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Pinpoint Test G: Heating And Cooling - Noisy 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. G1: CHECK FOR STORED DTC 
    1. Check the Climate Controlled Seat Module for stored DTC's.

      2. Are there any stored DTC's? 

      YES:  For information on stored DTC's refer to the information in the Climate Controlled Seat Module DTC index.

      NO:  Go to G 2.

  2. G2: DRIVER OR FRONT PASSENGER SEAT BACKREST CLIMATE ASSEMBLY - NOISE 
    WARNING: Before work is carried out, make the air bag supplemental restraint system safe. For additional information, refer to Standard Workshop Practices section of service information.
    NOTE: The Climate Controlled Seat's (heat and cool) function will only operate when the vehicle's engine is running.
    NOTE: If a fault is identified and repaired, check for correct operation of the driver and front-passenger climate controlled seat (heat and cool) functions.
    1. There is a known issue which effects a limited number of vehicles where under acceleration of the vehicle the occupant of seat can deform the suspension mat (snake wire) which then presses on the casing of the seat backrest climate assembly, this causes the casing to distort and the noise issue to occur. If contact has occurred there will be a witness mark on the casing. Carry out visual inspection of the seat backrest climate assembly that has been identified as noisy by the customer.

      2. Is there a witness mark on the casing? 

      YES:  Contact the local in market support for further information.

      NO:  Go to G 3.

  3. G3: DRIVER OR FRONT PASSENGER SEAT CLIMATE ASSEMBLY - NOISE 2 
    1. Operate the heat and cool function of the seat. Listen for a 'WAH WAH' noise (the fan speeds up and slows down repeatedly).

      2. Does the fan speeds up and slow down repeatedly? 

      YES:  Confirm the latest Strategy and Calibration software is installed, using the manufacturer approved diagnostic system carry out the new Climate Controlled Seat Module application and update the Climate Controlled Seat Module software if required. If the noise is still evident after software update follow link below. Go to G 4.

      NO:  Go to step  4.

  4. G4: DRIVER OR FRONT PASSENGER SEAT BACKREST CLIMATE ASSEMBLY - NOISE LEVEL COMPARISON 
    1. Compare the noise level of the suspect climate seat assembly to another climate seat assembly.

      2. Is the noise level equal between the two seats? 

      YES:  The noise level is standard and comparable to the design intent.

      NO:  Suspect an internal fault with the Seat Climate Assembly. Replace as required, refer to the Warranty Policy and Procedures manual (section B1.2). Prior to installing a new component.

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