2002 Jaguar XJR BaseFACTORY OEM SERVICE PROCEDURE

KICKDOWN Switch Adjustment

  1. Ensure that the throttle cable is correctly adjusted. See ACCELERATOR CABLE ADJUSTMENT .
  2. See the PDU User Guide for relevant software - 1040.
  3. With PDU connected, running and the message "EXISTING COMPONENTS TO BE TESTED YES/NO" displayed;
    1. Select YES.
    2. Select ENTER.
    3. Follow the messages given on the screen.
  4. Press ENTER on the PDU screen.
  5. Following the PDU instruction;
    1. Push the throttle pedal until light contact is made with the kickdown switch and hold.
    2. Press ENTER on the display.
    3. Ensure that contact with the switch does not result in switch movement.
    4. NOTE: Note the percentage throttle open data (displayed as a bar graph).
    5. Release the throttle pedal.
    Fig 1: Checking Kickdown Switch Operation
    G00378893Courtesy of JAGUAR CARS, INC.
  6. If the target 90% throttle open specification is NOT achieved the switch must be adjusted as follows:
  7. Disconnect the kickdown switch multiplug.
    • Move the carpet for access.
    Fig 2: Connecting & Disconnecting Kickdown Switch Pigtail
    G00378894Courtesy of JAGUAR CARS, INC.
  8. Adjust the kickdown switch to the value as defined in step #6.
    • Rotate the switch in the required direction.
    Fig 3: Adjusting Kickdown Switch
    G00378895Courtesy of JAGUAR CARS, INC.
  9. Verify the setting.
  10. With the PDU instructions completed, connect the Kickdown switch multiplug.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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