2003 Jaguar XJRFACTORY OEM SERVICE PROCEDURE

Panel Communication Check

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2006 Jaguar XKR, 2006 Jaguar XK8, 2005 Jaguar XKR, 2005 Jaguar XK8, and 2004 Jaguar XKR. However, it is still accessible from the selected car via links, so may be relevant.

The panel communication check verifies the inputs and outputs from the control panel to the A/CCM.

Step Result
#1 Simultaneously hold FACE and FAN - Switch ignition to ON Panel communication with FACE, Bi-level, FOOT, DEMIST, DEFROST and RECIRC lines checked - State lamps will illuminate if all is OK. Unlit state lamp indicates a continuity fault for that specific link
#2 Press ON Exit check mode
Item Check LED Condition
Ignition Defrost IGN input at 12V, check LED is illuminated
Auxiliary Face AUX input at 12V, check LED is illuminated
Clock Feet / face Clock input normal, check LED is illuminated
Start input Foot Start input normal, check LED is illuminated
Data out Screen / foot Data out input normal, check LED is illuminated
Dimmer override Recirc. Dimmer override input ON, check LED is illuminated
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When to See a Mechanic

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

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