Rear Door LH Entry Lock Function does not Operate

DOOR LOCK: SMART ACCESS SYSTEM WITH PUSH-BUTTON START: Rear Door LH Entry Lock Function does not Operate

Rear Door LH Entry Lock Function does not Operate

DESCRIPTION

If the rear door LH entry lock function does not operate but the entry unlock operation operates, the communication line between the vehicle and electrical key transmitter is normal. Either of the following may have occurred: 1) the entry lock switch is malfunctioning; or 2) the rear door ECU LH receives the entry lock switch ON signal, but is unable to send the signal to the certification ECU through CAN communication.

WIRING DIAGRAM

Refer to Rear Door LH Entry Lock and Unlock Functions do not Operate Rear Door LH Entry Lock and Unlock Functions do not Operate.

INSPECTION PROCEDURE
NOTE: Before performing the inspection, check that there are no problems related to the "CAN COMMUNICATION SYSTEM" and "LIN COMMUNICATION SYSTEM".

PROCEDURE

1. CHECK POWER DOOR LOCK OPERATION
(a) When the master switch's door control switch is operated, check that the locked doors unlock Power Door Lock Control System.
OK:
Locked doors unlock.
NG -- GO TO POWER DOOR LOCK CONTROL SYSTEM
OK -- Continue to next step.
2. READ VALUE USING INTELLIGENT TESTER OR TECHSTREAM (OUTSIDE HANDLE)
(a) Using the intelligent tester or Techstream, read the Data List Smart Access System With Push-Button Start.
(1) Intelligent tester

RL-DOOR





(2) Techstream

Rear Left Door





OK:
On tester screen, item changes between ON and OFF according to above chart.
NG -- CHECK REAR DOOR OUTSIDE HANDLE LH
OK -- Continue to next step.
3. CHECK REAR DOOR ECU LH (OPERATION)
(a) Replace the rear door ECU LH with a new one or normally functioning one Components.
(b) Check that the entry function operates normally Smart Access System With Push-Button Start.
OK:
Operates normally
NG -- REPLACE CERTIFICATION ECU
OK -- END (REAR DOOR ECU LH IS DEFECTIVE)
4. CHECK REAR DOOR OUTSIDE HANDLE LH





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






NG -- REPLACE REAR DOOR OUTSIDE HANDLE LH
OK -- Continue to next step.
5. CHECK HARNESS AND CONNECTOR (REAR DOOR ECU LH - REAR DOOR OUTSIDE HANDLE LH)





(a) Disconnect the O14 ECU connector.
(b) Disconnect the d1 handle 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.
6. CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - REAR DOOR OUTSIDE HANDLE LH)





(a) Disconnect the d2 oscillator connector.
(b) Disconnect the d1 handle 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.
7. CHECK DOOR ELECTRICAL KEY OSCILLATOR (OPERATION)
(a) Replace the door electrical key oscillator with a new one or normally functioning one Components.
(b) Check that the entry function operates normally Smart Access System With Push-Button Start.
OK:
Operates normally
NG -- CHECK REAR DOOR ECU LH (OPERATION)
OK -- Continue to next step.
8. CHECK REAR DOOR ECU LH (OPERATION)
(a) Replace the rear door ECU LH with a new one or normally functioning one Components.
(b) Check that the entry function operates normally Smart Access System With Push-Button Start.
OK:
Operates normally
NG -- REPLACE CERTIFICATION ECU
OK -- END (REAR DOOR ECU LH IS DEFECTIVE)