All Door Entry Lock/Unlock Functions and Wireless Functions do not Operate: Procedure

1. When the door control switch on the master switch assembly is operated, check that the doors unlock and lock according to switch operation. Refer to OPERATION CHECK .

   OK

   Door locks operate normally.

NG → See step   15 

OK: Go to next step 

1. Check if another registered key is available.

   Result

   Result	Proceed to
   Another registered key is not available.	A
   Another registered key is available.	B

B → See step   4 

A: Go to next step 

1. Register a new key. Refer to REGISTRATION .

NEXT: Go to next step 

1. Using the key registered in the previous step or another registered key, check that the entry function operates normally. Refer to OPERATION CHECK .

   OK

   Entry function operates normally.

NG → See step   7 

OK: Go to next step 

1. Check that the transmitter LED illuminates each time when the switch is pushed 3 times.

   Result

   Result	Proceed to
   Transmitter LED does not illuminate at all when switch is pushed 3 times.	A
   Transmitter LED illuminates each time when switch is pushed 3 times.	B
   Transmitter LED does not illuminate the second or third time.	C

   HINT: 

   If the transmitter LED does not illuminate the second or third time, replace the transmitter battery as it is depleted.

B → REPLACE ELECTRICAL KEY TRANSMITTER 

C → See step   17 

A: Go to next step 

1. Remove the transmitter battery from the key 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 .
   Fig 1: Identifying Transmitter Battery & Lead Wire

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   NOTE:

   Do not wrap the wire around the terminal, wedge it between the terminals, or solder it. A terminal may be deformed or damaged, and the transmitter 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.
3. Using an oscilloscope, check the transmitter battery voltage waveform.
   Fig 2: Using Oscilloscope To Check Transmitter Battery Voltage Waveform

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT: 

   When measuring the transmitter battery voltage, while operating the lock switch of a door outside handle assembly, bring the key within the entry operating range to perform the measurement. For the entry operating range, refer to System Description. Refer to SYSTEM DESCRIPTION .

   Standard

   Item	Content
   Tester Connection	Battery positive (+) - Battery negative (-)
   Tool Setting	0.5 V/DIV., 100 ms/DIV.
   Condition	Power switch off, all doors closed and lock switch pushed
   Specified Condition	2.2 to 3.2 V (Refer to the waveform)

   TEXT IN ILLUSTRATION
   
   

   *1	Measurement Position
   *2	GND

NG → See step   17 

OK → REPLACE ELECTRICAL KEY TRANSMITTER 

1. Bring the key near the door control receiver, and check the wireless function.

   HINT: 

   • When the key 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 indicates 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 function operates normally.

NG → See step   8 

OK → AFFECTED BY WAVE INTERFERENCE 

1. Check if functions other than the entry function operate when the power switch is off.

   Result

   Result	Proceed to
   Other functions do not operate.	A
   Other functions operate.	B

   HINT: 

   Perform this check using functions that do not require the power switch to be on (ACC or IG) in order to operate.

B → See step   18 

A: Go to next step 

1. Install the ECU-B2 and ECU-B fuses to the engine room relay block and junction block.
2. Disconnect the certification ECU (smart key ECU assembly) connector.
3. Measure the voltage and resistance according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   L62-1 (+B) - Body ground	Except power switch on (READY)	11 to 14 V
   L62-1 (+B) - Body ground	Power switch on (READY)	11 to 15.5 V
   L62-17 (CUTB) - Body ground	Except power switch on (READY)	11 to 14 V
   L62-17 (CUTB) - Body ground	Power switch on (READY)	11 to 15.5 V

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   L62-15 (E) - Body ground	Always	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   L63-5 (RC0) - S12-4 (+5)	Always	Below 1 Ω
   L63-15 (RDA) - S12-5 (DATA)	Always	Below 1 Ω
   L63-16 (RSSI) - S12-2 (RSSI)	Always	Below 1 Ω
   L63-5 (RC0) - Body ground	Always	10 kΩ or higher
   L63-15 (RDA) - Body ground	Always	10 kΩ or higher
   L63-16 (RSSI) - Body ground	Always	10 kΩ or higher
   S12-4 (+5) - Body ground	Always	10 kΩ or higher
   S12-5 (DATA) - Body ground	Always	10 kΩ or higher
   S12-2 (RSSI) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   S12-1 (GND) - Body ground	Always	Below 1 Ω

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Reconnect the certification ECU (smart key ECU assembly) connector.
2. Reconnect the door control receiver connector.
3. Measure the voltage according to the value(s) in the table below.
   Fig 3: Inspecting Door Control Receiver Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   S12-4 (+5) - S12-1 (GND)	Power switch off Lock or unlock switch on key not pushed	Below 1 V
   S12-4 (+5) - S12-1 (GND)	Power switch off Lock or unlock switch on key pushed	4.5 to 5.5 V

   TEXT IN ILLUSTRATION
   
   

   *a	Component with harness connected (Door Control Receiver)

NG → See step   16 

OK: Go to next step 

1. Measure the voltage according to the value(s) in the table below.
   Fig 4: Inspecting Door Control Receiver Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   S12-2 (RSSI) - S12-1 (GND)	Power switch off All doors locked Lock or unlock switch on key not pushed	11 to 14 V
   S12-2 (RSSI) - S12-1 (GND)	Power switch off All doors locked Lock or unlock switch on key pushed	Below 2 V
   S12-5 (DATA) - S12-1 (GND)	Power switch off All doors locked Lock or unlock switch on key pushed	Pulse between 11 to 14 V occurs regularly

   TEXT IN ILLUSTRATION
   
   

   *a	Component with harness connected (Door Control Receiver)

NG → See step   14 

OK → See step   16