06' Tribeca with Front A/C fan not working - SB9T.com
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Old 07-05-2012, 07:41 AM   #1 (permalink)
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Default 06' Tribeca with Front A/C fan not working

Hello all, I have a 06' b9 with 100k miles and the front A/C fan just stopped working. The rear A/C blows cold air, so I think it's just a fuse that I can't find or the relay? The display works and shows the fan at different speeds, just no air at the front. Anyone have any suggestions? Thanks
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Old 07-17-2012, 07:12 PM   #2 (permalink)
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Most likely the HVAC transistor or the blower motor.
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Old 07-20-2012, 05:37 PM   #3 (permalink)
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Thanks for the tip. From the info that I've been able to find, I think the problem is the motor. Unfortunately, either one isn't inexpensive for just the part.
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Old 07-21-2012, 09:48 AM   #4 (permalink)
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Ok, weird problem. I removed and inspected the blower motor. I hooked it directly to the battery and it runs. I then hooked it back up to the connection in the car and it runs for 1-2 seconds and stops. Now I'm not sure if this is a problem with the motor or the resistor or something else.

Anyone with any suggestions? Thx.
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Old 07-31-2012, 06:08 PM   #5 (permalink)
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It is the transistor, Subaru for resistor. Check the ground at the blower motor plug. If there is no ground at the blower motor the transistor is shot. Buy it online for 90 dollars and 15 minutes to change out. Good luck.
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Old 08-09-2012, 04:40 PM   #6 (permalink)
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Thanks for the tip and recommendation. I will try it and let you know if it works.
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Old 09-25-2012, 01:30 PM   #7 (permalink)
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How did it work out?
The suspense is killing me.

Last edited by avk; 09-27-2012 at 01:21 PM.
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Old 07-29-2017, 05:13 PM   #8 (permalink)
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I've got the exact same symptom, fan spins for 1/2 a second each time I plug it into the connector, but spins continuously on a power source. I assume it is the controller. Denso 077800-0901. I don't get why I can't find the Denso made in Japan part anywhere new (except, I guess, the dealer). It's either ebay, the dealer or some undoubtedly inferior replacement part from Wells or Duralast.

Changing the subject to aftermarket parts, my buddy had the ignition module go bad in his Oldsmobile Cutlass. He bought a replacement (Wells brand) at Autozone. It didn't work so he took it back. They put it on the tester and it was bad. So he told them to go get a new one out of the box and test it. It was bad. I'd rather have a used one out of a crashed Range Rover than aftermarket, if I can't get a new Denso.

I will post next week after a try a replacement controller.
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Old 07-29-2017, 11:14 PM   #9 (permalink)
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https://parts.johnsonsubaru.com/oem-...ZyPWxheWVyXzI3
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