Resistor Pack for Fan Control

So everyone doesn’t believe I’m just the kind of guy who works on Subarus (believe me, I’m a Chevy guy!), I had to do a small amount of work on my Silverado today.

My 06 Silvy has an auto-temp climate control console (RPO: CJ2) in it. This is a pretty nice feature to have, but there is one downside which many people with this feature have found. When the resistor pack goes bad, the fan cuts to high and will continue to run even when the engine is shut off and the key is out of the ignition! What a PITB! It takes you forever to find the underhood fuse to shut the blower fan off. It wasn’t too bad … this time. That’s right. I’ve rode this bull before about a year and a half ago.

At least this time I didn’t have to solder wires together like I did the last time. Mind you, the first resistor pack lasted about eight years. The second only the year and a half. It really isn’t hard to change out the resistor pack, though. You just pull three small screws out of the blower fan shroud which covers and quiets the fan, then pull two small screws out of the resistor pack to remove it. If you haven’t done this before, you have to clip the harness to pull the old resistor pack out, then you have to attach a new wire which comes with the new resistor pack to provide the power throughput for the fan. Pretty simple really, made easier if its been replaced once already.

Here’s what the resistor pack and wiring looks like fresh out of the box:


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