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 multiplex network body ECU. The multiplex network body ECU then controls the door operation by sending LOCK/UNLOCK signals to the appropriate door lock actuator.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. CHECK WIRELESS DOOR LOCK CONTROL FUNCTIONS
OK -- NORMAL
NG -- Continue to next step.
2. REPLACE TRANSMITTER BATTERY
(a) After replacing the transmitter battery with a new or correctly functioning one, check that the doors can be locked and unlocked by using the transmitter LOCK/UNLOCK switch.
OK:
Doors can be locked and unlocked with transmitter.
OK -- END
NG -- Continue to next step.
3. CHECK WIRELESS DOOR LOCK FUNCTIONS (STANDARD OPERATION)
(a) Check standard LOCK/UNLOCK switch operation.
NOTICE:
Standardized test procedure: press the transmitter switch for 1 second, directing the beam at the driver side door outside handle from a distance of 1 m (3.28 ft). The transmitter should be pointed directly at the door handle, i.e. at a 90° angle to the vehicle body.
OK -- NORMAL
NG -- Continue to next step.
4. CONFIRM ROOM LIGHT ON
(a) Check that the room light comes on.
OK:
Room light comes on.
NG -- REPAIR OR REPLACE ROOM LIGHT ASSEMBLY
OK -- Continue to next step.
5. SWITCH TO SELF-DIAGNOSTIC MODE
(a) Switch to self-diagnostic mode by operating the ignition key cylinder.
(1) Put the vehicle into its initial condition Component Tests and General Diagnostics, and insert the key into the ignition key cylinder and remove it.
(2) Within 5 seconds of the key being removed (step 1), insert the key into the ignition key cylinder again (ignition key in the LOCK position). Then turn the ignition switch ON and return it to the LOCK position.
(3) Within 30 seconds of the ignition switch being returned to the LOCK position (step 2), perform the following 9 times: turn the ignition switch ON and return it to the LOCK position.
NOTICE:
If the change to self-diagnostic mode has failed, the system returns to normal mode.
HINT
* Turning the ignition switch ON after step (a)-(3) has been completed ends self-diagnostic mode.
* Do not lock or unlock any doors during self-diagnostic mode.
(b) Check that the system has switched to self-diagnostic mode by checking the blinking frequency of the room light.
OK:
The room light output should be as shown in the timing chart on the left.
NG -- CONFIRM INPUT METHOD OF SELF-DIAGNOSTIC MODE
OK -- Continue to next step.
6. 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 with the outputs of the room light.
Result:
C -- CHECK RESPONSE OF DOOR CONTROL RECEIVER
B -- REPLACE DRIVER SIDE JUNCTION BLOCK
A -- Continue to next step.
7. REGISTER RECOGNITION CODE
(a) Check that the system can switch to rewrite mode or add mode and a recognition code can be registered.
OK:
Recognition code can be registered.
NG -- REPLACE DOOR CONTROL RECEIVER WITH NORMAL ONE
OK -- NORMAL
8. CHECK RESPONSE OF DOOR CONTROL RECEIVER
(a) Prepare a new or correctly functioning door control transmitter switch for the same vehicle model. Press and hold a switch on the transmitter and check that an unmatching recognition code is output.
OK:
Unmatching recognition code is output.
NG -- CHECK HARNESS AND CONNECTOR (DOOR CONTROL RECEIVER - BATTERY AND BODY GROUND)
OK -- REPLACE DOOR CONTROL TRANSMITTER
9. CONFIRM INPUT METHOD OF SELF-DIAGNOSTIC MODE
Result:
B -- SWITCH TO SELF-DIAGNOSTIC MODE
A -- Continue to next step.
10. INSPECT UNLOCK WARNING SWITCH ASSEMBLY
(a) Remove the unlock warning switch.
(b) Measure the resistance.
Standard Resistance:
(c) Reinstall the unlock warning switch.
NG -- REPLACE UNLOCK WARNING SWITCH ASSEMBLY
OK -- Continue to next step.
11. CHECK HARNESS AND CONNECTOR (UNLOCK WARNING SWITCH - DRIVER SIDE J/B AND BODY GROUND)
(a) Disconnect the U1 unlock warning switch connector.
(b) Disconnect the 1K driver side J/B connector.
(c) Check the resistance.
Standard Resistance:
(d) Reconnect the unlock warning switch connector.
(e) Reconnect the driver side J/B connector.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
12. CHECK HARNESS AND CONNECTOR (DOOR CONTROL RECEIVER - BATTERY AND BODY GROUND)
(a) Disconnect the D7 door control receiver connector.
(b) Check the voltage and resistance.
Standard:
(c) Reconnect the door control receiver connector.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
13. CHECK DOOR CONTROL RECEIVER (OUTPUT)
(a) Turn the ignition switch ON.
(b) Measure the voltage of the connector.
Standard Voltage:
NG -- REPLACE DOOR CONTROL RECEIVER WITH NORMAL ONE
OK -- Continue to next step.
14. CHECK HARNESS AND CONNECTOR (DOOR CONTROL RECEIVER - DRIVER SIDE J/B (ECU AND GROUND))
(a) Disconnect the D7 door control receiver connector.
(b) Disconnect the B5 multiplex network body ECU connector.
(c) Check the resistance.
Standard Resistance:
(d) Reconnect the door control receiver connector.
(e) Reconnect the multiplex network body ECU connector.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
15. REPLACE DOOR CONTROL RECEIVER WITH NORMAL ONE
NG -- REPLACE DRIVER SIDE JUNCTION BLOCK
OK -- REPLACE DOOR CONTROL RECEIVER