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40 Posts
Hi all,
Trying to figure out my no-brake-lights issue that just started. None of the brake lights work, including the third brake light; all other rear lights (tail lights, reverse, turn signals) are operable. Initially checked the fuse which was fine and the bulbs are all good. Multimeter at the switch shows no voltage on either contact...
Without a schematic, I've been reading up on other related threads and it seems that the 'filament monitor' (or corroded connectors to) can sometimes be to blame but I'm not sure where to find it. It sounds like some cars have it attached to the antenna mount but I'm not finding it there. I've also heard reports of it being behind the carpet lining on the rear drivers side somewhere around the top of the wheel well; pulled it back and couldn't locate it there either... Another thread suggested it might be behind the glove box. I'm not really looking forward to looking there unless I'm sure I'm going to find it.
Anyone know if I'm missing something simple to check for no voltage at the brake switch? If it is likely to be the filament monitor, anyone know exactly where I might find it on an 89?
Thanks in advance!
BD
Trying to figure out my no-brake-lights issue that just started. None of the brake lights work, including the third brake light; all other rear lights (tail lights, reverse, turn signals) are operable. Initially checked the fuse which was fine and the bulbs are all good. Multimeter at the switch shows no voltage on either contact...
Without a schematic, I've been reading up on other related threads and it seems that the 'filament monitor' (or corroded connectors to) can sometimes be to blame but I'm not sure where to find it. It sounds like some cars have it attached to the antenna mount but I'm not finding it there. I've also heard reports of it being behind the carpet lining on the rear drivers side somewhere around the top of the wheel well; pulled it back and couldn't locate it there either... Another thread suggested it might be behind the glove box. I'm not really looking forward to looking there unless I'm sure I'm going to find it.
Anyone know if I'm missing something simple to check for no voltage at the brake switch? If it is likely to be the filament monitor, anyone know exactly where I might find it on an 89?
Thanks in advance!
BD