Move the right hand stalk downward. Refer to your owner's manual for exact details.
Thanks Bob, but it’s the actual relay I have been looking for. I can hear the relay clicking somewhere around the fuse box area so I removed the cover. Regrettably it only reveals a PCB and some soldered terminations. There’s very little information online regarding a malfunctioning rear wiper. But I have had the motor out and powered it up using a separate power source so I know that this is ok. I need to locate the relay to check it’s supplying power on the switched terminal.
That's also from a UK MHD car, so who know if the relays are the same for North American cars? Still looking for more info.
Here's a look at relays from Evilution: https://www.evilution.co.uk/info/sam_unit_fuse_box.htm
Evilution is UK as well! They don't specify what year or sub-species these photos are from.
They use a different number for the relay also, it is #3 on Evilution's photos & description... but it is in the same physical location as the one referenced at fq101.
Evilution also gives the connector and pin number controlled by the relay... handy troubleshooting info.