V reg Vauxhall Vectra. Is the small brown wire that feeds the interior map lights switched or fused ( apart from the light fitting itself).
Also is the diagnostic plug under the handbrake OBD-2 compatible.
Thanks Mike.
Any plain brown wire is an earth wire which is connected to the chassis of the vehicle. Positive feeds are red for permanent +12v (fused KL.30 on the inside of the fusebox lid), and black for +12v ignition feed (fused KL.15). You may have a grey wire at the lamp which is connected to the door switches.
As for the diagnostic plug, it is unlikely that the ECU is OBD2 compatible, as most Vauxhalls used a different diagnostic standard until about 2001/2 for petrol models and 2003 for diesels (this is also model dependant).
HTH
Anthony Remove eight from email to reply.
MotorsForum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.