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Exactly where is relay for rear HVAC on 2003 Suburban located?

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Old December 19th, 2011, 7:13 PM
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Default Exactly where is relay for rear HVAC on 2003 Suburban located?
Hey folks...I have a 2003 Suburban and the rear HVAC unit stopped working...Not blowing air at all...Checked fuses and they are good...Checked all wiring and it seems that there is no power to back, but power to the upper control unit...We are thinking it could be a relay to the rear HVAC...Can someone tell me where that is located?

Any other suggestions to check?
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Old December 19th, 2011, 8:26 PM
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Welcome to the forum... give this a read and see if it helps...
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File Type: pdf
2003 aux blower diag.pdf (37.1 KB, 741 views)
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