Driver Side Door Entry Lock Function Does Not Operate: Procedure

1. Check that the manual door lock function operates normally.

   OK

   Manual door lock function operates normally.

NG → GO TO POWER DOOR LOCK CONTROL SYSTEM 

OK: Go to next step 

1. Check the DATA LIST for proper functioning of the door lock position switch.
   MULTIPLEX NETWORK BODY ECU
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   D Door Courtesy SW	Courtesy light switch / ON or OFF	ON: Courtesy light switch is pushed OFF: Courtesy light switch is not pushed	-

   OK

   ON (door courtesy light switch is pushed) appears on the screen.

NG → GO TO LIGHTING SYSTEM 

OK: Go to next step 

1. Check the DATA LIST for proper functioning of the door lock position switch.
   MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Door Unlock Detection Switch	Door unlock detection switch / ON or OFF	ON: Door is unlocked OFF: Door is locked	-

   OK

   On the Techstream screen, the display changes between ON and OFF as shown in the chart above.

NG → GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Only Driver Door LOCK / UNLOCK Functions do not Operate) 

OK: Go to next step 

1. Check the DATA LIST for proper functioning of the door lock position switch.
   MULTIPLEX NETWORK DOOR ECU FRONT LH
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Trigger Switch	Driver side-door lock switch / ON or OFF	ON: Lock switch is pushed OFF: Lock switch is not pushed	-

   OK

   ON (lock switch is pushed) appears on the screen.

NG → REPLACE FRONT DOOR HANDLE ASSEMBLY OUTSIDE LH 

OK: Go to next step 

1. After replacing the multiplex network door ECU front LH with a normal one, check that the entry lock function operates normally.

   OK

   Entry lock function operates normally.

NG → REPLACE CERTIFICATION ECU ASSEMBLY 

OK → END (MULTIPLEX NETWORK DOOR ECU FRONT LH IS DEFECTIVE)