Power...Comfort...BLOWER! Or, how I quit changing shift points with my knee. - JeepForum.com
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Unread 03-06-2011, 02:31 PM   #1
keepishop
Registered User
1989 XJ Cherokee 
 
Join Date: Oct 2008
Location: Seattle
Posts: 3,372
Power...Comfort...BLOWER! Or, how I quit changing shift points with my knee.

This is a hack to turn the retarded comfort/power switch into a useful fan control switch. Note that this only works for RENIX cherokees.

First, under the hood find the sensor going into the driver side of the radiator and cut the wires. Splice the connector end onto a new pair of wires going through the firewall (needs to be long enough to reach the switch location). I used butt splices here for better heat and vibration resistance.


If the sensor was unplugged, then knowing this location will be helpful. The fan control plug is between the ballast resistor and the air box.


Ok, now tear open your dash. Remove the cigar lighter, the clock, and the panel with the transmission switch on it.


Cut the three wires going to the black plug on the back of the trans switch. Twist the harness side tan and black with yellow stripe wires together to lock the trans in power mode. If you like comfort mode better, just tape them off. Tape off the solid black
ground wire for safety's sake, since its right by the cigar lighter. Twist and tape the wire from the sensor plug through the firewall to the tan and blk/ylw wires on the switch side. This will cause the power setting to short the wires, and turn on the fan.


Bolt it all back together, and enjoy the manual fan control, while maintaining a clean dash look.

__________________

Current: Black 89 limited, dakota bastard pack, zj coils, 1.5" lift, open cooling swap, bronco 2 carrier, rad fan switch
Rest in Pieces: Red 1990 cherokee dana30/8.25 - v8 zj coils & s10 bastard pack 2.5" lift - 31x10.5r15 tires - v8 zj tierod

Quote:
Originally Posted by talentjeep View Post
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Last edited by keepishop; 03-06-2011 at 02:39 PM.. Reason: Laptop keyboard. *rage*
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Unread 03-06-2011, 06:27 PM   #2
xGArfx
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1999 XJ Cherokee 
 
Join Date: Mar 2008
Location: Paramus NJ
Posts: 859
looks like a cool mod, is the power comfort switch just a relay? i wired my aux e-fan with a relay that just runs power to the positive on the fan, works great. I'd also suggest getting a 97+ aux e-fan as it has 10 blades and pulls more cfm than the older style. Currently I'm looking into doing a taurus fan swap but its a bit more complicated then just putting a switch in lol trying to put a fan controller also so we shall see.. Good write up for the renix boys!
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Unread 03-06-2011, 07:32 PM   #3
keepishop
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1989 XJ Cherokee 
 
Join Date: Oct 2008
Location: Seattle
Posts: 3,372
Quote:
Originally Posted by xGArfx View Post
looks like a cool mod, is the power comfort switch just a relay? i wired my aux e-fan with a relay that just runs power to the positive on the fan, works great. I'd also suggest getting a 97+ aux e-fan as it has 10 blades and pulls more cfm than the older style. Currently I'm looking into doing a taurus fan swap but its a bit more complicated then just putting a switch in lol trying to put a fan controller also so we shall see.. Good write up for the renix boys!
The power switch is just a normal lighted switch. I'm just using it to fool the jeep into thinking the rad is hot. I actually do have the 97 fan and it does blow way more air.
__________________

Current: Black 89 limited, dakota bastard pack, zj coils, 1.5" lift, open cooling swap, bronco 2 carrier, rad fan switch
Rest in Pieces: Red 1990 cherokee dana30/8.25 - v8 zj coils & s10 bastard pack 2.5" lift - 31x10.5r15 tires - v8 zj tierod

Quote:
Originally Posted by talentjeep View Post
Bleed or Quit.
jf irc @ irc.freenode.net #jeepforum
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Unread 03-07-2011, 01:21 PM   #4
keepishop
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1989 XJ Cherokee 
 
Join Date: Oct 2008
Location: Seattle
Posts: 3,372
Bumping for karma...
__________________

Current: Black 89 limited, dakota bastard pack, zj coils, 1.5" lift, open cooling swap, bronco 2 carrier, rad fan switch
Rest in Pieces: Red 1990 cherokee dana30/8.25 - v8 zj coils & s10 bastard pack 2.5" lift - 31x10.5r15 tires - v8 zj tierod

Quote:
Originally Posted by talentjeep View Post
Bleed or Quit.
jf irc @ irc.freenode.net #jeepforum
keepishop is offline   Reply With Quote
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