a/c problem - Toyota Nation Forum : Toyota Car and Truck Forums

budweiserdrinker44 · 12-19-2010, 09:39 AM

97 camry 5sfe. as soon as i turn the heat on in the car the a/c kicks on. i push the a/c button and it stays lit. tried swappin out the switch with one from another car. also both fans at radiator click on as soon as i turn on the heat. any ideas?

***Mister_Perkins*** · 12-19-2010, 09:54 AM

If your Air Conditioning button is LIT up (Pushed in), both cooling fans will run. They should turn off when the button is pushed out (Released .. Not lit). If it stays lit, I would say you have a wiring issue.

Check your ground wires on the Fan Main relay.

budweiserdrinker44 · 12-19-2010, 09:58 AM

thankyou verry much i will check this out right now/after lunch

budweiserdrinker44 · 12-19-2010, 12:24 PM

unless i checked it wrong the grounds are fine and so are the relays.

***Mister_Perkins*** · 12-19-2010, 12:38 PM

So your AC light is always lit up, correct?

***Mister_Perkins*** · 12-19-2010, 12:48 PM

Pull your AC Fan relay #2 and check pins 3 and 5 for continuity. If theres continuity your fan relay is stuck open

budweiserdrinker44 · 12-20-2010, 07:00 AM

that makes sense. i will try that today. once again thank you.

***Mister_Perkins*** · 12-20-2010, 07:06 AM

you could also check Fan relay #3 (Pin 2,3) and Fan relay #1 (pin 3,4) and Fan Main Relay (Pin 3,4)

To check for proper ground, you remove each relay and probe the following pins (On the car) and connect them with the body, checking for continuity

Fan Main Relay ---- Pin 2 and 4
Fan Relay #1 ------- N/A
Fan Relay #2 ------- Pin 5
Fan Relay #3 ------- Pin 4