5. Door Lock Actuator Switch Input Circuit

DESCRIPTION OF OPERATION
When a door is locked by the lock knob or the key, the door lock actuator switch is switched OFF, and HIGH level signals are sent to the ECU. These signals active the timer circuit of the ECU, there by causing the activation circuit to function, thus activating the door lock actuator of all doors.





ECU TERMINAL VOLTAGE
Connection condition of the ECU connector.

NOTE: * Measurement is not possible by using a voltmeter, but is possible by using an oscilloscope.





CHECKING THE DOOR LOCK SWITCH CIRCUIT
Disconnect the connector of the ECU and check at the wiring harness side.