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Pinpoint Test W: PSCM POWER SUPPLY FAULT

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2006 Jaguar XKR, 2006 Jaguar XK8, 2005 Jaguar XKR, 2005 Jaguar XK8, and 2004 Jaguar XKR. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK THE PERMANENT SUPPLY TO THE PSCM 

    Disconnect the PSCM electrical connector, SP05.

    Measure the voltage between SP05, pin 05 (NR) and GROUND.

    Is the voltage less than 10 volts? 

    YES:  REPAIR the circuit between the PSCM and battery. This circuit includes the passenger side fuse box, (fuse 01) and the high power protection module. For additional information, refer to the wiring diagrams. Test the system for normal operation.

    NO:  Check for DTCs indicating a faulty circuit. Contact dealer technical support for advice on possible PSCM failure

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