Only Wireless Control Function is Inoperative: Procedure

1. Check the wireless door lock control functions.Refer to OPERATION CHECK .

   OK

   Each function of wireless door lock control system operates normally using transmitter switch.

NG → See step   2 

OK → END 

1. 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 → See step   4 

OK: Go to next step 

HINT: 

Use the following standard test procedure to check the transmitter again.

1. 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.
2. 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 → See step   5 

OK: Go to next step 

1. Temporarily replace the transmitter battery with a new or normally functioning one.Refer to REMOVAL
2. 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 IS DEFECTIVE) 

1. Check that the room light illumination operates normally.
2. Inspect the wireless door lock buzzer See step  4.
   RESULT:
   
   

   Result	Proceed to
   Room light and wireless door lock buzzer is normally	A
   Room light is malfunction	B
   Wireless door lock buzzer is malfunction	C

B → Go to LIGHTING SYSTEM 

C → REPLACE WIRELESS DOOR LOCK BUZZER 

A: Go to next step 

1. 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.
   Fig 1: Identifying Room Light Flash (Wireless Door Lock Buzzer Sound) Pattern

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check that the system has switched to self-diagnostic mode by checking the room light flash (wireless door lock buzzer sound) pattern.

   OK

   Flash (sound) pattern is same as illustration.

NG → See step   11 

OK: Go to next step 

Fig 2: Room Light Output Graph

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. 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 room light (wireless door lock buzzer).
   RESULT:
   
   

   Result	Proceed to
   Unmatching recognition code is output	A
   Normal waves (light flash or buzzer sound patterns) is output	B
   No diagnosis outputs	C

B → REPLACE INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU) 

C → See step   9 

A: Go to next step 

1. Check that the system can be switched to rewrite mode or add mode, and that a recognition code can be registered.Refer to REGISTRATION .

   OK

   Recognition code can be registered.

NG → See step   14 

OK → END 

1. Temporarily replace the door lock control transmitter with a new or normally functioning one.Refer to REMOVAL .
2. Held down the door control transmitter's switch.
3. Check that an unmatching recognition code is output.

   OK

   Unmatching recognition code is output.

NG → See step   10 

OK → REPLACE DOOR CONTROL TRANSMITTER MODULE 

1. Temporarily replace the door lock control receiver with a new or normally functioning one.Refer to REMOVAL .
2. 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 INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU) 

OK → END (DOOR CONTROL RECEIVER IS DEFECTIVE) 

Fig 3: Inspecting Unlock Warning Switch Assembly

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Remove the switch.
2. Measure the resistance of the switch.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   1 - 2	Not pushed	10 kΩ or higher
   	Pushed	Below 1 Ω

NG → REPLACE UNLOCK WARNING SWITCH ASSEMBLY 

OK: Go to next step 

Fig 4: Unlock Warning Switch - Main Body ECU Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the E6 receiver connector.
2. Disconnect the IE junction block connector.
3. Measure the resistance of the wire harness side connectors.

   Standard resistance

   Tester Connection	Specified Condition
   IE-26 (KSW) - E6-1	Below 1 Ω
   E6-2 - Body ground
   IE-26 (KSW) or E6-1 - Body ground	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: Go to next step 

Fig 5: Identifying L18 Receiver Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Reconnect the L18 receiver connector.
2. Measure the voltage of the connector.

   Standard voltage

   Tester Connection	Condition	Specified Condition
   L18-2 (RDA) - Body ground	Ignition switch OFF, all doors closed and transmitter switch not pressed	11 to 14 V
   	Ignition switch OFF, all doors closed and transmitter switch pressed	Pulse generation

NG → See step   14 

OK → REPLACE INSTRUMENT PANEL JUNCTION BLOCK (MAIN BODY ECU) 

1. Temporarily replace the door control transmitter module with a new or normally functioning one.Refer to REMOVAL .
2. 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 IS DEFECTIVE)