wipers do not work on high speed

[jigfeett]

Make

mitsubishi

Model

Endeavor

Year

2004

Miles

118000

Engine

3.8

Hello,
2004 Mitsubishi Endeavor
118000 miles 3.8 automatic it needed a water pump so I did the repair including timing belt and tensioner and all accessory belts plus valve cover gaskets and tube seals.
I picked this car up a few weeks back and as I am going through it checking things out I found the wipers do not work on high but all other speeds are working, any thoughts on this is appreciated.
I have not had time to check anything out.

 

[jigfeett]

? Nobody has run into this situation?
I plan to do a little troubleshooting this weekend and will report back next week.

I was hoping maybe someone had the same issue but all my searches have been inconclusive.

I will start with Alldata and go from there and the basics to start.
Thanks

 

[grcauto]

Can you check the stalk switch is working? When you switch to high speed do they quit or just stay slow?

 

[grcauto]

https://www.autozone.com/repairguid...nd-Washer-Wiring-Diagram/_/P-0996b43f8037d73a

 

[jigfeett]

Hello, thank you.
I did not have time to check it but when I switch to high they stop.

 

[grcauto]

Easiest way to check this is the take and apply B+ to the y/r (yellow wire with red tracer) at the wiper motor connector. It should go to high speed. If not the motor needs to be replaced. Best place to start.

 

[jigfeett]

Thank you I can use my power probe to test that and or monitor
Thanks

 

[jigfeett]

I did a little checking and found that the wipers do work on high if I hold the lever up but when turned to high they just stop.
I see on the diagram there is a switching relay in or around the front ecu, I tried a known good front ecu but there was no change.
At this time I can rule out a defective wiper motor.

 

[nickb2]

the wipers do work on high if I hold the lever up

That pretty much seals the deal. You need a new wiper multi function lever/switch.

 

[jigfeett]

Thank you I will check on a new one

 

[grcauto]

Thank you I will check on a new one

Junk yard.

 

[jigfeett]

I will update when I get another switch.

 

[jigfeett]

Still haven't had time to go junk yarding I hope to go soon