Ducati Monster Forum

My neutral sensor isn't working. I unplugged it and grounded it and the light didn't come on. I removed the sensor, and tested resistance across the two prongs, no good. So I need to get a new sensor.

This is where my question is. My sensor has two prongs, but every sensor I can find for sale only has one. Am I looking in the wrong place?

Thanks

This is PN 53910072A, aprox US$39.43

(https://farm3.staticflickr.com/2928/14178773611_302d1109fb_o.jpg) (https://flic.kr/p/nAVVpZ)
neutral switch (https://flic.kr/p/nAVVpZ)

Two kinds of sensors, older style is a switch, activated by a bump on the shift drum.

New style is a contact, insulated or grounded depending on whether it's touching the plastic or metal on the drum.

I'm pretty sure you've got the switch type, so rechecking it's function might be in order.

Yeah it's definitely a switch type. It basically has a plunger-style push button at the end of it, with two wire leads coming out of the switch.

I believe I've determined it's faulty, but maybe you guys can shed some light on something I'm doing wrong. I basically just hooked the two leads of my multimeter up to the two leads coming from the sensor. I switched my multimeter to the ohms reading and then pushed the plunger in with my finger. Sometimes it showed a reading on the multimeter, most of the time it didn't.

I'm just a little suspicious though because for the last 8 months the neutral light hasn't come on sometimes and not come on sometimes. It's just not been working ever since I put my bike back together after the crash.

Is it possible that "plunger" is actually the contact and it's just spring-loaded? So pushing it with my finger wouldn't give an accurate reading?

It's a switch.

It could be faulty, or a wire could be broken.
Fasten it so that it's fully depressed, then wiggle wires to see if it changes reading.

I had my leads hooked directly up to the two pins coming out of the back of the sensor, so I'm thinking it's the switch.

Is the switch DarkMonster linked to the one I need? Anybody know of a cheaper alternative. The single wire sensors are like $15 on ebay.

That's from the M900 1998 parts catalog . . .

So does that mean it's a two-wire switch? I don't know if that's a dumb question or not...

Slightly unrelated, do you have an electronic version of that catalog you could e-mail me?

it's online only  . . sorry

go to www.proitalia.com (http://) and look for the OEM tab, you can download it there in PDF