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 Tim's Auto Repair Your Own Question

Tim's Auto Repair
Tim's Auto Repair, Mechanic
Category: Chrysler
Satisfied Customers: 12969
Experience:  Have owned a repair shop for 25 yrs.
14541291
Type Your Chrysler Question Here...
Tim's Auto Repair is online now
A new question is answered every 9 seconds

Chrysler Town & Country ex: 2003 Chrysler, Town & Country.

Resolved Question:

2003 Chrysler, Town & Country. While driving all of the warning lights came on, everthing seemed ok, no engin hesitation or unsual noises. After arriving at my destination when it was time to depart the van would not start. This has happened, at least twice,before and the only accessories on at the time was the headlights and the air conditioner. [the vhicle mystirically starts after several]
Submitted: 2 years ago.
Category: Chrysler
Expert:  Michelle-Mod replied 2 years ago.


Hi, I’m a moderator for this topic and I wonder whether you’re still waiting for an answer. If you are, please let me know and I will do my best to find a Professional to assist you right away. If not, feel free to let me know and I will cancel this question for you. Thank you!


Customer: replied 2 years ago.
I am still waiting for an expert to answer
Expert:  Tim's Auto Repair replied 2 years ago.
hi
the first thing you need to do here,,is to load test the battery and the charging system,,,if you dont have a load tester,auto zone and most parts stores will do a load test for free,,
from the way you explain your problem,,it sounds as if you may have a failing alternator...
the load test will determine if it is infact a bad alternator
thanks

Please RATE my answer by clicking the RATINGS button, so I can get credit for my work,,the [BAD SERVICE] and [POOR SERVICE] rating does not give me credit].i don't receive commission if you give a less than 3 star/smiley rating ..I'm not always going to be giving you good news,so please don't let this stand in the way of you accepting my answer.it does not cost you more money.we will still be able to communicate.please understand,i can not see,hear or touch the vehicle and only know what you tell me. Bonuses and positive feedback are appreciated!if you are not satisfied with my answer,please do not leave bad feed back,i will gladly opt out and let another expert handle the question.if i have sent any diagrams,please print them.they will only stay on here for an hour or so...sometimes you may need to right click the image,then save picture as]to save it to your computer so you can open it with your picture program...PLEASE ASK IF YOU NEED MORE HELP

Tim's Auto Repair, Mechanic
Category: Chrysler
Satisfied Customers: 12969
Experience: Have owned a repair shop for 25 yrs.
Tim's Auto Repair and 7 other Chrysler Specialists are ready to help you
Customer: replied 2 years ago.
Would a "failing' alternator cause the vehicle not to start even with a jump start?
Expert:  Tim's Auto Repair replied 2 years ago.
did the starter turn the engine with a jump?
when it wouldnt start...was the alarm/security light on?
Customer: replied 2 years ago.
No, it did not start with the jump & yes the alarm/security light is on.
Expert:  Tim's Auto Repair replied 2 years ago.
does te gages work?
does the gear selector in the instrument cluster light up?
Customer: replied 2 years ago.
The security/alarm light is on and the vehicle will not jump start
Expert:  Tim's Auto Repair replied 2 years ago.
ok
are you using the original key?
the theft deterant is on,,this is why it wont start..
try using a different key
2003 Chrysler Truck Town & Country V6-3.8L VIN L
Antitheft and Alarm Systems Description and Operation, Components: System Description, Sentry Key Immobilizer System (SKIS)
SENTRY KEY IMMOBILIZER SYSTEM DESCRIPTION
The Sentry Key Immobilizer System (SKIS) is available as a factory-installed option on this vehicle. It is designed to provide passive protection against unauthorized vehicle use by disabling the engine, after two (2) seconds of running, whenever an invalid key is used to start the vehicle. The SKIS is active whenever the ignition is on and does not require any customer intervention.

The primary components of the system are:
- Sentry Key Immobilizer Module (SKIM)
Sentry Key (ignition key w/ a transponder molded into the head)
- Indicator light
- Body Control Module (BCM)
- Powertrain Control Module (PCM)

When the ignition switch is turned on, the SKIM interrogates the ignition key. If the ignition key is Valid or Invalid, the SKIM sends a PCI Bus message to the PCM indicating ignition key status. Upon receiving this message the PCM will terminate engine operation, or allow the engine to continue to operate.

The SKIM is mounted to the steering column with the molded, integral antenna mounted on the ignition housing. The indicator light, is located in the message center.

The SKIS includes keys from the factory which are pre-programmed. Each SKIM will recognize a maximum of eight Sentry Keys. If the customer would like to own additional keys other than those provided with the vehicle, they can be purchased from any authorized dealer. These keys must be programmed to the SKIM on the vehicle in order for the system to recognize them as valid keys. This can be done by the dealer with a DRB III scan tool or by a customer if this feature is available in their market and they have two (2) valid keys already available to them. Refer to the Service Procedures portion of this system for additional details.

The SKIS performs a self-test each time the ignition switch is turned to the ON position and will store Diagnostic Trouble Codes (DTC's) if a system malfunction is detected. The SKIS can be diagnosed and any stored DTC's can be retrieved using a DRB III scan tool as described in the appropriate Body Diagnostic Procedures manual.

SENTRY KEY IMMOBILIZER SYSTEM (SKIS) OPERATION
When ignition power is supplied to the SKIM, the SKIM performs an internal self-test. After the self- test is completed, the SKIM energizes the antenna (this activates the transponder chip) and sends a challenge to the transponder chip. The transponder chip responds to the challenge by generating an encrypted response message using the following:

Secret Key - This is an electronically stored value (identification number) that is unique to each SKIS. The secret key is stored in the SKIM, PCM and all ignition key transponders.

Challenge - This is a random number that is generated by the SKIM at each ignition key cycle.

The secret key and challenge are the two variables used in the algorithm that produces the encrypted response message. The transponder uses the crypto algorithm to receive, decode and respond to the message sent by the SKIM. After responding to the coded message, the transponder sends a transponder I.D. message to the SKIM. The SKIM compares the transponder I.D. to the available valid key codes in the SKIM memory (8 key maximum at any one time). After validating the key ignition the SKIM sends a PCI Bus message called a Seed Request to the engine controller then waits for a PCM response. If the PCM does not respond, the SKIM will send the seed request again. After three failed attempts the SKIM will stop sending the seed request and store a trouble code. If the PCM sends a seed response, the SKIM sends a valid/invalid key message to the PCM. This is an encrypted message that is generated using the following:

VIN - Vehicle Identification Number

Seed - This is a random number that is generated by the PCM at each ignition key cycle.

The VIN and seed are the two variables used in the rolling code algorithm that encrypts the valid/invalid key message. The PCM uses the rolling code algorithm to receive, decode and respond to the valid/invalid key message sent by the SKIM. After sending the valid/invalid key message the SKIM waits 3.5 seconds for a PCM status message from the PCM. If the PCM does not respond with a valid key message to the SKIM, a fault is detected and a trouble code is stored.

The SKIS incorporates a VTSS LED located on the instrument panel upper cover. The LED receives switched ignition voltage and is hardwired to the body control module. The LED is actuated when the SKIM sends a PCI Bus message to the body controller requesting the LED on. The body controller then provides the ground for the LED. The SKIM will request VTSS LED operation for the following:
- bulb checks at ignition on
- to alert the vehicle operator to a SKIS malfunction
- customer key programming mode

For all faults except transponder faults and VTSS LED remains on steady. In the event of a transponder fault the LED flashes at a rate of 1 Hz (once per second). If a fault is present the LED will remain on or flashing for the complete ignition cycle. If a fault is stored in SKIM memory which prevents the system from operating properly, the PCM will allow the engine to start and run (for 2 seconds) up to six times. After the sixth attempt, the PCM disables the starter relay until the fault is corrected.

thanks
Customer: replied 2 years ago.
, Thank you for your assistance. I understand somewhat the issues that may exsist the security system however there was no mention of the cause or possible repairon on this matter.

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 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
< Last | Next >
  • 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
  • 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
  • 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
  • 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
 
 
 

Meet The Experts:

 
 
 
  • Don 'Mo Lurch'

    Aftermarket & Factory Electronics

    Satisfied Customers:

    384
    Chrysler Warnty, Heavy Line Mech, Mobile Electronics. Sales, Installation & Repair for 30 years
< Last | Next >
  • http://ww2.justanswer.com/uploads/MO/molurch/2012-6-6_214526_500.64x64.png Don 'Mo Lurch''s Avatar

    Don 'Mo Lurch'

    Aftermarket & Factory Electronics

    Satisfied Customers:

    384
    Chrysler Warnty, Heavy Line Mech, Mobile Electronics. Sales, Installation & Repair for 30 years
  • http://ww2.justanswer.com/uploads/2P/2paulm/2012-4-4_183431_justabswer.64x64.jpg Paul M ASE Master's Avatar

    Paul M ASE Master

    ASE Master Tech

    Satisfied Customers:

    117
    ASE Master Tech 20+ Years
  • http://ww2.justanswer.com/uploads/MU/muddyford/2012-6-13_1204_1.64x64.png Chris (aka - Moose)'s Avatar

    Chris (aka - Moose)

    Technician

    Satisfied Customers:

    93
    16 years of experience
  • http://ww2.justanswer.com/uploads/IV/ivestoy2/2011-7-21_44030_ivan.64x64.jpg Ivan's Avatar

    Ivan

    ASE Certified Master Technician

    Satisfied Customers:

    55
    ASE Master Tech w/ 20+ years in the field. Self employed for 9 years. Member of AUTOLAB radio show.
  • http://ww2.justanswer.com/uploads/AC/acuramstr/2012-6-6_181032_me.64x64.jpg AUTOMSTR's Avatar

    AUTOMSTR

    ASE Certified Technician

    Satisfied Customers:

    0
    ASE Master Tech, L1, CA Smog ,30 YRS EXP
  • http://ww2.justanswer.com/uploads/AM/amedee/2013-10-24_23656_Amedee1.64x64.jpg Amedee's Avatar

    Amedee

    Chrysler Technician

    Satisfied Customers:

    787
    ASE Master Technician advanced level specialist
  • http://ww2.justanswer.com/uploads/SU/supermechanic/2013-8-23_03546_500.64x64.jpg Jerry's Avatar

    Jerry

    Master Mechanic

    Satisfied Customers:

    432
    ASE Master tech. 30+ years mechanic, shop forman, service manager