Unlock Warning Switch Circuit

Unlock Warning Switch Circuit

DESCRIPTION

The unlock warning switch detects if the key is in the ignition key cylinder.

The unlock warning switch turns on when the key is inserted into the ignition key cylinder and turns off when the key is removed from the cylinder.

The main body ECU is connected to the unlock warning switch via terminal KSW and key detection status signals are input to the main body ECU.

The main body ECU applies voltage to the unlock warning switch via terminal KSW. When the unlock warning switch is on (there is continuity between the switch terminals), a signal indicating that the key is in the ignition key cylinder is input to the main body ECU. When the switch is off (there is no continuity between the switch terminals), a signal indicating that the key is not in the cylinder is input.

Wiring Diagram:

Step 1:

Step 1(Continued)-2:

Step 3-4:

Step 4 (Continued):

INSPECTION PROCEDURE