blower motor is full blast even when the controls are off?

2010 NISSAN ROGUE
125,232 MILES • 2.5L • 4 CYL
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SPEEDHOBBIT
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The blower motor is full blast even when the controls are off. I have changed the AC amp control as well as the blower relay. Where do I go from there?
Nov 11, 2017 at 8:00 PM
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STRAILER
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It looks like the motor is controlled by the air conditioner amplifier. You will need to run some wiring/power and ground testing before you confirm the amplifier is out.

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

and

https://www.2carpros.com/articles/how-to-check-wiring

M50 is the AC amplifier in the diagrams (below).

Please run some tests and get back to us.

Cheers, Ken
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May 28, 2021 at 11:48 AM