Question about 1999 Mercury Grand Marquis

1 Answer

1999 LINCOLN TOWN CAR DIAGNOSTICS SYSTEMS NOT WORKING

Went to autozone to check why the check engine light was on but the assistant said that the diagnostics systems is not reading that maybe a fuse is blown

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 6,784 Answers

Hi. there are two reasons for a non scan when dealing with the diagnostic CPU. one is user error. most auto zone techs are not trained to use the diagnostic equipment correctly and if a problem comes up and they cant get a reading, the usually will blame the non scan on the patrons vehicle. Even if you had a few blown fuses in this vehicle, you should be able to still grab a code. doesn't matter if the fuse is blown.The only technical error that can exist in your vehicle that could block a proper scan would be a ecm/pcm failure or, a damaged input port that is used by the diagnostic cpu to download the trouble codes.

I recommend first, taking it to the dealership so that you can get a professional diagnostic scan run by a real technician. If there is another scan error once more, it will most likely be the input port under the dash that is damaged or the vehicles cpu may be damaged as well.

Please rate and god bless:)

Posted on Apr 16, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

3 Answers

Suspencion down


Need a repair shop to diagnose the
air ride system
Can't guess form here,always need the
patient

Aug 08, 2013 | 1994 Lincoln Town Car

1 Answer

Check engine light flashes 37 times


Anytime your light flashes like that, it means there could be major engine damage. Get it to Autozone asap and have it scanned. They will do it for free and they will let you know what it says.

Feb 19, 2011 | 1999 Lincoln Town Car

1 Answer

My check track light came on today in my car what does it mean its a lincoln town car 2000


Hello

When the Check Engine light is turned on the computer control unit (called the PCM) has sensed a fault in the electronic controls of the engine and/or the emission system. When this happens you will seldom feel the car engine run any different. There are about 200 possible faults that turn the Check Engine light on, to know what has developed a problem you must have the system tested, this is called an OBD2 fault code test, Kragen and Autozone parts stores do this testing for free.

Jan 19, 2011 | 2000 Lincoln Town Car

1 Answer

My back passenger window will not go up in my 1999 Lincoln T. Car


Does the button on the passenger door work. They were prone to the drivers switches going bad. Usually the drivers window due to more use. They check engine light could be numerous things. Bad O2 sensor for example, Best to have it scanned. Could probably get the code at an AutoZone, Oriellys etc.

May 14, 2009 | 2001 Lincoln Town Car

1 Answer

1999 Lincoln Town Car (Check brake Light comes on intermittently


brake light switch located on the steering column by brake peddal

Jan 28, 2009 | 1999 Lincoln Town Car

1 Answer

2006 lincoln towncar Burnt out light bulb


I recommend autozone if you buy the bulb from them they will assist you but I believe it has to be replaced from inside the trunk

Jan 12, 2009 | 1999 Lincoln Town Car

1 Answer

CHECK ENGINE LIGHT CAME ON


cars after 1996 have a OBD (on board diagnostic) system to control emission , which added parts like catalytic converter and oxygen sensors to communicate with the computer on the car

if converter or o2 sensor is bad it can turn on chk engine and if the converter is blocked the engine could fireback {when converter accumulate too much carbon}

http://www.lincolntowncar.org/

Jun 22, 2008 | 1999 Lincoln Town Car

Not finding what you are looking for?
1999 Mercury Grand Marquis Logo

140 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mercury Experts

yadayada
yadayada

Level 3 Expert

74945 Answers

fordexpert

Level 3 Expert

5467 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22095 Answers

Are you a Mercury Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...