52 PM
#21
Scooby Regular
Join Date: Jul 1999
Location: Kuala Lumpur, Malaysia
Posts: 443
Likes: 0
Received 0 Likes
on
0 Posts
Tone Luc, if this is any help, the label on your ECU has a Japanese (Chinese) character next to the "52R 3" that means experimental or trial or test. So it may not be the final version.
21 February 2002, 04:30 PM
#22
Cheers for that David, pity your so bloody far away or i would have popped down to see you.
I did have plans for a Link ECU, but i don't know how this would affect it now. Will i need a standard ECU or could this be brought back to standard spec or can it be left in and remapped itself (David?) ???? Or i had thought about Apex'i Boost and fuel controllers. Anybody got any suggestions?
Also why would this be here if the car appears to perform like a standard WRX, thats the bit thats confusing me. It certainly doesn't reach silly boost levels (maybe its faster than i think).
Tony (still confused ).
I did have plans for a Link ECU, but i don't know how this would affect it now. Will i need a standard ECU or could this be brought back to standard spec or can it be left in and remapped itself (David?) ???? Or i had thought about Apex'i Boost and fuel controllers. Anybody got any suggestions?
Also why would this be here if the car appears to perform like a standard WRX, thats the bit thats confusing me. It certainly doesn't reach silly boost levels (maybe its faster than i think).
Tony (still confused
).
21 February 2002, 05:28 PM
#24
Scooby Regular
Join Date: Jun 1999
Posts: 685
Likes: 0
Received 0 Likes
on
0 Posts
Hi Tony,
The main processors on those boards have to be 'mask programmed', which takes a long time for the chip manufacturer to set up. Subaru probably hit some deadline and decided to ship some cars with EPROMs just to get the cars out on time.
Your car probably is running pretty standard maps, but on early software by the looks of this now. It could probably be returned to standard with the fitting of an external ROM with the standard code and data. That's assuming the rest of the board is normal (very likely).
In my opinion, Mervyn Carroll at PE is the man for this if you wanted it done.
Cheers
Steve
The main processors on those boards have to be 'mask programmed', which takes a long time for the chip manufacturer to set up. Subaru probably hit some deadline and decided to ship some cars with EPROMs just to get the cars out on time.
Your car probably is running pretty standard maps, but on early software by the looks of this now. It could probably be returned to standard with the fitting of an external ROM with the standard code and data. That's assuming the rest of the board is normal (very likely).
In my opinion, Mervyn Carroll at PE is the man for this if you wanted it done.
Cheers
Steve
21 February 2002, 06:09 PM
#25
Cheers Steve,
Think i mite have a look around at what sort of price standard WRX ECUs are goin' at. Probably a lot less hassle than tryin' to get mine sorted. Im not ready at the moment to start the engine tuning for another couple of months so no real rush just yet.
Thanks agen,
Tony.
Think i mite have a look around at what sort of price standard WRX ECUs are goin' at. Probably a lot less hassle than tryin' to get mine sorted. Im not ready at the moment to start the engine tuning for another couple of months so no real rush just yet.
Thanks agen,
Tony.
21 February 2002, 06:53 PM
#26
Scooby Regular
Join Date: Mar 2000
Posts: 364
Likes: 0
Received 0 Likes
on
0 Posts
Tony,
Sorry to hear about the problems with your car mate. If you're after a standard ECU try one of the following breakers:
http://www.subaruspareparts.co.uk/
http://www.pro-parts.com/
http://www.central-subaru.co.uk/
Hope this helps,
Alex
Sorry to hear about the problems with your car mate. If you're after a standard ECU try one of the following breakers:
http://www.subaruspareparts.co.uk/
http://www.pro-parts.com/
http://www.central-subaru.co.uk/
Hope this helps,
Alex
21 February 2002, 08:41 PM
#28
Scooby Regular
Join Date: Feb 2002
Posts: 112
Likes: 0
Received 0 Likes
on
0 Posts
Hi all,
Try townsend garage Lancs..... ecu prices are £100. They are very friendly and have great prices e.g OEM Oil Filters £4.95 and NGK7 plugs £35 per set.
Tel. 01524733837
By the way ... I had my STiV at CK a couple of days ago...... and they had problems reading my standard ECU..... worked eventually but did come up with communication errors.
Try townsend garage Lancs..... ecu prices are £100. They are very friendly and have great prices e.g OEM Oil Filters £4.95 and NGK7 plugs £35 per set.
Tel. 01524733837
By the way ... I had my STiV at CK a couple of days ago...... and they had problems reading my standard ECU..... worked eventually but did come up with communication errors.
Thread
Thread Starter
Forum
Replies
Last Post
Sam Witwicky
Engine Management and ECU Remapping
17
13 November 2015 10:49 AM
