So Hi everyone, I am new here, I have a citroen ds4 2011 diesel 1.6 semi automatic lovely bit of car, so my issue is I have a p1aa2 code I have put another battery not brand new but it was 100% charged and was holding 12.6v over night, tried clearing the code it did not go drove the car same issue it did not go, on the infotainment system I have a warning light of, electric fault please have repaired, and charge fault, however when plugged into the diagnostics it's at 14.8v to 15v and my eco does not work anymore i also have a service light, so this is where I am stuck I was in a accident, the front left was damaged badly I did have to replace the start stop completely and had to get a ground cable re done and that's about it I do have other code.
Forgot to mention I did change the voltage retaining device which with my research was the fuse board onto of the battery changed it yesterday and same issue no luck fuses all checked they're fine the fuse board wires checked they're fine so I assumed it was the relay but nope no improvements on the car. I have probably missed something obvious
P1aa2 voltage retaining device
B1601 Central Power Switch Positive
(+CPC) Relay Control Fault
B132A Air Conditioning Circuit Low
Pressure Safety Fault
OD80 Module GSM
I'm stuck someone please help
