Check Chart 4

Check Chart 4: Door Switch Input Circuit:

4. DOOR SWITCH INPUT CIRCUIT

Description of Operation
When the door is closed (the door switch is switched OFF), HIGH-level signals are sent to the ECU:

When the door is opened (the door switch is switched ON), LOW-level signals are sent to the ECU.

Check Chart 4: ECU Terminal No. 10:

ECU Terminal Voltage (Connection condition of the ECU).