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The second generation was introduced as a 2003 model at the 2002 Chicago Auto Show, based on the new Impreza platform, featuring several fine-tune improvements over the past model.

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How do I fix the compass in the mirror in my 07 Forester?

The compass won’t turn on no matter what I do, even if I put the key in all the positions.

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Here’s an image of the wiring for the compass mirror from the 2007 Forester service manual.

Check for battery (yellow/green wire pin 3) and ground (black wire pin 2) on the cable connected to the mirror. Also with the vehicle in reverse gear check for battery on the brown/yellow wire on pin 1. The ignition has to be in the ACC position to test for the battery on pin 3. The ignition has to be in the ON position to test for battery on pin1. Be safety aware when testing for this battery supply. The ignition has to be be turned to ON and the vehicle needs to be in reverse gear. The engine doesn’t have to be started though.

If there is no battery on pin 1 when the vehicle is in reverse gear it may be a faulty switch. Either an inhibitor switch (automatic transmission model) or the back up light switch (manual transmission model), or perhaps the wiring somewhere between the switch and the mirror.

There are two fuses used in the compass mirror circuit. Fuse #18 and #9, but I suspect that they are both OK because they both supply a lot of other circuits in the vehicle as well and you haven’t said that anything else is also not working.

Fuse #18 is also for the keyless entry, stop light and brake switch, ABS module, inhibitor switch (AT), backup light switch (MT) just to name some and fuse #9 is also used for the clock and the audio.

Block Image

(click on image to enlarge).

If all the power and earth checks out OK at the mirror’s cable connection it may just be a faulty mirror.

If testing all this seems too daunting, contact a reputable, professional auto electrician and ask for a quote

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start with fuses. then any exposed wiring. then it would be a disassembly project.

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Galen Smyth wird auf ewig dankbar sein.

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