I am having issues with my 13 volt battery

Codes as follow:
P0AC4(To turn on Check engine lamp)
P0AC4(To turn on Check engine lamp)



p061B
Internal Control Module performance
U180F Control module communications Error
P0AC4 (To turn on Check engine lamp)
p0069 (All ready replace the MAP sensor an Cleared CEL a month 1/2 ago)
P0C32 Battery Cooling system (it also points to the 12volt system)



i restarted the tahoe everything seem to run fine from the transmission to the Battery cooling fan...


the temperature was 144F for the Transmission

 

Your high voltage hybrid battery pack is overheating. Open it up and vacuum up all the dust, including any dust trapped underneath the modules. Also give the fan blades a good cleaning with a wet towel. Vacuum up all the dust at the intake vent. See dnt1010's post: https://www.greenhybrid.com/forums/f...tml#post266746

For the P0069 code, it is your BARO sensor most likely, not your MAP sensor.

Conditions for Setting the P0069 DTC
The control module detects that the difference between the BARO sensor pressure and the
MAP sensor pressure is more than 5 kPa when the ignition is ON before engine startup.
OR
The difference between the BARO sensor pressure and the control module predicted BARO is
more than 60 kPa when the engine is running.
The above conditions are met for 1 second.

P061B
1. DTC P061B may set when Hybrid Battery power output is limited. A reduced hybrid battery
power condition is most noticeable during high electrical loads such as Autostop to Autostart
transitions. Inspect for hybrid battery DTCs or conditions that would reduce available hybrid
battery power such as:
Hybrid Battery Module undervoltage / P0AFA and various DTCs
Hybrid Battery Module overvoltage / various DTCs
Hybrid Battery Module voltage variation / P0AFA, P0BBD
Hybrid Battery overtemperature / P0C32
Hybrid Battery exposure to extreme cold

 

thanks I restarted the engine and the lights were off on a start later in the day



I also replaced the 12Volt Battery the P0069 is still present

long term Fuel trims are +32 when the code is set hence the P0430 along with it

I got a brand new 12 volt battery (The old battery was going to die sooner or later anyways when it got very cold or after 3 days it would be flat )

760CCA rated battery $165 with 5 years FREE replacement these are very hard to find with 5 years as they only give you 4 years on these AGM batteries normally
it was at walmart if anyone was interested

 

i did not get the P0AAD,P0AAE,P0AAF,P0A1F.. which is a secondary code.

but there was momentary power outage. when it was starting from Auto Stop



I was able to successfully crank the engine... a few seconds later


What I really need to do is fix the P0069 it causes an engine Runaway.. Events



all i get is information on

Diesel engine runaways

when i search Gas Engine runaway

it's pretty clearly the Hybrid Electrical motor is Running the engine away It thinks the engine is not starting.. Good thing it's NOT in gear when it does it

it Acts like its in neutral when it happens I have to shut it off and restarting fixes it

tell it happens again... 6,000 RPM IS FULL THROTTLE! (that is the Highest it has done
2k to 3.5k rpm is common)
it did not even hit the REV Limiter .... I figured out pressing the BRAKE peddle Calms the revving down...



I press it as hard as possible (just in case) don't want it taking off on me