Wireless Door Lock Control System (W/Smart Key System): Inspection

1. Switch to self-diagnostic mode on the hand-held tester.

   HINT:

   This mode checks signal transmission/reception between the door control transmitter, door control receiver and theft warning ECU (theft deterrent ECU). If all of customer's door control transmitters do not function, it is possible the door control transmitter(s) and/or wire harness is malfunctioning.

   1. Switch to self-diagnostic mode on the hand-held tester.
   2. Turn the ignition switch ON.
   3. Please refer to the hand-held tester operators manual for further details.

   HINT:

   Do not lock or unlock doors during self-diagnostic mode.

2. Check that the system has switched to self-diagnostic mode by listening to the wireless door lock buzzer. The buzzer should sound according to the illustration on the left.
   Fig 1: Wireless Door Lock Buzzer Timing Chart

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Inspect the diagnosis outputs when the door control transmitter switch is held down (the diagnosis outputs can be checked with the sound of the wireless door lock buzzer).

Fig 2: Door Control Transmitter Switch Timing Chart

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

If "unmatching recognition code" or "no diagnosis output" is output, perform the inspections below.

• Wireless door lock transmitter.
• Door control receiver (inner mirror).
• Door control receiver (luggage).
• Wire harness between the door control receiver and theft warning ECU.

1. Inspect operation of the transmitter.

1. Remove the outer cover using a screwdriver.
2. Remove the battery (lithium battery) from the transmitter.
3. Install a new or normal battery (lithium battery).

   HINT:

   When a new or normal battery is not available, first connect 2 new 1.5 V batteries in series. Then connect leads to the batteries and use the leads to apply 3 V to the transmitter, as shown in the illustration.

4. From outside the vehicle, approximately 1 m (3.28 ft) from the driver side outside door handle, test the transmitter by pointing its key plate at the vehicle and pressing a transmitter switch.

OK: GO TO NEXT STEP 

The door lock can be operated via the transmitter. The LED lights up more than once. 

Fig 3: Inspecting Transmitter Sub-Assy Module Set Door Control

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

• The operational are differs depending on the user, the way the transmitter is held and the location.
• The transmitter's faint electric waves may be affected if the area has strong electric wave or noise. The transmitter's operation area may be shortened or the transmitter may not function.

1. Disconnect the I19 receiver connector.
2. Measure the resistance of the wire harness side connector.

   Standard: 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   I19-8 (+5) - Body ground	4.6 to 5.4 V
   I19-5 (E1) - Body ground.	Below 1 Ω

   If the result is not as specified, repair or replace the harness and connector.

3. Reconnect the I19 receiver connector.
4. Measure the resistance of the connector.

Standard: 

If the result is not as specified, replace the door control receiver.

Fig 4: Identifying Door Control Receiver Terminals (Inner Mirror)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the D30 receiver connector.
2. Measure the resistance and voltage of the wire harness side connector.

   Standard: 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   D30-1 (+5) - Body ground	4.6 to 5.4V
   D30-3 (GND) - Body ground.	Below 1 Ω

   If the result is not as specified, repair or replace the harness and connector.

   Fig 5: Identifying Door Control Receiver Terminals (Luggage)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Reconnect the D30 receiver connector.
4. Measure the voltage of the connector.

Standard: 

If the result is not as specified, replace the receiver.

1. Measure the resistance between terminals 1 and 2 of the buzzer.

Standard: Approximately 1 kΩ 

If the result is not as specified, replace the door control receiver.

Fig 6: Identifying Wireless Door Buzzer Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Measure the resistance of the controller.

Standard: 

If the result is not as specified, repair or replace the controller.

Fig 7: Identifying Wireless Door Lock Buzzer Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002