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Unread 09-06-2011, 09:11 PM   #1
cevans87
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1992 XJ Cherokee 
 
Join Date: Nov 2008
Location: , North Carolina
Posts: 411
Hybrid Cruise Control .... Help!

Ok so I have a 1990 wrangler, ive put a 4.7 stroker in using fuel injection, wiring harness, tilt steering column, and factory cruise control in from a 1993-1994 cherokee.... And cruise isnt working....

Vaccum is connected, wiring is connected to servo....

Wiring from column for cruise is connected to the engine harness from the cherokee...

without altering any wiring first attempt at cruise control was umsuccessful...

Then cross referencing diagrams between 90 yj and 93 xj, led me to belive that the yellow/red wire on the xj harness connecter for cruise control at the steering wheel needed a signal from the lightblue/black wire on the yj stop lamp switch

Still not working...and no codes from ecm for 34 code...

Where is my problem ?

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Unread 09-06-2011, 09:36 PM   #2
Fin_Reaper
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1988 YJ Wrangler 
 
Join Date: Sep 2010
Location: Stayton, Oregon
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Pull out the multi-meter and check signal voltages (if a 3-wire setup like my 5.2) or switch closures (4 wire setup). Recheck your schematics and wiring.

I couldn't use my stop lamp out of my 88 YJ. I had to use another, independent stop lamp switch from a ram.
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Unread 09-07-2011, 04:47 PM   #3
cevans87
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1992 XJ Cherokee 
 
Join Date: Nov 2008
Location: , North Carolina
Posts: 411
Im not following you....

Im using the xj steering column, xj wiring harness and xj cruise....

The switch on the column has a connector with 4 wires.... 2 go to the ecm, one has power coming from the xj pdc and one (yellow/red) should go to the stop lamp switch....

I cross referenced the wiring diagrams and have connected the xj yellow/red cruise switch wire to the yj lightblue/black wire on the stop lamp switch.... I guess this wire is supposed to disengage the cruise once the brake is engaged...

But i have nothing..... What can i check ?
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Built Not Bought #447, 1992 Jeep XJ Supercharged 4.7, 1988 Jeep YJ Auto 4.2L, 2008 Commander Limited HEMI, 1990 Jeep YJ 4.7L Fuel Injected AW4, 1981 Scrambler 304 Auto

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Unread 09-07-2011, 05:21 PM   #4
Anticanman
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1994 YJ Wrangler 
 
Join Date: Aug 2009
Location: Ripon, California
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Try running it with the wire unhooked and give it power manually. I would also try posting this in the XJ forums. It seems it would pertain more to that than a yj.
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