2011 t-660. Headlights will sometimes not turn on. If I turn the switch off and on a few times, they will eventually turn on. Anyone experienced this issue before? Fuse? Switch?
KW headlights not switching on
Discussion in 'Trucks [ Eighteen Wheelers ]' started by Steve2804, Sep 21, 2017.
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Are you waiting for the ecm to do its pre-check before you start the truck?
Trying to start the truck too fast can screw up the communication between the different computers. -
Yep. I always wait for the clicking to stop!!
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Could be the switch, if the fuse was bad it wouldn't work at all
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Check one of the black relays in the fuse panel. I had similar issues on my t600.
SAR Thanks this.
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