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Can you tell me what the code P1668 means on my 2001 Land Rover Discovery?

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Can you tell me what the code P1668 means on my 2001 Land Rover Discovery? Please, thank you.

Vehicle: 2001 Land Rover Discovery

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The P1668 code means there is a problem with the Anti-Theft system.

P1668 LAND-ROVER - Engine Anti-Theft Signal Circuit High
Read more: https://www.autocodes.com/p1668_land-rover.html

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