F70 3 beeps

[Jack1747]

I have twin 70s. New to me. Just got boat. Used 72 hours run time..3 beeps in neutral. Swapped onboard fuel filter housings (sensor) and trouble stays with port engine. From what I have been reading, a ground to the blue and wht wire to the sensor (switch) is how the alarm is activated. Tomorrow I will check that wire to ground. Question is is there something on the engine that generates alarms? Is it some type of alarm con*****er? Is there somewhere I can see a schematic? O'yeah, thanks for letting join the forum.. Jack

[99yam40]

no one but you know what model motors you have and what year they were manufactured

remote con*****ed motors have buzzers in the con*****ers

[Jack1747]

no one but you know what model motors you have and what year they were manufactured

remote con*****ed motors have buzzers in the con*****ers

Sorry about that. I do know better. F70LA 6CJ L 1009504 I checked the blue/wht wire at the plug with my ohm meter and it is zero ohms to ground.

[99yam40]

what con*****ers are you using?
Hopefully someone will drop in that has a wiring diagram and can help you

[Jack1747]

what con*****ers are you using?
Hopefully someone will drop in that has a wiring diagram and can help you

Yamaha 704

[Jack1747]

Could this be a ecu problem?

[ausnoelm]

Yes it "could" be, it could also be something simple, you will need to do some simple trouble shooting, don't get tunnel visioned, you have two motors, test suspect meter readings between the two.

[99yam40]

Maybe you can tell us when the 3 beeps happen.
just key on , or motor running.
does it keep repeating over and over
does it stop when you put in gear
or do you have to turn the key off to stop the beeping?

it was my understanding water in fuel filter quits alarming when put in gear. I am not sure on what models.
if that is what this is and you swapped the filters between the motors and it did not change, then maybe a wiring problem( shorted wire)

[boscoe99]

In a twin application there will be beeps when the key is turned on.

[99yam40]

In a twin application there will be beeps when the key is turned on.

is that 3 peeps like he said?

[boscoe99]

is that 3 peeps like he said?

Dang if I know.

All I think that I know is that he heard beeps when the key is turned on. A twin engine key switch panel beeps when the key is tuned on.

[99yam40]

Boscoe, what do you know about the blue/white wire he says checks grounded?

[boscoe99]

He was thinking that he was hearing the peeping water in fuel warning.

[99yam40]

Sorry about that. I do know better. F70LA 6CJ L 1009504 I checked the blue/wht wire at the plug with my ohm meter and it is zero ohms to ground.

if he disconnects the plug at the sensor and the blue/white still checks grounded, then there must be a problem in the wiring harness