EcoWarrior Posted November 6 Share Posted November 6 My kid has a 2013 Focus SE that is experiencing difficulties with the low beam headlights. We have inspected the fuse in the compartment under the glove box, and it is functioning properly. We have measured the voltage at the light housing socket, which registers 8V for the parking light, low beam, and turn signal when inactive. Activating the turn signal and the parking lights results in a voltage of 12V. The low beams maintain a constant voltage. We attempted to replace the headlight housing due to significant yellowing, however this did not provide any improvement. We replaced the switch in the automobile since the dimmer for the dashboard lights was ineffective in adjusting the brightness. That also resulted in no alteration. The high beams are operational. These are halogen lamps. Link to comment Share on other sites More sharing options...
CryptoGuru Posted November 6 Share Posted November 6 Have you evaluated the dipped beam bulbs? If you have changed the dash panel light switch, have you examined and tested the light combination stalk/switch? Link to comment Share on other sites More sharing options...
EcoWarrior Posted November 6 Author Share Posted November 6 We have tested two distinct sets of bulbs. Are you referring to the stalk for the high beams in the light combination? We have not verified that, since I could not conceive that it would cause the low lights to malfunction. The stalk activates the high lights; I am uncertain how to do additional testing. The connection is powered, however it fails to provide the necessary 12 volts to activate the low beams. Link to comment Share on other sites More sharing options...
CryptoGuru Posted November 6 Share Posted November 6 "I could not conceive that this would cause the low beams to malfunction." It functions dip/main beams. From the owner's handbook High beam and low beam Link to comment Share on other sites More sharing options...
CryptoGuru Posted November 6 Share Posted November 6 Advance the lever to alternate between high and low beam. Link to comment Share on other sites More sharing options...
EcoWarrior Posted November 6 Author Share Posted November 6 Thank you; we will consider acquiring another one, since I am uncertain how to do the testing. Link to comment Share on other sites More sharing options...
EcoWarrior Posted November 6 Author Share Posted November 6 I acquired another light combo stalk, which also proved ineffective. We have replaced the bulbs, housing, light selection switch, and light stalk. None of these methods have been effective. I am beginning to suspect that the issue may lie with the BCM at this juncture. Are there any more ideas? Link to comment Share on other sites More sharing options...
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