96 Tahoe rear wiper no delay

[Blue 04 Z71]

my 96 Tahoe rear wiper is either on or off. Doesn’t matter if I have the switch on delay or not. Does that should like a motor or switch problem?

 

[east302]

Here are the diagnostics for a 98. It’s probably the same for 96, maybe it will help.

 

[OR VietVet]

Sounds like the motor needs the correct info/inputs to work properly. Kind of like a blower motor with a resistor problem. The diagnostic chart above should find the problem.

 

[Blue 04 Z71]

Awesome, thanks! I’m assuming a j-34142-b is a standard test light and nothing fancy?

 

[east302]

Awesome, thanks! I’m assuming a j-34142-b is a standard test light and nothing fancy?

That’s what it sounds like.

 

[OR VietVet]

Hell of a name for a 12 volt test light. I gotta get me one of those special J-34142-B testers.