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133 Posts
Discussion Starter #1
Does anyone know what regulates/controls the rolling key code on a 2003 Range Rover 4.4L? I keep getting a rolling code error and sometime a no start until I clear the fault. Have already replaced with a new key, but did not correct issue. Guess I should change out whatever component controls this fault.
 

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2006-2009 Range Rover MkIII / L322
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59 Posts
i believe its the immobilizer control unit. I too am have issues with my immobilizer, i cant even scan my car because there is also an issue with the OBD2 port on my RR ! its a bit of a nightmare.
 
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