Fred823b

I got in my truck this morning to head to work and did the normal start up. The engine light didnt go out, and it beeped at me to let me know it was there. Last night, it was all fine after fill up. Now this morning, this happens?

No idea what it is, but I would like to just "reset" the ecm to see if it comes back on, as I am going on a mini road trip after work (only 300miles) and just dont want to be standed. But if it comes back, I can look for another way up.

Any ideas or tricks I should know about? Some old GM cars can have the ignition on the acc. position and press the accelerator 40 times to reset.. Anything like this? Thanks in advance!!

- Fred


*the truck is a 2006 auto with no mods.

D-Roc

You can try unplugging the battery...not sure if you can "reset" the ecm the way you want. You may have to get it scanned to see what is wrong if unplugging doesn't help. Or get the code's by turning your ignition to the first setting three times and seeing what you get.

donhov

First off use the key on/off 3 times to see if there are any codes. Probably a one time occurance but check to be sure. If it was just a one time thing after 30 or so good starts it will just go away by itself. If not at least you will know what caused it with the code scan.

Just turn the key off and on 3 times leaving the key on for the last cycle. Do not let it turn over the starter while cycling the key. Also this has to be done quite rapidly to get it to display so as fast as you can on the key cycles to make it work. After the 3rd cycle leave the key on and watch the odometer. Code will be displayed in the mileage area and when finished will show ----Done----. There are references for what the various codes are availabe on this and other sites and should let you know what they are.

Fred823b

Thanks fellas'! I will first cycle it, then if it doesnt show a code, I will unplug the battery.

Fred823b

I went outside, cycled and came back with the code P0071 which is ambient temp performance... What does this affect?

dodgezilla04

that is a nuisance code, just like the battery temperature rationality code. dont worry about it. it will go away after a few heat up/cool down drive cycles.

steelblitzkrieg

They have a flash for it, but you fuel mileage will drop a bit, mine did.

Did you have your engine block heater plugged in? That's usually what causes it.

fayard19

dodgezilla04- I know this is a OLD thread but thanks for the input on this. I had to justify this truck to my wife(huge Ford fan and almost bought a 6. oh oh) and was sweating the code this morning on my daily 60 mile commute to work. Now I can breathe a sigh of relief for the code.


I have been a 4 month watcher of this website to just learn about my 06.

Great Website Ladies and Gentlemen....


Thanks again,

-David