Door Unlock Sensor Check

NOTE: Door unlock sensor is part of door lock actuator.

Check Door Unlock Sensor Input Signal

Turn ignition off. Using DVOM, measure voltage (backprobe) between ground and specified terminals at Smart Entrance Control Unit (SECU) harness connector. See UNLOCK SENSOR CIRCUIT TEST table. If voltage is as specified, door unlock sensor is okay. If voltage is not as specified, go to next step.

UNLOCK SENSOR CIRCUIT TEST ⁽¹⁾

Application (Terminal No.)

Unlock Sensor Condition

Specification

Driver's Door (12)

Unlock

Zero Volts

Passenger's Door (13)

Unlock

Zero Volts

Rear Doors (14)

Unlock

Zero Volts

Back Door (14)

Unlock

Zero Volts

All Doors (12, 13 & 14)

Lock

Battery Voltage

⁽¹⁾	For terminal identification, see WIRING DIAGRAMS .

Check Door Unlock Sensor

Disconnect door lock actuator in question. Using DVOM, check for continuity between door lock actuator terminals No. 2 and 4 (driver and passenger-side doors), or between terminals No. 3 and 4 (back door). See WIRING DIAGRAMS . Ensure continuity is present only when door lock actuator is in unlocked position. Replace door lock actuator if continuity is not as specified. If continuity is as specified, check door unlock sensor ground circuit. Check for open or short in wiring harness between door unlock sensor and SECU. Repair as necessary.