[rkersh409]

I am getting an error code 636 (crankshaft position sensor faulty)on my 2011 Ranger Crew 800. Will turn over but will not crank. On this post http://www.prcforum.com/forum/17-ranger-discussions/49789-check-engine-code-636-a.html, it says 560 ohms between Yellow and White and 0 ohms black to ground. I get the 560 ohms when I disconnect the sensor and test back to the sensor. But when checking for ground does the connector need to be plugged back in. Because I am getting the ground from the ECM at the connector but not from the connector back to the sensor. Any help would be greatly appreciated.

 

[pede58]

"Will turn over but will not crank"

This confuses me a little, Ok sometimes it doesn't take much... are you saying the starter spins but not the engine?

 

[rkersh409]

Motor turns over and tries to start but will not. Sometimes it will start and run for about 1 second and dies. But mostly starter is turning the motor over.

 

[rkersh409]

Does anyone know what the voltage is supposed to be at the crankshaft position sensor?

 

[fswan]

Not sure of the voltage but this should be the resistance:

 

[rkersh409]

Thanks I am getting the 560 ohms yellow to white and open black to ground towards sensor. On the connector to the ECU I am only getting 2.5 volts with key on. Seems like I should be getting 12V. Also .4 ohms to ground back to ECU

Per the wiring diagram It shows the sensor is a NPN transistor inside the magnet. I took my meter and set it to diode and got the .7v like I should yellow (base) to white (collector) but nothing yellow (base) to black (emitter). This also tells me I have an open common/ground.

http://asap911.com/wp-content/uploads/2012/04/2012-Polaris-Service-Manual-WIRE_DIAGRAMS_2012.pdf