Front Passenger Side Door Entry Lock Function Does Not Operate

THEFT DETERRENT / KEYLESS ENTRY: SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function): Front Passenger Side Door Entry Lock Function does not Operate

Front Passenger Side Door Entry Lock Function does not Operate

DESCRIPTION

If the front passenger side door entry lock function does not operate but the entry unlock function operates, the communication line between the vehicle and electrical key transmitter is normal. Any of the following components may have a malfunction: 1) touch sensor circuit certification ECU (smart key ECU assembly); 2) front door outside handle assembly (front passenger side); or 3) door electrical key oscillator (front passenger side).

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK POWER DOOR LOCK OPERATION
(a) When the door control switch on the master switch assembly is operated, check that the locked doors unlock Component Tests and General Diagnostics.
OK:
Locked doors unlock.
NG -- GO TO POWER DOOR LOCK CONTROL SYSTEM
OK -- Continue to next step.
2. READ VALUE USING TECHSTREAM (DOOR OUTSIDE HANDLE)
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Smart Access / Data List.
(e) Read the Data List according to the display on the Techstream.

Smart Access (Certification ECU (Smart Key ECU Assembly))





OK:
On the Techstream screen, the display changes between ON and OFF according to the chart above.
NG -- CHECK HARNESS AND CONNECTOR (FRONT DOOR OUTSIDE HANDLE - DOOR ELECTRICAL KEY OSCILLATOR)
OK -- REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
3. CHECK HARNESS AND CONNECTOR (FRONT DOOR OUTSIDE HANDLE - DOOR ELECTRICAL KEY OSCILLATOR)
(a) Disconnect the front door outside handle assembly (front passenger side) connector.





(b) Disconnect the door electrical key oscillator (front passenger side) connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
4. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - FRONT DOOR OUTSIDE HANDLE)





(a) Disconnect the certification ECU (smart key ECU assembly) connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
5. INSPECT FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FRONT PASSENGER SIDE)





(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FRONT PASSENGER SIDE)
OK -- Continue to next step.
6. REPLACE DOOR ELECTRICAL KEY OSCILLATOR (FRONT PASSENGER SIDE)
(a) Replace the door electrical key oscillator (front passenger side) Removal.
NEXT -- Continue to next step.
7. CHECK DOOR ELECTRICAL KEY OSCILLATOR (FRONT PASSENGER SIDE OPERATION)
(a) Check that the entry functions operate normally Smart Access System With Push-Button Start (for Entry Function).
OK:
Entry functions operate normally.
NG -- REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)
OK -- END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE)