AAC Multifunction Sensor


I'm debugging my AC issues... car sat for 4 years.


Also my AAC was reporting weird numbers, it has CO, NOX, air temp, and I believe dew point. All the numbers were weird, so replaced that... the picture shown shows where it is. 


I pulled the grill shown, pulls up, might use a small flat blade screwdriver to release the catches.


Now you can see in this "duct" on the left side,


 also the multi-function sensor ?? I see it described as the multi-function pollution sensor too, 2118300472 ??

looks like it us just behind the positive terminal of the starter battery. AAC KLA




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