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Thread: P1668 BCU serial link timeout fault

  1. 16th June 2011, 12:05 PM #1
    LRT's Avatar
    LRT
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    P1668 BCU serial link timeout fault

    Our Discovery II V8 engine spins over but fails to start.

    The following fault comes up on the Bearmach Hawkeye diagnostic tool:

    Fault 148 P1668 Anti-Theft Alarm System BCU/BeCM Serial Link Timeout Maximum Value Exceeded. Immobiliser signal- CAN data bus.

    Has anyone been able to rectify this problem?
    LRT.
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  2. 17th June 2011, 08:10 PM #2
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    LandyAndy
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    Only a guess,flat battery in key fob??? Cheap easy check.
    Andrew
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  3. 17th June 2011, 08:46 PM #3
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    LRT
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    Key fob battery

    Hi Andrew, we also thought that, but have recently replaced the battery in the key fob. However, the fault still occurs. LRT
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