CDP

Is there a way to temporarily disable the check engine light from coming on besides disabling the battery?

berti_00

yeah with a computer... some shops did it a few times for my dad. they just rested everything.
but battery works too witch you already know

whipplem104

unplug the diagnostic module. or remove the bulb.

donjuan45i

take the car to any shop that has a diagnostic OBDII scanner, they are most of the times willing to shut it off if you want. some charge tho for diagnostic, maybe tell them you just want them to erase the codes, maybe they wont charge you for a full diagnostic

BUT Some autoparts store also give a free diagnostic such as autozone and advanced autoparts, not sure if they will turn off the light though. I actually think they have a policy against it.

EDIT: just noticed that your car is a 95 I think OBDII is just for 96+ (autoparts stores also I think only carry OBDII) your going to need OBDI any small shop that runs computer diag should have it

or just do the battery trick

CDP

Where and how can I do that?

I tried removing the instrument cluster in the past to remove the bulb but I couldn't get it to come out of the dash. Is there a fuse for that light or something? or maybe I should disable the entire instrument/light for the instrument cluster?

Oh and I'm just trying to find out so I can smog my car. lol

STLe320

My check engine light has been on for almost 3 weeks, and nothing is wrong? Another thing, the yellow light for a missing light comes on periodically, and I don't have a light out?

ZedStyle

why is the light coming on?

CDP

Unknown at the moment.

It comes and goes since a few months after I bought the car and it's been running fine however.

Now I'm curious as to how I can disable the diagnostic "module"

ZedStyle

that's weird... would have been if you could read the codes to figure it out, but if it keeps going away that's just strange...
i would pull the bulb though, if you could find someone to help you get the cluster out...

CDP

Last time I recently hooked up the car to the Star Diagnostic there was one minor problem but I forgot what it was specifically.

I wonder if you can temporarily disable the instrument cluster entirely? or just the warning lights. I haven't been able to check yet - I've been in the office all day.

whipplem104

If you are trying to do smog then the light has to come on for start up and then go out.
To remove the cluster you have to disconnect the speedo cable from the rear of the transmission to give the cable slack.
The diagnostic module is most likely behind the Instrument cluster and down a little.
If you just need the code cleared to get through emissions then go to the diag. terminal by the battery on passenger side under hood. There is a button. Push it for 2-3 seconds and count the blinks. This is the code. Then immediately push the button for 8 seconds and code will clear. Must do this after every code one at a time. When the light blinks once no codes are present.
cycle the key and go get your emissions.
good luck.

rivcal4life

Just put a piece of electrical tape over it. Or if you really wanna get technical, print out a picture of it with the light off so the words are still there.

oooorrrr.

Pay the smog shop an extra 10-20 bucks. Just go to a smaller shop and talk to the guy. I got mine passed with the smog pump bypassed and a failed gas cap.

CDP

Already got the smog taken care of - Passed.

I just reconnected the battery.

berti_00

good for you phammi boiii

oneill_1

chris, you coulda cleared the error codes that were being thrown. i am not sure if my home made tool woulda worked but if you need it cleared again, hit me up...you know my aim.
or what he said^

-OG

CDP

I never see you on AIM anymore galindo!!!

Federic0W124

i just pulled mines out. goddamn upshift delay code.
the cluster came right out...no speedo cable to deal with

Chinny4290

If you have a 16pin diagnostic module next to your battery that looks like this:



Hold that button next to the 2 (The quick diag button) for 10 seconds, with the battery turned fully on, but no engine.

Resets the CEL computer and light is gone. However, it turns back on every 5 key cycles if you have an ongoing problem. A nice temporary tip.

I'm surprised none of you knew of this.

whipplem104

Also want to add that the v8 w124's have an electric speedo, so do not try this on the other models.

Chinny4290

I believe all W124s have electric speedos.

YNVDIZW124

My car doesn't have a check engine light but you wanna know a trick? Change the check engine light to the bulb out to out socket. Just say that light turns on because you have a short on one of the bulbs when it's actually your check engine light. Some smog guys turn on the car and check if you took out the bulb because all the lights come on when you turn the key to the acc position.

jameyemail

reading through the temp ways to turn off the CHECK ENGINE LIGHT....
I went out and looked on her 2007 c230 and couldnt find anything that looked like the picture someone posted of the 16 pin module with the push button on it. Can someone please help us?

Plutoe

Most car selling thieves will simply pull the IC and disable the check engine light bulb!!

What you read or thought you read was not applicable to cars W210 and older. The W140 USA model had the under hood 16 pin diagnostic connector with push button which if you knew what you were doing you could manipulate the CEL!

What's you issue--are you trying to cheat someone and turn off the CEL or is someone trying to screw you!!

jameyemail

Just trying to get girlfriends car through deq/smog.
any suggestions?

Plutoe

Yep, fix the problem or get her a hoodie-footie!!