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Only Wireless Control Function Is Inoperative








DOOR LOCK: WIRELESS DOOR LOCK CONTROL SYSTEM: Only Wireless Control Function is Inoperative

Only Wireless Control Function is Inoperative

DESCRIPTION

The door control receiver receives signals from the transmitter and sends these signals to the main body ECU. The main body ECU then controls all doors by sending lock / unlock signals to each door, and sends hazard flasher relay signals to the turn signal flasher relay (hazard warning lights).

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK WIRELESS DOOR LOCK CONTROL FUNCTIONS
OK:
Each function of wireless door lock control system operates normally using transmitter switches Component Tests and General Diagnostics.
OK -- END
NG -- Continue to next step.
2. CHECK TRANSMITTER LED ILLUMINATION
(a) Check that the transmitter's LED illuminates 3 times when the switch is pressed 3 times.
OK:
Transmitter's LED illuminates 3 times when switch is pressed 3 times.
NG -- REPLACE TRANSMITTER BATTERY
OK -- Continue to next step.
3. CHECK WIRELESS DOOR LOCK CONTROL FUNCTIONS (STANDARD OPERATION FUNCTION)
HINT: Use the following standard test procedure to check the transmitter again.
(a) Hold the transmitter approximately 1 m (3.28 ft.) from the driver side door outside handle. The transmitter must be held parallel to the ground and perpendicular to the side of the vehicle.
(b) Press and hold either the LOCK or UNLOCK transmitter switch for 1 second, and check that the doors are locked or unlocked, accordingly.
OK:
Doors can be locked and unlocked with transmitter switches.
NG -- CHECK NO. 1 ROOM LIGHT ASSEMBLY
OK -- REPLACE DOOR CONTROL TRANSMITTER MODULE
4. REPLACE TRANSMITTER BATTERY
(a) After replacing the transmitter battery, check that the doors can be locked and unlocked using the transmitter switches.
OK:
Doors can be locked and unlocked with transmitter.
NG -- REPLACE DOOR CONTROL TRANSMITTER MODULE
OK -- END (TRANSMITTER BATTERY DEFECTIVE)
5. CHECK NO. 1 ROOM LIGHT ASSEMBLY
(a) Check that the No. 1 room light illumination operates normally.
OK:
No. 1 room light illumination operates normally.
NG -- GO TO LIGHTING SYSTEM
OK -- Continue to next step.
6. SWITCH TO SELF DIAGNOSTIC MODE
(a) Switch to self-diagnostic mode by operating the ignition key cylinder.
(1) Make sure the vehicle is in its initial condition. Then insert the key into the ignition key cylinder and remove it.
(2) Within 5 seconds of removing the key, insert the key into the ignition key cylinder (ignition switch OFF). Then turn the ignition switch ON and OFF.
(3) Within 30 seconds of turning the ignition switch OFF, perform the following operation 9 times: turn the ignition switch ON and OFF.
NOTE: If the system cannot enter self-diagnostic mode, the system returns to normal mode.
HINT:
- Turning the ignition switch ON after the above operations have been completed ends self-diagnostic mode.
- Do not lock or unlock doors during self-diagnostic mode.




(b) Check that the system has switched to self-diagnostic mode by checking the No. 1 room light assembly flash pattern.
OK:
Flash pattern is same as illustration on left.
NG -- CONFIRM PROCEDURES TO ENTER SELF DIAGNOSTIC MODE
OK -- Continue to next step.
7. CHECK BY SELF DIAGNOSTIC MODE
(a) Inspect the diagnosis outputs when the door control transmitter switch is held down. The diagnosis outputs can be checked by the flash patterns of the No. 1 room light assembly.





Result:






C -- CHECK RESPONSE OF DOOR CONTROL RECEIVER
B -- REPLACE MAIN BODY ECU
A -- Continue to next step.
8. REGISTER RECOGNITION CODE
(a) Check that the system can be switched to rewrite mode or add mode, and that a recognition code can be registered.
OK:
Recognition code can be registered.
NG -- REPLACE DOOR CONTROL TRANSMITTER MODULE
OK -- END
9. CHECK RESPONSE OF DOOR CONTROL RECEIVER
(a) When a new or normally functioning door lock control transmitter switch for the same type vehicle is held down, check that an unmatching recognition code is output.
OK:
Unmatching recognition code is output.
OK -- REPLACE DOOR CONTROL TRANSMITTER MODULE
NG -- Continue to next step.
10. REPLACE DOOR CONTROL RECEIVER
(a) After replacing the door control receiver, check that the doors can be locked and unlocked by using the transmitter LOCK and UNLOCK switches.
OK:
Doors can be locked and unlocked with transmitter.
NG -- REPLACE MAIN BODY ECU
OK -- END
11. CONFIRM PROCEDURES TO ENTER SELF DIAGNOSTIC MODE

Result:





B -- SWITCH TO SELF DIAGNOSTIC MODE
A -- Continue to next step.
12. INSPECT UNLOCK WARNING SWITCH ASSEMBLY
(a) Remove the unlock warning switch.




(b) Measure the resistance.
Standard resistance:






NG -- REPLACE UNLOCK WARNING SWITCH ASSEMBLY
OK -- Continue to next step.
13. CHECK HARNESS AND CONNECTOR (DOOR CONTROL RECEIVER - MAIN BODY ECU)




(a) Disconnect the D33 main body ECU connector.
(b) Disconnect the J13 door control receiver connector.
(c) Measure the resistance.
Standard resistance:





(d) Reconnect the main body ECU connector.
(e) Reconnect the door control receiver connector.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
14. CHECK DOOR CONTROL RECEIVER (OUTPUT)




(a) Measure the voltage of the connector.
Standard voltage:






OK -- REPLACE MAIN BODY ECU
NG -- Continue to next step.
15. REPLACE DOOR CONTROL TRANSMITTER MODULE
(a) Check that the doors can be locked and unlocked by using the transmitter LOCK and UNLOCK switches.
OK:
Doors can be locked and unlocked with transmitter.
NG -- REPLACE DOOR CONTROL RECEIVER
OK -- END (DOOR CONTROL TRANSMITTER MODULE DEFECTIVE)
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