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Home >> Ford >> 2006 >> Focus ZX5 SE, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1324 (Steering Column Switches) >> Diagnosis And Testing >> Steering Column Switches >> Principles of Operation >> Ignition Switch

Ignition Switch

WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.

The ignition switch is controlled by the ignition lock cylinder with a key. When the ignition lock cylinder is turned using the key, a mechanical connection positions the ignition switch to the selected position and allows the ignition switch to send voltage to the Battery Junction Box (BJB) and the SJB  . The ignition switch also contains a key-in ignition system that allows the SJB  to detect when the key has been inserted in the ignition switch. The ignition switch and cylinder are part of the steering column lock module and can be serviced separately. For information on the brake shift interlock system, refer to AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS - 6F35 or AUTOMATIC TRANSAXLE/TRANSMISSION EXTERNAL CONTROLS - HYBRID .

The available ignition switch positions are:

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