- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Hey Jon do you have a security light lit on the dash ? There is a starter enable relay that is energized by the pass key decoder module - anti-theft system ! There are more relays under the dash right side, I/P relay center ! My service info shows relays at the back center of engine compartment , these are cooling fan relays -two , A/C compressor relay , maxi fuse relay center an blower motor relay .
If you replaced the compressor unit, normally R-12 or what ever is used, is evacuated and thus they create a vacuum, then recharge the system to the proper level of gas/ pressure. Vehicles have a vacuum controlled shut-off valve to stop or reduce the flow of anti freeze from the engine to the heater core, near the condenser. There is sometimes a pressure control valve or switch to control, when the actual compressor unit clutch engages to start to pump the gas to cool the cabin area of the vehicle.
There are also fuses/ circuit breakers near the left front fender well under the hood, and left driver's side under left side of dash. I am presuming that the clutch assembly on the compressor functions properly engaging/ disengaging, when system is properly "charged."
Looks like the low pressure switch gets power from a 10amp ac fuse. Power then goes to the ac relay which is powered on by the ac heat controller on the dash. Power then goes thru the high pressure switch to the compressor. The ac relay is grounded to the body. Do you have power on the lite and dark green wires going into the relay and is it grounded ?
check your fuse box for a blown ac fuse, fuse box usually under dash, sometime under the hood of the car usually on drivers side. bad switch? check if you hot wire lead might be pinched and grounded out or broken wire between battery and switch
My 97 Rodeo had the same problem. No Tail lights, no. Dash lights. There is also an annoying buzzer that goes with the set telling you the lights are on, there is no key in the ignition and your door is open. (you don't notice it when it's gone but you sure notice it when it's back) The Fuse (taillight Illum) was good, The Light relay under the hood was good and all bulbs were good. What fixed this problem was replacing the tail light relay which is located in a panel just to the left of the brake pedal also called the kick panel.Inside there are 3 relays. I replaced the one in the middle and got everything to work. If you need to identify the relay you can put your hand over it and then turn the lights on and off. The correct relay should click. Mine was the middle one. Hope this helps someone because it stumped me for months.
If it blew cold air after freon added and 5 days later blew warm, you may have a leak in the system. Also check and see if compressor comes on if not you may have an electrical issue, relay for compressor,coil on compressor, etc.......
Turn signals depend on a small relay switch to function. It makes an audible clicking noise when the signal is engaged. If there are no blown fuses in your box, then this is my next suspect.
This relay switch is typically located under the dash near or on the fuse box panel. Even on a 1994, this relay should be a plug and play item.
Other thoughts. Make sure all bulbs are working. Some older models come on but won't blink when a bulb is out. There are other relays mounted in a box under the hood. Check all your fuses, and relays... before tearing it all apart.
Do your hazard lights work? If these are out as well, then its a sure bet that little relay is bad.