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Home >> Jaguar >> 2011 >> XK 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 66 (Anti-Theft - Active -- XK/X150) >> Anti - Theft - Active >> Anti - Theft - Active (Description And Operation) >> Description And Operation >> Introduction >> Battery Backed Sounder [If Fitted]

Battery Backed Sounder [If Fitted]

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The battery backed sounder is located in the RH rear corner of the engine compartment and attached to the bulkhead.

On vehicles with a battery backed sounder, a tilt sensor can be incorporated which monitors the vehicle attitude. The CJB monitors the tilt sensor and can detect if the vehicle is being moved, towed or raised and activate the alarm system. The type of battery backed sounder can be identified by a suffix change to the part number; sounders without a tilt sensor have the suffix AA and sounders incorporating a tilt sensor have the suffix BA.

Operation of the sounder is controlled by the CJB on a LIN (local interconnect network) bus. The sounder is also connected with a permanent battery supply via the CJB. An integral, rechargeable battery powers the sounder if the battery power supply from the CJB is interrupted.

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