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Sedans Toyota Camry Older Camry Maintenance and Repair
558 messages, Last post on Nov 20, 2009 at 11:36 AM
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I've been trying to figure this out, so I don't buy the wrong thing. I see 3 fan relays and one a/c relay. Which relay is just the rad fan on the drivers side 1,2 or 3? The a/c relay says a/c. Also, if it's the switch, which I have no idea what and where that is. Would that effect both cooling fans? I can't afford to go have it all tested and it's overheating with stop and go driving, fans not coming on at all, even when I turn on the air. Thank you for your help 
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Replying to: debshane (Apr 27, 2009 6:11 pm) The symptoms you are experiencing are what? Car overheats (only in stop and go driving), and you notice that neither of the cooling fans turns on......even when the a/c is on? Is that correct? What is the significance/purpose of this question: "which relay is just the rad fan on the drivers side" Is that to mean that the drivers side fan does not work, but the other one does?
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Replying to: kiawah (Apr 28, 2009 3:06 am) So does this explain enough, or is it more confusing? I wish I just had enough money to go have it taken care of, but I don't. So, I press on to the answer, hopefully. Thanks 
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Replying to: debshane (Apr 28, 2009 8:10 am) In the meantime, did you check your fuses? I'd suspect a fuse first. If your owners manual doesn't tell you which one, I'll look it up and tell you later this week.
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Replying to: kiawah (Apr 28, 2009 10:01 am) You have a 4 cylinder, correct? First step.... There are three fuses feeding this circuitry. You need to check all three to verify that they are okay. - 15A ECU-IG This is in the passenger compartment, drivers left knee - 30A RDI FAN These next two, are in the engine compartment, on the passenger side wheel well, up towards the front by the headlight. These two fuses sit between the raidator relay and the engine main relay. - 30A CDS Fan Let me know whether you find any of them an open circuit. Also, verify that your turn signals and wipers work.
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Replying to: kiawah (Apr 30, 2009 5:46 pm) Thank you for that info, the wipers and the turn signals work. I think the a/c fan motor may be burnt out. I did a direct power feed to it and nothing. The other one too. Maybe I did it wrong. So I will check the fuses as you say. Tomorrow I will let you know what if anything is good or bad. Thank you, Deborah |
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Replying to: debshane (Apr 30, 2009 8:52 pm) But yes, applying the power directly to the motor is a good way to test that the motors are okay. One of the wires to the motor goes to +positive 12volts, and the other to -engine ground. The way this circuitry is built with the relays, the fan motors will either run at half speed or full speed. But ignore that for now. When you test the motors by applying the voltage directly to them the way described above, they should run at full speed.
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Replying to: kiawah (May 01, 2009 2:51 am) If you have a relay not working you can pull it and apply a 9v battery to the in and out terminals, the diagram is usuallyon the side. However it should click if you turn the A/C on with the key in the run position I believe thats how it works. It energizes all relays when A/C is on. Since none of the positions are working it sounds like the fan motor on the radiator. Also if you can get to a pull your own parts at a junk yard, you can swap out relay's, no troubleshooting involved, or just replace the motor on the Radiator. I think that's the problem. Use some jumper cables and connect it to the Radiator motor when you get it off your car, to verify working like in the post before.
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Replying to: rearwheeldrive (May 01, 2009 11:51 pm) - IF Ignition is ON 'and' AC Pressure is low 'and' coolant temperature is low, then relay 1 is energized (Norm Closed points), and the Radiator fan is OFF. - IF Ignition is ON 'and' either the AC Pressure is high 'or' the coolant temperature is high, then relay 1 is not energized, and the Radiator fan is ON full speed, getting it's power from the RDI Radiator Fuse. - IF Ignition is ON 'and' the AC is ON 'and' the AC pressure is low 'and' the coolant temperature is high, then relays 1/2/3 are all energized, and both fans will work at low speed (fans wired in series) getting their power from the CDS Fan fuse. - IF Ignition is ON 'and' the AC is ON 'and' the AC pressure is high 'and' the coolant temperature is high, then relays 1/2 are not energized, and both fans run at full speed. The Radiator fan gets it's power from the RDI fan fuse, and the AC condenser fan motor gets it's power from the CDS fuse. |
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My older 1995 Camry LE 2 door stopped at traffic light and now won't start! I had gotten oil change done at the dealer the same day around 3pm an dcamry stopped at traffic light at 11:pm! I had to get it towed to hoime. Now the car won't start. What could be wrong with this car?
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