2002 Lexus IS 300 Logo
Posted on Sep 15, 2012
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Cruise control doesn't work on my lexus

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Jonah Oneal

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  • Lexus Master 14,092 Answers
  • Posted on Sep 16, 2012
Jonah Oneal
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Joined: Mar 17, 2009
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Cruise control best let garage check out,here are few things to check,check fuse and check to see if brake lights dont work.check brake light fuse if fuse okay brake light switch could faulty or bad connection then brake light will reset cruise control you apply brakes.if all is good problem could be speed sensor or accelerator pedal to ecm.you need diagnostic euipment to troubleshoot.

1 Related Answer

emissionwiz

Marvin

  • 85242 Answers
  • Posted on Mar 19, 2009

SOURCE: Lexus RX300 cruise control

I would take it into the dealer and have them check it out, but it sounds like a defective cruise control transducer, that is the part that actually holds the speed.

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Srs light on, horn and cruise won't work

Well it would be helpfull to see what codes are stored in the airbag computer, but its interesting that the horn and cruise arn't working. Maybe before spending the money on having the codes scanned, i would check all the fuses, just incase.
tip

TROUBLESHOOTING WHY YOUR CRUISE CONTROL DOESN'T WORK

There are many things that can cause your cruise control to act up or not work at all. This article will lead you in the correct direction on finding a solution to your problem. This article is for any type of vehicle.<br /> <br /> <b>If your cruise control won't hold proper speed, </b>you need to look at the following parts. <br /> <ol> <li>Faulty Cruise Control</li> <li>Faulty Speed Sensor</li> <li>Faulty Vacuum or Vent Valve</li> <li>Faulty Stepper Motor</li> <li>Faulty Transducer</li> <li>Incorrect Cable Adjustment</li> <li>A Binding Throttle Linkage</li> <li>Leaking Vacuum Tank</li> <li>Leaking Vacuum servo diagram</li></ol> <b>If your cruise control surges, </b>check the following parts.<br /> <ol> <li>Faulty Cruise Control Module</li> <li>Faulty Speed Sensor</li> <li>Binding Throttle Linkage</li> <li>Kinked Speedometer Cable</li></ol> <b>If your cruise control cuts out on you, </b>check the following parts.<br /> <ol> <li>Faulty Transducer</li> <li>Faulty Cruise Control Module</li> <li>Short or Open Circuit in Cruise Control</li> <li>Brake or Clutch Switch Adjusted too tight</li></ol> <b>If your cruise control doesn't work at all, </b>check these parts.<br /> <ol> <li>Faulty Cruise Control Module</li> <li>Short or Open Circuit in Cruise Control</li> <li>Faulty Clutch or Brake Switch</li> <li>Leaking Vacuum Circuit</li> <li>Faulty Stepper Motor</li> <li>Faulty Speed Sensor</li> <li>Faulty Transducer</li> <li>Faulty Cruise Control Switch</li> <li>A Blown Fuse</li></ol>
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The clock spring has gone bad. You will have to remove the steering wheel to gain access to the clock spring (used to be called the turn sig. switch) But if you are going to perform this repair make sure you dis-connect the battery before you began because you could set off the air bag in the steering wheel
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have a look at the cruise control cable that goes next to your throttle cable next to your throttle body for looseness
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The adjustment of the brake light switch or it could be bad. the brake lights can work fine and the part of the switch that works the cruise doesn't The swiches that control it from the steering wheel can losse connection in a part called the clock spring. Vacume connections can effect the cruise but yours is likly cables less therefore doesn't work the cruize.
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