Bcm issue

Juan Diagnostician California Posted   Latest  
Tech Tip
Programming
2014 Chevrolet Spark LT 1.2L (9 LL0) (CVT7) — KL8CD6S93EC515623
Security Theft / No Start

This vehicle came in to my bay for front left and rear right parking lamp inoperative. Checked and found no power to parking lamps (supplied by BCM) with good grounds, next i monitored PIDS to BCM with scantool and found good, decided to check powers, grounds, voltage drop and load test signals to BCM and found good, performed load test from BCM to parking lamps and bulb was brighter then the sun.

I pulled the trigger and ordered a new BCM with costumers approval.

After receiving the module I programed with SPS and couldn’t program key to BCM after 2 hours attempting with my passthu and also with autel IM680 had no luck, called Calstate and warrantied the BCM, today I received the new one with same luck I programmed with KOEO since on newer vehicles you get the software corrupted.

Any help from the GM gurus would be appreciated im stuck in a hole hopping for some one to throw me some rope thanks for your time and help in advanced.

0
Miscategorized
Jose Mechanic
Texas
Jose
 

so You try the 10 minutes with the scanner, did you try the 30 minutes with no scanner right? i don't remember doing this specific car, I think should work,

0
Ð Awarded
Juan Diagnostician
California
Juan
 

Yes I tried it with the first module and didn’t work but will try tomorrow with 2nd module thank you

+1
Ð Awarded
Jesus Diagnostician
Wisconsin
Jesus
 

Ran into this issue with a new module. Just unhooked the battery and did the 30 min relearn and all was good after.

0
Ð Awarded
Juan Diagnostician
California
Juan
 

Will defiantly try this tomorrow thank for you expertise

0
Ð Awarded
Caleb Diagnostician
Indiana
Caleb
 

If you don't mind me asking do the front left and right rear park lamps work now?? I understand that you need to program the IMMO. However the lights should work. I only ask cause most of the time this is a blown fused power to the BCM. Are you 100% sure all powers are good to BCM?

0
Ð Awarded
Juan Diagnostician
California
Juan
 

Forgot to mention yes all lights work now

0
Ð Awarded
William Technician
West Virginia
William
 

Perform the SPS2 IMMO Learn but use Body Control Module IMMO Learn with New Transponder or Remote Key but use the existing keys. You have at least 2 keys present correct? If it still fails I would worry that you have an issue with your pass-thru Or SPS2 as I know the aftermarket side is buggy to say the least.

+2
Ð Awarded
Agree
Juan Diagnostician
California
Juan
 

I have attempted various times and I get a massage update not found, also tried BCM registration and supposedly the key is registered but the antitheft lamps is solid with no start.

0
Ð Awarded
Richard Diagnostician
Costa Rica
Richard
 

Perform the 30 minutes without success, after clearing the immo codes the vehicle worked!

+1
Ð Awarded
Justin Mobile Technician
Utah
Justin
 

If your security worked on the old BCM I would recommend cloning the new BCM with the data from the old BCM. There are quite a few guys on here, myself included, that can do that for you. You will just need to ship both units to me. Shoot me an email. …

0
Ð Awarded
Juan Diagnostician
California
Juan
 

I will let you know if my customer decides to wait thanks for your time

0
Ð Awarded
Alexis Owner/Technician
New Jersey
Alexis
 

Just a quick question before performing sps are you choosing (replace and program modules) because if you are choosing (reprogram only ) then that could be your issue... also once flash is programmed then you should continue to marry modules. Also if memory serves me correct I think you must have a new blank key available when ever trying to marry a new bcm to vehicle . BCM must marry to theft…

0
Ð Awarded
Juan Diagnostician
California
Juan
 

Yes I been doing the replace and program module but I haven’t used a new key since my costumer brought me 3 keys I been trying with his old keys, definitely will get a new key and try it this way thanks for your help

0
Ð Awarded