Inspection Procedure

1. Check whether the wireless door lock functions by operating the transmitter switch (See OPERATION CHECK  ).

   HINT

   When the wireless door LOCK/UNLOCK operation can be performed, it means that the wireless signal from the transmitter is properly input to the main body ECU RH (cowl side junction block RH)

   Result 

   RESULT
   
   

   Result	Proceed to
   Answer-back functions do not operate	A
   Wireless door lock function do not operate	B

B: GO TO SMART ACCESS SYSTEM WITH PUSH-BUTTON START  (See ALL DOOR ENTRY LOCK/UNLOCK FUNCTIONS AND WIRELESS FUNCTIONS DO NOT OPERATE )

A: Go to next step 

1. Connect the Techstream to the DLC3
2. Turn the engine switch on (IG)
3. Enter the following menus" Body Electrical / Body / Active Test
4. Perform the Active Test according to the display on the Techstream

   Body (Main Body ECU RH (Cowl Side Junction Block RH)) 

   DATA LIST
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   Hazard	Turn signal flasher relay	ON/OFF	Observe headlights and rear combination lights for correct operation
   Wireless Buzzer	Wireless door lock buzzer	ON/OFF	-

   Result 

   RESULT
   
   

   Result	Proceed to
   Hazard warning lights do not flash correctly	A
   Wireless door lock buzzer does not sound correctly	B
   Wireless door lock buzzer and hazard warning lights work correctly	C

B: Go to step  5

C: REPLACE MAIN BODY ECU RH (COWL SIDE JUNCTION BLOCK RH) 

A: Go to next step 

1. Check that the hazard warning lights flash when the hazard warning signal switch is pressed

   OK: Hazard warning lights flash continuously. 

NG: GO TO LIGHTING SYSTEM  (See PROBLEM SYMPTOMS TABLE )

OK: Go to next step 

1. Disconnect the J30 turn signal flasher connector and J74 Main Body ECU RH connector
2. Measure the resistance according to the value(s) in the table below

   Standard Resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   J30-8 (HAZ) - J74-2 (HAZ)	Always	Below 1 Ω

Fig 1: Identifying J30 And J74 Connectors Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE MAIN BODY ECU RH (COWL SIDE JUNCTION BLOCK RH) 

1. Check the buzzer resistance.
   1. Disconnect the A18 buzzer connector.
   2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION
      
      

      Tester Connection	Condition	Specified Condition
      1 - 2	Always	950 to 1050 Ω

      NOTE: When battery voltage is directly applied to the buzzer, the buzzer does not sound.
      Fig 2: Identifying A18 Connector Terminals

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE WIRELESS DOOR LOCK BUZZER  (See REMOVAL  )

OK: Go to next step 

1. Disconnect the A18 buzzer connector and A36 ECU connector
2. Measure the resistance according to the value(s) in the table below

   Standard Resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   A36-2 (BZR) - Body ground	Always	10 kΩ or higher
   A18-1 - A36-2(BZR)	Always	Below 1 Ω
   A18-2 - Body ground	Always	Below 1 Ω

Fig 3: Identifying A18 And A36 Connectors Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE MAIN BODY ECU RH (COWL SIDE JUNCTION BLOCK RH)