Re: New XM owner in Oregon USA
Posted: Wed Nov 06, 2019 9:48 pm
Thank you , I sincerely do appreciate the effort you've put in. I was able to download and print all attachments provided which I note are far superior in clarity to anything else I’ve found (and in English to boot). I'm tracking re: the component numbers (e.g. 755 = fuel pump) but I'm still stumbling on the diagram symbology, e.g. determining from the diagram alone that pin 3 and 5 feed the pump based upon only the circuit diagram.
I found document 560-00/20 in the “Pepon” link you provided above. Using google to translate the French, my understanding of the circuit symbology is overlaid on our fuel pump example. Thank you in advance for educating me on reading the circuit symbology or perhaps pointing me to a spot where this has been covered before!
Anyway, I made the following observations last night:
-Key off, reading 0.2 volts between fuel pump pins 3 and 5.
-Key on, immob code entered (green light on), still reading 0.2 volts between fuel pump pins 3 and 5.
-Cranking starter, reading 10.5 volts between fuel pump pins 3 and 5.
Resistance between pin 5 and battery negative terminal = 47 ohm.
I applied 13 volts to fuel pump pins 3 and 5 with a test battery (vehicle battery disconnected) and no noise or vibration observed from the fuel pump, no fuel coming out.
This leads me to believe that the fuel pump itself is faulty and needs to be replaced before further testing. Part number appears to be 337631 and/or 9600697280, it is Jaeger brand. I’ll work to source a fuel pump but it will take weeks or more to have one sent here from Europe. I would prefer to buy new if possible, please let me know if you have any recommendations on a supplier who ships to the USA.
Thank you again,
Mike
I found document 560-00/20 in the “Pepon” link you provided above. Using google to translate the French, my understanding of the circuit symbology is overlaid on our fuel pump example. Thank you in advance for educating me on reading the circuit symbology or perhaps pointing me to a spot where this has been covered before!
Anyway, I made the following observations last night:
-Key off, reading 0.2 volts between fuel pump pins 3 and 5.
-Key on, immob code entered (green light on), still reading 0.2 volts between fuel pump pins 3 and 5.
-Cranking starter, reading 10.5 volts between fuel pump pins 3 and 5.
Resistance between pin 5 and battery negative terminal = 47 ohm.
I applied 13 volts to fuel pump pins 3 and 5 with a test battery (vehicle battery disconnected) and no noise or vibration observed from the fuel pump, no fuel coming out.
This leads me to believe that the fuel pump itself is faulty and needs to be replaced before further testing. Part number appears to be 337631 and/or 9600697280, it is Jaeger brand. I’ll work to source a fuel pump but it will take weeks or more to have one sent here from Europe. I would prefer to buy new if possible, please let me know if you have any recommendations on a supplier who ships to the USA.
Thank you again,
Mike