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Home >> Jaguar >> 2017 >> XJR L >> Repair and Diagnosis >> Accessories & Equipment >> Window Motors & Regulators >> Glass, Frames & Mechanisms -- XJ/X351 >> Glass, Frames And Mechanisms >> Diagnosis And Testing (Glass, Frames And Mechanisms) >> Symptom Chart >> Notes

Symptom Chart: Notes

SYMPTOM POSSIBLE CAUSE ACTION
Window (s) inoperative
  • Fuse(s)
  • Switch fault
  • Front switch isolator fault
  • Motor/Regulator fault
  • Channel/Runner fault
  • Cable fault
  • Harness fault
  • Check the fuses. Check the suspect window operation from the individual door switch and from the driver door master switch (it is unlikely that both switches would fail at the same time, so if the window is inoperative from either switch, suspect a fault other than a switch). If the inoperative window is a rear unit, check the function of the isolator at the master switch.
  • Using the manufacturer approved diagnostic system run application - Inline diagnostic unit 2 diagnostic test - Door window regulator
Window (s) 'one-shot' function inoperative
  • Window motor initialization required
  • Switch fault
  • If the battery has been disconnected, carry out the initialization procedure. Refer to the relevant section of the service information. Check the switch function after initialization.
  • Using the manufacturer approved diagnostic system run application - Inline diagnostic unit 2 diagnostic test - Door window regulator
Window (s) noisy
  • Channel/Runner fault
  • Cable fault
  • Motor/Regulator fault
  • Check the channels and runners for foreign objects, etc. Check the cable condition and routing. Check the motor and regulator condition.
  • Using the manufacturer approved diagnostic system run application - Inline diagnostic unit 2 diagnostic test - Door window regulator
Rear window does not defrost
  • Fuse
  • Switch fault
  • Relay fault
  • Element fault
  • Circuit fault
Check fuse. Check the operation of the heated rear window switch and relay. Check the element for continuity. Check the heated rear window circuit. Refer to the electrical guides.

Window Regulator Diagnostic 

This diagnostic procedure is to be carried out if the window glass, - Closes to the top, then reopens Bounce back  - Does not fully close  to the top of the door frame - The One touch  function is disabled