Description

Air Distribution and Filtering

NOTE:
A = Hardwired; N = Medium speed CAN (controller area network) bus; O = LIN (local interconnect network) bus; P = Media orientated system transport (MOST) ring.









Face Level Registers
Operation of the face level registers is controlled by the ATC (automatic temperature control) module, using LIN (local interconnect network) bus messages to the integral stepper motors. The four registers operate together in both the opening and closing phases.
The face level registers can be selected to run in one of two modes; 'automatic' or 'always open'. The mode is selected on the climate control screen of the TSD. For additional information, refer to Navigation System Description
In the automatic mode, operation of the face level registers is synchronized with the engine START/STOP button. When the engine starts the ATC (automatic temperature control) module opens the registers. When the engine stops, the ATC (automatic temperature control) module closes the registers.
If a face level register is fouled, when it receives an open or close request, the register concerned makes a number of attempts to reach the requested position. If the register still does not move, it is left in the fouled position. The remaining registers will continue to open and close as normal.
The automatic mode is disabled when the climate control system is off. The ATC (automatic temperature control) module closes the registers if they are open in the automatic mode and the climate control system is selected off.


Diagnostics
If a fault occurs with the face level registers, a DTC (diagnostic trouble code) is stored in the ATC (automatic temperature control) module. The DTC (diagnostic trouble code) can be read using the Jaguar approved diagnostic system. The Jaguar approved diagnostic system can also initiate a self test routine to check the operation of the face level registers. For additional information, refer to Climate Control System Initial Inspection and Diagnostic Overview Climate Control System

Air Ducts
The air ducts distribute air from the heater assembly to the registers and vents in the instrument panel and the center floor console. Air ducts also direct air from the heater assembly into the front and rear footwells.

Registers and Vents
The registers control the flow and direction of air from the air ducts. The instrument panel contains four face level registers; one at each end and two mounted centrally. For the rear seat occupants, two registers are installed in the rear face of the center floor console. All of the registers incorporate vertical and horizontal directional vane adjustment and full air flow adjustment down to zero.
The four face level registers in the instrument panel each contain an integral stepper motor. The stepper motors enable the registers to rotate between the open and closed positions. In the open position, the registers have normal appearance and functionality. In the closed position, the registers present a smooth surface flush with the surrounding instrument panel.
The vents are fixed outlets. There are four vents in the upper surface of the instrument panel; one in each end to direct air onto the side windows and two along the front edge to direct air onto the windshield.

Central Face Level Registers









Pollen Filter

NOTE:
LHD (left-hand drive) vehicle shown, RHD (right-hand drive) vehicle similar.









The pollen filter removes odors and fine particles from fresh air entering the passenger compartment. The pollen filter is located in the air inlet duct, in the inlet to the blower. A cover on the underside of the air inlet duct provides access to the pollen filter for servicing.