Check Door Lock Switch And Circuit

DIAGNOSTIC PROCEDURE CHART

Step	Check	Yes	No
1 CHECK DOOR LOCK SWITCH CIRCUIT. Disconnect the harness connector of body integrated unit. Measure the resistance between the harness connector terminal and chassis ground when moving the door lock switch to LOCK. Connector & terminal (B281) No. 12 - Chassis ground:	Is the resistance less than 10 Ω?	Go to step 2.	Go to step 3.
2 CHECK DOOR LOCK SWITCH CIRCUIT. Measure the resistance between the harness connector terminal and chassis ground when the door lock switch is moved to UNLOCK. Connector & terminal (B281) No. 11 - Chassis ground:	Is the resistance less than 10 Ω?	The door lock switch is OK.	Go to step 3.
3 CHECK DOOR LOCK SWITCH GROUND CIRCUIT. Disconnect the door lock switch harness connector. Measure the resistance between the door lock switch harness connector terminal and the body ground. Connector & terminal No. 5 - Chassis ground:	Is the resistance less than 1 Ω?	Go to step 4.	Repair the open circuit in the harness or chassis ground.
4 CHECK DOOR LOCK SWITCH. Measure the resistance between the door lock switch terminals when moving the door lock switch to LOCK. Connector & terminal Driver side: No. 5 - No. 9: Passenger side: No. 4 - No. 5:	Is the resistance less than 1 Ω?	Go to step 5.	Replace the door lock switch.
5 CHECK DOOR LOCK SWITCH. Measure the resistance between the door lock switch terminals when moving the door lock switch to UNLOCK. Connector & terminal Driver side: No. 5 - No. 8: Passenger side: No. 2 - No. 5:	Is the resistance less than 1Ω?	Check the harness for open circuits or shorts between the body integrated unit and the door lock switch.	Replace the door lock switch.