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Old 08-17-2021, 09:06 AM
Lutfu Lutfu is offline
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X2 2014 - 0 voltage / 0 engine hours on screen -> ECM J1-19 no ignition voltage

Dear forum -

I experienced the following issue today on our 2014 - X2 when we planned to go boating:

When I turn the ignition key right, the system/screens boots up. However the voltage shows zero, the engine hours also don't come up (screenshot), I do not hear the fuel pump "click" and the engine won't start if I press "start" or turn the key (the starter does not turn).

Everything else works fine (radio, pumps, lights etc.).

I have checked so far:
- Batteries (both fully charged and connected/no loose ends)
- Kill switch OK
- Checked/swopped fuses & relays -> seems OK
- Tried several times power off/on and turn the key
- Checked most cable connections

This is the first time it happened.

I unmounted the ignition itself, but its one piece, so cannot check voltage. Connector is OK.

Any thoughts / ideas how to trouble shoot?
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Last edited by Lutfu; 09-19-2021 at 02:18 PM. Reason: to be more specific on the issue
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  #2  
Old 08-17-2021, 11:05 AM
bloup101's Avatar
bloup101 bloup101 is offline
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Boat: 2015 Mastercraft X20 Ilmor 6.0
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Quote:
Originally Posted by Lutfu View Post
Dear forum -

I experienced the following issue today on our 2014 - X2 when we planned to go boating:

When I turn the ignition key right, the system/screens boots up. However the voltage shows zero, the engine hours also don't come up (screenshot), I do not hear the fuel pump "click" and the engine won't start if I press "start" or turn the key (the starter does not turn).

Everything else works fine (radio, pumps, lights etc.).

I have checked so far:
- Batteries (both fully charged and connected/no loose ends)
- Kill switch OK
- Checked/swopped fuses & relays -> seems OK
- Tried several times power off/on and turn the key
- Checked most cable connections

This is the first time it happened.

I unmounted the ignition itself, but its one piece, so cannot check voltage. Connector is OK.

Any thoughts / ideas how to trouble shoot?

Check the battery disconnect switch, if you have a blue sea they are prone to break internally. Fixed mine by putting bolts right through.


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  #3  
Old 08-17-2021, 11:55 AM
Lutfu Lutfu is offline
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Join Date: May 2016
Boat: X2 2014
Location: South
Posts: 76
I checked and its working. As I mentioned, all other electrical systems work normally
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Old 08-17-2021, 12:01 PM
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bloup101 bloup101 is offline
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X2 2014 - zero voltage/no cranking

Quote:
Originally Posted by Lutfu View Post
I checked and its working. As I mentioned, all other electrical systems work normally

I wonder if voltage comes from ECM, if so ECM would need troubleshooting. The engine hours for sure come from the ECM. I would suspect ECM or power to ECM. You would know for sure if you had a scanner.


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  #5  
Old 08-17-2021, 12:33 PM
jpwhit jpwhit is offline
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@Lutfu seems like you've been posting with a lot of varied issues over the last couple of months/year? Are all these issue with the same boat? Just wondering if there is a larger context such as you're dealing with a boat that's been flooded or some other major event.

For the problem in this specific thread, sounds like the ECM isn't booting up. The fuel pump will prime and the start button will turn over the engine even if CANBUS1 is totally down and the murphy screen isn't working. So those two symptoms imply the ECM isn't working. The voltage and hours come from the ECM via CANBUS1, so again implies the ECM not working. I'd start by checking that it has voltage.
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  #6  
Old 08-17-2021, 01:22 PM
Lutfu Lutfu is offline
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Join Date: May 2016
Boat: X2 2014
Location: South
Posts: 76
thanks for the hint. The boat is serving well, but indeed, we had couple of issues over past years, most of them I was able to fix myself or at the MC dealer.. I dont know much about the boat history, but it was used by a club before and I assume they did not maintain it too well. So most issues so far were related to maintenance parts.

I am on the boat know. Any hint how to check ECM Voltage? I have a voltmeter with me.
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  #7  
Old 08-17-2021, 01:29 PM
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osmonet osmonet is offline
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Out of curiosity, are the gages backlit red now or the standard blue?


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  #8  
Old 08-17-2021, 01:46 PM
Lutfu Lutfu is offline
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they are blue backlight
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  #9  
Old 08-18-2021, 05:09 PM
Lutfu Lutfu is offline
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Join Date: May 2016
Boat: X2 2014
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Quick update:

All works fine again, but I don't know what the issue was.

What I re-checked:
- Batteries (charged & connected)
- All grounds, fuses, relays
- Disconnected and reconnected most cable connections and harnesses
-> After each step I checked and same issue (no voltage, no engine hours on ECM)

Then I disconnected the all connections from the ECM, cleaned them.

Then I followed @jpwhit recommendation and checked the ECM voltage on J1. I got 12V on the pins

I almost assumed ECM is dead, but tried the ignition one more time and the screen showed voltage/hours + fuel pump clicked.

Any guess what could have happened?
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  #10  
Old 08-19-2021, 09:28 AM
jpwhit jpwhit is offline
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Posts: 229
Most likely some pins in the ECM connectors were not making good contact.
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