Driver Side Door Entry Lock Function does not Operate

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

DESCRIPTION

When the touch sensor inside the outside door handle front LH is touched, the multiplex network door ECU front LH (driver door ECU) sends a request signal to the door electrical key oscillator front LH. The key receives this request and transmits its ID code. Upon receiving the ID code, the certification ECU determines that the key is outside the vehicle and sends a lock signal to the driver side door lock through the cowl side junction block RH (multiplex network body ECU).



PROCEDURE

1. CHECK MANUAL DOOR LOCK OPERATION

(a) 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 -- Continue to next step.

2. READ VALUE USING TECHSTREAM (DOOR COURTESY LIGHT SWITCH)

(a) Check the DATA LIST for proper functioning of the door lock position switch.

Multiplex Network Body ECU





OK:

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

NG -- GO TO LIGHTING SYSTEM
OK -- Continue to next step.

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

(a) Check the DATA LIST for proper functioning of the door lock position switch.

Multiplex Network Master Switch Assembly





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 -- Continue to next step.

4. READ VALUE USING TECHSTREAM (LOCK SWITCH)

(a) Check the DATA LIST for proper functioning of the door lock position switch.

Multiplex Network Door ECU Front LH





OK:

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

NG -- REPLACE FRONT DOOR HANDLE ASSEMBLY OUTSIDE LH
OK -- Continue to next step.

5. CHECK OPERATION OF MULTIPLEX NETWORK DOOR ECU FRONT LH

(a) 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)