HELP! The problem is that i dont have the two rear reverse lights and the rear left stop light. I checked the bulbs and fuses (no.16 interior box) and they are ok. I have an amp grounded to the rear left screw (the one that scews the rear headlight) but i disconected the wire and there is still no light from the reverse and stop...
What´s wrong then...???:( :(

The reverse lamp problem is most probably a faulty gearbox switch. It is situated on the top of the 'box with a brown (?) two-pin connector to it. Remove the connector and bridge the terminals - if the circuit and bulbs are OK the reverse lamps will work, confirming a switch fault.

Are you sure the stop lamp bulb is OK? It might look OK........:eyes