Omega Owners Forum

Omega Help Area => Omega Electrical and Audio Help => Topic started by: Jan Suhr on 13 July 2020, 18:14:21

Title: Reverse lamp switch Auto trans Ar25
Post by: Jan Suhr on 13 July 2020, 18:14:21

I think I have problems with the feed to my reverse lights. Checking at the connector coming to the lights I have no voltage there. Other lights are are working at the rear.

Is there a similar switch as on the manuals or is this controlled in some other way?

Thanks

Title: Re: Reverse lamp switch Auto trans Ar25
Post by: TheBoy on 13 July 2020, 18:20:57

I'd have to double check, but I think on autos its from the range switch.

Title: Re: Reverse lamp switch Auto trans Ar25
Post by: Doctor Gollum on 13 July 2020, 19:10:32

Quote from: TheBoy on 13 July 2020, 18:20:57

I'd have to double check, but I think on autos its from the range switch.

This ;)

Title: Re: Reverse lamp switch Auto trans Ar25
Post by: Jan Suhr on 13 July 2020, 20:51:33

On page 5081 (P50811) in the 2002 wiring diagram that was available for download a while ago I see that for Automatic transmissions there is a relay K161 that controls the Reverse lights. And the power that feeds the lights through a fuse to the relay is F9 (10A), might be that one that has broke, first thing to check.

Now I just have to find that relay  :-\

Title: Re: Reverse lamp switch Auto trans Ar25
Post by: Doctor Gollum on 13 July 2020, 21:20:39

More likely to be a heat damaged wire on the selector loom between the switch and ecu... It is stuffed between the left cats and the engine/bulkhead ;)

Title: Re: Reverse lamp switch Auto trans Ar25
Post by: Jan Suhr on 13 July 2020, 21:32:39

It was the fuse that had broke.

Silly that the manual booklet says that it is fuse #15 for the reverse lights  (and a bunch of other stuff).

There is a bit of a difference in the electrics on Facelifts compared to earlier models.

Title: Re: Reverse lamp switch Auto trans Ar25
Post by: Doctor Gollum on 13 July 2020, 23:08:16

Why did the fuse blow?

Title: Re: Reverse lamp switch Auto trans Ar25
Post by: Jan Suhr on 14 July 2020, 07:35:46

Quote from: Doctor Gollum on 13 July 2020, 23:08:16

Why did the fuse blow?

Probably because i poked around with the volt meter in the connector. Then when the manual said that fuse #15 was for the reverse lamps and that fuse wasn't blown I suspected something else.
All sorted now thanks to correct documentation.