Inspection Procedure

1. Check the wireless door lock control system (See OPERATION CHECK ).

OK: END 

NG: Go to next step 

1. Check that the transmitter LED lights up 3 times when the switch is pressed 3 times.

OK: Go to step  4

NG: Go to next step 

1. After replacing the transmitter battery with a new or normal one and then operating the transmitter LOCK/UNLOCK in the standard operation, check that the doors can lock and unlock even after operating it more than 3 times.

NG: REPLACE TRANSMITTER SUB-ASSEMBLY MODULE SET DOOR CONTROL 

OK: REPLACE TRANSMITTER BATTERY 

1. Check if UNLOCK-LOCK operates normally.

OK: END 

NG: Go to next step 

1. Check if the wireless door lock buzzer sounds.

   Result 

   RESULT CHART
   
   

   Condition	Proceed To
   Buzzer sounds	A
   Buzzer does not sound	Go to "No Answer-Back (Hazard Warning Light and Wireless Door Lock Buzzer)" (See PROBLEM SYMPTOMS TABLE )

A: Go to next step 

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

      HINT:

      Refer to the Techstream operator's manual for further details

2. Switch to self-diagnostic mode by performing the following (Manual operation):
   1. Put the vehicle under the initial condition (See OPERATION CHECK ). (Procedure "A")
   2. Insert the key into the ignition key cylinder and remove it. (Procedure "B")
   3. Within 5 seconds after the key is removed, insert the key into the ignition key cylinder again. (Procedure "C")
   4. Turn the ignition switch ON and turn it back OFF (Procedure "D")
   5. Within 30 seconds of turning the ignition switch OFF again, perform the following 9 times: Turn the ignition switch ON and turn it back to OFF (Procedure "E")

      HINT:

      • Turning the ignition switch to the ON position after Procedure "E" has been completed will end the self-diagnostic mode
      • Do not lock or unlock doors during the self-diagnostic mode.
      NOTE: If the self-diagnostic mode cannot be achieved, the system will return to normal mode.
3. Check that the system has switched to self-diagnostic mode by checking the sound of the wireless door lock buzzer.

   OK: The sound pattern of the wireless door lock buzzer should be the same as the patterns shown in the timing chart on the illustration. 

NG: Go to step  11

Fig 1: Identifying Buzzer ON And OFF Position

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step 

1. Check the diagnostic outputs when the door control transmitter switch is held down The diagnostic outputs can be checked by the sound of the wireless door lock buzzer.

Fig 2: Identifying Buzzer ON And OFF Position

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Result 

B: REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY 

C: Go to step  9

A: Go to next step 

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

   OK: The system can switch to the rewrite mode or add mode, and a recognition code can be registered. 

NG: Go to step  10

OK: END 

1. When a new or normal door control transmitter switch for the same type vehicle is held down, check that a diagnosis of unmatching recognition code is output

   OK: Unmatched recognition code is output. 

NG: Go to step  14

OK: REPLACE TRANSMITTER SUB-ASSEMBLY MODULE SET DOOR CONTROL 

1. Replace door control receiver with normal one

NG: REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY 

OK: REPLACE DOOR CONTROL RECEIVER 

1. Confirm input method for self-diagnostic mode.

Result 

B: Go to step  6

A: Go to next step 

1. Disconnect the unlock warning switch connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   1 - 2	Switch pressed (Key set)	Below 1 Ω
   1 - 2	Switch free (Key removed)	10 kΩ or higher

NG: REPLACE UN-LOCK WARNING SWITCH 

Fig 3: Inspecting Un-Lock Warning Switch

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step 

1. Disconnect the body ECU (B5) connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   B5-14 (KSW) - K3-2	Always	Below 1 Ω
   B5-14 (KSW) - Body ground	Always	10 kΩ or higher
   K3-1 - Body ground	Always	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 4: Checking Harness And Connector (Body ECU - UN-Lock Warning Switch)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step 

1. Disconnect the D7 door control receiver connector.
2. Measure the voltage according to the value(s) in the table below.

   Standard voltage 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Specified Condition
   D7-5 (+B) - Body ground	10 to 14 V
   D7-1 (E) - Body ground	Below 1 V

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 5: Identifying D7 Door Control Receiver Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step 

1. Reconnect D7 receiver connector, and check the voltage according to the value(s) in the table below.

   Standard voltage 

   SYMBOLS SPECIFIED CONDITION CHART
   
   

   Symbols (Terminal No.)	Condition	Specified Condition
   RDA (D7-2) - Body ground	Ignition switch OFF, no key in Ignition key cylinder, all doors closed and each transmitter switch OFF → ON	Below 1 V → Approx. 6 to 7 V → Below 1 V

   Fig 6: Identifying Door Control Receiver Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   NOTE: Check the output voltage with the bar graph display.

OK: Go to step  17

NG: Go to next step 

1. Disconnect the receiver (D7) connector and body ECU (B4) connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester Connection	Condition	Specified Condition
   D7-2 (RDA) - B4-4 (RDA)	Always	Below 1 Ω
   D7-2 (RDA) - Body ground	Always	10 kΩ or higher
   B4-4 (RDA) - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 7: Checking Harness And Connector (Body ECU - Door Control Receiver)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step 

1. Replace the door control receiver with normal one.

   OK: The system returns to normal operation. 

NG: REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY 

OK: REPLACE DOOR CONTROL RECEIVER