2009 Torrent electrical issue

[Ttyess]

My wife’s Torrent is giving me a head ache. At this point, the drivers head light does not work in high or low, but the DRL’s work. As in I only get high and low beam on the pass side and only DRL on the drivers. Bulbs were changed. Fuses are all good. Has power to left hand high and low fuses, but nothing to the light.
Any ideas ??

 

[melsg5]

did you test the bulb sockets for power with a voltmeter?
did you check that the ground for the sockets with an ohm meter?

 

[Ttyess]

Low beam has nothing for voltage. High beam has the DRL 5 volts to it. And the DRL’s work fine. So a ground is not the issue. Switching on the lights manually to bypass the ambient light sensor doesn’t do a thing either. Is there a relay that powers the high and low circuits Independant of the DRLs ?

 

[melsg5]

fuses and relay are in the owners manual page 5-100 but I dont see a relay listed for the lights, just independent fuses. You need a wiring diagram for the circuit.
http://www.vadengmpp.com/owners-manual/pontiac/2009-Pontiac-Torrent.pdf