I have a 00 I30 and my autodim mirror does not seem to work. The green indicator light comes on but at night or when I cover the sensors with my finger nothing happens. Anyone got some info on the subject? Also I have found a number of replacement mirrors at salvage yards, most have compass and or temp. My current mirror is just autodim. If I got a new mirror with the computer could I install it directly into my 00? Would the compass and temp work?Thanks guys.

Compass and temp are integrated into the mirror, so yeah, they'll work even if your car didn't come with them. Wiring for power should be the same, and that's the only wiring involved.

Amosnorider wrote:I have a 00 I30 and my autodim mirror does not seem to work. The green indicator light comes on but at night or when I cover the sensors with my finger nothing happens. Anyone got some info on the subject?

It's an auto dim, therefore it needs bright light to hit the sensor in order to dim. Covering and night time have no adverse affect. Shine a small light or have someone park behind you hit their brights.

There should be two sensors, one facing forward, the other on the mirror face. The mirror compares the brightness of the two to decide if it should dim the mirror or not. With my older mirror, it automatically switches to "auto" mode when the forward sensor sees it's getting dark outside. At that point it'll dim if it sees bright lights behind the car. But if the forward sensor sees daylight, the dimming is completely disabled unless forced manually.

Thanks for the info. I now realize how it's supposed to function. But I have been driving this car every night for 8 months now and I've never seen the mirror change at all. Maybe the sensors are bad or possibly another component. Not really sure how I could test it. Btw if I get a newer mirror with the temp and compass how does it get the info on the outside temp if it's not connected to the thermo on the climate control?

I'm pretty sure the mirror's thermo display is actually separate from the car's own exterior temp display. It must have it's own sensors...maybe located on the windshield mount or perhaps you install them yourself. I do know that all Nissans from that era and newer with auto-dimming mirrors actually have Gentex/Homelink add-on mirrors that replace factory mirrors when requested as an option. So you could always call Gentex and ask them where the temp sensors are located for their mirrors. Their website isn't very helpful as far as that goes, unfortunately.