Only Wireless Control Function is Inoperative [08/2019 - 08/2022]: Procedure

1. When the door control switch on the multiplex network master switch assembly is operated, check that the locked doors unlock.

   Refer to OPERATION CHECK [08/2019 - 08/2022]

   OK

   Locked doors unlock.

Result: 

NG 

GO TO POWER DOOR LOCK CONTROL SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2019 - ] 

Result: 

OK 

See step  2

1. Check that the key reminder warning buzzer operates normally.

   OK

   Key reminder warning buzzer operates normally.

Result: 

NG 

GO TO KEY REMINDER WARNING SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 08/2022] 

Result: 

OK 

See step  3

1. When a known good registered door control transmitter assembly is used, check that the wireless functions operate normally.
   RESULT
   
   

   Result	Proceed to
   Wireless door lock/unlock function operates normally with a known good door control transmitter assembly.	A
   Wireless door lock/unlock function does not operate.	B

Result: 

B 

See step  5

Result: 

A 

See step  4

1. Inspect the battery capacity.
   1. Remove the battery from the door control transmitter assembly that does not operate. Attach a lead wire (0.6 mm (0.0236 in.) in diameter or less including wire sheath) with tape or equivalent to the negative (-) terminal.
      NOTE:

      Do not wrap the lead wire around a terminal, wedge it between the terminals, or solder it. A terminal may be deformed or damaged, and the battery will not be able to be installed correctly.

2. Carefully pull the lead wire out from the position shown in the illustration and install the previously removed transmitter battery.
   NOTE:

   When replacing the transmitter battery, before starting work, remove static electricity that has built up in the body by touching, for example, the vehicle to prevent the electrical key transmitter from being damaged.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

3. Check the transmitter battery voltage.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT: 

   Measure the transmitter battery voltage while pressing the lock or unlock switch on the door control transmitter assembly.

   Standard Voltage

   Item	Content
   Tester Connection	Transmitter battery positive (+) - Transmitter battery negative (-)
   Condition	Ignition switch off, all doors closed and lock or unlock switch is pressed
   Specified Condition	2.5 to 3.2 V

Result: 

OK 

REPLACE DOOR CONTROL AND TIRE PRESSURE MONITORING SYSTEM RECEIVER ASSEMBLY. Refer to  REMOVAL [08/2019 - 08/2022] 

Result: 

NG 

REPLACE TRANSMITTER BATTERY. Refer to  REPLACEMENT [08/2019 - 08/2022] 

1. Bring the door control transmitter assembly near the door control and tire pressure monitoring system receiver assembly, and perform a wireless operation check.

   HINT: 

   • When the door control transmitter assembly is brought near the door control and tire pressure monitoring system receiver assembly, the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.
   • If the inspection result is that the problem only occurs in certain locations or times of day, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check.

   OK

   Wireless functions operate normally.

Result: 

OK 

END (AFFECTED BY WAVE INTERFERENCE) 

Result: 

NG 

See step  6

1. Connect the Techstream to the DLC3.
2. Turn the Ignition switch to ON.
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Main Body / Utility / Wireless Diagnosis Mode.
5. Proceed to the next step in accordance with the prompts on the Techstream screen.
6. Check that the system has switched to self-diagnostic mode by checking the room light output pattern.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

7. Check that the system has switched to self-diagnostic mode by checking the wireless door lock buzzer output pattern.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Result: 

NEXT 

See step  7

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Inspect the diagnostic outputs when the door control transmitter assembly switch is held down. The diagnostic outputs can be checked by the flash patterns of the interior lights and the buzzer patterns of the wireless door lock buzzer.
   RESULT
   
   

   Result	Proceed to
   Normal wave (light flash pattern and buzzer pattern) is output.	A
   Unmatching recognition code is output.	B
   No diagnostic outputs.	C

Result: 

A 

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to  REMOVAL [08/2019 - ] 

Result: 

C 

See step  9

Result: 

B 

See step  8

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

   Refer to REGISTRATION [08/2019 - 08/2022]

   OK

   Recognition code can be registered.

Result: 

OK 

END (GO TO OPERATION CHECK). REFER TO SERVICE INFORMATION 

Result: 

NG 

See step  13

1. Prepare the door control transmitter assembly from another vehicle.
2. Press and hold down the door control transmitter assembly switch.
3. Check that an unmatching recognition code is output.

   OK

   Unmatching recognition code is output.

Result: 

OK 

REPLACE DOOR CONTROL AND TIRE PRESSURE MONITORING SYSTEM RECEIVER ASSEMBLY. Refer to  REMOVAL [08/2019 - 08/2022] 

Result: 

NG 

See step  10

1. Disconnect the O30 door control and tire pressure monitoring system receiver assembly.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Front view of wire harness connector (to Door Control and Tire Pressure Monitoring System Receiver Assembly)

2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   O30-12 (GND) - Body ground	Always	Below 1 Ω

3. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   O30-7 (+B) - Body ground	Always	11 to 14 V

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  11

1. Measure the voltage according to the value(s) in the table below.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *a	Component with harness connected (Door Control and Tire Pressure Monitoring System Receiver Assembly)

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   O30-4 (RDA) - Body ground	Ignition switch off, all doors closed and door control transmitter module set sub-assembly switch not pressed	11 to 14 V
   	Ignition switch off, all doors closed and door control transmitter module set sub-assembly switch pressed	Pulse generation

   RESULT
   
   

   Result	Proceed to
   OK	A
   NG	B

Result: 

B 

REPLACE DOOR CONTROL AND TIRE PRESSURE MONITORING SYSTEM RECEIVER ASSEMBLY. Refer to  REMOVAL [08/2019 - 08/2022] 

Result: 

A 

See step  12

1. Disconnect the F100 main body ECU (multiplex network body ECU) connector and the O30 door control and tire pressure monitoring system receiver assembly.
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F100-4 (RDA) - O30-4 (RDA)	Always	Below 1 Ω
   F100-4 (RDA) - Body ground	Always	10 kΩ or higher
   F100-5 (PRG) - O30-5 (PRG)	Always	Below 1 Ω
   F100-5 (PRG) - Body ground	Always	10 kΩ or higher

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  13

1. Temporarily replace the door control and tire pressure monitoring system receiver assembly. with a new or known good one.

   Refer to REMOVAL [08/2019 - 08/2022]

Result: 

NEXT 

See step  14

1. Perform the Registration procedure.

   Refer to REGISTRATION [08/2019 - 08/2022]

Result: 

NEXT 

See step  15

1. Check that the doors can be locked and unlocked by using the door control transmitter assembly lock and unlock switches.

   OK

   Doors can be locked and unlocked using door control transmitter assembly.

Result: 

OK 

END (DOOR CONTROL RECEIVER WAS DEFECTIVE) 

Result: 

NG 

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to  REMOVAL [08/2019 - ]