CR-V LX 4WD L4-2.4L (2002)
Ignition Lock Solenoid: Description and Operation
Interlock System (A/T)
How the Circuit Works
Key Interlock
When you push the key into the ignition switch, a ground signal is provided to the multiplex control unit. If the shift lever is in PARK, the multiplex
control unit provides voltage to the key interlock solenoid, energizing the solenoid and allowing the key to be turned to the LOCK (0) position.
Shift Position Interlock
Battery voltage is supplied at all times through fuse 7 to the brake pedal position switch. With the ignition in ACC (I) or ON (II), battery voltage is
supplied through fuse 8 (in the under-dash fuse/relay box) to the shift lock solenoid. When you push the brake pedal, battery voltage is applied through
the WHT/BLK wire to the PCM. If, at the same time, you do not push the accelerator pedal, a low voltage signal is sent through the WHT/BLU wire to
the multiplex control unit. The multiplex control unit then applies ground through the YEL/BLK wire to the shift lock solenoid. The solenoid is then
energized allowing the shift lever to be moved from the PARK position.
