President Blower Motor AUC Sensor Issue

My 2008 Nissan President with a gasoline engine has a climate control blower motor that's not working. I suspect the AUC sensor. I've checked the wiring diagrams and think it might be a bad cable or plug connection. Has anyone had similar issues with the cabin air sensor, odor sensor, HVAC sensor, or general air conditioning sensor?

4 comment(s)

AUC sensor issues can be tricky. Have you checked the fuse for the blower motor? Sometimes it's the simple things. Also, do you have a multimeter? Checking the voltage at the sensor connector might give you a clue before replacing anything.

I've checked the blower motor fuse, and it's fine. Could you elaborate on the expected voltage range I should see at the sensor connector? Knowing the correct parameters would help.

Since the fuse is good, and if you are not experienced with this I'd suggest taking it to a workshop. Given the symptoms and your suspicion of the AUC sensor, they should be able to diagnose it quickly and accurately.

Following your recommendation, I consulted a workshop. They confirmed a defective AUC sensor cable connection, as I suspected. The repair, including cable replacement and recalibration, cost 95€. The blower motor is now working. Thanks again for your help.

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