All Doors Cannot Be Locked / Unlocked Simultaneously

DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM: All Doors cannot be Locked / Unlocked Simultaneously
- All Doors cannot be Locked / Unlocked Simultaneously

DESCRIPTION

The multiplex network body ECU activates the door lock motors with switch signals from the master switch, door control switch and driver/passenger side door key cylinder.

WIRING DIAGRAM









INSPECTION PROCEDURE

PROCEDURE

1. INSPECT ALL DOORS LOCK/UNLOCK OPERATION

All the doors can be locked/unlocked simultaneously using the following items:

Door control switch on the master switch (switch operation)

Door control switch on the front passenger side (switch operation)

Door key cylinder linked with driver and passenger side door lock (key operation)

If all the doors cannot be locked/unlocked simultaneously, proceed to the next step according to the malfunctioning part shown in the table below.

Result:





C -- INSPECT FUSE (DR LCK, J/B, ECU-B, ALT)

B -- INSPECT PASSENGER SIDE DOORS LOCK/UNLOCK OPERATION
A -- Continue to next step.

2. INSPECT DRIVER SIDE DOORS LOCK/UNLOCK OPERATION





C -- INSPECT FRONT DOOR LOCK ASSEMBLY LH (DOOR LOCK MOTOR)

B -- INSPECT FRONT DOOR LOCK ASSEMBLY LH (DOOR LOCK MOTOR)

A -- INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY (DOOR CONTROL SWITCH)

3. INSPECT PASSENGER SIDE DOORS LOCK/UNLOCK OPERATION





C -- INSPECT FRONT DOOR LOCK ASSEMBLY RH (DOOR LOCK MOTOR)

B -- INSPECT FRONT DOOR LOCK ASSEMBLY RH (DOOR LOCK MOTOR)

A -- INSPECT DOOR CONTROL SWITCH ASSEMBLY

4. INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY (DOOR CONTROL SWITCH)

(a) Remove the power window regulator master switch assembly.





(b) Measure the resistance of the door control switch.

Standard (Double cab):





Standard (Access cab):





(c) Reinstall the power window regulator master switch assembly.

NG -- REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY
OK -- Continue to next step.

5. CHECK HARNESS AND CONNECTOR (MASTER SWITCH (SWITCH) - DRIVER SIDE J/B AND BODY GROUND)

(a) Disconnect the P9 power window regulator master switch connector.





(b) Disconnect the 1I driver side J/B connector.

(c) Measure the resistance.

Standard (Double cab):





Standard (Access cab):





(d) Reconnect the power window regulator master switch connector.

(e) Reconnect the driver side J/B connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE DRIVER SIDE JUNCTION BLOCK

6. INSPECT FRONT DOOR LOCK ASSEMBLY LH (DOOR LOCK MOTOR)

(a) Apply battery voltage to the door lock and check operation of the door lock motor.





NOTICE:
Do not apply battery voltage to any terminals except terminals 1 and 4.

OK:





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

7. INSPECT FRONT DOOR LOCK ASSEMBLY LH (DOOR LOCK AND UNLOCK SWITCH AND POSITION SWITCH)

(a) Measure the resistance of the door lock and unlock switch and position switch.





Standard (Door lock and unlock switch):





Standard (Position switch):





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

8. CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK LH - ECU, DRIVER SIDE J/B AND BODY GROUND)

(a) Disconnect the D19 front door lock connector.





(b) Disconnect the B5 multiplex network body ECU connector.

(c) Disconnect the 1H and 1I driver side J/B connectors.

(d) Measure the resistance.

Standard:





(e) Reconnect the front door lock connector.

(f) Reconnect the multiplex network body ECU connector.

(g) Reconnect the driver side J/B connectors.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE DRIVER SIDE JUNCTION BLOCK (MULTIPLEX NETWORK BODY ECU)

9. INSPECT FRONT DOOR LOCK ASSEMBLY LH (DOOR LOCK MOTOR)

(a) Apply battery voltage to the door lock and check operation of the door lock motor.





NOTICE:
Do not apply battery voltage to any terminals except terminals 1 and 4

OK:





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

10. INSPECT FRONT DOOR LOCK ASSEMBLY LH (DOOR LOCK AND UNLOCK SWITCH AND POSITION SWITCH)

(a) Measure the resistance of the door lock and unlock switch and position switch.





Standard (Door lock and unlock switch):





Standard (Position switch):





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

11. CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK LH - ECU, DRIVER SIDE J/B AND BODY GROUND)

(a) Disconnect the D19 front door lock connector.





(b) Disconnect the B5 multiplex network body ECU connector.

(c) Disconnect the 1H and 1I driver side J/B connectors.

(d) Measure the resistance of the wire harness side connectors.

Standard:





(e) Reconnect the front door lock connector.

(f) Reconnect the multiplex network body ECU connector.

(g) Reconnect the driver side J/B connectors.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

12. INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY (DOOR CONTROL SWITCH)

(a) Remove the power window regulator master switch assembly.





(b) Measure the resistance of the door control switch.

Standard (Double cab):





Standard (Access cab):





(c) Reinstall the power window regulator master switch assembly.

NG -- REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY
OK -- Continue to next step.

13. CHECK HARNESS AND CONNECTOR (MASTER SWITCH (SWITCH) - DRIVER SIDE J/B AND BODY GROUND)

(a) Disconnect the P9 power window regulator master switch connector.





(b) Disconnect the 1I driver side J/B connector.

(c) Measure the resistance.

Standard (Double cab):





Standard (Access cab):





(d) Reconnect the power window regulator master switch connector.

(e) Reconnect the driver side J/B connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE DRIVER SIDE JUNCTION BLOCK

14. INSPECT FUSE (DR LCK, J/B, ECU-B, ALT)

(a) Remove the DR LCK fuse from the driver side J/B.

(b) Remove the J/B, ECU-B and ALT fuses from the engine room R/B.

(c) Measure the resistance of the fuse.

Standard:

Below 1 Ohms

(d) Reinstall the DR LCK fuse.

(e) Reinstall the J/B, ECU-B and ALT fuses.

NG -- REPLACE FUSE
OK -- Continue to next step.

15. CHECK HARNESS AND CONNECTOR (DRIVER SIDE J/B ASSEMBLY - BODY GROUND)

(a) Disconnect the 1A, 1C, and 1H driver side J/B connectors.

(b) Measure the voltage and resistance.





Standard:





(c) Reconnect the driver side J/B connectors.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE DRIVER SIDE JUNCTION BLOCK

16. INSPECT DOOR CONTROL SWITCH ASSEMBLY

(a) Remove the door control switch (passenger side).





(b) Measure the resistance of the door control switch.

Standard:





(c) Reinstall the door control switch.

NG -- REPLACE DOOR CONTROL SWITCH ASSEMBLY
OK -- Continue to next step.

17. CHECK HARNESS AND CONNECTOR (DOOR CONTROL SWITCH - DRIVER SIDE J/B AND BODY GROUND)

(a) Disconnect the D23 door control switch connector.





(b) Disconnect the 1I driver side J/B connector.

(c) Measure the resistance.

Standard:





(d) Reconnect the door control switch connector.

(e) Reconnect the driver side J/B connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE DRIVER SIDE JUNCTION BLOCK

18. INSPECT FRONT DOOR LOCK ASSEMBLY RH (DOOR LOCK MOTOR)

(a) Apply battery voltage to the door lock and check operation of the door lock motor.





NOTICE:
Do not apply battery voltage to any terminals except terminals 1 and 4.

OK:





NG -- REPLACE FRONT DOOR LOCK ASSEMBLY RH
OK -- Continue to next step.

19. INSPECT FRONT DOOR LOWER FRAME BRACKET GARNISH RH (DOOR LOCK AND UNLOCK SWITCH AND POSITION SWITCH)

(a) Measure the resistance of the door lock and unlock switch and position switch.





Standard (Door lock and unlock switch):





Standard (Position switch):





NG -- REPLACE FRONT DOOR LOCK ASSEMBLY RH
OK -- Continue to next step.

20. CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK RH - ECU, DRIVER SIDE J/B AND BODY GROUND)

(a) Disconnect the D20 front door lock connector.





(b) Disconnect the B5 multiplex network body ECU connector.

(c) Disconnect the 1H and 1I driver side J/B connectors.

(d) Measure the resistance.

Standard:





(e) Reconnect the front door lock connector.

(f) Reconnect the multiplex network body ECU connector.

(g) Reconnect the driver side J/B connectors.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE DRIVER SIDE JUNCTION BLOCK (MULTIPLEX NETWORK BODY ECU)

21. INSPECT FRONT DOOR LOCK ASSEMBLY RH (DOOR LOCK MOTOR)

(a) Apply battery voltage to the door lock and check operation of the door lock motor.





NOTICE:
Do not apply battery voltage to any terminals except terminals 1 and 4.

OK:





NG -- REPLACE FRONT DOOR LOCK ASSEMBLY RH
OK -- Continue to next step.

22. INSPECT FRONT DOOR LOCK ASSEMBLY RH (DOOR LOCK AND UNLOCK SWITCH AND POSITION SWITCH)

(a) Measure the resistance of the door lock and unlock switch and position switch.





Standard (Door lock and unlock switch):





Standard (Position switch):





NG -- REPLACE FRONT DOOR LOCK ASSEMBLY RH
OK -- Continue to next step.

23. CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK RH - ECU, DRIVER SIDE J/B AND BODY GROUND)

(a) Disconnect the D20 front door lock connector.





(b) Disconnect the B5 multiplex network body ECU connector.

(c) Disconnect the 1H and 1I driver side J/B connectors.

(d) Measure the resistance.

Standard:





(e) Reconnect the front door lock connector.

(f) Reconnect the multiplex network body ECU connector.

(g) Reconnect the driver side J/B connectors.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

24. INSPECT DOOR CONTROL SWITCH ASSEMBLY

(a) Remove the door control switch (passenger side).





(b) Measure the resistance of the door control switch.

Standard:





(c) Reinstall the door control switch.

NG -- REPLACE DOOR CONTROL SWITCH ASSEMBLY
OK -- Continue to next step.

25. CHECK HARNESS AND CONNECTOR (DOOR CONTROL SWITCH - DRIVER SIDE J/B AND BODY GROUND)

(a) Disconnect the D23 door control switch connector.





(b) Disconnect the 1I driver side J/B connector.

(c) Measure the resistance.

Standard:





(d) Reconnect the door control switch connector.

(e) Reconnect the driver side J/B connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE DRIVER SIDE JUNCTION BLOCK