[QUOTE=pizzaguy;936776]1) Start car, leave it running.
2) Insert leads into meter, turn it on and set to DC volts, 20 volt scale if not auto-ranging.
3) Hold black or common/ground lead of meter on a piece of chassis metal (there is a ground bolt on the wheel well wall in the vicinity of the top control module).
4) Press red lead into the connector, pin 10 (12 volt pin); meter should read around 12 volts. (This is to verify you have the meter set up rigth. DO NOT PROCEED until you get a 12 volt indication.)
5) Move meter lead to pin 7
... a reading of over 4.5 volts means the switches are not properly bypassed OR the wiring to switches is bad (as in "open", the opposite of a short).
... a reading of less than .5 volts means the switches are bypassed or closed and thing should work.

Any voltage over 4.5 volts (and perhaps as low as 1 volt) tells the PTCM to NOT run the pump.
Any voltage from about .5 to around 2 or 3 volts is a "Not valid", the pump may or may not run.
Any voltage under about .5 or .6 volts tells the PTCM it's OK to run the pump. You MUST have less than .5 volts on that pin.[/QUOTE

hi. I have tried to test it but it is not giving any reading what so ever ?