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International Automotive Technicians Network
Re: 03 silverado heater
Posted to Technical Discussion Forum on 12/4/2007

Hi Rusty...

I looked this one up... 2003 with manual controls; the resistors are on the power side of the fan.

The power feed to the resister assy with integrated relay is from 2 different sources. All speeds except hi see the HEATER A/C FUSE in the left s... Login to read more.