2011 silverado iat / maf wiring
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=127917
Printed Date: July 04, 2025 at 1:24 PM
Topic: 2011 silverado iat / maf wiring
Posted By: sargeneild
Subject: 2011 silverado iat / maf wiring
Date Posted: July 14, 2011 at 10:59 PM
I am attempting to install a variable resistor on my Internal Air Temperature sensor. I bought the manual, but it doesn't have a wiring diagram for this. On this model, the IAT is part of the MAF wiring harness.
The instructions say that the sensor prongs should have a resistance of 2-3k ohms and the wires should have a charge of 12V. The two tan wires have the right resistance, but not the voltage. A couple of the wire combinations have 12V, but not the resistance.
I am told that 2007-2011 wiring on the silverado/sierra is the same.
Please help!
-------------
~BWN~
Replies:
Posted By: i am an idiot
Date Posted: July 15, 2011 at 4:46 AM
Are you reading voltage across the resistor at the sensor? If so, try grounding the black meter lead, check voltage on each of the tan wires. Chances are, one of the tan wires will read 12 volts.
Posted By: sargeneild
Date Posted: July 15, 2011 at 7:40 PM
I tried... I only get 12V off of the pink wire, but the receptacle to it doesn't get the right resistance with any of the other connector receivers.
-------------
~BWN~
Posted By: sargeneild
Date Posted: July 15, 2011 at 7:51 PM
I get 5V off of one of the tan wires.
-------------
~BWN~
|