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Pinpoint Test H: Spare Tire Low Pressure Sensor No Operation

WARNING: This page is about a different car, the 2011 Jaguar XKR, 2011 Jaguar XK, 2010 Jaguar XKR, and 2010 Jaguar XK. However, it is still accessible from the selected car via links, so may be relevant.
  1. H1: ESTABLISH THE TYPE OF SPARE WHEEL AND TIRE ASSEMBLY INSTALLED 
    1. Establish the type of spare wheel and tire assembly Installed.

      2. Is the spare wheel a mini/space saver type? 

      YES:  Tire low pressure sensors are not installed to mini/space-saver spare wheels. Tire low pressure sensors are installed to full size spare wheels only. The DTC is to be ignored and no repair action is required.

      NO:  Go to H 2.

  2. H2: ESTABLISH THAT THE SPARE WHEEL HAS A TIRE LOW PRESSURE SENSOR INSTALLED 
    1. Establish that the spare wheel has a tire low pressure sensor installed, considering the following additional information:
      • a) As a visual confirmation, the tire low pressure sensor has a metal valve stem rather than a rubber one.

        • Is a tire low pressure sensor installed? 

        YES:  Go to H 3.

        NO:  A new spare tire low pressure sensor should be installed. Note: Refer to the note above the DTC index about replacing components which may remain under manufacturer warranty. Refer to the relevant section of the service information.

  3. H3: CONFIRM OPERATION OF THE SPARE WHEEL PRESSURE SENSOR 
    1. Deflate the spare tire, in close proximity to the vehicle, until it is completely deflated.
    2. Complete an ignition cycle to ignition on and verify that the instrument cluster reports a spare tire pressure warning for approximately 20 seconds.
    3. Re-inflate the spare tire, in close proximity to the vehicle, to the recommended spare tire pressure.
    4. Complete an ignition cycle to ignition on and verify that the instrument cluster no longer reports a spare tire pressure warning.

      5. Does the instrument cluster continue to report a spare tire pressure warning? 

      YES:  Go to H 4.

      NO:  No repair action is required. It is possible that the customer may have placed items in the vehicle's luggage compartment that prevented correct RF reception.

  4. H4: VERIFY THAT THE SPARE TIRE LOW PRESSURE SENSOR ID HAS BEEN CORRECTLY PROGRAMMED TO THE MODULE 
    1. Remove tire low pressure sensor. Record the 8 character hexadecimal ID written on the casing.
    2. Use the approved diagnostic system to read the spare tire sensor ID from the module. Refer to the relevant procedure in the service information.
    3. Compare the IDs from steps 1 & 2.

      4. Do the IDs match? 

      YES:  Replace the spare tire low pressure sensor. Refer to the relevant installation section in the service information.

      The identification for the sensor must be programmed into the tire pressure monitoring system module using the manufacturer approved diagnostic system. The identification code is provided on a label with the complete assembly and is also printed on the casing of each sensor.

      NO:  Program the spare tire sensor ID, recorded in step 1, to the module using the approved diagnostic system. The identification code is provided on a label with the complete assembly and is also printed on the casing of each sensor.

      Repeat test to ensure correct operation. GO to H 3.

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