I cannot get my air conditioner clutch on my 1996 Honda Accord EX to engage. I've checked the fuse and relay. The fuse is good but the power is not going to the relay. If I can find the power that comes to the relay, I can fix it. I need to know what activitate the relay and the power that the relay push to the clutch. I need to know where they come from.
I've been looking for a circuitry that shows it and a drawing that shows the air conditioning fan. Please help.
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Re: Compressor Magnetic Clutch - 1996 Honda Accord EX
Looks like fuse # 8 "heater control relay- ac clutch relay-cooling fan" fuse runs the 12 volt side " black and yellow stripe wire " pcm or ecm runs the ground side "red -blue stripe wire"- what else do you need?
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check the hydraulic clutch is releasing /engaging the clutch plate. Replace the clutch master cylinder if there is no clearance at the clutch slave cylinder piston rod. If cable clutch replace the cable as it is not allowing the clutch to engage.
Think about this:
Can you supply voltage to the clutch to engage it? Remove the connector and use wire to directly energize the clutch. The only thing that I'm unsure of is whether it is 12 volts.
Check first if clutch engaging. Sometimes the clutch engages but when the tempt in the engine compartment rises the clutch disengage. This is due to a problem with the magnetic clutch assembly located behind the clutch. Has two wires that will produce the magnetic field to help engage the clutch. It requires special tool to r/r and some vehicles can be done with the compressor installed.
Sounds like the A/C Compressor Clutch isn't engaging. With the A/C turned on and the engine running, open the hood and see if the center of the A/C Compressor pulley is rotating. If it isn't, then that's why there isn't any cold air. Check all the fuses and relays then check to make sure that the A/C Compressor signal wire is getting 12V when the A/C is switched on. If the compressor clutch isn't engaging, the fuses and relays are good and the signal wire to the compressor is getting 12V then the A/C Compressor itself may need to be replaced. This is, of course, assuming your are certain that there is refrigerant in the system and it is at the correct pressure!
Does the compressor magnetic clutch operate the compressor? If so, then the coolant has probably leaked out of the system. If clutch doesn't operate the compressor, possible fuse blown, bad relay, or open winding in compressor clutch.