Key Lock-In Prevention Function Does Not Work Properly

DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM: Key Lock-in Prevention Function does not Work Properly
- Key Lock-in Prevention Function does not Work Properly

DESCRIPTION

When the key is in the ignition key cylinder or the door courtesy light ON signal is output to the main body ECU (instrument panel junction block), performing the door lock operation with the lock switch does not lock the door.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM (UNLOCK WARNING SWITCH)

(a) Connect the Techstream.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Main Body / Data List.

(e) Read the Data List according to the display on the Techstream.

Main Body





OK:

The Techstream indicates ON or OFF according to the switch operation as shown in the table.

Result:





D -- INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (PASSENGER SIDE)

C -- INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (DRIVER SIDE)

B -- INSPECT UNLOCK WARNING SWITCH ASSEMBLY

A -- REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)

2. INSPECT UNLOCK WARNING SWITCH ASSEMBLY

(a) Remove the unlock warning switch Removal.





(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





NG -- REPLACE UNLOCK WARNING SWITCH ASSEMBLY Removal
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (UNLOCK WARNING SWITCH - JUNCTION BLOCK)

(a) Disconnect the instrument panel junction block 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.

4. CHECK HARNESS AND CONNECTOR (UNLOCK WARNING SWITCH - BODY GROUND)

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





Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)

5. INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (DRIVER SIDE)

(a) Remove the front door courtesy light switch (driver side) Removal.





(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





NG -- REPLACE FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (DRIVER SIDE) Removal
OK -- Continue to next step.

6. CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH - JUNCTION BLOCK)

(a) Disconnect the instrument panel junction block connector.





(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)

7. INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (PASSENGER SIDE)

(a) Remove the front door courtesy light switch (passenger side) Removal.





(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





NG -- REPLACE FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (PASSENGER SIDE) Removal
OK -- Continue to next step.

8. CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH - JUNCTION BLOCK)

(a) Disconnect the instrument panel junction block connector.





(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)