Swapped Modules now no start
#11
Re: Swapped Modules now no start
one or two batter could be bad you will have to see if you have a second code
OR you will need to Test each battery module to find the broken one much better then shipping 40 batteries
as one or two of the modules are hitting the 1.5 volt threshold value
Tell us the Year there is a TSB for the BPCM
There was a Secret Recall
it mentions the battery and reprograming the module as well as other modules
it does not specify if it's the High voltage battery though.. the only way to know is to run the vin at the dealer and see if they were done
OR you will need to Test each battery module to find the broken one much better then shipping 40 batteries
as one or two of the modules are hitting the 1.5 volt threshold value
Tell us the Year there is a TSB for the BPCM
There was a Secret Recall
it mentions the battery and reprograming the module as well as other modules
it does not specify if it's the High voltage battery though.. the only way to know is to run the vin at the dealer and see if they were done
Last edited by Tahoe_08; 10-21-2019 at 03:15 AM.
#12
Re: Swapped Modules now no start
one or two batter could be bad you will have to see if you have a second code
OR you will need to Test each battery module to find the broken one much better then shipping 40 batteries
as one or two of the modules are hitting the 1.5 volt threshold value
Tell us the Year there is a TSB for the BPCM
There was a Secret Recall
it mentions the battery and reprograming the module as well as other modules
it does not specify if it's the High voltage battery though.. the only way to know is to run the vin at the dealer and see if they were done
OR you will need to Test each battery module to find the broken one much better then shipping 40 batteries
as one or two of the modules are hitting the 1.5 volt threshold value
Tell us the Year there is a TSB for the BPCM
There was a Secret Recall
it mentions the battery and reprograming the module as well as other modules
it does not specify if it's the High voltage battery though.. the only way to know is to run the vin at the dealer and see if they were done
It's a 2008
#13
Re: Swapped Modules now no start
The GM scan tool can read the Twenty voltmeters inside the pack. Most likely the P0BBD is one of those 40 modules sagging under load for the three seconds it takes for that code to set.
#14
Re: Swapped Modules now no start
May have figured it out. Wish I could get a nice log off of tourqe of this as I seen on another post, but it looks like I have 1 cell block that is drifting periodically. It isnt always different but it comes and goes quite often.
#16
Re: Swapped Modules now no start
So how are the cell blocks laid out, which end starts the pack?
#19
Re: Swapped Modules now no start
In God We Trust... all others show data!
Looks like weak module in Block 7
Keith, can he remove the pair and perform some sort of "light load" test like running an old school headlamp to see which one of the pair is weak?
Just my $0.02 question of the day.
Looks like weak module in Block 7
Keith, can he remove the pair and perform some sort of "light load" test like running an old school headlamp to see which one of the pair is weak?
Just my $0.02 question of the day.
#20
Re: Swapped Modules now no start
A high wattage auto bulb will do. I prefer one of these:
Will hit a module with about 60A. Best to use a separate attached voltmeter for the start/end currents. Record current, hit with tester for 10 seconds, record loaded voltage, terminate load.
A module performing like the one in the graph will stick out like a thumb on fire.
In addition to the utility of this exercise, you now have a 12V load tester, so you'll always know if your 12V is/are good.
https://www.amazon.com/Neiko-40510A-Volt-Battery-Tester/dp/B07B3R4TS6/ref=sr_1_19?keywords=schumacher+bt-100&qid=1572289332&sr=8-19
Will hit a module with about 60A. Best to use a separate attached voltmeter for the start/end currents. Record current, hit with tester for 10 seconds, record loaded voltage, terminate load.
A module performing like the one in the graph will stick out like a thumb on fire.
In addition to the utility of this exercise, you now have a 12V load tester, so you'll always know if your 12V is/are good.