[Dr Sparks]

Pump issue:
It's very common that the nozzels get impacted with concentrations of the gunk that grows in the w/w fluid tank. Sometimes they can be reamed out with a tiny drill bit; usually though it's time to R&R both spray nozzels.

No pulse wiper:
With wiper switch in delay pulse mode, term B at W/W motor (gray wire) should show battery voltage.

At Term F (pink wire) there should be a voltage relative to where you've set the delay switch. If this term is cold look for either an open delay set switch (R&R with new part) or an open due to physical damage on thepink wire run between the switch and motor. A resistive connector body connection can novoltage this circuit, but the amps used here are very low, hence it's unlikely. But not impossible.

Please tell me what you find.