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The dash lights in my 2009 Holden Captiva are coming on and the car is losing all power. It’s also throwing all sorts of fault codes.
When things like a car’s lights start to develop a mind of their own, the car’s body computer is sometimes the root cause. This is the computer that controls everything from the central locking to the lighting and the climate control to the cruise control, as well as a lot more in between. If this computer module starts playing up, all sorts of weird things can take place, including the dashboard lights coming on of their own doing. If this happens overnight or when the car is parked for a long period of time, it could easily drain the battery and leave you with no electrical power.
An auto electrician is the obvious solution, but try this trick at home first. Remove the negative battery terminal on the car and leave it disconnected for an hour or two (or, even better, overnight) this is sometimes enough to reboot that body computer and return the car to normal operation. Be aware though, that even if this fixes the problem, it may recur sometime down the track. But at least then you’ll know what to do next time.
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