The Hockeyroos and Great Britain have played their third draw in Perth, meaning Sunday's sixth and final Test will decide their series.
Georgie Parker's 31st-minute deflection helped the Australian women to bounce back from a one-goal deficit only one minute after halftime.
After a delayed start due to a watering failure, Hockeyroos forward Parker replied to Sarah Haycroft's late second-quarter strike (29th minute) and the scores remained deadlocked for the remainder of Saturday's fifth Test
Australian coach Adam Commens said he thought his team's intensity levels were a little bit low in the first half.
"We had a late start and the heat contributed to our slow first quarter. We built into the game nicely and created ourselves enough chances to score. However, it was a very scrappy game and we can certainly be a lot of better.
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"Throughout the series, we have been working hard on our fitness, training and doing gym throughout the matches. It has been very much like a training week for us, so the girls are starting to get a little tired towards the end of the tour, and I'm sure Great Britain are starting to feel it as well.
"We have named a strong team in Sunday's match and I'm sure Great Britain will also be wanting to finish off strongly. I anticipate tomorrow to be a very similarly hard-fought game. We will look to execute our details better and we will be treating it as a final and taking it very seriously," Commens said.
It was an important milestone match for Britain's captain Kate Richardson-Walsh, who broke assistant coach Karen Brown's playing record, making her 356th appearance.
The sixth Test on Sunday will be played from 3pm at the Perth Hockey Stadium. With three draws already in the series, the two nations are locked at 1-1.
