Only Wireless Control Function is Inoperative: Procedure

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

   OK

   Locked doors unlock.

NG → See step   20 

OK: Go to next step 

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

   OK

   Key reminder warning buzzer operates normally.

NG → See step   18 

OK: Go to next step 

1. When another registered door control transmitter is used, check that the wireless function operates normally.

   Result

   Result	Proceed to
   Wireless door LOCK/UNLOCK function operates and door control transmitter that did not operate is electrical key transmitter	A
   Wireless door LOCK/UNLOCK function does not operate	B

B → See step   5 

A: Go to next step 

1. Remove the transmitter battery from the transmitter. Refer to REPLACEMENT .
2. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   Battery positive (+) - Battery negative (-)	Always	2.2 to 3.2 V

NG → See step   16 

OK → REPLACE DOOR CONTROL TRANSMITTER MODULE 

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

   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.

   OK

   Wireless functions operate normally.

NG → AFFECTED BY WAVE INTERFERENCE 

OK: Go to next step 

1. Switch to self-diagnostic mode by operating the ignition key cylinder.
   Fig 1: Identifying Interior Light Flashes

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. Make sure that the vehicle is in its initial condition. Then insert the key into the ignition key cylinder and remove it.
   2. Within 5 seconds after removing the key, insert the key into the ignition key cylinder (ignition switch off). Then turn the ignition switch to ON and off.
   3. Within 30 seconds after turning the ignition switch off, perform the following operation 9 times: turn the ignition switch to ON and then off.
      NOTE:

      If the system cannot enter self-diagnostic mode, the system returns to normal mode.

      HINT: 

      • Turning the ignition switch to ON after the above operations have been completed ends self-diagnostic mode.
      • Do not lock or unlock doors during self-diagnostic mode.
2. Check that the system has switched to self-diagnostic mode by checking the interior light flash pattern.

NEXT: Go to next step 

Fig 2: Interior Light Output Blinking Pattern

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Inspect the diagnosis outputs when the door control transmitter switch is held down. The diagnosis outputs can be checked by the flash patterns of the room light.

   Result

   Result	Proceed to
   Normal wave (light flash pattern) is output	A
   Mismatched recognition code is output	B
   No DTC outputs	C

B → See step   8 

C → See step   9 

A → REPLACE MAIN BODY ECU 

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 .

   OK

   Recognition code can be registered.

NG → See step   13 

OK → See step   17 

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

   OK

   Mismatched recognition code is output.

NG → See step   10 

OK → REPLACE DOOR CONTROL TRANSMITTER MODULE 

1. Disconnect the door control receiver.
   Fig 3: Checking Harness And M13 Connector (+B, GND)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   M13-1 (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
   M13-5 (+B) - Body ground	Always	11 to 14 V

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Measure the voltage according to the value(s) in the table below.
   Fig 4: Checking M13 Door Control Receiver (Output)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   M13-2 (RDA) - Body ground	Transmitter switch OFF → ON (No key in ignition key cylinder, all doors closed)	11 to 14 V → Pulse generation

NG → See step   19 

OK: Go to next step 

1. Disconnect the E63 main body ECU connector and the M13 door control receiver connector.
   Fig 5: Checking Harness And E63 & M13 Connectors (Main Body ECU - Door Control Receiver)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   E63-16 (RDA) - M13-2 (RDA)	Always	Below 1 Ω
   E63-16 (RDA) - Body ground	Always	10 kΩ or higher
   E63-17 (PRG) - M13-3 (PRG)	Always	Below 1 Ω
   E63-17 (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 lock control receiver with a new or known good one. Refer to REMOVAL .

NEXT: Go to next step 

1. Perform Registration. Refer to REGISTRATION .

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 using the transmitter.

NG → REPLACE MAIN BODY ECU 

OK → END (DOOR CONTROL RECEIVER IS DEFECTIVE)