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Pinpoint Test F: Car Current Position Not Stable

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. F1: SYSTEM CHECK FOR DTCS 
    1. Check the system for DTCs which may be logged.
    2. Are any system DTCs logged? 

      YES:  Carry out repair actions to correct the DTCs logged.

      Re-check the system for car current position not stable.

      NO:  Go to F 2.

  2. F2: VEHICLE SPEED INPUT CHECK 
    1. Select Vehicle Sensor from the navigation diagnostic menu screen (PIN code 660), check Current speed. The current speed must match the speedometer.
    2. From the Vehicle Sensor screen, does the current speed must match the speedometer? 

      YES:  Go to F 3.

      NO:  Carry out MOST ring circuit checks.

      Check the Anti-Lock Brake System Module for related DTCs and refer to the relevant DTC Index.

      Carry out network integrity tests using the manufacturer approved diagnostic system. Refer to electrical circuit diagrams and check CAN circuits if required. Repair wiring harness as required.

  3. F3: CHECK NUMBER OF SATELLITES 
    1. From the navigation diagnostic GPS information screen (PIN code 662), check the number of satellites displayed.
    2. Is the number of satellites displayed on the screen 0? 

      YES:  Carry out pinpoint test A "Poor Satellite Reception"

      NO:  Go to F 4.

  4. F4: CHECK IF SYMPTOMS ARE OCCURRING IN PARTICULAR LOCATIONS 
    1. Confirm if the 'car current position not stable' symptom is occurring in particular locations.
    2. Is the 'car current position not stable' symptom occurring in particular locations? 

      YES:  Signal reflections from buildings or a particular location may be responsible.

      NO:  Carry out pinpoint test A "Poor Satellite Reception"