Need to know how to replace the headlamp relay in a 2004 chevy monte carlo

POSSIBLE FAN RELAY OR MOTOR IS BAD

Stuck relay. Remains closed. Best guess!

Don't waste your time looking for a headlamp relay. You will not find one. 1983 Monte Carlo does not use a headlamp relay. Your problem is most likely a defective headlamp dimmer switch. It is located about halfway down the upper left side of the steering column. It is secured by the same screws that mount the ignition switch. It is activated by a metal rod that pushes down on it when you pull back on your turn signal lever. It looks like the picture below.

It should be in the fuse/relay box under the hood. You can also call the dealer and they will tell you over the phone if they are a reputable place.

the problem must be that your headlamp motor must be under repair or some thing must have jammed.

Does the car have DRL ? daytime running lamps Do you know how to test automotive electrical circuits using voltage drop testing . Do you know how to use a DMM - digital multimeter ? How to read an use a wiring diagram to find testing points in an electrical circuit ? IF not you probably won't be able to find the problem .
Electric Testing Techniques You Need to Know
Mastering Voltage Drop Testing with Pete Meier and Jerry Truglia
You will need wiring diagrams http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model and engine size . Under system click on lighting ,then under subsystem click on headlamps . Click the search button then the blue links . Check B+ voltage to the fuse's ,check the headlamp relay in the left insturment panel junction block . Do you know where that is ? Your owners manual should say .

change the" turn signal flasher"

check relay

ck fuses/ck head lamp relay under hood hi s i asume head lights still dont work