DTC Diagnosis Procedure

The door lock assembly detects condition of the key cylinder switch and transmits to BCM as the LOCK or UNLOCK signal.

1. CHECK DOOR KEY CYLINDER SWITCH 

   CONSULT

   1. Select "KEY CYL LK-SW" and "KEY CYL UN-SW" in "Data Monitor" mode of "BCM (DOOR LOCK)".
   2. Check that the function operates normally according to the following conditions:

   Monitor item	Condition		Status
   KEY CYL LK-SW	Key cylinder switch	Lock	On
   		Neutral / Unlock	Off
   KEY CYL UN-SW		Unlock	On
   		Neutral / Lock	Off

   Is the inspection result normal?

   YES

   Key cylinder switch signal is OK.

   NO

   GO TO 2.

2. CHECK DOOR KEY CYLINDER SWITCH GROUND HARNESS 
   1. Ignition switch OFF.
   2. Disconnect suspect door lock assembly (key cylinder switch).
   3. With sliding door in the closed position, check continuity between door lock assembly (key cylinder switch) connector and body ground.

   Item	Connector	Condition	Terminals	Ground	Continuity
   Front door lock assembly LH	D14	Sliding door closed	4		Yes
   Sliding door lock assembly	D303		3
   Back door lock assembly	D609

   Is the inspection result normal?

   YES

   GO TO 3.

   NO

   Repair or replace harness.

3. CHECK DOOR KEY CYLINDER SWITCH 

   Check continuity between suspect door lock assembly (key cylinder switch) terminals.

   Item	Terminals	Condition	Continuity
   Front door lock assembly LH	5 - 4	Key is turned to UNLOCK.	Yes
   		Key is turned to LOCK or neutral.	No
   	6 - 4	Key is turned to LOCK.	Yes
   		Key is turned to UNLOCK or neutral.	No
   Sliding door lock assembly	4 - 3	Key is turned to UNLOCK.	Yes
   		Key is turned to LOCK or neutral.	No
   	2 - 3	Key is turned to LOCK.	Yes
   		Key is turned to UNLOCK or neutral.	No
   Back door lock assembly	2 - 3	Key is turned to UNLOCK.	Yes
   		Key is turned to LOCK or neutral.	No
   	4 - 3	Key is turned to LOCK.	Yes
   		Key is turned to UNLOCK or neutral.	No

   Is the inspection result normal?

   YES

   GO TO 4.

   NO

   Replace door lock assembly (key cylinder switch). Refer to Removal and Installation (front LH), Removal and Installation (sliding), Removal and Installation (back).

4. CHECK DOOR KEY CYLINDER HARNESS 
   1. Disconnect BCM connector.
   2. Check continuity between BCM connector and front door lock assembly LH (key cylinder switch) connector.

      BCM		Front door lock assembly LH (key cylinder switch)		Continuity
      Connector	Terminals	Connector	Terminals
      M18	7	D14	5	Yes
      	8		6

   3. Check continuity between BCM connector and sliding door lock assembly (key cylinder switch) connector.

      BCM		Sliding door lock assembly (key cylinder switch)		Continuity
      Connector	Terminals	Connector	Terminals
      7		D303	4	Yes
      8	2

   4. Check continuity between BCM connector and back door lock assembly (key cylinder switch) connector.

      BCM		Back door lock assembly (key cylinder switch)		Continuity
      Connector	Terminals	Connector	Terminals
      7		D609	2	Yes
      8	4

   5. Check continuity between BCM connector and ground.

      BCM		Ground	Continuity
      Connector	Terminals
      M18	7		No
      	8

   Is the inspection result normal?

   YES

   Replace BCM. Refer to Removal and Installation .

   NO

   Repair or replace harness.