heated door mirror issue

[avcar]

Hi guys
Got an issue which has been there for a while. looking to fix this
The switch top left

on the door to operate the heated mirrors comes on when it it pressed, however the light on the switch goes on then off. needless to say the heated mirrors dont work. i have tested the switch which works ok any ideas? common issue?

[Bunta]

Whatever controls the amount of time the heater element runs (either a set time or a temp gauge) may be faulty.

[NH-503P-3]

How is it wired? To the defroster? Or something else? I've got a set of these mirrors and the switch also. Gotta get em in before winter. I have my heated seats wired to the defroster also but I'm not sure if my defroster is working because my seats don't get warm for long.

[avcar]

Will have to trace the wiring back from the switch

[cp[mike]]

this feature was not included on American cars, so you'll find very few people here are familiar with the wiring and how that system works. I would suggest that you track down a full Honda Repair Manual (usually produced by Helms... you can find copies on the internet) and check the wiring diagram inside.

[avcar]

this feature was not included on American cars, so you'll find very few people here are familiar with the wiring and how that system works. I would suggest that you track down a full Honda Repair Manual (usually produced by Helms... you can find copies on the internet) and check the wiring diagram inside.

yes you are right had not thought of that, thanks unless folks from Canada use this site?

[Bunta]

this feature was not included on American cars, so you'll find very few people here are familiar with the wiring and how that system works. I would suggest that you track down a full Honda Repair Manual (usually produced by Helms... you can find copies on the internet) and check the wiring diagram inside.

I have the HELMS for the 1990 Accord and there is no mention of heater mirrors. It is possible there are regional service manuals that would go into detail on that feature though.

[AhYesCB7]

What car is that switch out of? I got mine out of a CL and I swear I never saw any little light on it?

[Raf99]

this feature was not included on American cars, so you'll find very few people here are familiar with the wiring and how that system works. I would suggest that you track down a full Honda Repair Manual (usually produced by Helms... you can find copies on the internet) and check the wiring diagram inside.

Yep and unless you have a non-NA car the car also was not wired for this. So someone would of went through a good deal of trouble to wire and install the components to make this work. Is the switch wired? (take it out and look)

[avcar]

What car is that switch out of? I got mine out of a CL and I swear I never saw any little light on it?

its from a 92 Accord 4th gen UK spec

[Raf99]

its from a 92 Accord 4th gen UK spec

Sounds like it would have it, I'm not 100% sure. If so, the components are most likely in the door. But you still need to know what wires to check for power, etc, etc. So, you need to get a manual to fix this issue. But I'd at least check the fuse first.

1. Is the power source wire for the switch getting a signal? (no = fuse ?)
2. Continuity in the wires? (broken wire)
3. Do the mirrors work if we supply power?

... broken wires, broken switch, ......

The list goes on. Get a manual or start tracing the wires, one by one.

[Ghostwhite]

There is a wiring diagram for the heated mirror circuit in the honda manual I have, I will try and get a copy of the page.

[Ghostwhite]

Here is a basic pic.