Electrical Issues (2013 Dodge Dart Aero 1.4T)
Hey everyone, I’m having a bunch of electrical issues that seem related and I’m trying to figure out where to start. My Dart has been acting up across multiple unrelated systems:
Power mirrors have never worked since I owned the car (checked fuses)
Driver master window switch is inconsistent (sometimes doesn’t respond)
Door unlock button on the driver door often won’t work unless the car is turned on
Back-up camera almost never works most of the time, sometimes it will randomly work but not for long.
Occasionally weird electrical behavior after the car sits for a while
Codes / related symptoms:
I have a C2129-13 code (battery voltage / EPS circuit open)
Battery voltage on startup drops to around ~11V
Charging voltage when running is about ~14.2V
I’ve also had ABS / low voltage type codes in the past
It feels like multiple modules are getting unstable or losing communication, especially after the car sits. Once it’s running, most things behave better, but not always.
I’ve already checked obvious fuses and did basic visual inspections, but I haven’t dug into wiring harness grounds or BCM connections yet.