Front Passenger Side Door Entry Unlock Function does not Operate

DOOR LOCK: SMART ACCESS SYSTEM WITH PUSH-BUTTON START: Front Passenger Side Door Entry Unlock Function does not Operate
- Front Passenger Side Door Entry Unlock Function does not Operate

DESCRIPTION

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

WIRING DIAGRAM

Refer to Front Passenger Side Door Entry Lock and Unlock Functions do not Operate Front Passenger Side Door Entry Lock and Unlock Functions do not Operate.

INSPECTION PROCEDURE

PROCEDURE

1. CHECK POWER DOOR LOCK OPERATION

(a) When the master switch assembly's door control switch is operated, check that the locked doors unlock.

Result





NG -- GO TO POWER DOOR LOCK CONTROL SYSTEM Service Precautions
OK -- Continue to next step.

2. READ VALUE USING TECHSTREAM (DOOR LOCK POSITION SWITCH)

(a) Using the Techstream, read the Data List.

Passenger Door (Front door ECU RH)





OK:

On the screen, item changes between ON and OFF according to above chart.

NG -- GO TO POWER DOOR LOCK CONTROL SYSTEM (Proceed to Only Passenger Door LOCK/UNLOCK Functions do not Operate) Problem Symptoms Table
OK -- Continue to next step.

3. READ VALUE USING TECHSTREAM

(a) Using the Techstream, read the Data List.

Passenger Door (Front door ECU RH)





OK:

On the screen, item changes between ON and OFF according to above chart.

NG -- CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - FRONT DOOR ECU RH)
OK -- Continue to next step.

4. CHECK FRONT DOOR ECU RH (OPERATION)

(a) Replace the front door ECU RH with a new one or normally functioning one Components.

(b) Check that the entry function operates normally.

OK:

Operates normally

NG -- REPLACE CERTIFICATION ECU

OK -- END (FRONT DOOR ECU RH IS DEFECTIVE)

5. CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - FRONT DOOR ECU RH)





(a) Disconnect the N1 ECU connector.

(b) Disconnect the a1 oscillator 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 - FRONT DOOR OUTSIDE HANDLE RH)





(a) Disconnect the a1 oscillator connector.

(b) Disconnect the a2 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.

OK:

Operates normally

NG -- CHECK FRONT DOOR OUTSIDE HANDLE RH (OPERATION)

OK -- END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE)

8. CHECK FRONT DOOR OUTSIDE HANDLE RH (OPERATION)

(a) Replace the front door outside handle RH with a new one or normally functioning one Components.

(b) Check that the entry function operates normally.

OK:

Operates normally

NG -- CHECK FRONT DOOR ECU RH (OPERATION)

OK -- END (FRONT DOOR OUTSIDE HANDLE RH IS DEFECTIVE)

9. CHECK FRONT DOOR ECU RH (OPERATION)

(a) Replace the front door ECU RH with a new one or normally functioning one Components.

(b) Check that the entry function operates normally.

OK:

Operates normally

NG -- REPLACE CERTIFICATION ECU

OK -- END (FRONT DOOR ECU RH IS DEFECTIVE)