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Old 03-12-2011, 08:34 AM
kisportolt kisportolt is offline
2003 3.0 v6 xlt
Join Date: Mar 2011
Posts: 99
Default cruise control troubles

so i bought my truck earlier this week and the cruise doesn't work. i press the on button and then set, and the "speed cont" light blinks but that's all and the cruise doesn't set. tried it at 30, 60, and 75mph and still nothing. dont think its a fuse because the light does blink, and when i took it to a mechanic for an issue with the heat (fried actuator) he said that the wiring looked good but he didn't really look at it too much. any help?
2003 3.0 v6 xlt supercab flex fuel

1995 Jeep Wrangler YJ, 2.5l 5 speed
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Old 08-02-2011, 01:58 AM
sheltonfilms sheltonfilms is offline
Junkyard Dog
Join Date: Sep 2010
Posts: 1,633
Default Re: cruise control troubles

There is a diagnostic mode for these trucks.

First turn the key to the on position (not starting the engine) while holding the OFF button on the controls.

The speed cont should blink.

Then press in this order ON, Resume, Coast, SET/ACCEl.

Do this moderately fast. Like a second between each press.

After you press each button you should see a flash (this shows that each button works).

After the last press (set/accel) you should get one flash it everything is fine, and then you can feel the throttle move as the servo moves the cable like an inch back and forth. If you get two it means that the brake light switch, or wiring, clutch pedal switch or jumper, wiring is bad or you had your foot on the brake or clutch. Three flashes means a problem with the brake pressure deactivation switch.

Post what happens or if you have problems getting this to work. If you have a problem doing this diagnostic I can post a video later to show what to do .
Automotive Electronics Engineer
2000 XLT 2.5L A/T
Explorer OHC
Explorer Autodim Mirrors w/ Autolamps
Explorer Sport White Face Gauges
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