QuestionDiscovery 2 2000 my mirror compass has quit working, it does not come on at all. I can not seem to find a fuse that is associated wuith it any ideas?
AnswerHi Rick,
lucky you...when it works!
Here is some helpful info that will assist you determining where the problem begins:
Certain vehicles have an interior rear view mirror that features an automatic photochromatic dimming function and an electronic compass with LED display.
The compass mirror is a self-contained unit and does not interface with any other vehicle system or electronic control unit. The mirror is fixed to a metal bracket attached to the windscreen.
A three pin connector provides the electrical connection to the mirror's internal circuit board:
Pin-1 of the connector provides the 12V power supply to the board via the auxiliary relay located in the engine compartment fusebox. When the ignition switch is turned to the 'II' position, a 12V supply is provided to energise the coil of the auxiliary relay via fuse 26 in the passenger compartment fusebox. The auxiliary relay's contact supply voltage is provided from the vehicle battery through fusible links 1 & 7. When the relay's contacts close, a 12V supply is fed to the compass mirror circuit board via fuse 15 in the passenger compartment fusebox. This is the supply voltage feed for the mirror's internal compass.
Pin-2 of the electrical connector provides the path to earth.
Pin-3 of the electrical connector is a 12V ignition switched supply voltage (position 'II' of the ignition switch). The supply voltage is provided to the mirror's circuit board via fuse 25 in the passenger compartment fusebox, and the reverse lamp switch (normally closed) for vehicles with manual transmission or the starter inhibitor / reverse light switch (normally closed) for vehicles with automatic transmission. This is the supply voltage feed for the mirror's photochromatic dimming function.
If you 'poke n probe' the pins, you should be able to determine if your mirror is functioning correctly.
I wish you luck with this...
JohnMC
NB: nice Disco. I rather like the 2000 model.
