After replacing the humidity sensor replacement lost all power to the car?

Tiny
MOHAMMAD ALAHMAD
  • MEMBER
  • 2012 CHRYSLER 300
  • 5.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 70,000 MILES
The circulation wasn't working so I replaced the humidity sensor and shortly after a couple of minutes the lightning bolt showed up and it’s not going, and I lost all power to the car.
Tuesday, May 14th, 2024 AT 1:34 PM

3 Replies

Tiny
AL514
  • MECHANIC
  • 4,688 POSTS
Hello, try unplugging the humidity sensor and see if the vehicle will start. The sensor is on the Lin bus data network, its possible you have a bad new sensor and its pulling the network down. I would also check Fuse 45 15amp, its the ignition fuse to the humidity sensor, was this an aftermarket sensor or did you get it at a dealership?
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Tuesday, May 14th, 2024 AT 7:05 PM
Tiny
AL514
  • MECHANIC
  • 4,688 POSTS
Here is the wiring diagram for the sensor and its power feed.
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Tuesday, May 14th, 2024 AT 7:09 PM
Tiny
AL514
  • MECHANIC
  • 4,688 POSTS
These are the other components on Fuse 45, of the interior fuse panel.

https://www.2carpros.com/articles/how-to-check-a-car-fuse
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Tuesday, May 14th, 2024 AT 7:13 PM

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