No, I don't..Wally unit only measures low side, not high.
..but , a look at the eyesight would be better..many bubbles mean low refrig.

Here is the tricky part:
The low fan is only supposed to come on when the a/c system is under a High Thermal Load ..meaning it is possible in cool ambient temps for the system not to call for low fan...the best time to check is on a Hot/Humid day with a/c on full and at a slightly high idle. At idle , there is little air movement across the condenser and the high side pressure should get to fan sw cut-in spec..if not , the refrigerant change is low OR you have a bad sw. [if the fan ran when you jumpered the sw.] The correct way to tell is w/gauges , but the above will also work for those w/o gauges. All the fan does is it blows additional/aux air across the condenser when the system is being taxed and that additional aux airflow lowers the extreme high side pressures caused by High Thermal Load. It is just aux airflow and is usually not demanded when the car is moving b/c the car movement supplies the required airflow. One usually will see this fan when a/c is on and car is in stop/go traffic. [ High Thermal Load condition example]
Remember this tip:
A NO LOW FAN on this chassis is the FIRST indicator [ in almost all cases] of low refrig charge. The fan circuit verification test is the jumper at the pigtail, but that does not isolate if the problem is sw or low refrig...99% of the time it is low refrig.
A properly operating system will be a cycling low fan at idle on a normal sunny/hot day. The fans aux airflow just keeps the high side pressures in check......that is it's only function and it never comes on if the a/c is not on.
...and if it is NOT a hot day [ high ambients], do not expect to automatically see a low fan . If the system is not burdened , it is not needed and will not come on by design. [ meaning high side fan pressure switch cut-in spec not satisfied/reached, so no demand]

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A Dalton