find code# from sheet 1 on sheet 2, compare value on sheet 1 with value on sheet 2

[BlakeLee]

I've used excel, but not to accomplish anything like this, so a newbee. I know excel can do this, but no idea how. The first step is finding wrong code# for the values listed on Sheet 1. The values for the codes on sheet 1, must be between the values listed on 2nd sheet with the same code.

code# is a series of number & letters (example: 1AAX231)
code will always be in col P and value will always be in col X
This is what I want to do: Take the code and value from 1st sheet (2 cells) find the code on 2nd sheet and compare 1st sheet value to =>,=< values on 2nd sheet.
I'd like to be able to paste a query page onto the 1st sheet of the workbook

use code# on 1st sheet col P and value from 1st sheet col X
find matching code in 2nd sheet col G
check the value from 1st sheet against the values on the 2nd sheet col H & col J.
The value from 1st sheet must be =or > than col H & =< than col J
The value on 1st sheet has to be between the 2 values listed on 2nd sheet. If it isn't then I'd like to highlight the code# on the 1st sheet (col P) or return False in col Q (anything that indicates it's the wrong code will do)
[do I need to take Col H and Col J on 2nd sheet and make them one entry/one cell?]