Er-1 er-3 codes Yamaha apex still runs fine

[Ryderhard]

I have a 06 apex RTX has 8k on her it resently started throwing er-1 and it also flashes er-3 messages on the screen the gage cluster freaks out every light comes on . I noticed if I rev it not enough to engage the clutch. The speedo goes up to like 50 and the tach goes in and out and the fuel and hand earners alternate on the screen it basically flips out.... The sled runs perfectly fine , maybe a bad cluster?? . Things I have checked connections at cluster and ecu , battery terminals new starter solenoid due to corrosion and the battery is new . It is a intermittent issue that doesn't happen all the time any ideas I'm pretty certain it's not a wiring issue . Does anybody else have any ideas? . Also are the clusters and ecu 's interchangeable between yrs my buddy has a 07, sorry for the rant but slots going on tht I can't explain

 

[Ryderhard]

It also doesn't do it all the time I started it up today and let it warm up an was fine then the tach dropped out no codes no nothing and sounded healthy. I've heard problems with the ground block on the harness? Anybody have troubles with those?

 

[Ryderhard]

Soooo what I found is corrosion in the ecu plug... I was lookin in the wrong spot for it haha but it seems to be all good now

 

[Bradford]

Soooo what I found is corrosion in the ecu plug... I was lookin in the wrong spot for it haha but it seems to be all good now

Good info, thanks for posting the fix!

 

[Ryderhard]

No problem I noticed alot if people had viewed it but had no idea so i figure I would pass the info on