DRL dosent come on i auto

[H3Sweden]

Hi!
I have a Hummer H3-2006 (earlie). I wounder how the DRL- lights work. On my car I have separate DRL lights in he front witch is integrated with my turning signals. The DRL lamps also works as my parking lights. Now, to my problem. The other day I noticed that the DRL didn't come on i auto mode, the lamps are intact because when i put the light knob in parking mode or headlight mode they come on. I have checked the fuse #39 and it seems ok. The light sensor is ok, if i cover it the headlights comes on. Could it be the relay? Do anyone know the part number of the relay?

Jim

[HUMTECH]

Transmission has to be in gear for the drl lights to come on

[anjy834u]

Transmission has to be in gear for the drl lights to come on
i did,nt quite understand ur statement. could u explain please ?

[cdmintmi]

they wont come on until you put the truck into gear. Meaning if the truck is (P) park, they wont come on. They come on when you shift the transmission out of Park. Thats how the automatic transmission version works anyway, dont know about manuals transmission