Question about 2004 GMC Canyon
It is a two way bulb that I have replaced with a working bulb from another socket. the socket is clean and the contacts are proper position. The fuses have been checked except for the park lamp relay. Being that the other park lamps work, I didn't think that was the problem. So, what can I do to further troubleshoot this problem?
Posted by Anonymous on
Both park lamps should be powered by the same wire, so follow wire from non-working light until you find a break or bad connector.
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Posted on Jan 02, 2017
SOURCE: I have a 2003 GMC
the first thing would be to test for power and ground at the wires going to the sockets, the most common reason for this is the sockets go bad inside.this is a complete unit, the main connector is where you would check for power first then go on to socket, most of the time the connector for the main power feed goes bad, it has a connector for all the wiring and then splits all wires to there location inside headlight asm. again testing with a testlight would be very helpful i think you will find a bad socket for each light out or the main connector on the headlight asm is bad. good luck. have a good day.
Posted on Mar 14, 2011
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