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2000 Isuzu Trooper S 3.5l DOHC - Scheduled for heart surgery
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Windshield Wiper/Washer System - General Description

"The circuit consists of the starter switch, windshield wiper & washer switch, windshield wiper motor, windshield washer motor, and alarm & relay control unit.
When the windshield wiper & washer switch is turned on with the starter switch on, the battery voltage is applied to the wiper motor to activate the wiper.
The washer motor squirts glass cleaning fluid while the washer switch is being pushed. The alarm & relay control unit relay is used to control motion of the wiper."

Motor vehicle Font Parallel Engineering Auto part


Sometimes pulling the steering wheel is the fun bit of the challenge! 馃槣
 

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2000 Isuzu Trooper S 3.5l DOHC - Scheduled for heart surgery
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23 Posts
After a bit more research (my apologies) it appears you have the right idea.

The Gen 1 uses a relay within the clockspring/stalk assembly that communicates directly with the relay in the wiper motor; apart from a fuse there's no 'middleman'.
Interestingly, 93-95.5 did have a relay located in the engine compartment fuse box. Though it would have the same rating/function regardless which switch was installed.

Also, it looks like there was only one motor option, so it may be a case of 'a motor is a motor is a motor' and they intalled it in all vehicles making the CS assembly the only upgrade that would need changing. Here's hoping though, right?馃お May want to check the motor part number from your vehicle & the donor vehicle just to ward off any bad juju.
Honda used parts #8-97146-293-0 & #8-97118-073-0 (discontinued). Isuzu (obviously) uses the same.

Just in case, here's the steering wheel removal guide. It's for a Gen 2 but should be fairly close. Hope I didn't muddy up the waters more & I hope this helps. Please share what you end up finding out!

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Joint White Human body Jaw Organism
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Registered
2000 Isuzu Trooper S 3.5l DOHC - Scheduled for heart surgery
Joined
23 Posts
You Betcha!

I did some looking at various part numbers, fuse & relay block details, and then a little historical research on intermittent wipers. My local library offers AllData access, which made looking up wiring diagrams handy. (y)

Basically the switch/clockspring combo come in three variations:

Insect Toy Arthropod Pest Cable
w/o Intermittent Wipers; w/o Cruise Control
Toy Eye glass accessory Font Eyewear Auto part
w/ Intermittent Wipers; w/o Cruise Control
Insect Arthropod Audio equipment Font Pest
w/ Intermittent Wipers; w/ Cruise Control
(Stanard Motor Products - eCatalog)

All the relay on the motor does is 'listen' for the power on/off instructions from the relay inside the switch combo unit. Obviously, grab the entire combo unit, not just the spring ( I did it once for an old Volvo and it was a silly mess!) Pretty slick and simple. Three springs, one motor to rule them all!

So just a bit of cross referencing from different sources....and not a lot going on this weekend.馃槃
Best of luck!
 

Registered
2000 Isuzu Trooper S 3.5l DOHC - Scheduled for heart surgery
Joined
23 Posts
Holy buckets! You're living in the world of Murphy's Law. I hope you get some breathing room soon.

Sorry to hear about the switch. I can do a little digging in the meantime to see how it can be tested further. Keep this post updated and I'll continue to follow along, too!

Best of luck & to better mechanical days ahead!
 
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