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john aka eaut
john aka eaut, The Car Guy
Category: Pontiac
Satisfied Customers: 15842
Experience:  15 years as a auto tech
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I have a 2001 pontiac gran am 3.4 service engine light came

Customer Question

i have a 2001 pontiac gran am 3.4 service engine light came on stays on steady I checked no codes found everything seems fine
Submitted: 1 year ago.
Category: Pontiac
Expert:  john aka eaut replied 1 year ago.

any other lights on?

Customer: replied 1 year ago.
lol No other lights at all
Customer: replied 1 year ago.
cannot even clear it as soon as i put my car in drive it comes on but if i kept it in park light does not come on
Expert:  john aka eaut replied 1 year ago.

does it say service vehicle soon?

Customer: replied 1 year ago.
no codes are present not even pending codes
Expert:  john aka eaut replied 1 year ago.

does your scanner have abs capabilities?

Expert:  john aka eaut replied 1 year ago.

with key on engine off do you see engine light and the service vehicle soon light?

Customer: replied 1 year ago.
i did not check for abs codes would that trigger a service engine light????? there should be a abs light that would show on dash for codes no abs lights are on
Expert:  john aka eaut replied 1 year ago.

what exactly does the light say... service engine soon or service vehicle soon ? or check engine?

Customer: replied 1 year ago.
service engine soon it says
Expert:  john aka eaut replied 1 year ago.

what are you using for a scan tool?

Customer: replied 1 year ago.
a actron odb2
Expert:  john aka eaut replied 1 year ago.

and when you hook it up it just says no codes found or something similar?

Customer: replied 1 year ago.
no codes found and NO pending codes found
Expert:  john aka eaut replied 1 year ago.

I would try a good scan tool it ma have a u code or a b code that your code reader will not access

Customer: replied 1 year ago.
what is a B code? abs? but abs light would come on if faulty correct????
Expert:  john aka eaut replied 1 year ago.

or any body control codes so yes and no to your question

Customer: replied 1 year ago.
your saying a bcm code would trigger service engine light??????
Expert:  john aka eaut replied 1 year ago.

some b codes can.. abs codes are C codes so we need to start with a good scan tool

Expert:  john aka eaut replied 1 year ago.

have you tried a module reset?

Customer: replied 1 year ago.
No how do i do a module reset the proper way?? and what is a good scan tool that you know of that can read those besides a tech 2 that costs over 3000 dollars lol
Expert:  john aka eaut replied 1 year ago.

lots of scan tools can... no tech 2 needed autel makes a few I even think actron makes a decent one for a few hundred and I believe the premium one at harbor freight... Module reset I unhook the battery and hold the positive and negative cable posts together for 30 seconds

Customer: replied 1 year ago.
ahhh i heard of that OK well i can try that and see and work from there
Expert:  john aka eaut replied 1 year ago.

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