Question about 2002 Toyota Sequoia

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My 2002 sequoia malfunction indicator lamp came on . Why would it come on never has bwfore

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  • Expert
  • 236 Answers

Take the car to a shop and ask them if they can check why the light came on, unless you have a code scanner to retrieve the code, good luck

Posted on Dec 15, 2016

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Posted on Jan 02, 2017

StormStrikes
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SOURCE: Malfunction indicator lamp

The Malfunction Indicator Lamp or MIL (Also called the check engine light or service engine soon light) comes on when the on board computer detects an issue with the operation of the engine or transmission.

The best thing to do is to take the vehicle to an auto parts store like Autozone and have them hook up their scan tool to the vehicle and read the code. They can read it, tell you what it is and also tell you what the code means.

If it is pointing to a faulty component or sensor and you replace or repair the component the the light will go off on its own after the computer sees that the malfunction is no longer present.

You can have the code cleared, but if whatever caused the light to come on in the first place is not addressed then it will just come back on eventually.

Posted on Dec 31, 2008

  • 1 Answer

SOURCE: MALFUNCTION INDICATOR LAMP

Check your CAPS LOCK as that may be the problem.

Posted on Nov 03, 2009

emissionwiz
  • 75744 Answers

SOURCE: malfunction indicator lamp in my toyota corolla is on how i fix?

The check engine light also called the malfunction indicator comes only when the computer control unit (called the PCM) senses a fault in the electronic controls of the engine and/or the emission system, there are about 200 possible faults that turn the 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.

Posted on May 27, 2010

emissionwiz
  • 75744 Answers

SOURCE: malfunction indicator lamp illuminated on daewoo lacetti

The check engine light comes only when the computer control unit (called the PCM) senses a fault in the electronic controls of the engine and/or the emission system, there are about 200 possible faults that turn the light on, to know what has developed a problem you must have the system tested, this is called an OBD2 fault code test

Posted on Jun 02, 2010

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ZJLimited
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SOURCE: car suddenly started shaking malfunction indicator lamp displayed

When the light comes on, one or more diagnostic trouble codes (DTC) are stored in the engine control module. These DTCs remain even if the light goes out. To address a Check Engine Light problem, the DTCs are retrieved and the appropriate troubleshooting information is followed in order to determine the problem.

The four most common Check Engine Light scenarios and what to do:
* The Check Engine Light turns on and off or flickers.
If the Check Engine Light comes on in the city but goes off on the freeway, then the fault is present during city driving conditions. Pay attention to whether or not the vehicle runs or drives any differently when the Check Engine Light illuminates. If vehicle performance does change, drive the car as little as possible and take it to be checked by a service professional as soon as possible. If there is no change in vehicle performance, you can drive home, but have it inspected as soon as possible. In this condition, you run a risk of the vehicle dying or not starting.

* The Check Engine Light comes on and stays on.
If the Check Engine Light illuminates constantly during driving with no noticeable driving or performance problems, there is a permanent fault in the emission control system. When this happens, the computer that controls the emission system usually has a backup program that runs while the fault is present. (These backup programs are often referred to as "limp home" mode programs.) You should get the vehicle serviced as soon as possible, but in most cases, the vehicle will continue to operate, though you run a risk of it dying or not starting.

* The Check Engine Light illuminates, stays on, and there are performance problems.
This means that a vital component of your emission control and engine management system has a serious problem. It usually involves a component or system needed for the vehicle to run at all. In most cases, drive the vehicle as little as possible. In many cases, the vehicle is not safe to drive at all -it could stop or stall out at any moment. It is best to pull over to a safe place and have the vehicle towed to an automotive diagnostician for a thorough inspection and repair.

* The Check Engine Light light comes on and blinks in a steady pattern while driving.
Don't confuse this steady pulsing of the Check Engine Light light (usually one or more flashes per second) with a flicker (see above). The Check Engine Light may stay on steadily or it may flash when the vehicle is accelerated. This is very serious. There is a severe failure of the emission control system that is causing the engine to misfire to the point that the catalytic converter is damaged each time the Check Engine Light flashes. It may mean that the catalytic converter is overheating to the point that it will glow red or, in extreme cases, start a fire on the underside of the vehicle. Immediately pull over to a safe place and have your vehicle towed to an automotive diagnostician for repair. Vehicles can be severely damaged and even destroyed by fire if this condition is ignored for too long.

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Posted on Jun 18, 2012

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1 Answer

There is a hissing noise on my 2002 Sequoia that stops when the brake pedal is hit. Do you have any idea what it is?


indicates a bad vacuum leak in the brake booster
take it to an accredited brake specialist shop for a proper diagnosis
best fix is a new booster unit

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Four wheel drive not working on 2002 chevy blazer


Is the SERVICE 4WD indicator lit ?
The SERVICE 4WD indicator is an integral part of the cluster and cannot be serviced separately. This lamp is used to inform the driver of the vehicle that a transfer case system malfunction. The SERVICE 4WD indicator is controlled by the transfer case shift control module via Class 2.
If so suggest you take it to a ASE certified repair shop !

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4hi worked yesturday on my 2002 envoy this morning i could only get 4low to work what could be wrong


you may have a bad switch ! i could tell you how to test it ,but could be fairly lengthy . do you own a volt meter ? do you know how to use one? should also check for dtc's in transfer case control module !
transfer case shift control switch indicator inoperative - one or more
the indicator lamps circuit consist of 5 individual lamps contained inside the mode/range switch assembly. the following lamps are contained inside the respective range button:
?€¢
auto 4wd


?€¢
2hi


?€¢
4hi


?€¢
4lo

each time the ignition is cycled, all 5 mode indicators light simultaneously, as an indicator check to ensure proper operation of the indicators. when the ignition is on, the transfer case shift control module illuminates the indicator lamp that corresponds to the current atc gear position, by providing a ground through a current limiting driver.
the transfer case shift control module flashes each indicator lamp after a shift has been requested and continues to flash until the transfer case shift control module completes the shift.
a solid state circuit, located inside the switch, supplies ignition voltage to the lamps. the solid state circuit also receives voltage when the headlamp switch is in the parklamp or headlamp position. when the solid state circuit receives voltage from the headlamp switch, the circuit reduces the voltage that is supplied to the indicator lamps, dimming the lamps when the headlamps are on.
test description
the numbers below refer to the step numbers on the diagnostic table.

  1. this step tests the transfer case electrical control of the lamp circuits.

  2. this step helps determine module failures.

  3. this step tests the affected lamp circuit for an open or high resistance.

  4. this step tests the lamp feed circuit for an open or short to ground.

these diagnostic procedures will help you to find and repair automatic transfer case (atc) system malfunctions. this service category also contains information for repairing atc system malfunctions. for best results, use the diagnostic tables and follow the sequence listed below:
  1. perform the diagnostic system check - transfer case. all atc diagnostics must begin with the diagnostic system check - transfer case. the diagnostic system check - transfer case determines the following:
  2. ?€¢
    proper service 4wd indicator operation


    ?€¢
    ability of the transfer case shift control module to communicate through the data link connector (dlc)


    ?€¢
    existence of atc dtcs

  3. refer to the diagnostic table as directed by the diagnostic system check - transfer case. the diagnostic tables help enable you to diagnose any atc system malfunction. bypassing these procedures may result in the following:
  4. ?€¢
    extended diagnostic time


    ?€¢
    incorrect diagnosis


    ?€¢
    incorrect parts replacement

  5. repeat the diagnostic system check - transfer case after you perform any repair or diagnostic procedure. this will verify that you correctly performed the repair. this will also ensure that other malfunctions do not exist.

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1 Answer

Wiring diagram of malfunction indicator light for subaru forester 2002 (lamp just came on)?


Could be all sorts of things. Have a garage or a dealer read the ECU error code to see what is be flagged.


Might be as simple as the gas cap is not tight.

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1 Answer

2002 pontiac montana abs light on


ALL MIL Lamps are the same
(OBD Malfunction Indicator Lamps)

Check for codes
Diagnose System with problems
Resolve/Repair

ABS -- is the electronic part of your braking system

Need to have that system diagnosed at a repair shop
Not much you can do at home

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1 Answer

1996 e350 got engine check light p1742 code


Call your local dealer with your vin # ,, there is a recall for that specific code.
96-5-16 • MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATION - CODE P1742 STORED IN MEMORY - NO DRIVEABILITY CONCERNS PRESENT - VEHICLES WITH E4OD TRANSMISSION BUILT THROUGH 10/15/95 • LAMP - MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATION - CODE P1742 STORED IN MEMORY - NO DRIVEABILITY CONCERNS PRESENT - VEHICLES WITH E4OD TRANSMISSION BUILT THROUGH 10/15/95


MARCH 1996 PCM - MIL ON/DTC P1742 Set

Jul 29, 2010 | 2002 Ford E350

1 Answer

Malfunction indicator lamp in my toyota corolla is on how i fix?


The check engine light also called the malfunction indicator comes only when the computer control unit (called the PCM) senses a fault in the electronic controls of the engine and/or the emission system, there are about 200 possible faults that turn the 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.

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2 Answers

Code p0700


code po700 malfunction indicator lamp circuit malfunction tcm conditions. mil contoll circuit is shorted to ground .check the tcm for any codes in memory that are responsible for the request to turn on the mil lamp.tcm or trouble code malfunction has failed.

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MALFUNCTION INDICATOR LAMP


Check your CAPS LOCK as that may be the problem.

Sep 13, 2009 | 2002 Honda Accord

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