Code 43 Phazer 2007

[ATV PRO #11]

Hey everyone. Could use some help.

1st ride for me yesterday and it died in middle of field suddenly.

Sled was warmed up, fresh premium put in, stabalizer used in spring when put away. Just put new track on.
Did have wiring and battery cage nicely bent forward to get at everything, mancave was toasty warm, noticed no chaffing anywhere, inspected yellow ground block. Wiring updated, has fan.

Pump sounded very weak when KO, starter would engage for 1, maybe 2 seconds and stop. CODE 43.
Relay is clicking (proper wire colors confirmed) (top row, can feel it click)
Confirmed power coming out of relay and pump getting power. ALso , relay next to it has same product numbers on it so I swapped the 2, to confirm, and still no crank code 43, pump sounded same.
When I pull the plug off the fuel pump, no code 43 and still no crank.

DId diagnostic code 9. Didn't work at all. No clicks no nothing. Display did say "12_2" at the bottom

Took fuel line off, under seat, bumped KO. Nothing. Kept KO for a few seconds and fuel barely trickled out.

Would like to note also, the back up beeper, while relay is clicking is making a very quite electronic noice. Took me a while to find it but it was the beeper. Also confirmed ECM by swapping out the old original before updated ECM was put in.

Lastley, I know this is a long winded post but my thought is more info the better, I ran power directly to the pump with that same low whinning kinda sound coming from it.

Pretty disapointed as i've put 11,000 kms on this thing and NEVER ever had to walk away from it. I've broken 4 suspensions, even ripped the crap outa the track and it ALWAYS got me home.

 

[yamahas]

43 is voltage related. Do you have a battery from a known good source that you can use for trouble shooting?

12v may be present but not enough power to run things once the sled asks for more. This would be the easiest thing to check.

If the other battery works, while running check the voltage at the battery.

 

[ATV PRO #11]

Battery I checked before firing sled other day. She was at 12.6v sitting all summer.
In the process of troubleshooting today I noticed the battery would read 12.2-12.4 while I had the KO.
So, I turned off key and she started climbing back up, voltage wize.
For remainder of tests, I had a trickle charge on battery at over 12.8v upwards of 13.1v while testing.
Back out there running through wiring and getting this email, Battery was at 12.7.

 

[ATV PRO #11]

unplugging pump under dash (where key is) i'm getting 12.8v for about 3-4 seconds until the relay clicks and it goes down to around 5.5v.
double checked ground and it's good.
reading the manual, I may have read the meter wrong while checking the relay itself.
Is the idea to hook up power to the #1 and #2 then check the voltage of 3 and 4? (Following the wire color codes)
I'm unsure of what indicates a faulty relay.

 

[ATV PRO #11]

Also, I jumped the starter solinoid and it does turn over. No fire or fuel smell at all.

Also looked up the wiring harness number 8GN-82590-00 is not the updated one. 8GN-82590-01-00 shows as the updated harness. But i've had no issues to date othewise.

Information overload probably, I bought a Yamaha because I'm no good at figuring these things out. SO those who respond, thanks in advance!!

 

[yamahas]

Electrical problems can be really, fun lol.

Are you saying that in diagnostic mode you see a code 9?

 

[ATV PRO #11]

Electrical problems can be really, fun lol.

Are you saying that in diagnostic mode you see a code 9?

I followed instructions to go into Diagnostic mode. Using the "select button" I went into #9. From there it says to push the "Grip warmer" button to initiate but it did nothing when I did that. Tried several times with no luck. I'm unsure what it will give me but I read in another post for same issue regarding relay.

 

[yamahas]

I have never used diagnostic mode myself, hopefully someone else can elaborate on that for you.

By the sounds of it, you have a manual. Did you check for open/shorts in the wires specified?

The expected result when checking the relay is that when you have power at terminals 1 and 2 you should have continuity at terminals 3 and 4. With your multimeter that should be 0 ohms. Or if you have the 'beeper' function on you should hear a beep when the power is applied to terminals 1 and 2.

 

[cannondale27]

You haven't done a load test on battery from what I have read. Volt meter at battery crank sled over and read the voltage. If under 11.5 volts battery is junk.

 

[ATV PRO #11]

You haven't done a load test on battery from what I have read. Volt meter at battery crank sled over and read the voltage. If under 11.5 volts battery is junk.

I have a no crank situation so I haven't attempted. I do however have a load tester So I will confirm that today.

My good friend/customer Brian (30+year Yami Mechanic) is away right now but quickly did reply my help text that if it's not cranking with that code there a bigger problem.
Later today I'll pull harness apart starting around ECM. Has to do with me changing the track and subtly bending the harness towards ski.

 

[kallholmen]

My guess is shortcut IN the battery. Try an other battery. Or check ground.

 

[ATV PRO #11]

Battery tested fine this evening. Sitting all night and today she's at 12.58v. pretty good shape IMO.

I've been reading these relays have been updated. New red one's. Non mechanical (solid state) BUT haven't confirmed if they alow the ECM to hibernate or not yet.
Once I confirm any of this i'll update here. Supposedly, from reading on here the 2014's have the newer red relays

Tried sled again tonight, no code, relay is clicking steady now and starter relay humming.
In the city tomorrow so i'll order some relays, starter solinoid and hopefully have a chat with a very well rounded Yamaha sled Mechanic!!
He did text me back but was out of town. Code 43 is one issue and sled not turning over is seperate. Looks like it just happend at the same time.

 

[cannondale27]

I would also be interested in if they allow the ECU to Hibernate. In a past project I looked and tried many Solid State Relays and none allowed ECU to Hibernate. All had some voltage even when off. Maybe the ECU one is not Solid state.

So when you tried it tonight it still would not start? Have you checked for pulse at injectors? Hoping you dont have to look for a open in those wires going to ECU. May consider a new harness if that is the case.

 

[ATV PRO #11]

SOrry for long delay in following up gents.

Had my good friend Brian buzz over. Found issue withing 3 mins.
Yellow ground block. Took a jumper and grounded to battery and fixed.
I tried that to the bolt hole by rad........Rad is mounted on rubber bushings...........DOH!!!

All that messing around is it was the darn grounding block after all. Finding out my harness wasn't the updated version i've made my own grounds from that yellow block to the chassis and another direct to battery.

Case closed. Thank you everyone who helped out!!!

She's sold and on my way to Weyburn SK tomorrow moring. Purchased a brand new XTX

 

[ATV PRO #11]

I would also be interested in if they allow the ECU to Hibernate. In a past project I looked and tried many Solid State Relays and none allowed ECU to Hibernate. All had some voltage even when off. Maybe the ECU one is not Solid state.
.

Local dealer could not confirm updated relay would "not allow" ECU to sleep but did say everyone and there dog here in MB has updated to the red relay. They said "Fuel Relay" only. all others have to be stock. Honestly didn't ask mechanic that zipped by. I was so amazed how quick he found the issue!!