Please help. 2007 GTI 130 SE ECM diagnostic mode

[Jswindal]

I have a pair of 2007 GTI SE 130’s each with approximately 100 hrs. Last Season both ran fine with no issues at all. At the beginning of this season, I changed the oil and filter/plugs myself. One ski is running perfectly fine. The other starts and idles fine. After a few minutes of riding, it will beep 1 short beep then 1 long. According to the manual this means the ECM went into diagnostic mode. It will do this at varying intervals, sometimes back to back and sometimes after a or minute or more. If I let it idle, it will not make the beeps. I sat and circled near the boat launch for around 20-30 minutes with no beeps. After that within a few moments of giving throttle and getting on plane it would start the beeping again. To complicate things, the dash cluster stopped working (or is so faint I can’t read it) since last season.
I don’t believe the engine is overheating (no constant beeping) and seems to perform normally (aside from the beeping); starts fine, runs fine, no smoke, no unusual engine noise. Both skis are programmed to the same key and the issue persists regardless of which key is used.
Has anybody experienced anything similar? Any tips hints etc.? The last time I brought the skis to the nearest Sea Doo dealer/service to get the oil changed, they told me due to the age they didn’t really want to service them.
I live in Cape Canaveral if there is anyone local who is willing to lend a hand it would be greatly appreciated.

 

[POPPS]

sounds nuts,,,but I would go over every ground,,,every connection...and then,,,since they are identical...why not start swapping ecu's...

 

[Jswindal]

today I checked the ground and cleaned/tightened the ground connector. I measured 12.24 volts across the battery terminals and 12.24 volts from battery positive post to engine ground. I also made sure all connectors measures good. Regarding swapping MPEM s to see if the issue follows the meme but I’ve read that BUDS is needed to read/transfer data. Can I really just swap them out, plug and play?

Any other ideas or suggestions?

 

[ski-d00]

Yes, for the early years of 06-09ish of the cluster having to be married to the ECU, you can swap ECUs and key and it will start and run. It will throw some codes since the cluster won't be married to the ECU but it will run and should be good enough for checking your problem. I would switch them both and see if the problem follows to the good running ski and the good ECU to the problem ski. I suspect your faulty cluster is the problem but this will tell you.

 

[Jswindal]

Yes, for the early years of 06-09ish of the cluster having to be married to the ECU, you can swap ECUs and key and it will start and run. It will throw some codes since the cluster won't be married to the ECU but it will run and should be good enough for checking your problem. I would switch them both and see if the problem follows to the good running ski and the good ECU to the problem ski. I suspect your faulty cluster is the problem but this will tell you.

I verified the grounds and swapped ECUs and will test them in the water tomorrow. Will report back results.

 

[Jswindal]

So I tested both skis this morning. The “good” ski withe the suspect ECU operated flawlessly, no issues. THE “bad” ski with the “good” ECU ran okay for maybe 5-10 minutes then started the beeps. I think I can safely assume this problem is not the ECU.

The beeps I was getting were one short beep followed shortly after by a long beep. I also got a series of single short beeps maybe 30 seconds to a minute apart. It would not beep while idling but would start immediately after the application of power.

So is the consensus that the issue is the cluster gage?

 

[Jswindal]

So I tested both skis this morning. The “good” ski withe the suspect ECU operated flawlessly, no issues. THE “bad” ski with the “good” ECU ran okay for maybe 5-10 minutes then started the beeps. I think I can safely assume this problem is not the ECU.

The beeps I was getting were one short beep followed shortly after by a long beep. I also got a series of single short beeps maybe 30 seconds to a minute apart. It would not beep while idling but would start immediately after the application of power.

So is the consensus that the issue is the cluster gage?

 

[ski-d00]

I think it's the cluster. The reason is the long beep is usually a communication error with the cluster. You can switch clusters as well but you have to be careful removing the bezel. It's not hard but the manual gives a specific process to remove it so you don't break any of the tabs. Then it's only held in with 2 screws.

Or, you can just replace the cluster since it needs replacing anyway. The China ones that are much lower cost seem to be working well. I've installed several of them for people. You will have to flash and marry the new cluster.

 

[Jswindal]

I think it's the cluster. The reason is the long beep is usually a communication error with the cluster. You can switch clusters as well but you have to be careful removing the bezel. It's not hard but the manual gives a specific process to remove it so you don't break any of the tabs. Then it's only held in with 2 screws.

Or, you can just replace the cluster since it needs replacing anyway. The China ones that are much lower cost seem to be working well. I've installed several of them for people. You will have to flash and marry the new cluster.

Thanks ski-DOO, you’ve been a big help!

 

[Jswindal]

Thanks ski-DOO, you’ve been a big help!

I removed the gage cluster today. Obvious water intrusion. Probably should have checked this first! Lol

 

[Jswindal]

Update: I replaced the gage cluster and brought to my local Seadoo dealer to flash the gages to the ECU. Subsequent testing of the ski showed no issues! Thanks all for your input!