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3rd Gen Engine and Drivetrain -> 2003-2007 5.9 liter Engine and drivetrain discussion only. PLEASE, NO HIGH PERFORMANCE DISCUSSION!

code P0646??

   
Old Jun 12, 2009 | 05:33 PM
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bradler
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From: Bellingham, WA
code P0646??
anyone know what code P0646 is?
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Old Jun 12, 2009 | 05:37 PM
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bradler
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Does P0646 Low Voltage Detected At The A/C Clutch Relay sound right?

just had the a/c recharged with 134a wonder if they tripped the code while working on it?
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