Only Wireless Control Function is Inoperative: Procedure

OK

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

NG → See step   2 

OK → SYSTEM IS OK 

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 

1. Check standard LOCK (PANIC), UNLOCK and LUGGAGE switch operation.
   NOTE:

   Standardized test procedure: press the transmitter switch for 1 second, directing the transmitter to the driver side door outside handle from a distance of 1 m (3.28 ft.). The transmitter should be pointed directly at the handle, i.e. at a 90° angle to the vehicle body.

NG → See step   5 

OK → REPLACE DOOR CONTROL TRANSMITTER ASSEMBLY 

1. 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 ASSEMBLY 

OK → END 

1. Check that the wireless door lock buzzer sounds.

   OK

   Wireless door lock buzzer sounds.

NG → PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE 

OK: Go to next step 

1. Switch to self-diagnostic mode on the Techstream.
   1. Connect the Techstream to the DLC3.
   2. Turn the ignition switch ON and push the Techstream main switch ON.

      HINT: 

      Please refer to the Techstream operator's manual for further details.

2. Switch to self-diagnostic mode by operating the ignition key cylinder.
   1. Put the vehicle under the vehicle's initial condition, insert the key into the ignition key cylinder and remove it.
   2. Within 5 seconds of removing the key in the previous step, insert the key into the ignition key cylinder (ignition key OFF). Then turn the ignition switch to ON and return it to OFF.
   3. Within 30 seconds returning the ignition switch to OFF again in the previous step, perform the following 9 times: Turn the ignition switch to ON and return it to OFF.
      NOTE:

      If the change to self-diagnostic mode has failed, the system will return to normal mode.

      HINT: 

      • Turning the ignition switch to ON will end self-diagnostic mode.
      • Do not lock or unlock doors during self-diagnostic mode.
3. Check that the system has switched to self-diagnostic mode by checking the wireless door lock buzzer sound. Compare the buzzer sound to the illustration.
   Fig 1: Buzzer Output Blinking Pattern

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK

   Buzzer sound should be same as illustration.

NG → See step   11 

OK: Go to next step 

1. Inspect the diagnosis outputs when the door control transmitter switch is held down. The diagnosis outputs can be checked by listening to the wireless door lock buzzer.
   Fig 2: Buzzer Diagnosis Outputs Blinking Pattern

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   RESULT:
   
   

   Result	Proceed to
   Normal waves (buzzer sound patterns) for LOCK (PANIC), UNLOCK or LUGGAGE switches are output	A
   Unmatching recognition code is output and buzzer is ON	B
   No diagnosis outputs are present and buzzer is OFF	C

C → See step   9 

B → REPLACE THEFT WARNING ECU 

A: Go to next step 

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

   OK

   Recognition code can be registered.

NG → See step   10 

OK → SYSTEM IS OK 

1. Prepare a new or functioning door control transmitter from 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 → See step   14 

OK → REPLACE DOOR CONTROL TRANSMITTER ASSEMBLY 

1. After replacing the inner rear view mirror, 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.

NG → REPLACE THEFT WARNING ECU 

OK → END 

B → See step   6 

A: Go to next step 

Fig 3: Identifying T7 ECU Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the T7 ECU connector.
2. Measure the voltage and resistance of the wire harness side connector.

   Standard voltage

   Standard resistance 

   Tester Connection	Specified Condition
   T7-1 (+B) - Body ground	11 to 14 V

   Tester Connection	Specified Condition
   T7-20 (GND) - Body ground	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

Fig 4: Identifying I19 Mirror Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the I19 receiver connector.
2. Disconnect the T7 ECU connector.
3. Measure the voltage and resistance of the wire harness side connectors.

   Standard resistance

   Tester Connection	Specified Condition
   I19-10 (DATA) - T7-29 (RDA)	Below 1 Ω
   I19-9 (RSSI) - T7-30 (RSSI)	Below 1 Ω
   I19-5 (+5) - T7-15 (RCO)	Below 1 Ω
   I19-8 (E1) - Body ground	Below 1 Ω
   I19-10 (DATA) or T7-29 (RDA) - Body ground	10 kΩ or higher
   I19-9 (RSSI) or T7-30 (RSSI) - Body ground	10 kΩ or higher
   I19-5 (+5) or T7-15 (RCO) - Body ground	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

Fig 5: Identifying I19 Receiver Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Reconnect the I19 connector.
2. Measure the voltage of the connector.

   Standard voltage

   Tester Connection	Condition	Specified Condition
   I19-10 (DATA) - Body ground	Ignition switch off, all doors closed and transmitter switch not pressed	11 to 14 V
   I19-10 (DATA) - Body ground	Ignition switch off, all doors closed and transmitter switch pressed	Pulse generation

NG → See step   10 

OK → REPLACE THEFT WARNING ECU