I did make the mistake of leaving the battery connected during the radio install. It gave me an airbag code, I took it to a Volvo tech and he cleared it for free but warned me that there were a plethora of other electrical codes coming up, but he cleared them without telling me what they were. It ...

Hello, I recently joined the club with a 2004 v70. Drove great for a few weeks but then started showing electrical issues. Headlights clicking on and off, transmission shifting poorly, gauges turning on and off, and the engine was throwing the following codes: ECM-801A
CEM-1A59
CEM-8F43
CEM-1D08
CEM ...