Inspection Procedure

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

OK: END 

NG: Go to next step 

1. After replacing the transmitter battery with a new or normal one, check that the doors can lock and unlock, using the transmitter LOCK/UNLOCK switch.

OK: REPLACE TRANSMITTER BATTERY 

NG: Go to next step 

1. Using the transmitter to LOCK/UNLOCK doors in standard operation, check that the doors can lock and unlock.
   NOTE: Standardized test procedure: Press the transmitter switch for 1 second, directing the beam to driver's door outside handle from a distance of 1 m (39.4 in.). The transmitter should be pointed directly at the door handle, i.e at 90° angle to the vehicle body.

NG: REPLACE DOOR CONTROL TRANSMITTER 

OK: Go to next step 

1. Check that 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) "

A: Go to next step 

1. When using the Techstream:

   Switch to the 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. When not using the Techstream:

   Switch to the self-diagnostic mode by operating the ignition key cylinder.

   1. Insert the key into the ignition key cylinder and remove it under the initial vehicle condition (See OPERATION CHECK  ).
   2. Within 5 seconds after the above step, insert the key into the ignition key cylinder and turn the ignition switch from ON to OFF once.
   3. Within 30 seconds after the above step, turn the ignition switch from ON to OFF 9 times.
      NOTE: If operation has failed, the system will return to the normal mode.

      HINT:

      • Operation of the ignition switch from OFF to ON will end the self-diagnostic mode.
      • Do not lock or unlock doors during the self-diagnostic mode.
3. Check that the system has switched to self-diagnostic mode by the answer-back of the wireless door lock buzzer sound.
Fig 1: Blinking Pattern For Wireless Door Lock Buzzer
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG:  Go to step  10

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 with the sound of the wireless door lock buzzer).
   Fig 2: Blinking Pattern For Wireless Door Lock Buzzer Output

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Result 

   RESULT CHART
   
   

   Condition	Proceed to
   Normal waves patterns from the wireless door lock buzzer are output for LOCK, UNLOCK, PANIC or PWR DOOR	A
   Unmatched recognition code is output.	B
   No diagnostic outputs are recorded	C

A:  Go to step  18

C:  Go to step  8

B: Go to next step 

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

NG:  Go to step  9

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.

NG:  Go to step  14

OK: REPLACE DOOR CONTROL TRANSMITTER 

1. Replace the door control receiver with normal one.

   OK: 

   The system returns to normal operation. 

NG:  Go to step  18

OK: REPLACE DOOR CONTROL RECEIVER 

1. When the input method for switching the system to self-diagnostic mode is correct, proceed to A.
2. When the input method for switching the system to self-diagnostic mode is incorrect, proceed to B.

B:  Go to step  5

A: Go to next step 

1. Using the Techstream, check the DATA LIST for proper functioning of the un-lock warning switch.

   BODY (Multiplex network body ECU): 

   DATA LIST
   
   

   Tester Display	Measurement Item/Range	Normal Condition
   Key Unlock Warning SW	Un-lock warning switch signal/ON or OFF	ON: Key is in ignition key cylinder OFF: No key is in ignition key cylinder

OK:  Go to step  14

NG: Go to next step 

1. Inspect the resistance of the un-lock warning switch.

   Standard resistance 

   TERMINALS RESISTANCE CHART
   
   

   Terminal No.	Condition	Specified Condition
   1-2	Switch free (Key removed)	10 kΩ or higher
   1-2	Switch pushed (Key set)	Below 1 Ω

Fig 3: Identifying Un-Lock Warning Switch Assembly Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE UN-LOCK WARNING SWITCH ASSEMBLY 

OK: Go to next step 

1. Disconnect the B6 ECU connector and K4 switch connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TERMINALS RESISTANCE CHART
   
   

   Symbol (Terminal No.)	Specified Condition
   KSW (B6-21) - K4-2	Below 1 Ω
   KSW (B6-21) - Body ground	10 kΩ or higher
   K4-1 - Body ground	Below 1 Ω

Fig 4: Identifying B6 ECU Connector And K4 Switch Connectors Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the D4 receiver connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard 

   TERMINALS RESISTANCE CHART
   
   

   Symbol (Terminal No.)	Specified Condition
   +B (D4-5) - Body ground	10 to 14 V
   GND (D4-1) - Body ground	Below 1 Ω

Fig 5: Identifying D4 Door Control Receiver Connector Checking Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Reconnect the D4 receiver connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard 

   TERMINALS RESISTANCE CHART
   
   

   Terminal No.	Condition	Specified Condition
   RDA (D4-2) - Body ground	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 D4 Receiver Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:  Go to step  17

NG: Go to next step 

1. Disconnect the D4 receiver connector and B9 ECU connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TERMINALS RESISTANCE CHART
   
   

   Symbol (Terminal No.)	Specified Condition
   RDA (D4-2) - RDA (B9-12)	Below 1 Ω
   RDA (D4-2) - Body ground	10 kΩ or higher
   RDA (B9-12) - Body ground	10 kΩ or higher

Fig 7: Identifying D4 Receiver Connector And B9 ECU Connectors Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Replace the door control receiver with normal one.

   OK: 

   The system returns to normal operation. 

OK: REPLACE DOOR CONTROL RECEIVER 

NG: Go to next step 

1. Replace the multiplex network body ECU with normal one.

   OK: 

   The system returns to normal operation. 

NG: REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY 

OK: REPLACE MULTIPLEX NETWORK BODY ECU