V70 instrument panel illumination issue

The instrument lights are subdued with the headlights on so it doesn't affect your night vision. When the driving lights are on, it is assumed that it is daylight and you need much brighter instrument lights. That is normal.

Again,

The problem is I cannot see the instrument panel at all when driving at night. This is a problem. The explanation does not fit the question.

It is illuminated with driving lights on, and completely off when headlights are on.

Did you turn up the dimmer? As another poster already stated, when using just driving lights the dash is at full brightness. With headlights on it goes to the dimmed mode since it's used at night and is controlled by the dimmer. If the dimmer has no effect I would suspect that to be the culprit.

I think the dimmer works. I suspect a headlight switch problem - changing the position of the headlight switch causes the instrument lamps to be extinguished.

skrev i en meddelelse news: snipped-for-privacy@nntp.charter.net...

I agree, the lightswitch has been a problem on many C/S/V 70's

-- Brian Sørup Volvo V70 2,5T Aut.

Just found out from our local police department that the tail lights are out also, only when you turn on the headlights.

Damien