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 Post subject: 2016 T23 - No ECM Data
PostPosted: Wed Apr 14, 2021 6:39 am 
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Joined: Sun Nov 08, 2020 4:35 pm
Posts: 3
Hi Everyone,
I recently bought a used 2016 Axis T23. The engine had low compression on two cylinders and the dealer replaced it with a Jasper re-manufactured engine as part of the deal. We did a water test about a month ago. We picked up the boat for good on Monday (4/12). On Tuesday we put the boat in the water and tooled around for about 3 hours just breaking in the motor. We tested all the systems and everything worked as it should. I parked the boat for the afternoon and went back out in the evening to go cruise around after work. However, the boat would not start and threw a "No ECM Data" in the gauge.

So here are some symptoms thus far:
- Turn key to ignition, "No ECM Data" (Hour meter = 0.0, all gauges function properly)
- Boat will not turn over at all, I can't hear/tell if the fuel pump is running
- Radio, blower, accessories function fine
- Batteries are new

Troubleshooting So far:
- Kill Switch on Right side below dash, cycled several times // No changes
- Use battery 1, battery 2, and 1+2 // No resolve/change
- Disconnect batteries for 10 minutes, reconnect // No change
- Remove engine cover, check all fuses on ECM // No bad fuses
- Switch two identical relays on ECM fuse box // No change
- Disconnect / Reconnect ECM cable // No change

What else can I do to troubleshoot this issue? I don't like the idea of taking the boat out with the family and having this issue arise. I'd like the confidence of assuring the issue is resolved. At this point I assume it's either bad cabling, a bad ECM, ECM not getting power, or ...? Obviously I left my volt meter at home on the work bench :cry: .

Does anyone have other suggestions or troubleshooting advice? Thank you in advance.


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 Post subject: Re: 2016 T23 - No ECM Data
PostPosted: Wed Apr 14, 2021 2:24 pm 
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Joined: Sun Nov 08, 2020 4:35 pm
Posts: 3
Solved: Loose connector in engine for main power to ECM. Removed the seat and step/cover from the rear of the boat, also removed the panel on port side storage locked beside engine. It was just loose enough to prevent a reliable connection. I tightened it and it immediately functioned as it should.


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 Post subject: Re: 2016 T23 - No ECM Data
PostPosted: Wed Apr 14, 2021 7:56 pm 
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Joined: Wed Apr 21, 2010 9:00 am
Posts: 1107
Good find... Sometimes a loose connection leads someone down the wrong path.


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