2004 GX470 Wipers not working. BCM-Wiper relay? (1 Viewer)

[Bannerp]

New member 1st post. (Yes I have used the search can't find an answer)

Randomly my wipers quit while my wife was driving it a few weeks ago.

I've checked all fuses ( not just wiper circuit) then taken the cowl panel off and tested for power @ the motor. Have 1 wire powered constant. So I used test leads and fed the motor power and I have high and low. So I assumed the switch was bad. Ordered 1 from rock auto and installed and wipers are still not working.

My question has anyone ever had the wiper relay fail? ( all power for switch runs thru relay) or a Body Control Module? I'm at a loss and wiring is not my strong suit. I haven't checked continuity from switch to relay yet but plan too.

 

[SBANGLICO]

You're on the right track. Just keep breaking down the circuit in pieces to test. You have power to the wipers and they work. You have a functioning wiper switch (assuming because it's new). You need to test the wires between and that relay.

It's tedious work, but take it methodically and you'll find it. I would head to that wiper relay first. If that's good, then I'd go for the wiring in between all components.

 

[Bannerp]

You're on the right track. Just keep breaking down the circuit in pieces to test. You have power to the wipers and they work. You have a functioning wiper switch (assuming because it's new). You need to test the wires between and that relay.

It's tedious work, but take it methodically and you'll find it. I would head to that wiper relay first. If that's good, then I'd go for the wiring in between all components.

Put a used oem relay of fleabay and fixed

 

[gifu]

Where’s the wiper relay?