The tank that the pumps are in are located between the fender and the engine compartment. The manual says to access them from the wheel well, remove the tires and remove the plastic fender liner. I need to do it too, my front pump is not working but my rear one is.
They have a step by step, you first remove one of the hoses on the bottom of the tank, let it drain into a clean bucket, then you can either remove the tank or just remove the offending pump, the front one is the one that is the lowest. If you remove the tank you need to remove the spigot or filler first, from the pics I'm not sure if it's a turn and pull or just a pull. I was going to do it this weekend but it looks like the refresh project I have with HP is going to run thru the weekend into tues.
My main concern is that it is the pump, thats fairly good price wise, I'm going to check the connectors first and make sure it's not the stalk on the column, thats a tad pricey and more involved I think.