Room Oscillator does not Recognize Key: Procedure

1. Temporarily replace the door control transmitter with a new or normally functioning one. Refer to REMOVAL .
2. Check that the wireless door lock and unlock functions operate normally.

   OK

   Wireless door lock and unlock functions operate normally.

NG → END (DOOR CONTROL TRANSMITTER IS DEFECTIVE) 

OK: Go to next step 

1. Select the Active Test, use the Techstream to generate a control command, and then check that the indoor electrical key oscillator (front, rear) operates.
   SMART KEY
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   Fr-Seat Inside Transmitter	Indoor electrical key oscillator (front)	ON or OFF	-
   Inside Trunk/Backdoor Transmitter	Indoor electrical key oscillator (rear)	ON or OFF	-

   OK

   When key is brought close to indoor electrical key oscillator, oscillator is turned OFF and indicator on key illuminates.

NG → See step   3 

OK → See step   5 

Fig 1: Identifying Indoor Electrical Key Oscillator And Certification ECU Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the L25*1 and K25*2 oscillator connectors.
2. Disconnect the E84 ECU connector.
3. Measure the resistance of the wire harness side connectors.

   HINT: 

   *1: for Front

   *2: for Rear

   Standard resistance

   for Front 

   for Rear 

   Tester Connection	Specified Condition
   L25-1 (CLG3) - E84-11 (CLG5)	Below 1 Ω
   L25-3 (CLGB) - E84-12 (CG5B)
   L25-1 (CLG3) or E84-11 (CLG5) - Body ground	10 kΩ or higher
   L25-3 (CLGB) or E84-12 (CG5B) - Body ground

   Tester Connection	Specified Condition
   K25-1 (CLG6) - E84-15 (CLG7)	Below 1 Ω
   K25-3 (CLGB) - E84-16 (CG7B)
   K25-1 (CLG6) or E84-15 (CLG7) - Body ground	10 kΩ or higher
   K25-3 (CLGB) or E84-16 (CG7B) - Body ground

NG → REPAIR OR REPLACE HARNESS AND CONNECTOR 

OK: Go to next step 

1. Carry the key into the vehicle.
2. Temporarily replace the indoor electrical key oscillator with a new or normally functioning one.
3. Depress the brake pedal and check that the engine switch indicator illuminates in green.

   OK

   Engine switch indicator illuminates in green.

NG → See step   5 

OK → END (INDOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE)