Originally Posted by Legioona
I have the light sensor under the windshield. According to the 2007 repair manual there are three DRL relays.
I have a 07 Limited. I do not have DRLs.
Has anybody succeeded in adding DRLs? Is it as simple as putting in the three relays and enjoying the DRLs or is there more to this?
I just downloaded the 2007 wiring diagrams to make sure I was looking at the same thing as you.
According to the diagrams the normal high beams would not operate properly if any
of the 3 relays were missing. I cannot find anything in the drawings that shows any optional wiring for cars sold without DRL's.
Based on the diagrams I suspect all RAV's are wired the same way, and the DRL's are controlled by a signal from the ECM. Perhaps this is an option that can be turned on and off with the Techstream software,
Have you done a physical inspection to see if these relays are missing from your RAV4?