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  #1  
Old 08-18-2011, 02:42 PM
vincentb
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Default Blower or a/c dont turn on

My wife has a 2007 Nissan sentra the a/c will not turn on at all an the lights that light up the knobs for the a/c are not on. but the other dash lights work. I cant seem to find what the issue is..
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Old 08-18-2011, 04:03 PM
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NissanTech NissanTech is offline
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Start by inspecting the connector behind the A/C control.
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Old 08-18-2011, 04:08 PM
vincentb
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Quote:
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Start by inspecting the connector behind the A/C control.

I took the Hvac control out and everything looks fine. Anyway to bypass just the control to see if the a/c or blower will kick on?
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Old 08-18-2011, 07:56 PM
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I'm not sure how can you bypass the just the control unit, but you can by pass the blower motor and the A/C compressor. See attached diagrams.
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Blower or a/c dont turn on-image03-gif   Blower or a/c dont turn on-image01-gif   Blower or a/c dont turn on-image02-gif  
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Old 08-18-2011, 08:00 PM
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One more thing. Since you already have the control unit out, check if there is power at the connector Pin #1 (white) and #2 (Brown) wires.
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Old 08-18-2011, 08:43 PM
ritter ritter is offline
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If your blower don't work your a/c will not work.
If Your heat works ! Then your resistor need replacement.?
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Old 08-18-2011, 08:48 PM
vincentb
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Going to take me a while to understand this. Im not good at this part...
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Old 08-18-2011, 09:13 PM
vincentb
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One more thing. Since you already have the control unit out, check if there is power at the connector Pin #1 (white) and #2 (Brown) wires.

Yes i set me metter up and im getting 12v on both
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