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#728083 - September 21st 2017 11:46 am OEM Cruise control G20 van help Please.  
Joined: Sep 2017
Posts: 21
Metal Offline
stranger
Metal  Offline
stranger

Joined: Sep 2017
Posts: 21
Stockton California
Hello everyone.
I've been looking at the that little button and toggle switch on the end on my turn signal for long enough it's time to get them working. I'm not even sure if my van has cruise control or someone just installed a stalk with the controls on it.

Has anyone got a diagram of the components used in the OEM cruise control? Or if you could post pictures of all the stock parts in place on the van that would be even better.

I'm not sure what I'm looking for in order to go over the system and identify the source of it not working.

I'm going to pick n pull today to grab a tow bar I spotted for the van so I could get the parts while I'm there. We have a tone of G vans at our local yard.

#728084 - September 21st 2017 12:08 pm Re: OEM Cruise control G20 van help Please. [Re: Metal]  
Joined: Sep 2017
Posts: 21
Metal Offline
stranger
Metal  Offline
stranger

Joined: Sep 2017
Posts: 21
Stockton California
Ok so after some digging I found this diagram. It's not that well drawn and it kind of hard to follow so any pictures would still be good.

I also found the following instruction on testing if the module is bad.

- At the cruise module, test the following wires for voltage. If all wires test okay, the cruise module is bad. If you do not get the appropriate input from one of the switches, replace that switch. Test with the ignition key on and make sure the Gauges fuse is good. Also make sure you have vacuum to the cruise servo.

Gray - voltage with cruise switch ON
Gray/Black - voltage with cruise switch ON and brake pedal at rest, voltage goes away with brake pedal depressed.
Dark Green - voltage with Set button depressed.
Dark Blue - voltage with Resume/Accel button depressed.

Attached Files image.gif
#728197 - September 25th 2017 4:04 pm Re: OEM Cruise control G20 van help Please. [Re: Metal]  
Joined: Sep 2017
Posts: 12
JAGI410 Offline
stranger
JAGI410  Offline
stranger

Joined: Sep 2017
Posts: 12
MN
In my troubleshooting of my system, I found a post somewhere saying that 90% of failures are in the cruise switch itself. I bought a new one for $24 shipped from ebay. Sure enough, as soon as I pulled the switch from the steering column, I could see the frayed wires. I'd check that first. The wires in the stalk are only for the cruise, so if that's connected to anything under the dash, chances are you have cruise!

Otherwise, this resource is quite valuable: http://www.elcaminocentral.com/showthread.php?t=27191

How to replace cruise switch: https://www.youtube.com/watch?v=RhtHX9lOgy8

Good luck!


Jason
1984 Chevy G20
#728335 - September 28th 2017 4:17 pm Re: OEM Cruise control G20 van help Please. [Re: JAGI410]  
Joined: Jun 2017
Posts: 2
efinmirical Offline
stranger
efinmirical  Offline
stranger

Joined: Jun 2017
Posts: 2
rochester, ny, usa
Thanks for that elcamino link, JAG...I was just trying to troubleshoot an '89 that I recently picked up. This was perfect. Thank you a lot!

#728336 - September 28th 2017 4:19 pm Re: OEM Cruise control G20 van help Please. [Re: Metal]  
Joined: Jun 2010
Posts: 12,578
frscke1 Offline
frscke1  Offline


Joined: Jun 2010
Posts: 12,578
Van Diego California
Welcome to the site efinmirical ....


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