Help!! If anyone knows an answer?? I have what I think is an electrical problem...I'm getting power to the solenoids on the pump but no power to the rest of the sensors on the pump? Any help would be appreciated, thanks!
Let's start with the machine's serial number. What are your symptoms? Behind the seat are the controllers. Ignore the top one (Engine Controller) and its LED light . The bottom one (PVC) has an LED also. What is the LED doing when you key on? If you short the pins on the diagnostic connector (located behind the right armrest) as shown below and then key on, what codes do you have blinking on the PVC controller, if any.
Serial # FF490ES020299 When cranking the machine feels like hydraulic is pulling on motor without touching any controls, will still move but bogs down, first thought was fuel problem, but then found out, power to the 2 solenoids on top of the pump but not to the angle sensor or other sensors on the pump from what I can tell.. I haven't seen the connector you're showing, i will look... Thank you for your response any help would be appreciated...
With the key on the EMC and PVC are flashing red...starts and moves a little bit but bogs down... getting fire to the two solenoids on top of pump but not to any of the sensors...
Ignore the EC. With the key on, is the PVC's light flashing once a second? Did you install the jumper, then key on to get flash codes?
No sir they were flashing with out doing that
Are they supposed to flash red or green
A normal condition is when the LED flashes once a second when the key is turned on. That says there is no issue with the PVC at that moment. If the LED does not light or it is on steady, then there is an issue. It might flash out a numerical code if there is an active issue. If there is a stored code, then installing the jumper, then keying on, the codes will come out in a flashing numerical sequence (usually a 2 digit number). Red. If you do not have the 5 volt reference voltage to any of the sensors, then you most likely have a short to ground in the wiring or one of the sensors has a short, pulling the 5 volt reference down. Worst case is a bad PVC, but I do not suspect that if it is flashing once a second. The blink codes might lead to which circuit is the culprit. Otherwise, all the sensors on the machine's hydraulic system need to be unplugged to see if the 5 volt reference comes back. Then plug them in one at a time to see if the voltage drops. the sensor that was plugged in that caused the voltage top drop would be the culprit. Do note, this procedure will not work if there is a short to ground in the wiring. Check your messages for some information.