Climate controls 2001 Rodeo

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Climate controls 2001 Rodeo

Postby sskrieger81 » Fri Jun 16, 2017 7:12 pm

I have a 2001 Rodeo and when I am using the AC, fan speed 1-3 it works fine but when I put it on speed 4 the AC indicator light turns off and it blows hot. I go back to speed 1-3 and it works fine again. Any ideas why the 4th fan speed has an issue?
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Re: Climate controls 2001 Rodeo

Postby Buster28 » Sat Jun 17, 2017 3:18 pm

When the AC switch is in the On position +12 Vdc is connected to one side of the AC On lamp. The other side of the lamp is connected to the Fan Control Switch. Whenever the Fan Control Switch is in any position other than Off it provides a DC return ("ground") causing the AC On lamp to illuminate. The Fan Control Switch also switches the resistor bank that controls the Fan speed. If the lamp turns Off and the Fan quits operating in the #4 position the Fan Control Switch is defective. My 02 Rodeo Sport has the same problem but I am to lazy to replace the switch even though I have a replacement on hand.
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