First you have to make some observations. Are the head lights full brightness, dim, or don't turn on at all? If they're dim, the charging system is suspect or the battery may have a shorted cell. If they don't turn on at all, check the large fuse that's bolted in on the under-hood fuse box and the smaller positive battery wire where it bolts to that fuse box. Be sure those nuts are tight. It's common on any car for them to work loose.
If in doubt about the battery, measure its voltage or see if it will crank with a jump-start. I have to add this because we read about it WAY too often here, ... Be sure to connect jumper cables positive to positive on both cars, and negative to negative. Switching them on one car can do serious damage to both.
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Thursday, February 7th, 2013 AT 11:44 PM