Civic L4-1668cc 1.7L SOHC MFI (2003)
1. Remove and discard the plastic cover from the ignition switch key interlock solenoid.
2. Note the position of the interlock solenoid plunger; you'll need to install it the same way.
3. Remove the screw from the solenoid, but keep the solenoid attached to its electrical connector. Discard the screw.
NOTE:
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Be careful not to lose the solenoid plunger; it slides out easily.
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Keep the plunger free of dirt and grease while it's removed from the solenoid.
4. Note the position of the interlock lever spring; you'll need to install the new spring the same way.