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, performing the door lock operation with the lock switch does not lock the doors.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. READ VALUE USING TECHSTREAM

(a) Connect a Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the tester ON.

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

(e) According to the display on tester, perform the "Data List".

Main Body ECU:





OK:

The display is as specified in the normal condition.

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

2. READ VALUE USING TECHSTREAM

(a) Connect a Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the tester ON.

(d) Enter the following menus: Body Electrical / Main Body / Active Test.

(e) According to the display on tester, perform the "Active Test".

Main Body ECU:





OK:

The display is as specified in the normal condition.

NG -- REPLACE MAIN BODY ECU
OK -- Continue to next step.

3. INSPECT UNLOCK WARNING SWITCH

(a) Remove the unlock warning switch.





(b) Measure the resistance.

Standard resistance:





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

4. CHECK HARNESS AND CONNECTOR (UNLOCK WARNING SWITCH ASSEMBLY - MAIN BODY ECU)

(a) Disconnect the E21 unlock warning switch connector.





(b) Disconnect the E8 main body ECU connector.

(c) Measure the resistance.

Standard resistance:





(d) Reconnect the unlock warning switch connector.

(e) Reconnect the main body ECU connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE MAIN BODY ECU

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

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





(b) Measure the resistance.

Standard resistance:





(c) Reinstall the front door courtesy light switch (driver side).

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

6. CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY SWITCH (DRIVER SIDE) - MAIN BODY ECU)

(a) Disconnect the J1 front door courtesy light switch (driver side) connector.





(b) Disconnect the E7 main body ECU connector.

(c) Measure the resistance.

Standard resistance:





(d) Reconnect the front door courtesy light switch connector.

(e) Reconnect the main body ECU connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE MAIN BODY ECU