No Bright Headlights
10-02-2017, 10:35 AM
#1
Thread Starter
Join Date: 10-02-2017
Location: Jordan MN
Posts: 7
No Bright Headlights
The lights both go off when pushing the lever forward to bright. When pulled forward as if you are flashing someone, both lights work. I checked the fuses, and relays, all are good. I disconnected the battery to reset the computer, same problem. I then bought a used swithch assembly from a u-pull it yard. Same problem, no brights. Any other suggestions This is on a 2010 HHR
10-02-2017, 11:36 AM
#2
Administrator
Join Date: 10-13-2011
Location: Welland,Ont Canada
Posts: 36,431
Check both bulbs it’s not unheard of they burn out, now are you saying the brights work when you pull the lever, cause the low beams and the hi beams light up when you pull the lever to flash to pass.
10-02-2017, 12:28 PM
#6
Senior Member
Join Date: 03-06-2010
Location: Ohio
Posts: 6,869
Check the ground wire on the drivers side inner fenderwell, to the left of the fuse box (left from the driver's seat, or to the right with your head in the engine bay)... It's a smallish black wire.
I had a similar situation when a rodent chewed that wire completely off.
I had a similar situation when a rodent chewed that wire completely off.
10-02-2017, 01:17 PM
#7
Technical Moderator
Join Date: 01-23-2009
Location: Fredericksburg, Virginia
Posts: 24,660
Does your car have fog lights? If so; after-market or factory?
Flash to pass is on a separate circuit; the low beam component is direct to the relay, the high beam component goes through the BCM. So, are you positive that the high beams do work on FTP? If not it has to be a wire between the BCM and the relay #72. Or a wire between the switch and the BCM.
The headlights have separate grounds, and each serves both hi and lo.
Each head light has separate fuses for hi and lo.
High beams are supposed to be disabled when fog light are on.
Flash to pass is on a separate circuit; the low beam component is direct to the relay, the high beam component goes through the BCM. So, are you positive that the high beams do work on FTP? If not it has to be a wire between the BCM and the relay #72. Or a wire between the switch and the BCM.
The headlights have separate grounds, and each serves both hi and lo.
Each head light has separate fuses for hi and lo.
High beams are supposed to be disabled when fog light are on.
10-02-2017, 05:12 PM
#9
Thread Starter
Join Date: 10-02-2017
Location: Jordan MN
Posts: 7
Thanks for the tips. The ground wire seems corroded, so I will clean that tonight. The car has factory fog lights which we seldom use. When they are off, we got no brights when the switch is turned on. When on, everything is dark as well.when the brights turned on. The brights do work when the FTP is activated, which made me assume the filaments are good
