Inspection Procedure

1. Check the wireless door lock control functions (see OPERATION CHECK ).

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

NG: Go to 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: Go to 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: Go to step  5

OK: Go to next step 

1. Temporarily replace the transmitter battery with a new or normally functioning one. (see 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 SMART KEY SYSTEM ).

Result: 

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: Wireless Door Lock Buzzer Output Graph

   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: Go to 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: 

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

C: Go to 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 (see REGISTRATION ).

OK: Recognition code can be registered. 

NG: Go to step  14

OK: END 

1. Temporarily replace the door lock control transmitter with a new or normally functioning one (see 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: Go to step 10 

OK: REPLACE DOOR CONTROL TRANSMITTER MODULE 

1. Temporarily replace the door lock control receiver with a new or normally functioning one (see 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) 

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

Standard resistance 

NG: REPLACE UNLOCK WARNING SWITCH ASSEMBLY 

Fig 3: Checking Unlock Warning Switch Assembly Operation

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step 

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 

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

Fig 4: Identifying Main Body ECU And Unlock Warning Switch Assembly Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step 

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

Standard voltage 

NG: Go to step 14 

Fig 5: Identifying Door Control Receiver Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

1. Temporarily replace the door control transmitter module with a new or normally functioning one (see 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)