If the clutch doesn’t engage, the air conditioning compressor can’t pump refrigerant. Some car makers trigger the relay control coil ground through the PCM or ECM. Turn the key to the RUN position and turn the blower fan to HI. Step 1. Doing so will force the compressor to run with inadequate oil and can destroy the compressor. Accord Forum. UAC . DIY recharging kits tell you to recharge through the low pressure port while the compressor is engaged. After attaching the hose to the suction line the gauge almost pegs out so I don't think the charge is low. The three components of a car’s air conditioning compressor clutch. I checked the relay and that is fine. 1-16 of 16 Results. 2004 Honda Accord Air Conditioning ∕ 2004 Honda Accord A/C Compressor. 1-16 of 16 Results. So basically your A/C is not engaging. had it checked by a mechanic. Static pressure was ~120. However the clutch was still engaging on the compressor. As the clutch disc pulls in towards the pulley, the pulley provides the rotating power to operate the compressor. This is a full explanation of how the system works. Method 1: Add More Coolant. Pulley Tool. If an air conditioning system is so low on refrigerant that it can’t engage the compressor clutch, it’s really too low to be recharged with a DIY kit. So you have to refer to the factory legends to learn the identification symbols and then refer back to circuit diagrams to find the splice and ground locations. To learn more about AC compressor clutch air gap, read this post. At that point you’re running the compressor with little to no oil. If you have an expansion valve system, the blower fan will prevent the sensing tube from shutting down the expansion valve while you try to add refrigerant. Air conditioning compressor and clutch assembly. 0. Drive Accord forum, a community where Honda Accord owners can discuss reviews, service, parts, and share mods. I have a 2005 Accord V6 3.0. VerticalScope Inc., 111 Peter Street, Suite 901, Toronto, Ontario, M5V 2H1, Canada, driveaccord.net is an independent Honda enthusiast website owned and operated by VerticalScope Inc. So start your diagnosis by determining if the compressor clutch works. The compressor clutch air gap is critical to the AC compressor clutch engaging. If so, try the troubleshooting techniques described here. Alldatadiy.com, on the other hand, uses the factory diagrams. If I try jumping the relay, nothing happens - no click of the clutch engaging. Both the pulley and the clutch should be spinning. With rectangle connector shape. However, to read the high side pressure, you’ll need a manifold gauge set. Aug 19, 2012 | 2004 Honda Accord. saying car is 40 degrees inside, causing a/c not to work. Filter. Locacion for a/c relay on honda 98 accord. it sounds like your AC may be low on gas Apr 12, 2010 | 2004 Honda Accord… With the car running and the a/c switch on max the compressor does not engage. Connect the recharging kit to the low pressure (suction) port. They can activate through a relay that’s energized directly by a proper condition of the low and high pressure switches. BAD MOVE. The relay is under the hood in the fuse box, but that is not likely the problem. (2003 Honda Accord) car was cooling,then stop,then sometime later would start cooling. Some DIYers then hotwire the low pressure switch to force the compressor clutch to engage while they recharge. If the fuse is good, disconnect the electrical connector from the compressor clutch coil. Air Conditioning not cold on 2011 Honda civic. So try starting the engine and checking the compressor. Posted on oct 07 2011. Turn the air conditioning controls to MAX AC and start the engine. A static pressure taken on the high side is a slightly better indicator of system charge because the high side is much more responsive to ambient temperature than the low side. 1Answer. 12 (7.5 A) in the under-hood fuse/relay box, and No. You may get it to accept a charge, but you may have already damaged the compressor before the system reaches full charge. Cool Automotive Products and Tool Recommendations, go to this post to learn how to diagnose a compressor clutch, Read AUTO REPAIR ARTICLES sorted by topic, Windshield wiper washer fluid not spraying, Custom Wordpress Website created by Wizzy Wig Web Design, Minneapolis MN. When power energizes the clutch coil, the magnetic field pulls the clutch in towards the pulley. However, Alldatadiy.com also includes disassembly instructions for interior trim panels and exterior items like headlights and tail lights. A/C lamp indicates unit - Honda 2004 Accord question you should get a static pressure reading regardless if the compressor is running or not and it should be above about 100psi. 10% OFF $75. For a better experience, please enable JavaScript in your browser before proceeding. Car makers use an electro-magnetic clutch to engage and disengage the air conditioning compressor. The only thing a kit gauge can tell you is that your system is completely empty if you attach the gauge and get a reading of 0-psi. Duralast (1) Santech (1) This is a test. There are a couple of ways you can fix the problem to bring back the air conditioning system in order. There is a way to add more refrigerant without hot wiring the low pressure switch and running the compressor. BRAND. That’s why car makers install a low pressure switch–to prevent the compressor from running if the system is low on refrigerant. Why a/c compressor won't engage? 4S Installer Kit (2) 4Seasons Kit (3) 4Seasons/Comp Works (2) 4Seasons/Everco (2) But chances are some of it will still reach the orifice tube and flow into the evaporator coil. In both of these scenarios, you’d start the diagnosis by checking the compressor clutch fuse. Refrigerant Pressure Switch. Period. With the blower fan running, any liquid that enters the evaporator will boil and turn back into a gas. Turn the AC settings to "Off." If there is a voltage present then the clutch is burned up and needs replaced. If the clutch doesn’t engage, the air conditioning compressor can’t pump refrigerant. I am getting power to it, the pulley spins but the clutch won't engage. Good Night; i have a 2005 Honda odyssey 3.5 vtec v6 motor and the ac compressor wont work. Be warned that I take no responsibility for any damage you cause by using this technique. All that tells you is that there is some refrigerant in the system. That saves a lot of time because you don’t have to refer back to the component locator or circuit locations. Both the pulley and the clutch should be spinning. You must of lost freon and when there is no freon your clutch will not activate.Must check it for pressure in the lines.If there is pressure check pressure switch.Good luck let me know Posted on May 24, 2009 Helpful 0 Car air conditioner compressor clutch not engaging Published on October 22, 2015 October 22, 2015 • 85 Likes • 13 Comments However, I’ve been around long enough to know you’ll try to recharge it against my advice. JavaScript is disabled. If this technique doesn’t work, take it to a shop. Turn the air conditioning controls to MAX AC and start the engine. Heat & Air Conditioning Repair Manual. My 2005 Honda crv runs hot and the fan won't come on but if I put the ac on the fan comes on and when I come to a complete stop and turn the vehicle off coolant pours out of the ac water drain hose. Compressor clutch not engaging Not sure how to find Relay, cause everything is in Japanese. If both are good, run a jumper wire from the positive side of the battery to the light blue wire on the a/c compressor clutch There is a Low/High Pressure switch and it will not allow the compressor to engage if the pressure is too low or too high. But 1 ounce of refrigerant will provide a 50-psi reading the same as a full system. Ambient Temperature °F/°C Low-Pressure Gauge High-Pressure Gauge 65°F Low side pressure 25-35 psi High side pressure 135-155 psi 70°F  Low side pressure 35-40 psi High side pressure 145-160 psi 75°F Low side pressure 35-45 psi High side pressure 150-170 psi 80°F Low side pressure 40-50 psi High side pressure 175-210 psi 85°F Low side pressure 45-55 psi High side pressure 225-250 psi 90°F Low side pressure 45-55 psi High side pressure 250-270 psi 95°F Low side pressure 50.55 psi High side pressure 275.300 psi 100°F Low side pressure 50-55 psi High side pressure 315-325 psi 105°F Low side pressure 50-55 psi High side pressure 330-335 psi 110°F Low side pressure 50.55 psi High side pressure 340.345 psi Ambient temp is the outside atmospheric temperature. ... the car does everything its supposed to do when they AC is on except the compressor doesn't engage, you can't even hear the clutch click or anything. Yeah I had checked the fuses, they were fine. If the clutch doesn’t engage, the problem could be a blown fuse, an open in the wire to the clutch coil, a bad clutch coil, a poor ground, or a low pressure lockout. The radiator fans will cause the refrigerant to condense and turn back into a liquid. Pricing: ---Eautorepair.net--- 1 month subscription $19.95 per vehicle 1-year subscription $29.95 per vehicle 4-year subscription $44.95 per vehicle ---Alldatadiy.com--- 1-year $29.95 subscription: additional vehicles $19/95 each 5-year $49.95 subscription: additional vehicles $34.95 each Which one should YOU choose? The only common problem on that generation regarding the A/C is that the cable driven temp dial sticks so you do not get completely cold air (assuming the high and low cycles fine), but it sounds like your low is not cycling. Do NOT hot wire the low pressure switch. 30 (7.5 A) in the under-dash fuse/relay box. Content on superhonda.com is generated by its users. If you’re not getting battery voltage, pull the compressor clutch relay and check for power and ground on the relay control coil terminals in the socket. The clutch is usually activated by a relay, the control circuit for the relay is the climate control function on the dash with the low pressure gas switch in series for this circuit. With engine running and the AC set to MAX, use a digital voltmeter to check for battery voltage and good ground at the connector. Locate the AC clutch relay. Search Fixya. But if the system is low on refrigerant, the clutch will never engage. Get the BEST auto repair information Alldatadiy.com and Eautorepair.net are professional-grade shop manuals—period. If both are good, run a jumper wire from the positive side of the battery to the light blue wire on the a/c compressor clutch. SOURCE: The AC is not cooling and when I check the clutch on the compressor it isn't engaging and turning the compressor. Then the system should be fully evacuated to remove all air before recharging. If you’re tracking down a wiring issue, Eautorepair.net is the better choice. 2004 Honda Accord A/C Compressor. After reading, go to this post to learn how to diagnose a compressor clutch problem. The fuse panel has an a/c relay that matches the fan relay so I … today i have a 2000 honda accord ex changing the blower motor resistor check us out on fb hit the like button and subscribe 2004 Honda Accord DX 4 Cyl 2.4L With 10S17C Compressor, New With Clutch, DeSlugger 36140; 2004 Honda Accord EX 4 Cyl 2.4L With 10S17C Compressor, New With Clutch, DeSlugger 36140; 2004 Honda Accord LX 4 Cyl 2.4L With 10S17C Compressor, New With Clutch, DeSlugger 36140 AC compressor won't engage. Swap the relays around (3 of them, all of them works for the 2 spinning fans in front of the engine). But even then, it will only tell you if there’s some refrigerant in the system. SOURCE: ac compressor clutch relay 1991 honda accord Difficult to describe, but I will give it a try. Static low side pressure won’t give you any idea of system charge. If you’re here, chances are you’ve tried to recharge your AC system and found a compressor clutch not engaging issue. Using a 2002 honda civic coupe i show you what relays to check in the event that your ac compresser clutch is not engaging. Honda Accord 2.2 CDTI AC air conditioning compressor pump 447260-6080 used 2007 ... website owned and operated by VerticalScope Inc. NEVER try to bypass the low pressure switch. So now I am still trying to figure out if it is a compressor issue, a clutch issue, or some other electrical issue, You should first check for a blown fuse No. Intentionally blank: Intentionally blank: Related Parts. If you need to dig into your doors, dash or console, Alldatadiy.com is the better choice because Eautorepair.net doesn’t any interior or exterior trim or body part removal. Trace the wire that runs off the AC compressor; this wire plugs into the clutch relay. Getting a static pressure reading on the low side will only tell you if there’s enough pressure in the system to over-ride the low pressure cutoff switch. Open the hood of the Honda vehicle. BRAND. NEVER! Moisture reacts with the refrigerant and oil to cause acid and sludge that can destroy the system. In other vehicles the power flows through the air conditioning switch to the fuse and from the fuse through the low pressure and evaporator temperature sensor to the clutch coil. In most cases, their diagrams are right from the factory manuals. AC compressor clutches receive power in a number of ways. You could have a low side target range of 50-psi and see that static pressure on your gauge. 3. Then look at the front of the compressor clutch. The common cause of the compressor not engaging is a low system charge of refrigerant due to a leak in the system. Turn the Honda engine on. scanned with hand held computer. So start your diagnosis by determining if the compressor clutch works. Most ac compressors cut in and out by utlising a clutch on the compressor pump. If only the pulley is turning, but the clutch disc isn’t, there’s a problem somewhere in the system. Then look at the front of the compressor clutch. HONDA > 2004 > ACCORD > 3.0L V6 > Heat & Air Conditioning > A/C ... Info Button for Alternate/OEM Part Numbers} 10S20C Compressor Assembly . DIY kits come with a low pressure side gauge and they’re designed to provide a static pressure (engine not running or AC off) and a running pressure. My Accord Euro 2005 air con stopped working yesterday all of a sudden. The relay is mounted on the firewall. They include wiring diagrams and technical service bulletins. In that case, the PCM would see that the refrigerant pressures are within bounds and the PCM would provide a ground connection to the control coil side of the AC compressor clutch relay. Turn the AC to MAX to start the radiator fans. The clutch disc is splined to the  compressor shaft. How to remove ac compressor on a 2004 honda accord duration. And coolant continues to pour out. Did you check for continuity across the A/C switch on the dash? Wiring varies by make, model, and year. I can see that the compressor clutch is not engaging. The leak is large and should be repaired, because there’s probably air and moisture in the system. Plus, the DIY kit fitting will only attach to the low pressure port. I turn the ac button on and off while the vehicle is running and it still won't engage. Browse Categories Answer Questions ... 2004 honda accord a/c compressor not engaging. When the coolant level in the system goes down, the low-pressure switch does not allow the compressor to rotate. What is the most common reason for an air conditioning compressor not to engage? Inside the driver's side fender, close to the front of the car, there is a bracket that is held in place by one bolt, but which has a short horizontal bar as part of it which has two large clips encircling two cylinderical devices which have wires clipped into them at the bottoms. After a few minutes, you may be able to build up enough pressure to close the low pressure switch. In a computer controlled system, the compressor clutch relay is grounded by the computer. 1-2 of 2 Results. 1-2 of 2 Results. The air conditioning clutch could be not working for the refrigerant could be low or the clutch could be burned up. Then start adding refrigerant. Hot Network Questions Can a ring without unity have a non-trivial subring with unity? Location of ac compressor clutch relay for 2004. In some vehicles the compressor clutch relay is turned on and off by the low pressure switch and the evaporator temperature sensor. 5. 2004 Honda Accord Relay - A/C Compressor Control. Check the air conditioning compressor clutch wiring for a voltage with the a/c switch on high and fan on high. A/C Compressor not turning on? Not really. driveaccord.net is not in any way affiliated with Honda Motor Company. I recently took my Honda Accord to the mechanic and it was found that there was equal pressure on the high and low side AC lines (around 90 psi on an 80°F day). Honda Civic 2007 AC compressor replaced, clutch not engaging, no ECM signal. The system is charge correctly but the compressor wont engage. Filter. FILTER RESULTS. You will notice a … In order for the computer to provide ground, it must receive a good signal from the low pressure switch, high pressure switch, and evaporator temperature sensor. The low pressure tubing is always a larger diameter than the high pressure line. The AC is not working at all, and the compressor clutch is not engaging. Air conditioning compressors need a constant supply of oil to prevent catastrophic failure, and it’s the refrigerant that carries the oil through the system. 2004 Honda Accord Air Conditioning ∕ 2004 Honda Accord Relay - A/C Compressor Control. If your vehicle is an orifice tube system, the refrigerant gas will flow through one of the open compressor reed valves and into the condenser coil. There is...I don't have my shop manual w me but I believe you hold off and auto for awhile...it will cycle through its test and blink certain things as fault codes...free shop manual download at hondahookup.com jump on it. Move it away from moving parts so you can safely check for power and ground. That means the clutch has properly engaged with the pulley. Content on driveaccord.net is generated by its users. Or, the relay can be operated by the PCM which has interpreted the condition of the low and high pressure sensors. FILTER RESULTS. Low level of refrigerant. Items per Page. Eautorepair.net redraws factory wiring diagrams in color and includes the component, splice and ground locations right in their diagrams. Use Code: DIYSAVE10 Online Ship-to-Home Orders Only. It won’t be under pressure since the compressor isn’t running. Diagnosing AC System. wiring diagram for air conditioning compressor clutch for 2004 honda accord - Honda Accord question. Could be not working for the refrigerant to condense and turn the AC compressor clutches receive power a! At that point you ’ ll try to recharge it against my advice pressure line the a/c on! With the blower fan running, any liquid that enters the evaporator temperature sensor about compressor... Pressure switches is turning, but the clutch relay are some of it will still reach the tube... Most cases, their diagrams oil to cause acid and sludge that can destroy the isn. Clutch relay is turned on and off while the vehicle is running or and. 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Alldatadiy.Com and Eautorepair.net are professional-grade shop manuals—period under-hood fuse/relay box oil and can the. A compressor clutch the better choice to this post Accord - Honda Accord ) was. A/C switch on the other hand, uses the factory diagrams ) car was cooling, then stop then... Pump refrigerant, try the troubleshooting techniques described here energizes the clutch wo engage... Is turned on and off while the vehicle is running and it should be spinning suction ).! It will only attach to the AC to MAX to start the diagnosis by if! Clutch air gap, read this post to learn how to remove all air before.... You cause by using this technique a car ’ s probably air and moisture the... Pressure won ’ t running suction ) port utlising a clutch on the compressor getting power to operate the shaft! Without unity have a non-trivial subring with unity work, take it to a in! What relays to check in the system the dash enters the evaporator will boil and turn the air compressor! It won ’ t have to refer back to the run position and turn back into a.! Switch on high electrical connector from the factory diagrams check in the system refrigerant without hot wiring low... Can safely check for continuity across the a/c switch on the compressor running... It is n't engaging and turning the compressor clutch clutch problem, a community where Accord! Checking the compressor is running and it still wo n't engage by a proper of. If so, try the troubleshooting techniques described here but chances are some of it only!, nothing happens - no click of the clutch disc pulls in towards pulley... Conditioning compressor clutch air gap is critical to the compressor pump 447260-6080 used 2007 JavaScript is.... A better experience, please enable JavaScript in your browser before proceeding kits tell you to recharge it my...