Testing Crankshaft Position Sensor - Ducati Monster Forums: Ducati Monster Motorcycle Forum

» Site Navigation
»
»
»
» Other Ducati Motorcycle sites
» Insurance
» Sponsors
» Our Partners
»ATV Reviews
»Motorcycle Games
Reply
 
Thread Tools Display Modes
Old 11-06-2012, 03:30 PM   #1 (permalink)
Senior Member
 
Join Date: Nov 2011
Posts: 341
Default Testing Crankshaft Position Sensor

Can someone please let me know if I am doing this right? I unhooked the sensor and there are three prongs; I tested the sensor by touching the red and black probes of my multi-meter to the prongs in a variety of possible configurations. My meter just reads 1 Ohm no matter which way I touch the prongs.

First, am I doing this right? Second, what should the Ohm reading be to know if it is good or bad? I think I read somewhere that a reading of 1 Ohm means the sensor is shot. I can't find where I read that and don't even know if that is correct. Anyone who knows the answers please help me out. Thank you.
memetic is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 11-06-2012, 04:39 PM   #2 (permalink)
Senior Member

 
Capo's Avatar
 
Join Date: Dec 2003
Location: A Foward Location
Posts: 1,954
Default

Its a hall effect sensor, and is powered from the ECU, a simple rig can be made to test the fuctionality.
__________________
capo di tutti capi
Capo is offline   Reply With Quote
Old 11-06-2012, 05:42 PM   #3 (permalink)
Senior Member
 
Join Date: Nov 2011
Posts: 341
Default

Quote:
Originally Posted by Capo View Post
Its a hall effect sensor, and is powered from the ECU, a simple rig can be made to test the fuctionality.
Can't I just use a multi-meter? Thanks.
memetic is offline   Reply With Quote
Old 11-06-2012, 07:32 PM   #4 (permalink)
Super Moderator

 
caferacermike's Avatar
 
Join Date: Mar 2010
Location: Austin, TX
Posts: 2,552
Default

Yeah waiting patiently as well. I'd love to get some info on this "rig". Might be handy to have the info in my garage for future reference.
__________________
06 Paul Smart Sport Classic NFS ever.
08 S4RS Tricolore #081 NFS ever.
01 M600, aka, The Pink Monster
97 900SS CR
72 Norton Commando 750
03 KX60 with S4R rear shock,Honda CB350F, Hodaka Ace90, 3x Yam-YGS1, Yam-CS3 200, Vespa small frame, Gilera 106, Puch Sabre, Puch 50 Boy Racer, Ducati 250 bevel, Benelli 250, Benelli 360, Honda CB350T, and many more.
caferacermike is offline   Reply With Quote
Old 11-07-2012, 03:21 AM   #5 (permalink)
Senior Member

 
Capo's Avatar
 
Join Date: Dec 2003
Location: A Foward Location
Posts: 1,954
Default

http://www.wellsve.com/sft503/Counterpoint3_1.pdf


Here is a tester circuit
__________________
capo di tutti capi

Last edited by Capo; 11-07-2012 at 08:09 AM.
Capo is offline   Reply With Quote
Old 11-07-2012, 11:51 AM   #6 (permalink)
Senior Member
 
Join Date: Nov 2011
Posts: 341
Default

That's great but my sensor doesn't have colored wires, there is no little knob to turn and I still don't know what sort of reading I am looking for to determine if my sensor is bad.

I really appreciate your time posting this up, but I still don't know what to do. I need to find a manual dammit. Thanks.
memetic is offline   Reply With Quote
Old 11-07-2012, 02:53 PM   #7 (permalink)
Senior Member

 
Capo's Avatar
 
Join Date: Dec 2003
Location: A Foward Location
Posts: 1,954
Default

Technical Data
Supply voltage.....................................4.5 > 24 Vdc
Nominal sensing distance............................1.5 mm
Max be increased in proportion to pick up size
Current (typ) .................................................1 0 mA
Current (max) ...............................................20 mA
Enviroment sealing................................... IP67
Weight............................................ ..............30 g
Temperature range ........................ -30 > + 130 C
Tightening torque........................................... 6 Nm
Output............................................ ...........PNP
Output sink voltage ............................0.4v Max
Trigger type........................................... ferrous

Electrical connections
Pin 1 Gnd
Pin 2 signal
Pin 3 VBB

On models with electric speedometer, it is interchangable with the sensor on the rear wheel, hook up the meter and rotate the wheel, failing that remove plugs and turn engine over.
__________________
capo di tutti capi

Last edited by Capo; 11-07-2012 at 02:56 PM.
Capo is offline   Reply With Quote
Old 11-07-2012, 06:04 PM   #8 (permalink)
Super Moderator

 
caferacermike's Avatar
 
Join Date: Mar 2010
Location: Austin, TX
Posts: 2,552
Default

Quote:
Originally Posted by Capo View Post

On models with electric speedometer, it is interchangable with the sensor on the rear wheel, hook up the meter and rotate the wheel, failing that remove plugs and turn engine over.


That sounds like gold.

So in the event of a questionable sensor, in theory, could you place the crank sensor in place of the speedo sensor and quickly turn the back tire to see if the speedometer activates?

Or would it be better to move the speedo sensor to the crank and fire the bike up?
__________________
06 Paul Smart Sport Classic NFS ever.
08 S4RS Tricolore #081 NFS ever.
01 M600, aka, The Pink Monster
97 900SS CR
72 Norton Commando 750
03 KX60 with S4R rear shock,Honda CB350F, Hodaka Ace90, 3x Yam-YGS1, Yam-CS3 200, Vespa small frame, Gilera 106, Puch Sabre, Puch 50 Boy Racer, Ducati 250 bevel, Benelli 250, Benelli 360, Honda CB350T, and many more.
caferacermike is offline   Reply With Quote
Old 11-08-2012, 03:04 PM   #9 (permalink)
Senior Member
 
Join Date: Nov 2011
Posts: 341
Default

Capo, I appreciate your input I really do, but I am an architect not an electrical engineer. I need basics -- basics for a layman -- not basics for an engineer. I need to know how to test my sensor; like which prongs do I hook my multi-meter to and what to do after they are hooked up. That sort of basic info. Thank you.
memetic is offline   Reply With Quote
Old 11-08-2012, 03:28 PM   #10 (permalink)
Senior Member

 
Capo's Avatar
 
Join Date: Dec 2003
Location: A Foward Location
Posts: 1,954
Default

Ok, a hall effect sensor works by emitting a pulse when a ferrous object moves though its sensing field, in the case of the crankshaft sensor this will be (on later models) the teeth on the layshaft gear. A pulse is generated each time a tooth passes the sensor.
Now the sensor is powered so the wire to pin 3 is hot, pin 1 is ground and the pulse appears on pin 2. Your meter should be connected to pins 1&2, with power on (check pins 3-1) the voltage will go from zero to positive each time a pulse is generated.
__________________
capo di tutti capi
Capo is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 11:21 PM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.0
Motorcycle News, Videos and Reviews
Honda Grom Forum Harley Davidson Forum Honda 600RR Kawasaki Forum Yamaha R6 Forum Yamaha FZ-09 Forum
1199 Panigale Forum Roadglide Forum Honda CBR1000 Forum Vulcan Forum Yamaha R1 Forum Yamaha R3 Forum
Ducati Monster Forum Harley Forums Honda CBR250R Forum ZX10R Forum Star Raider Forum Yamaha Viking Forum
Suzuki GSXR Forum V-Rod Forums Honda Shadow Forum Kawasaki Motorcycle Forum Star Warrior Forum KTM Duke 390 Forum
SV650 Forum BMW S1000RR Forum Honda Fury Forum Kawasaki Versys Forum Drag Racing Forum Ducati 899 Panigale Forum
Suzuki V-Strom BMW K1600 Triumph Forum Victory Forums Sportbikes BMW NineT Forum
Volusia Forum BMW F800 Forum Triumph 675 Forum MV Agusta Forum HD Street Forum Suzuki GW250 Forum
Yamaha Motorcycles Victory Gunner Forum Honda Vultus Forum