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Unread 02-16-2014, 08:16 PM   #1
MarvinTm
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Tow/Haul button and question

so i read Manual and i shows a tow/haul button and a light for the gas instrument cluster but not for the CRD.
question is this
1: is it auto for the CRD and
2: if it is will it run electric trailer breaks
thanks

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Unread 02-16-2014, 08:21 PM   #2
JeepN4KC
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Quote:
Originally Posted by MarvinTm View Post
so i read Manual and i shows a tow/haul button and a light for the gas instrument cluster but not for the CRD.
question is this
1: is it auto for the CRD and
2: if it is will it run electric trailer breaks
thanks
1. Doubtful

2. No. You have to wire in a brake controller to run trailer brakes.
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Unread 02-16-2014, 08:23 PM   #3
xSoFx
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To add to that, if you have the towing package I believe there is a harness pre wired for a brake controller.
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Unread 02-16-2014, 08:43 PM   #4
MarvinTm
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how could i tell if it is prewired?
my trailer right now does not have them but our next will.
thanks all.

ya the tow/haul is strange as the CRD has the coil in the spot for the tow/haul light .
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Unread 02-16-2014, 08:52 PM   #5
JeepN4KC
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Quote:
Originally Posted by xSoFx View Post
To add to that, if you have the towing package I believe there is a harness pre wired for a brake controller.
There is nothing "prewired" with the towing package as far as a brake controller. You have to wire everything in. I have the towing package but I installed my brake controller.

Reference this post in my build for a walk through:

http://www.jeepforum.com/forum/f67/m...l#post15980009

The only thing that is already there is a green power wire (that sends power to the hitch harness) to the left of the brake switch.
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Unread 02-16-2014, 10:17 PM   #6
MarvinTm
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thanks
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Unread 02-17-2014, 03:13 AM   #7
james_2k
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id guess the crd doesnt need a tow mode because it is fine to do it in normal gear ranges. what with it having all the torque low down.
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Unread 02-17-2014, 04:05 AM   #8
caulk04
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Seems that way. The CRD already runs high in it's RPM range due to the strange gearing DCX paired it with so a tow/haul wouldn't make sense.
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Unread 02-17-2014, 06:46 AM   #9
jaje
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You don't need a tow / haul program with the transmission as the CRD will handle any heavy loads without a problem. It's gearing in the tranny is more apt for a gas engine so on a diesel engine it runs the RPMS unnecessarily high and unfortunately really reduces its cruising speeds to 75 mph max or less (runs near 3k at 75-80 mph).
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Unread 02-17-2014, 12:22 PM   #10
MarvinTm
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thanks all.
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