Question about 2005 Toyota Corolla

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Sign "Main reqd" is flashing

During engine start this sign flashes abot 5 or 6 times

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Means problem with computer sys need to read codes to repair

Posted on Feb 05, 2010

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Engine starts then the immobilizer sign keeps flashing and the engine stops


demagnetized key...try the second key(service key)some times....not solved?..try taking of the car battery out for 5 minutes and try again..if it remains you need to go to tester..probably the error stayed in cars cpu..the doctor will eraise it and try again..if the problem remains yet..you need a new key...

Apr 11, 2016 | 2000 Volkswagen Golf

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Why is key sign flashing on dash when engine is on 2001 honda civic ex


battery low on keyfob ? as it cant be anything with antitheft or it wouldn't let you drive it away

Mar 10, 2016 | 2001 Honda Civic 1.7

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Check engine light flashing and shakiness in car accompanied with burning smell.


The check engine light flashing is a pretty much universal sign that you have a misfire that is bad enough that a lot of raw, unburned fuel is being dumped in to the Catalytic Converter, to the point that it could be ruined if the problem is not taken care of very quickly.

Feb 24, 2014 | 2002 Ford Ranger

1 Answer

I just bought a 2003 Ford F150, and a warning chime goes off right after starting. Chimes 5 times, pause, and repeat 4 more times. There are no lights or codes displayed on the dash. It drives fine, but...


The warning chime of 5x5 is a sign that the SRS ( airbag ) light is burnt out, and there is an error with the SRS system.

Verify SRS ( airbag ) lamp operation, turn the key from off to run ( do not start ) the airbag lamp should illuminate. If not, it is burnt out. Need to pull the cluster and replace.
( thread at F150online.com on cluster removal in the how to forum - titled about changing cluster illumination color or installing a cluster overlay ).

Once you replace the SRS bulb, you will get a LFC ( light Flash Code ) of a 2 digit number.
Example :
flash flash flash flash { short pause } flash flash { longer pause } flash repeats the same for 5 times, the solid on.
This is an example of a LFC 4-2. Once you have the LFC start a new problem with the LFC and we can get that fixed after you get the bulb replaced.

Aug 23, 2011 | 2003 Ford F150 Regular Cab

1 Answer

I have a 2001 jeep grand cherokee limited and when i go to turn the engine it start for a few seconds then turn off


this is usually the sign of a bad crank postition sensor but often times it is a loose or corrosion filled connector- clean as needed. Use OEM parts.

do a key self test;

off-on, off-on, off-on. ( do not crank the engine) the codes will flash out on the check engine light in pairs of numbers ( 5-5 being the end of the test) or codes will display on a digital odometer.


http://www.youtube.com/watch?v=JoWgHeARguc

Aug 17, 2011 | 2001 Jeep Grand Cherokee

1 Answer

After oil change the main req sign is the last one to fade


To reset go to screen where it says the oil life percentage. Have the car off but in the on position. Press the odometer button (same button to get to the oil life screen) in and hold for a while, something like 30 sec or so until it starts flashing...Then let go and push the button again and hold and after like 5 seconds i think it will then display 100% and that's it. Hope this helps you, good luck!

Apr 09, 2009 | 2000 Honda Odyssey

1 Answer

Starting in hot weather


Turns out that Hondas are notorious for having starting problems during the summer (sometimes it also happens when you just run them for a short while). I have a 1990 honda civic lx and was having starting problems and noticed that it was mostly during hot days. I got my starter rebuilt but the problem continued. Also I noticed that my car was flashing CODE 16.
The flashing code, together with the starting problems, points to a problem with the MAIN RELAY.
Turn the ignition on and check for codes, pull the carpet back on the passenger side floor and look for the flashing LED, count the flashes--that'll be the code (there's a short pause inbetween codes).
The Main Relay is located under the dash on the driver side, usually on the left hand side, can be up against the left wall, it's a small black unit with a plug. You need to unscrew it from its mounting bracket first. Change the main relay and it should solve your summertime starting problem.

Jul 27, 2008 | 1990 Honda Civic

1 Answer

Manual code retrieval for 1989 plymouth voyager 3.0 v6 engine


Hi Wayne, what you do is turn the key to the "on" position and back to "off". Do this three times. The engine light will flash. It will flash a certain amount of times, pause, then another set of flashes. The first set of flashes is the first number of your code. The second set is the second number. For example, you see 5 flashes, your first number of your code is 5, and so on.

Jun 11, 2008 | 1989 Plymouth Voyager

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