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 Derrick Your Own Question

Derrick
Derrick, ASE Certified Technician
Category: Jeep
Satisfied Customers: 923
Experience:  A.S.-Automotive Analysis A6-Electrical A8/L1-Engine Performance Cert., CA Chrysler/Jeep/Dodge Tech
7680243
Type Your Jeep Question Here...
Derrick is online now
A new question is answered every 9 seconds

Jeep Grand Cherokee Laredo: Hi, we have a jeep garnd cherokee

Customer Question

Hi, we have a jeep garnd cherokee laredo year 1999. The keyless transmitter wasn working, so we take the car to the main dealer service and they ordred a new transmitter and reprogrammed it to the car. But they told us the car sometimes works and sometimes not, and they dont cant fix the problem. So we bring the jeep yesterday back it was perfectly working. Today he doest want open the door, and when we open whit the key and want start the engine the security mode doesnt let start the car? What can be the problem please help me....
Submitted: 2 years ago.
Category: Jeep
Expert:  Derrick replied 2 years ago.
Hello,

First of all, do you have any other key fobs to the Jeep? Do these key fobs work? If so, I think there was a problem with the programming of your new fob. If not, what is happening is that your security module (SKIM) sees that the car is still armed and will not let it start until it it properly unarmed. This is most likely due to a failing WCM (wireless control module), it is a pretty common problem on your model Jeeps. This is the module that receives the signals from the key fobs to unlock the doors. If this module fails you cannot unlock the doors even with a working key fob.

One thing you can try is to disconnect the battery for a few minutes and reconnect it. This will "reset" the module. If it begins working, then you know that you have a bad WCM and it will need to be replaced.

I hope this helps, let me know if you have any more questions!
Derrick, ASE Certified Technician
Category: Jeep
Satisfied Customers: 923
Experience: A.S.-Automotive Analysis A6-Electrical A8/L1-Engine Performance Cert., CA Chrysler/Jeep/Dodge Tech
Derrick and 9 other Jeep Specialists are ready to help you
Customer: replied 2 years ago.

Hi, we try what you say. And it is the WCM. After disconecting the baterry the car was working. I want ask where is this module? Under the windscreen in the dashboard or in the door. Our car is right hand drive.


Thanks

Expert:  Derrick replied 2 years ago.
I'm glad that worked for you, that's what I was suspecting. The WCM is in the drivers door behind the door panel.

Unfortunately, if you replace it yourself, you still need to have a Chrylser/Jeep/Dodge dealer program the module to the vehicle, and then program the remotes to the module.

I hope this helps, let me know if you have any more questions!
Customer: replied 2 years ago.

Thanx. And can we make something to switch or close this thing out. Then I ask about this part the official jeep service and they give me a price from an another part (1000€) and they ask me for what is the wcm for it. So they have not the clue. So I don't trust them. And I want use my jeep. Thanx

Expert:  Derrick replied 2 years ago.
The WCM is a term used on the newer Jeeps. On your Jeep, the security key module is called the SKIM (Sentry Key Immobilizer Module), for the key. But the wireless function is part of the driver's door module.

Just tell them you need the module for your wireless remote, they should tell you its the drivers door module. If not, ask to speak with someone else who is more familiar with these Jeeps.

I hope this gets you going!

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:

 
 
 
  • Thank you so much for your answer. My initial estimate was $325; I got it done for $100 - part and labor. Lynn B. Ormond Beach, FL
< Last | Next >
  • Thank you so much for your answer. My initial estimate was $325; I got it done for $100 - part and labor. Lynn B. Ormond Beach, FL
  • 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
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
 
 
 

Meet The Experts:

 
 
 
  • Mark

    22 Year Factory trained technician

    Satisfied Customers:

    2548
    Jeep factory training........25 years in the industry.
< Last | Next >
  • http://ww2.justanswer.com/uploads/MO/MoparCertified/2012-6-7_4142_mechanic.64x64.jpg Mark's Avatar

    Mark

    22 Year Factory trained technician

    Satisfied Customers:

    2548
    Jeep factory training........25 years in the industry.
  • http://ww2.justanswer.com/uploads/jeep10000/2008-9-18_222938_192601.jpg Chris's Avatar

    Chris

    Shop Foreman

    Satisfied Customers:

    2265
    Jeep and ASE Certified Master Tech
  • http://ww2.justanswer.com/uploads/ke4ich/2009-08-12_212931_DSC02211.JPG moparfl's Avatar

    moparfl

    ASE Certified Technician

    Satisfied Customers:

    1128
    ASE Master Tech Chrysler Dodge Jeep Master Tech
  • http://ww2.justanswer.com/uploads/nvltgo/2010-10-18_211525_youranswers.jpg Dave's Avatar

    Dave

    Jeep Master Tech

    Satisfied Customers:

    1120
    Chrysler Triple Master, ASE master Tech AA degree in Auto.
  • http://ww2.justanswer.com/uploads/tsmodie/2009-6-10_144056_tim.jpg Tim Mohr's Avatar

    Tim Mohr

    ASE MASTER TECH

    Satisfied Customers:

    805
    30 YRS EXPERIENCE, FOREIGN AND DOMESTIC, GAS AND DEISEL
  • http://ww2.justanswer.com/uploads/CD/CDJMastertech/2012-6-9_201455_JustAnswerProfilelarger.64x64.JPG CDJMasterTech's Avatar

    CDJMasterTech

    Jeep MasterTech

    Satisfied Customers:

    576
    Factory trained and certified Jeep Master Technician, ASE Master Technician
  • http://ww2.justanswer.com/uploads/jeepmopar76/2009-3-18_2204_63998760.jpg jeepmopar76's Avatar

    jeepmopar76

    Jeep/Chrysler Triple Master Tech

    Satisfied Customers:

    572
    32yr ASE Master Tech, 9yr Chrysler Master Tech, 19 yr Jeep Dealership service including AMC/Eagle