I have small problem with wiring ... previous owner those car , mix somethig in wiring:
1)When do you switch the interior light you don't have any chance to start car (no ignition). I think it's a kind of simple alarm.
2) If you open glove box (glove compartment) the interior light to be on.
strange things ...
Please about advice or wiring diagram for VOLVO 340 DL 1988 DIESEL SEDAN (5 doors)
I suggest you find a copy of the haynes manual for this car, and trace the wiring diagrams in the back. It shouldn't be hard to put right, but its probably a little hard to understand over the net!
I found solution of this problem. Inside the car, near fuses box its locate connect to the ground (brown wires) and plug dosn't have a connection. After repair all problem with wires disappear