Only Wireless Control Function is Inoperative: Procedure

1. When the door control switch on the power window regulator master switch assembly is operated, check that the locked doors unlock. Refer to OPERATION CHECK [03/2012 - 05/2013] .

   OK

   Locked doors unlock.

NG → See step   21 

OK: Go to next step 

1. Check that the key reminder warning buzzer operates normally. Refer to OPERATION CHECK [03/2012 - ] .

   OK

   Key reminder warning buzzer operates normally.

NG → See step   20 

OK: Go to next step 

1. Switch to self-diagnostic mode by operating the ignition key cylinder.
   1. Insert the key into the ignition key cylinder and remove it.
   2. Within 5 seconds after the key is removed, insert it into the ignition key cylinder and then turn the ignition switch to ON then off once. (End in off)
   3. Within 30 seconds after turning the ignition switch off, perform the following 9 times: Turn the ignition switch to ON then off. (End in off)
      NOTE: If the system fails to enter self-diagnostic mode, the system will return to normal mode.

      HINT: 

      Turning the ignition switch to ON after the procedure above has been completed will end the self-diagnostic mode.

2. Check that the system has switched to self-diagnostic mode by checking the interior light output pattern.
   Fig 1: Interior Light Output Pattern

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Check that the system has switched to self-diagnostic mode by checking the wireless door lock buzzer output pattern.
   Fig 2: Identifying Wireless Door Lock Buzzer Output Pattern

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK

   Flash pattern is same as shown above.

NEXT: Go to next step 

1. Check the diagnostic outputs when the door control transmitter module set sub-assembly switch is held down. The diagnostic outputs can be checked by the interior light and wireless door lock buzzer patterns.
   Fig 3: Identifying Interior Light And Wireless Door Lock Buzzer Patterns

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   RESULT
   
   

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

B → See step   5 

C → See step   6 

A → See step   17 

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

   OK

   Recognition code can be registered.

NG → See step   22 

OK → END 

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

   OK

   Unmatching recognition code is output.

NG → See step   10 

OK: Go to next step 

Fig 4: Identifying Lead Wire

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Remove the battery from the door control transmitter module that does not operate. Attach a lead wire (0.6 mm (0.0236 in.)) or less in diameter including wire sheath) with tape or equivalent to the negative terminal. Refer to REPLACEMENT [03/2012 - ] .
   NOTE: Do not wrap the lead wire around the terminal, wedge it between terminals, or solder it. The terminal may be deformed or damaged, and the battery will not be able to be installed correctly.
   TEXT IN ILLUSTRATION
   
   

   *1

   Lead Wire

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 any static electricity that has built up by touching, for example, the vehicle to prevent the door control transmitter module set from being damaged.
3. Measure the voltage according to the value(s) in the table below.
   Fig 5: Identifying GND

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT: 

   When measuring the battery voltage, press one of the transmitter switches.

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   Battery positive (+) - Battery negative (-)	Door control transmitter lock or unlock switch pushed	2.5 to 3.2 V

   TEXT IN ILLUSTRATION
   
   

   *a

   GND

NG → See step   8 

OK → See step   19 

1. Replace the transmitter battery. Refer to REPLACEMENT [03/2012 - ] .

NEXT: Go to next step 

1. Inspect the diagnostic outputs when the door control transmitter module set sub-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.
   Fig 6: Identifying Interior Light And Wireless Door Lock Buzzer Patterns

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   RESULT
   
   

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

B → See step   23 

A → END (TRANSMITTER BATTERY IS DEFECTIVE) 

1. Bring the transmitter near the door control receiver, and perform a wireless operation check.

   OK

   Wireless functions operate normally.

   HINT: 

   • When the transmitter is brought near the door control receiver, 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.

NG → AFFECTED BY WAVE INTERFERENCE 

OK: Go to next step 

1. Disconnect the H28 door control receiver connector.
2. Measure the resistance and voltage according to the value(s) in the table below.
   Fig 7: Identifying Front View Of Wire Harness Connector (Door Control Receiver)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   H28-7 (+B) - Body ground	Always	11 to 14 V

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H28-12 (GND) - Body ground	Always	Below 1 Ω

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Door Control Receiver)

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Reconnect the H28 door control receiver connector.
2. Measure the voltage according to the value(s) in the table below.
   Fig 8: Identifying Component With Harness Connected (Door Control Receiver)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   H28-4 (RDA) - Body ground	Ignition switch off, all doors closed and door control transmitter switch off	11 to 14 V
   	Ignition switch off, all doors closed and door control transmitter switch on	pulse generation

   TEXT IN ILLUSTRATION
   
   

   *a	Component with harness connected (Door Control Receiver)

NG → See step   18 

OK: Go to next step 

1. Disconnect the D6 main body ECU (network gateway ECU) connector.
2. Disconnect the H28 door control receiver connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   D6-7 (RDA) - H28-4 (RDA)	Always	Below 1 Ω
   D6-6 (PRG) - H28-5 (PRG)	Always	Below 1 Ω
   D6-7 (RDA) or H28-4 (RDA) - Body ground	Always	10 kΩ or higher
   D6-6 (PRG) or H28-5 (PRG) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Temporarily replace the door control receiver with a new or normally functioning one. Refer to REMOVAL [03/2012 - ] .

NEXT: Go to next step 

1. Perform the Registration procedures. Refer to REGISTRATION [03/2012 - ] .

NEXT: Go to next step 

1. Check that the doors can be locked and unlocked by using the transmitter LOCK and UNLOCK switches.

   OK

   Doors can be locked and unlocked with transmitter.

NG → See step   24 

OK → END (DOOR CONTROL RECEIVER IS DEFECTIVE)