2018 Yamaha 242 SE Connext Screen

[Rv6kitfox]

Connext display issues, I’ve read through the forums.

When house and start batteries are turned on:

-the blower will randomly come on for 3-5 seconds then it goes off…or it does not come on at all. The 5 minute timer however does count down regardless.

-The navigation/running lights come on

-the display may or may not show voltage for the batteries.

-joystick controls don’t work

-Error messages as seen in the pics.

-Both engines start right up

-no tach displays

-no F/N/R displayed

-Depth readout on display is blinking

Last pic is the display with the engines running.
Although the volts on the display don’t change, the batteries they at 12.8V when off and 14.1V when engines are running.

Although both batteries tested good I replaced them anyway with brand new.

-I disconnected and reconnected every plug under the helm and in the engine compartment.
-I removed and checked ever fuse inside the engine compartment back well in the fuse panel
-I Checked the CAN fuses under the helm
-Disconnected the GPS plug and reconnected
-Disconnected BCU plugs in engine compartment and reconnected.
-Removed the battery switches by the batteries and and verified all connections were proper and tight
-Tried the ‘reset’ by turning the battery switches on and starting the engines for a couple minutes the shutting down and repeating multiple times.
-Tries disconnecting and reconnecting the batteries multiple times.

Best way to check grounds?? Main cables travel from battery compartment to engine bay on Port side??

I’m at a loss at this point, thanks in advance for ANY suggestions.

 

[Dave burke]

hmm. Do you want analog tachs as well as the digital info in the Connext screen? Does the stereo work? Fuel gauge?

I had similar problems on my 2017 212X. Turns out the problem was the port side tach. A lot of the info going to the Connext screen goes through this tach in my boat. Counter intuitive but that's how Yamaha built it.

 

[Rv6kitfox]

Connext display issues, I’ve read through the forums.

When house and start batteries are turned on:

-the blower will randomly come on for 3-5 seconds then it goes off…or it does not come on at all. The 5 minute timer however does count down regardless.

-The navigation/running lights come on

-the display may or may not show voltage for the batteries.

-joystick controls don’t work

-Error messages as seen in the pics.

-Both engines start right up

-no tach displays

-no F/N/R displayed

-Depth readout on display is blinking

Last pic is the display with the engines running.
Although the volts on the display don’t change, the batteries they at 12.8V when off and 14.1V when engines are running.

Although both batteries tested good I replaced them anyway with brand new.

-I disconnected and reconnected every plug under the helm and in the engine compartment.
-I removed and checked ever fuse inside the engine compartment back well in the fuse panel
-I Checked the CAN fuses under the helm
-Disconnected the GPS plug and reconnected
-Disconnected BCU plugs in engine compartment and reconnected.
-Removed the battery switches by the batteries and and verified all connections were proper and tight
-Tried the ‘reset’ by turning the battery switches on and starting the engines for a couple minutes the shutting down and repeating multiple times.
-Tries disconnecting and reconnecting the batteries multiple times.

Best way to check grounds?? Main cables travel from battery compartment to engine bay on Port side??

I’m at a loss at this point, thanks in advance for ANY suggestions.

View attachment 220122View attachment 220123View attachment 220124

I fixed it!

 

[Dave burke]

Good stuff. What was the problem?

 

[Rv6kitfox]

Good stuff. What was the problem?

Fusion Audio head on the swim platform had some corrosion on a couple of the connectors. As soon as I unplugged the connectors the Connext display worked as it should. I’m going to pull the fusion harnesses back up into the helm and reinstall it in the bow area. Too much water on the swim platform for the Fusion to last very long.

 

[Dave burke]

It's weird how the audio system affects the Connext. I accidentally nicked the wire going from the HU to the swim platform controller and the Connext gave off lots of errors until it was fixed

 

[Harvey Gessin]

I HAVE A SIMILAR ISSUE WITH THE CONNEX SCREEN.
THE SCREEN LIGHTS UP AND STATES YAMAHA
THE BLOWER COMES ON BY ITSELF ONCE THE KEY IS TURNED ON, THATS ALL IT WILL DO.
I DISCONNECTED THE STEREO PLUG COMING FROM THE SWIM PLATFORM
I BROUGHT MY BATTERIES UP TO FULL CHARGE, THEN DISCONNECTED THEM FOR 1/2 HR, JUST TO MAKE SURE THE SCREEN WAS POWERED DOWN
I REMOVED THE SCREEN, AND HAD A ELECTRONICS GUY CHECK OUT THE SCREEN, AND HE FOUND NO SHORTS IN THE SCREEN.
HE DOESN'T BELIEVE THERE IS A PROBLEM WITH THE UNIT

WHAT DO I TRY NEXT?
IS THERE A TESTER I CAN PURCHASE TO DETERMINE THE PROBLEM?

 

[Harvey Gessin]

I have read that sinrad gps or Garmin unit has the ability to read and display engine functions from Yamaha outboard motors.
has anyone installed a sinrad or Garmin gps chart plotter unit in their jet boat, and intergraded the motor functions ?
has anyone done this?
I have been trying to purchase a replacement the Yamaha connex unit, but there out of stock, and Yamaha has no plans currently to make new units.