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NO CHECK ENGINE LIGHT when ignition ON

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Old 06-26-2012, 01:05 PM
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NO CHECK ENGINE LIGHT when ignition ON

Yesterday my car died on the go and didn't start afterwards. When I turn the key the check engine light does not light up. This has happened a few times before but after a few tries it would light. This time it stays off.

Any suggestions? As far as I know if check engine light isn't on when key is turned than there is something with the wiring that goes to the computer.
Old 06-26-2012, 06:21 PM
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Re: NO CHECK ENGINE LIGHT when ignition ON

Has the light been coming on with the key on, engine off before the newest problem? The bulb may be burned out. Otherwise, check the in line fuse in the holder next to the battery. If its blown, you need to figure out why it's blowing. It protects the power supply to the ECM and the fuel pump.

Also check the ECM fuse in the under dash fuse panel.

Last edited by ASE doc; 06-26-2012 at 06:27 PM.
Old 06-28-2012, 05:03 AM
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Re: NO CHECK ENGINE LIGHT when ignition ON

it has always been coming on when the key was on and engine off. It has done this kind of thing several times but than it would "repair itself" and the light would come on. This time it didn't happen. The fuses are all ok that are under the dash. But I don't know about that other one that you mentioned. Where is that exactly?

thanks for the reply.
Old 06-28-2012, 12:03 PM
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Re: NO CHECK ENGINE LIGHT when ignition ON

It should be close to the battery, on the inner fender well. It's in a black housing that almost looks like a small relay. It's attached by a screw to the fender well.
Old 06-28-2012, 01:52 PM
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Re: NO CHECK ENGINE LIGHT when ignition ON

It healed itself again :-| started perfectly!
I'll look at that as well...thanks!
Old 06-28-2012, 03:25 PM
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Re: NO CHECK ENGINE LIGHT when ignition ON

I would definitely be checking for a poor connection, either at the ECM/Fuel Pump fuse by the battery, or maybe at the ECM connector itself. I would be very nervous about driving that car too far from home.
Old 06-28-2021, 04:32 PM
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Re: NO CHECK ENGINE LIGHT when ignition ON

Originally Posted by ASE doc
Has the light been coming on with the key on, engine off before the newest problem? The bulb may be burned out. Otherwise, check the in line fuse in the holder next to the battery. If its blown, you need to figure out why it's blowing. It protects the power supply to the ECM and the fuel pump.

Also check the ECM fuse in the under dash fuse panel.
This right here. From 10 years in the past, YOU have solved my problem today. I was going through the same motions as the last guy when I came across this forum. Who knew there was a fuse all lonely and by himself up there by the battery. Sure enough, mine was toast. Literally melted. So thank you from the future! 2012 original post and in 2021 I found it. Happy motoring!

Old 06-29-2021, 10:15 AM
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Re: NO CHECK ENGINE LIGHT when ignition ON

Did you solve the source of he problem? Fuel pump drawing to much amps?
Old 06-29-2021, 10:24 AM
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Re: NO CHECK ENGINE LIGHT when ignition ON

Originally Posted by Tuned Performance
Did you solve the source of he problem? Fuel pump drawing to much amps?
It seems to be alright for now. Im going to keep an eye on things. For all I know the fuse got wet at the carwash. Its in a really stupid spot in my car. I will probably put it in a waterproof housing some day. As soon as I replaced the fuse, everything seemed honkie dorie.


Old 06-29-2021, 10:34 AM
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Re: NO CHECK ENGINE LIGHT when ignition ON

Should already be a weather pak connector.

https://ebay.us/SJgkut
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Old 06-29-2021, 10:45 AM
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Re: NO CHECK ENGINE LIGHT when ignition ON

Originally Posted by Tuned Performance
Should already be a weather pak connector.

https://ebay.us/SJgkut
But it isn't. I dont know what this car has been through before it met me 3 weeks ago, so now Im trying to get things sorted out which could have been done better.
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