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, ASE Certified Technician
Category: Jeep
Satisfied Customers: 22120
Experience:  Chrysler/Dodge/Jeep Master Certified, ASE Master and Advanced Certified, Trans and Hybrid Specialist
9825021
Type Your Jeep Question Here...
sprinkles08 is online now
A new question is answered every 9 seconds

WE HAVE PROBLEMS THAT THE KEY SHOWS SOMETIMES, AND IF YOU

Customer Question

WE HAVE PROBLEMS THAT THE KEY SHOWS SOMETIMES, AND IF YOU LEAVE IN ONE NIGHT, THAN WHEN YOU START IT IN FEW MINUTES IT STARTS CLOSING ALL METERS ONE BY ONE INCLUDING THE WINDOWS GLASSES WOULD NOT WORK, AIR CONDITION DOES NOT WORK. ALL THE PANNEL LIGHTS WILL BE ON BUT THE VEHICLE WORKING NORMALLY. AFTER SOMETIME DRIVING IT COMES BACK AND ALL WORKING. WHEN YOU SWITH THE CAR OFF EVERYTHING HAPPENS THE SAME.
JA: Just to clarify, what are the exact lights you're talking about?
Customer: THE KEY LIGHT, ABS, SEATBELT, CHECK GAUGE, ETC... AS IN ALL ON THE PANEL
JA: What is the model/year of your Jeep?
Customer: GRANS CHEROKEE LIMITED 4.7 YEAR AND MODEL 2000
JA: Are you fixing your vehicle yourself? What have you tried so far?
Customer: GRAND
JA: Anything else you want the mechanic to know before I connect you?
Customer: ONLY WE DID IS DISCONNECTING THE BATTERY, NO ONE FIXING THE VEHICLE AS OF NTODATE
Submitted: 2 months ago.
Category: Jeep
Expert:  sprinkles08 replied 2 months ago.

Hello and welcome to JustAnswer!

There are several things that could cause the symptoms you're describing and it may require some electrical testing to determine what is going on. The most common thing I've seen ause this though is an internal failure in the powertrain control module. Can you unplug the alternator field connector and see if the problem goes away?

Customer: replied 2 months ago.
When we unplug the alternator field connector the problem went away. Please let us now the solution.
Expert:  sprinkles08 replied 2 months ago.

The powertain control module will need to be replaced.