The Hartschiere did indeed carry a standard. Karl Staudinger (Geschichte des kurbayerischen Heeres, Vol. 1 pg.148 footnote 3) indicates that when formed in 1669, the Hartschiere inherited the standard of the old “Korbiner”. He states that little is known of its appearance, but he speculates that, “…on one side of the silver brocade cloth was the Madonna, since Maxillian I, “the Patrona Bavariae”, in a red silk dress with a white lined blue cloak, with a gold crown on her head and the septer in her hand. On the other side the Arms of Kurbayern – all in rich silver embroidery.”
In Vol.II-1, page 17, Staudinger indicates that the standard was carried through 1728 when a new one was issued,
On the other hand, August Kühn is his booket, “The Army of Max Emanuel, Elector of Bavaria” describes and illustrates an entirely different standard for the Hartschiere in 1701. “A standard of yellow damask with golden fringes and rich golden ornamentation. On the obverse a curcifix with Jesus and in the four corners EME with Electoral cap. On the reverse the Bavarian arms with the order of the Golden Fleece under the Holy Ghost.” Unfortunately, as is usual with Kühn, his source is unknown.
Staudinger, Vol II-1, pg 17 footnote 6, indicates that in 1702 two colours were issued to the Harschiere, but that these were kettledrum colours. Perhaps, Kühn confused these for a new standard.
I hope this is helpful.