Thanks, I also tried using my Tech II but didn't have any luck.
Thanks, I also tried using my Tech II but didn't have any luck.
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Do you have High beams.
Denny
2018 GMC Denali HD 2500 L5P.
I have high beams and all four bulbs work for that. if you flip the lever to low beams they all go out. If you turn the headlight switch off and E brake off I have DRL's. ???????
If I turn the switch to parking/running lights I get the DRL's which look like low beams. ???? but if you rotate it to headlights it has no low beams. And only high beams if you flip the turn signal high low beam to high beam setting. ????
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I think that the DLRs get there power through the dash sw when it is in the off position. That being said you have high beams and not lows. It is my opinion that the high/low stem sw is ok. The DLRs have to go through the low position on the stem sw. It is my opinion that the dash sw is the problem. just sayin.
Denny
2018 GMC Denali HD 2500 L5P.
Thanks Denny. At least it's the easier switch to replace.
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Before you replace the sw make sure that was plugged in properly.
Denny
2018 GMC Denali HD 2500 L5P.
Did that thanks
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