intermittent issue, windshield wiper stops working.

[fastscirocco]

intermittent issue, windshield wiper stops working.
Is there a computer module for this or is it a failing switch?

 

[Fless]

Vehicle details? Year, make, model, special options?

 

[fastscirocco]

2014 GMC Yukon XL Denali

 

[Spinner23]

Vehicle details? Year, make, model, special options?

I’m not the OP, but my new-to-me 2011 SLE just did the same thing last week, when it was raining. Ugh.

 

[exp500]

Check the diagrams for stop switch or park switch. Older models had a circuit board in wiper motor housing that caused similar issues.

 

[mikez71]

Relays on fusebox pcb.. Not saying that's the issue, but could be..

 

[exp500]

Relays on fusebox pcb.. Not saying that's the issue, but could be..

View attachment 469527

Diagram has lotsa useful info- Grounds at motor, Notes, Component 15339058, not sure if connector or board.
Hopefully someone thats seen similar will jump in.

 

[mikez71]

Component 15339058

thats your wiper stalk.

 

[89Suburban]

Relays on fusebox pcb.. Not saying that's the issue, but could be..

View attachment 469527

Yup, wouldn't hurt to swap some relays around to see if that is it. Or to check the blades on them for corrosion. That's how I found an intermittent crank issue that popped up on me back in January. I replaced it with a new one and knock on wood it's been fine since.

What did you do to your NNBS GMT900 Tahoe/Yukon Today?

well....oil leak still happening. guess its either rear main or oil pan gasket. damn it.

www.tahoeyukonforum.com

 

[mikez71]

Unfortunately, I think these relays are likely soldered into the fusebox.

 

[fastscirocco]

I believe I have found the cause of the many electrical gremlins I've experienced, tonight I found a very loose ground wire on the firewall. I cleaned the connection and tightened it. I will be doing over 5 hours of driving tomorrow and will report back afterwards. Background I had recently replaced the brake pedal position sensor and the wiper/turn signal stalk, and continued to have issues.