60 series detroit- No jake brake/cruise control

amishdonkeys · 10-09-2011, 03:13 AM

Have a 1995 379 Pete w/ a 12.7L 60 series detroit. Jake brake and cruise control doesn't work.

There is power to dash switchs for jake and cruise.

Power to the clutch sensor.

Clutch sensor was tested and checked out OK.

Anybody know what next I could try?

Don't have a owners manual for truck. So just going by fuse box under dash. There isn't a fuse for jake or cruise. Is there a breaker somewhere else I'm not looking at?

Thanks

bena · 10-09-2011, 07:33 AM

Check the pressure switch from the brakes. Sometimes it is the same as the brake light switch, sometimes it is separate.

timbruun · 10-09-2011, 11:03 AM

Did they used to work and stopped working at the same time? Is it the same problem for them both for sure?

clinton491 · 10-09-2011, 12:53 PM

Check the switch at the throttle pedal also clutch may not be contacting switch all the way.

amishdonkeys · 10-09-2011, 05:26 PM

I bought the truck right before harvest. They never worked from the day I bought it.

Throttle pedal switch? Is it on the backside of the pedal on a Pete where that little roller is? That gives the engine rpm if I play with it

Where find brakes pressure switch? Under cab where the brake comes through cab?

I've been told the jake and cruise is usually "talk" to each other. And if one doesn't work, the other won't work either. So kind of hoping this be fixing both problems with one fix.

Thanks for the info.

thedm4778 · 10-09-2011, 05:49 PM

Normally its brake switch or clutch switch they are a micro switch I think you can adjust .the throttle is a rheostat if is a electronic engine .

Itzenfarms · 10-09-2011, 08:11 PM

It's probably the paddle switch on the front of the clutch pedal.

amishdonkeys · 10-09-2011, 08:56 PM

Its a elctronic engine. Throttle pedal has a elct sensor on back of it. Play with that and the engine rpm changes.

Took clucth paddle switch to truck shop and they tested it. They said it was working properly.

keystone · 10-09-2011, 10:44 PM

Truck shop that works on them should be able to plug in diagnostic tool to see if it has error codes to point in a direction. Ours doesn't have Jakes but cruise quit diagnostics did not point to anything had power to switch and they all worked, traced it down to a broken wire in the ecm module connection. Needed a tool of some sort to reconect the wire but it fixed it.

amishdonkeys · 10-10-2011, 12:15 AM

I'll see for a switch on brake pedal somewhere.

Next step will most likely take to truck shop.

Thanks

10-09-2011, 03:13 AM	#1 (permalink)
amishdonkeys Senior Member Join Date: Mar 2009 Location: East Sask Posts: 151	60 series detroit- No jake brake/cruise control Have a 1995 379 Pete w/ a 12.7L 60 series detroit. Jake brake and cruise control doesn't work. There is power to dash switchs for jake and cruise. Power to the clutch sensor. Clutch sensor was tested and checked out OK. Anybody know what next I could try? Don't have a owners manual for truck. So just going by fuse box under dash. There isn't a fuse for jake or cruise. Is there a breaker somewhere else I'm not looking at? Thanks

10-09-2011, 07:33 AM	#2 (permalink)
bena Senior Member Join Date: Oct 2008 Location: west edge of the RRV Posts: 337	Check the pressure switch from the brakes. Sometimes it is the same as the brake light switch, sometimes it is separate.

10-09-2011, 11:03 AM	#3 (permalink)
timbruun Senior Member Join Date: Sep 2010 Location: Millet, AB Posts: 305	Did they used to work and stopped working at the same time? Is it the same problem for them both for sure?

10-09-2011, 12:53 PM	#4 (permalink)
clinton491 Member Join Date: Jul 2011 Posts: 52	Check the switch at the throttle pedal also clutch may not be contacting switch all the way.

10-09-2011, 05:26 PM	#5 (permalink)
amishdonkeys Senior Member Join Date: Mar 2009 Location: East Sask Posts: 151	I bought the truck right before harvest. They never worked from the day I bought it. Throttle pedal switch? Is it on the backside of the pedal on a Pete where that little roller is? That gives the engine rpm if I play with it Where find brakes pressure switch? Under cab where the brake comes through cab? I've been told the jake and cruise is usually "talk" to each other. And if one doesn't work, the other won't work either. So kind of hoping this be fixing both problems with one fix. Thanks for the info.

10-09-2011, 05:49 PM	#6 (permalink)
thedm4778 Junior Member Join Date: Oct 2011 Posts: 5	Normally its brake switch or clutch switch they are a micro switch I think you can adjust .the throttle is a rheostat if is a electronic engine .

10-09-2011, 08:11 PM	#7 (permalink)
Itzenfarms Senior Member Join Date: Aug 2011 Location: Nebraska Posts: 320	It's probably the paddle switch on the front of the clutch pedal.

10-09-2011, 08:56 PM	#8 (permalink)
amishdonkeys Senior Member Join Date: Mar 2009 Location: East Sask Posts: 151	Its a elctronic engine. Throttle pedal has a elct sensor on back of it. Play with that and the engine rpm changes. Took clucth paddle switch to truck shop and they tested it. They said it was working properly.

10-09-2011, 10:44 PM	#9 (permalink)
keystone Senior Member Join Date: Jun 2005 Posts: 273	Truck shop that works on them should be able to plug in diagnostic tool to see if it has error codes to point in a direction. Ours doesn't have Jakes but cruise quit diagnostics did not point to anything had power to switch and they all worked, traced it down to a broken wire in the ecm module connection. Needed a tool of some sort to reconect the wire but it fixed it.

10-10-2011, 12:15 AM	#10 (permalink)
amishdonkeys Senior Member Join Date: Mar 2009 Location: East Sask Posts: 151	I'll see for a switch on brake pedal somewhere. Next step will most likely take to truck shop. Thanks

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