bench testing wiper multifunction switch
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Junior Member
Joined: Oct 2009
Posts: 49
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From: Winston Salem, NC
Car: 1990 CAMARO RS
Engine: 350 - replaced 305 with 350
Transmission: 5 SPEED
Axle/Gears: STOCK [?]
bench testing wiper multifunction switch
is there a way to bench test a wiper multifunction switch to be sure it is ok before installing it...one on '90 Camaro is apparently bad and I have one in tool box that I'll use if I can be sure it is ok...thanks
Supreme Member
Joined: Jan 2006
Posts: 3,341
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From: Mooresville NC
Car: LOWERED ♦ CRIMSON METALFLAKE
Engine: ► 400 KUBES ◄
Transmission: 765R4
Axle/Gears: EATON POSI 4.56
Which Switch Is Witch
Connect one lead of an ohmmeter to the White wire of the switch and keep it there for the entire test.
Connect the other (which I will call it the moveable lead) lead of the ohmmeter to the pink wire.
When you press the washer lever you should see 0.
Turn the switch to the HI position.
The ohmmeter should indicate between 20 and 30 K.
Now connect the moveable lead of the ohmmeter to thegray wire.
The ohmmeter should indicate 0.
Ditto for the purple wire.
Now turn the switch to the OFF position.
Now connect the moveable lead of the ohmmeter to thegreen wire.
The ohmmeter should indicate 0.
Now turn the switch to the PULSE position.
Now connect the moveable lead of the ohmmeter to the pink wire.
The ohmmeter should indicate 0.
Ditto for the gray wire.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
My Brakes Don’t Work AT ALL When The Car Is Sliding On It’s Roof
Connect the other (which I will call it the moveable lead) lead of the ohmmeter to the pink wire.
When you press the washer lever you should see 0.
Turn the switch to the HI position.
The ohmmeter should indicate between 20 and 30 K.
Now connect the moveable lead of the ohmmeter to thegray wire.
The ohmmeter should indicate 0.
Ditto for the purple wire.
Now turn the switch to the OFF position.
Now connect the moveable lead of the ohmmeter to thegreen wire.
The ohmmeter should indicate 0.
Now turn the switch to the PULSE position.
Now connect the moveable lead of the ohmmeter to the pink wire.
The ohmmeter should indicate 0.
Ditto for the gray wire.
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
Happy Racing!
◙◙◙◙◙◙◙◙◙◙◙◙◙◙◙
My Brakes Don’t Work AT ALL When The Car Is Sliding On It’s Roof
Thread Starter
Junior Member
Joined: Oct 2009
Posts: 49
Likes: 0
From: Winston Salem, NC
Car: 1990 CAMARO RS
Engine: 350 - replaced 305 with 350
Transmission: 5 SPEED
Axle/Gears: STOCK [?]
Re: Which Switch Is Witch
Thanks for your time, response and the great information NINA
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