FN4A-EL Automatic Transaxle Transmission/Transaxle
Key Interlock Solenoid
• The key interlock solenoid is located at the ignition lock and controls the position of the
stopper, which prevents the key from being turned to the LOCK position.
• On vehicles with standard keyless entry system the key interlock solenoid is controlled
by the P position switch, and on vehicles with Advanced Keyless Entry and Start System
the solenoid is controlled by the keyless control module.
M3FL_05010
1 Key interlock solenoid 3 Cam
2 Stopper
• When the selector lever is in any other position than P, the key interlock solenoid is
energized. As a result, the stopper restricts the movement of the ignition lock, preventing
the key from being turned to LOCK position.
• When the selector lever is in P position, the key interlock solenoid is de-energized. As a
result, the stopper does not restrict the movement of the ignition lock, allowing turning
the key to LOCK position.
NOTE: In case of an open circuit the key can be turned to LOCK position in any position of
the selector lever.
05-12 Service Training Mazda3 F/L
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