Question about 2002 Toyota Sequoia
HI. when the engine light comes on, your really cone look for anything. this light is connected the a on boar engine control module(ecm). this is a CPU that regulates a small current to many sensors that are connected to the engines vital regions. if any of the conjoining sensors detect an abnormality within the operation of the engines ldle or electrical situation as well, it will trigger the check engine light.
Once this light is triggered, it will generate a code that will explain what the actual problem is and how to repair it as well. these codes are extracted by a special diagnostic cpu that your local mechanic will have or, you can take your vehicle to Auto Zone and , they will run it for free. there is a legend that will has a available codes for your vehicle and the tech will match up the appropriate code for the read out.
In most situations, the issue here will be a failed sensor of some sort. maybe a malfunctioning O2 sensor or a bad egr valve etc...
PLease rate and have a great day:)
Posted on May 11, 2009
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Posted on Jan 02, 2017
Tips for a great answer:
Jun 24, 2015 | Toyota Cars & Trucks
Dec 18, 2013 | Cars & Trucks
not starting or turning over indicates towards multiple possibilities. It can
be issue with battery or weak battery. But if battery checks out ok, then it
can be starter issue or faulty alternator or problem with low fuel pressure or
no spark at spark plugs due to dirty spark plugs or faulty ignition coil or
injectors getting cracked or dirty and needs to be cleaned.
confirm the problem, the basic troubleshooting is required.
start to end troubleshooting these problems I suggest you
to check the help link below and follow its procedure: -----
all types of car no start problems are discussed here with solutions:---
NO START: ENGINE NOT TURNING OVER:
CHECK ENGINE LIGHT
engine light comes on and off, these are indication that there is some
error code stored in your vehicles ECM. The engine module computer
needs to be scanned. These will give the code and as per the error code the
further problem can be detected and confirmed. The engine light
indicator blinks or remains steady on dash when engine computer
noticed any problem with any engine electrically operated components.
more help, I suggest you to refer the help link provided below. These will let
you know more about which areas to look, check, when there is engine light
coming up on dash panel.
the link below: -------
These will help.
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