2009 Buick Lacrosse No Crank No Start 2 Problems!

Multiple issues can be challenging for technicians! Understanding the Basics is key to proper diagnosis!
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[@huiliu888]

I have 2005 Buick Lacrosse CXL(230K miles now). Yesterday Chicagoland morning was pretty cold (-5 F outdoor）. I met the problem "Starting disabled“。 After temperature reached 5 F (afternoon), I was able to start it again. I had communication code (U0107) before, and I disconnected negative battery and reset DCT code two weeks ago. I checked this code disappearing one week ago. I will keep eye on OBD II later. Thanks for sharing your diagnosis procedure.

[@djosbun]

Great job on this vehicle, Brian! I hope you and the family had a wonderful and relaxing vacation.

[@arthurfricchione8119]

Brian glad to see all is well. Thanks for sharing.👍

[@advancedleveldiagnostics]

Next time you have to organize your truck we would love to come along.😀

[@vickenkaragozian2041]

Great to see u back Brian. Waiting for new videos and case studies on your website and here. 👍

[@BrianMann216]

I programmed a MGU on a 19 ram (etorque) today, I will make a video of it..

[@vickenkaragozian2041]

@@BrianMann216 ok cool. I’ll wait for it. Thanks👍

[@SuperBeetle1600]

Awesome. I love finding broken wires! You're right that car did look pretty rough

[@8power0]

HY, BRIAN GREAT DIAGNOSIS . THIS VIDEO GOT ME TO THINKING , HOW DO I GET A VEHICLE TO SET TROUBLE CODES WITH NO CRANK SYMPTOMS . THANKS FOR TAKING THE TIME TO MAKE THIS OUTSTANDING VIDEO !!!

[@mrblonde2013]

Seen this before with GM products of this era, you can "fool" the car and start it with a working key and then immediately turn it off and start it with a faulty key. If you wait a minute or lock/unlock the car it definitely will not start with the faulty key. Good job Brian.

[@BrianMann216]

It is interesting that they allow the vehicle to start with no key signal. I don't know how many newer vehicles do this as well?

[@lowridermig]

Great find Brian!

[@cliffsexton3892]

My 2011 has no crank no start the plastic is broke off the key will that cause it

[@lennymaltby9864]

Hi I have a 2008 allure 3.8 just stopped now no crank no start change computer no go can you suggest anything thx

[@davidwaldo9180]

How do I go about getting a correct key for my Buick?

[@BrianMann216]

The dealer can probally get you one, or a locksmith. Not sure i understand what you arr asking..

[@motazassi2265]

Good job

[@BrianMann216]

Thank you!

[@zone1536]

Where r u located at

[@BrianMann216]

I work in the greater Cleveland area