How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask sprinkles08 Your Own Question

sprinkles08
sprinkles08, Chrysler/Dodge/Jeep master tech
Category: Dodge
Satisfied Customers: 17113
Experience:  ASE Master and Advanced Certified, Chrysler/Dodge/Jeep Master Certified, Trans and Hybrid Specialist
9825021
Type Your Dodge Question Here...
sprinkles08 is online now
A new question is answered every 9 seconds

2007 Dodge Caravan: 3.3L v6the cruise control..light comes..overdrive

Customer Question

2007 Dodge Caravan, 3.3L V6

The cruise control is inoperative. The "CRUISE" light comes on and goes out when I press the button, but nothing happens when I press "SET". If I press and hold "ACCEL RESUME", the car will downshift out of overdrive. Releasing the button will allow the car to go back into overdrive. The "CRUISE" light will then go off, and pressing the button will not light it back.

I suspect the cruise control module (CCM) is fried, and I will need to replace it. I've heard that a bad CCM will throw a code to the computer, but will not light the Check Engine light because this code is not emissions related.

Any ideas? Where is the CCM if it needs to be replaced?
Submitted: 3 years ago.
Category: Dodge
Expert:  sprinkles08 replied 3 years ago.

Hello and welcome to JustAnswer!

 

Let's see if any fault codes are stored. Cycle the key from off to on three times ending with it on and watch the digital odometer display. Don't crank the starter, just off to on. The codes start with a P and have four numbers, there may be more than one stored. Write down any that you see and post them here.

 

 

Customer: replied 3 years ago.
P0441
Expert:  sprinkles08 replied 3 years ago.

That one wouldn't be related I'm afraid. Is that the only one you saw before it said "done"?

 

 

Customer: replied 3 years ago.
Nope. I walked away too soon! There's also P0594.
Expert:  sprinkles08 replied 3 years ago.

Great! That one is related.

 

Do you have a voltmeter or test light to do some electrical testing, or are you more looking for some possible causes?

 

 

Customer: replied 3 years ago.

I have one, but I won't be able to do any testing until the morning. The "boss" just took the van to work.

 

If you can explain any possible causes in the meantime, that would be OK as well.

Expert:  sprinkles08 replied 3 years ago.

The cruise control is controlled by the cruise servo. This is mounted just to the right of the battery tray. It has an electrical connector, one vacuum line, and a cable that runs up to the throttle body to open the throttle.

 

The P0594 sets when the powertrain control module (PCM) detects that there is no power at the cruise servo when there should be. Power is supplied to the cruise servo through the brake lamp switch which is mounted under the dash on the pedal bracket. The servo is powered when the brake isn't pressed, but then power is lost when the brake is pressed.

 

This could either be a problem in the wiring to the brake switch, from the brake switch to the servo, or it could be the brake switch itself. It's pretty likely to be the brake switch, which is a cheap and easy repair.

Customer: replied 3 years ago.

What kind of electrical testing should I do in the morning?

Expert:  sprinkles08 replied 3 years ago.

You'll need to check for power at the cruise servo first. With the engine running press and hold the cruise On button and check for power on the violet/white wire at the cruise servo connector.

 

If there is nothing there (there shouldn't be) then you would need to go to the brake switch under the dash. Again press and hold the button and check for power on the violet/white wire. If there is nothing, press and hold the cruise button and check for power on the violet/yellow wire. Most likely you will find this is ok, but there is nothing leaving the switch on the violet/white wire, and the brake switch will need to be replaced.

Customer: replied 3 years ago.

I have the switch out, and I ohm-checked it. It has six blade-style contacts in a row: 1-2, 3-4, 5-6

 

Well, with the plunger pushed in, it reads:

  • 1-2, open
  • 3-4, closed
  • 5-6, closed

With the plunger out, it reads:

  • 1-2, closed
  • 3-4, open
  • 5-6, open

My guess is 1-2 controls the brake lights because pushing the brake pushes the plunger out (just checked it out; I jumpered the pins at the connector and the brake lights lit). So it seems the switch is working. Maybe by taking it out and jiggling it, something has broken loose. So I'm going to road test and see what happens.

Expert:  sprinkles08 replied 3 years ago.
Taking the switch out may have definitely masked the problem, which is why we needed to check for power at the servo first. If we had none then we would have gone to the switch and checked for power there, by backprobing in the switch connector so as not to disturb anything.

Make sure the brake lamps still work ok when pressing the brake, then go ahead and take it for a ride and see if the cruise does work now.
Customer: replied 3 years ago.
Sorry for not replying sooner, but I am away from home working and I won't be back until the weekend. I'll do some voltage checks then.
Expert:  sprinkles08 replied 3 years ago.

Sounds great! Let me know what you find and we'll take it from there!

 

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • I AM VERY GLAD THAT I TOOK A CHANCE ON YOUR PROBLEM SOLVING SKILLS. I WAS SUCCESSFUL IN REPLACING THE FUEL PUMP. MY TRUCK RUNS LIKE A CLOCK. IT RUNS LIKE THE DAY I BOUGHT IT. NO LUNGING FORWARD, THE TURBO REACTS THE SECOND I STOMP ON THE GAS, AND IT HAS A LOT MORE POWER AND EVEN SOUNDS BETTER TO ME. IT SAVED ABOUT $500.00 BY DOING THE WORK MYSELF. I GIVE YOU ALL THE CREDIT FOR YOUR DIAGNOSING THE PROBLEM, JUST FROM THE SYMPTONS I GAVE YOU OVER THE e MAIL. I WILL USE YOUR WEB SITE AGAIN AND REFER MY FRIENDS. THANKS SO MUCH FOR THE HELP. TOM WHITTAKER USA
< Last | Next >
  • I AM VERY GLAD THAT I TOOK A CHANCE ON YOUR PROBLEM SOLVING SKILLS. I WAS SUCCESSFUL IN REPLACING THE FUEL PUMP. MY TRUCK RUNS LIKE A CLOCK. IT RUNS LIKE THE DAY I BOUGHT IT. NO LUNGING FORWARD, THE TURBO REACTS THE SECOND I STOMP ON THE GAS, AND IT HAS A LOT MORE POWER AND EVEN SOUNDS BETTER TO ME. IT SAVED ABOUT $500.00 BY DOING THE WORK MYSELF. I GIVE YOU ALL THE CREDIT FOR YOUR DIAGNOSING THE PROBLEM, JUST FROM THE SYMPTONS I GAVE YOU OVER THE e MAIL. I WILL USE YOUR WEB SITE AGAIN AND REFER MY FRIENDS. THANKS SO MUCH FOR THE HELP. TOM WHITTAKER USA
  • Just a quick line to tell you how pleased I am to have my brakes working properly after all this time. Your answer was what I needed. I would certainly recommend you highly. God bless! Rev. Jerry Baysinger Holts Summit, Mo
  • I recently asked a question about my 2005 dodge ram, and I just wanted to let my Expert know that he hit the nail squarely on the head with his answer. I wanted to thank him again. Greg Pittsburgh, PA
  • Just a quick line to tell you how pleased I am to have my brakes working properly after all this time. Your answer was what I needed. I would certainly recommend you highly. God bless! Jerry Holts Summit, MO
  • I was skeptical at first but thought I'd give it a try. I was pleasantly surprised. Your site actually is a quality service that I would recommend to others in a heartbeat. Stan Sayre, PA
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
 
 
 

Meet The Experts:

 
 
 
  • Jerry

    Master Mechanic

    Satisfied Customers:

    1227
    ASE Master tech, 30 years exp. troubleshooter, driveability tech
< Last | Next >
  • http://ww2.justanswer.com/uploads/SU/supermechanic/2013-8-23_03546_500.64x64.jpg Jerry's Avatar

    Jerry

    Master Mechanic

    Satisfied Customers:

    1227
    ASE Master tech, 30 years exp. troubleshooter, driveability tech
  • http://ww2.justanswer.com/uploads/MO/MoparCertified/2012-6-7_4142_mechanic.64x64.jpg Mopar Certified's Avatar

    Mopar Certified

    Dodge Technician

    Satisfied Customers:

    5813
    24 Year Chrysler/Dodge Certified Specialist
  • http://ww2.justanswer.com/uploads/jeep10000/2008-9-18_222938_192601.jpg Chris's Avatar

    Chris

    Shop Foreman

    Satisfied Customers:

    4041
    ASE and Chrysler Certified Master Tech
  • http://ww2.justanswer.com/uploads/ke4ich/2009-08-12_212931_DSC02211.JPG moparfl's Avatar

    moparfl

    ASE Certified Technician

    Satisfied Customers:

    3285
    ASE Master Tech Gold level Chrysler Status 30 years dealership exp
  • http://ww2.justanswer.com/uploads/DO/dodgerench/2012-8-1_1142_IMG3173.64x64.JPG Dodgerench's Avatar

    Dodgerench

    ASE Certified Technician

    Satisfied Customers:

    2480
    30+ years Dodge/Chrysler exp., ASE Master with L1 certification. Driveability/ combustion specialist
  • http://ww2.justanswer.com/uploads/RO/rodcuda/2011-7-25_224114_Donhoff1.64x64.JPG Neal's Avatar

    Neal

    Dodge Mechanic

    Satisfied Customers:

    1870
    30 years experience in Dodge Chrysler and Plymouth
  • http://ww2.justanswer.com/uploads/tsmodie/2009-6-10_144056_tim.jpg Tim Mohr's Avatar

    Tim Mohr

    ASE MASTER TECH

    Satisfied Customers:

    1664
    30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL
 
 
 
Chat Now With A Dodge Mechanic
sprinkles08
sprinkles08
Dodge Mechanic
17113 Satisfied Customers
ASE Master and Advanced Certified, Chrysler/Dodge/Jeep Master Certified, Trans and Hybrid Specialist