1999 suburban: head lights checked fuses owners manual headlamps

Posted on Feb 6, 2014

1999 suburban, head lights do not work. checked fuses and circuit breakers, they are fine. In the owners manual it says headlamps are protected by a circuit breaker in the lamp switch, but of course it does not bother to tell you where to find it Hmm. That`s interesting. It sounds like maybe the DRL relay may be bad. Here are some schematics that

1999 suburban: head lights checked fuses owners manual headlamps
Click here to download the full size of the above Circuit.

show how it switches between the DRL function and the "regular" headlight function. If you have a multimeter or a test lamp, you can do some tests to see what component may be bad. If not, I would start with the DRL relay (as a "logical guess"). I was thinking more about the DRL Relay. If it is bad, then it is possible that both the DRL will not work, and the regular headlights. But there are a couple of possibilities, including the DRL module. That is why I was asking about having a multimeter or test light to do some troubleshooting. Without the troubleshooting steps, we are just "throwing parts & money" at it (guessing). Ask-a-doc Web sites: If you`ve got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers. Justanswer. com. Traffic on JustAnswer rose 14 percent. and had nearly 400, 000 page views in 30 days. inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.

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