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Any auto parts stores still read OBDII codes for free?

Advance and AZ should still do it.

You can also spend less than $10 on a Bluetooth OBD2 adapter and d/l torque as well if you have android phone.
 
Thanks. I went down to Autozone and they were able to check the codes for me. It came back as low engine oil. I had the oil changed last week so that worried me as I had lost one car to oil loss from a shoddy oil change. Anyway, I checked the oil and it was fine. The check engine light went away but I'm not sure if reading the codes cleared the code or if something else is going on.
 
I think all of the major auto parts stores will read codes. A lot of them will refuse to clear codes, though.
 
That makes no sense since resetting the CEL resets the readiness monitors...automatic fail.

But again, CA fail.
 
Last edited:
NutBucket said:
That makes no sense since resetting the CEL resets the readiness monitors...automatic fail.

But again, CA fail.
Click to expand...

Yeah, this. OBDII testing requires a certain number of monitors to be in the ready state, which doesn't happen immediately. If there's a serious issue, the CEL will reappear as the monitors check engine sensor outputs through the drive cycle(s).
 
It was my understanding they would check codes and print out code information for you, but would refuse to clear or reset any codes. Why would they make it illegal to check them when they already won't clear them for you?
 
IronWing said:
Thanks. I went down to Autozone and they were able to check the codes for me. It came back as low engine oil. I had the oil changed last week so that worried me as I had lost one car to oil loss from a shoddy oil change. Anyway, I checked the oil and it was fine. The check engine light went away but I'm not sure if reading the codes cleared the code or if something else is going on.
Click to expand...

Low oil level? Really, on an OBDII scan?
 
ya, AutoZone don't do it no more, the guy there told me to goto Pepboys and they will do it for you, instead of loaning it out to you and doing it yourself.
 
NutBucket said:
Historically the oil light means low pressure. I'm not sure which light(s) come on if the level is low.
Click to expand...

I would think a low oil pressure light would be sufficient to let the operator know to check the oil level. One has a lot to do with the other. In either event, operating the engine with that light on is not good.

I guess I treat it like other lights. They really just tell you something on that particular system is suspect. Electrical, tires, oil, fuel, or the good old CEL that tell you nothing useful.
 
If your oil pressure is low enough for the light to come you've already done some serious damage IMHO. The threshold of that sensor is usually less than 10psi. Typically oil pressure at cruising RPM should be least 40. It's the most useless dummy light on the dash IMHO.
 
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