Can I get a diagram of windshield washer circuit?

Hello,

See diagram below for WWS system layout.

Please first check that the washer fuse 9, 10A, on the dash fuse board is still intact.

https://fuse-box.info/toyota/toyota-mr2-spyder-w30-1999-2007-fuses

How to check a fuse:
https://www.2carpros.com/articles/how-to-check-a-car-fuse

If the fuse is good next check that you have 12V, with ignition on, at pin 2 at the washer pump. This is the blue wire.

How to check for 12V using a test light or voltmeter:

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester
and
https://www.2carpros.com/articles/how-to-use-a-voltmeter

If no 12V is present, then next check that the blue wire between fuse 9 and the washer pump is intact.

How to test a wire:
https://www.2carpros.com/articles/how-to-check-wiring

If 12V is present at pin 2 at the washer pump, next check that a ground is applied to pin 1 when the washer switch is activated. If no ground is activated when pulling the washer switch then next check the wire, blue/yellow, between the pump and washer switch.

Hope this helps.

Cheers, Boris

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