Room Oscillator does not Recognize Key: Procedure

1. Remove the battery of the electrical key transmitter. Refer to REPLACEMENT .
   Fig 1: Identifying Smart Key System (Start Function)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. With the brake pedal depressed, touch the TOYOTA mark of the key to the engine switch.
3. When operating the engine switch, check whether the power source mode changes.

   HINT: 

   • When the electrical key transmitter cannot be verified even though it is in the operating range of the start function, the engine start check can be performed by removing the transmitter battery from the electrical key transmitter and holding the transmitter against the engine switch.
   • When performing the check, if the power source mode changes, there is a problem with key certification inside the cabin.

   OK

   Power source mode changes.

   TEXT IN ILLUSTRATION
   
   

   *1	Engine Switch
   *2	Electrical Key Transmitter

NG → GO TO SMART KEY SYSTEM (FOR START FUNCTION) 

OK: Go to next step 

1. Install the battery to the electrical key transmitter. Refer to REPLACEMENT .
2. Move the electrical key transmitter as described below and perform the operation inspection. Refer to OPERATION CHECK .
   1. Bring the electrical key transmitter near the indoor No. 1 electrical key antenna (front floor) and perform an engine control system start check.
      NOTE:

      If the key is brought within 0.2 m (0.656 ft.) of the indoor No. 1 electrical key antenna (front floor), communication is not possible.

   2. Bring the electrical key transmitter near the indoor No. 2 electrical key antenna (rear floor) and perform an engine control system start check.
      NOTE:

      If the key is brought within 0.2 m (0.656 ft.) of the indoor No. 2 electrical key antenna (rear floor), communication is not possible.

   3. Bring the electrical key transmitter near the indoor No. 2 electrical key antenna (inside luggage) and perform an engine control system start check.
      NOTE:

      If the key is brought within 0.2 m (0.656 ft.) of the indoor No. 2 electrical key antenna (rear floor), communication is not possible.

      HINT: 

      • When the electrical key transmitter is brought near the indoor electrical key antenna, 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 operation check is normal, 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

      Engine can be started.

NG → See step   3 

OK → AFFECTED BY WAVE INTERFERENCE 

1. Check the following antennas in the key diagnostic mode. Refer to SYSTEM DESCRIPTION .
   1. Check the indoor No. 1 electrical key antenna (front floor).

      When the electrical key transmitter is at the inspection point, check that the wireless door lock buzzer sounds.

   2. Check the indoor No. 2 electrical key antenna (rear floor).

      When the electrical key transmitter is at the inspection point, check that the wireless door lock buzzer sounds.

   3. Check the indoor No. 2 electrical key antenna (inside luggage).

      When the electrical key transmitter is at the inspection point, check that the wireless door lock buzzer sounds.

      HINT: 

      • If the buzzer sounds, it can be determined that the vehicle interior transmitters are operating normally.
      • It is possible to check which indoor electrical key antenna (front floor, rear floor or inside luggage) is operating by the sounding of the buzzer.
      • If the buzzer does not sound for any indoor electrical key antennas, the certification ECU circuit may have a malfunction.

      OK

      Wireless door lock buzzer sounds.

      RESULT
      
      

      Result	Proceed to
      Front operation check fails	A
      Rear operation check fails	B
      Luggage operation check fails	C
      Front, rear and luggage operation checks are normal	D

D → See step   16 

C → See step   12 

B → See step   8 

A: Go to next step 

1. Disconnect the F77 antenna connector.
2. Disconnect the F79 ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   F77-1 (CLG3) - F79-7 (CLG5)	Always	Below 1 Ω
   F77-3 (CLGB) - F79-8 (CG5B)	Always	Below 1 Ω
   F77-1 (CLG3) - Body ground	Always	10 kΩ or higher
   F77-3 (CLGB) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the F77 antenna connector.
   Fig 2: Identifying F77 Antenna Connector

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

   OK

   Tester Connection	Switch Condition	Specified Condition
   F77-1 (CLG3) - F77-3 (CLGB)	Engine switch off, all doors closed, key not in cabin and lock sensor off → on	No pulse generation → pulse generation

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Indoor No. 1 Electrical Key Antenna [Front Floor])

NG → See step   16 

OK: Go to next step 

1. Temporarily replace the indoor No. 1 electrical key antenna (front floor) with a new or normally functioning one. Refer to REMOVAL .

NEXT: Go to next step 

1. Check the following antenna in the key diagnostic mode. Refer to SYSTEM DESCRIPTION .
   1. Check the indoor No. 1 electrical key antenna (front floor).

      When the electrical key transmitter is at the inspection point, check that the wireless door lock buzzer sounds.

      OK

      Wireless door lock buzzer sounds.

NG → See step   16 

OK → END (INDOOR NO. 1 ELECTRICAL KEY ANTENNA ASSEMBLY IS DEFECTIVE) 

1. Disconnect the O9 antenna connector.
2. Disconnect the F79 ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   O9-1 (CLG4) - F79-24 (CLG6)	Always	Below 1 Ω
   O9-2 (CLGB) - F79-25 (CG6B)	Always	Below 1 Ω
   O9-1 (CLG4) - Body ground	Always	10 kΩ or higher
   O9-2 (CLGB) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the O9 antenna connector.
   Fig 3: Identifying O9 Antenna Connector

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

   OK

   Tester Connection	Switch Condition	Specified Condition
   O9-1 (CLG4) - O9-2 (CLGB)	Engine switch off, all doors closed, key not in cabin and lock sensor off → on	No pulse generation → pulse generation

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Indoor No. 2 Electrical Key Antenna [Rear Floor])

NG → See step   16 

OK: Go to next step 

1. Temporarily replace the indoor No. 2 electrical key antenna (rear floor) with a new or normally functioning one. Refer to REMOVAL .

NEXT: Go to next step 

1. Check the following antenna in the key diagnostic mode. Refer to SYSTEM DESCRIPTION .
   1. Check the indoor No. 2 electrical key antenna (rear floor).

      When the electrical key transmitter is at the inspection point, check that the wireless door lock buzzer sounds.

      OK

      Wireless door lock buzzer sounds.

NG → See step   16 

OK → END (INDOOR NO. 2 ELECTRICAL KEY ANTENNA ASSEMBLY IS DEFECTIVE) 

1. Disconnect the O14 antenna connector.
2. Disconnect the F79 ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   O14-1 (CLG6) - F79-26 (CLG7)	Always	Below 1 Ω
   O14-2 (CLGB) - F79-27 (CG7B)	Always	Below 1 Ω
   O14-1 (CLG6) - Body ground	Always	10 kΩ or higher
   O14-2 (CLGB) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the O14 antenna connector.
   Fig 4: Identifying O14 Antenna Connector

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

   OK

   Tester Connection	Switch Condition	Specified Condition
   O14-1 (CLG6) - O14-2 (CLGB)	Engine switch off, all doors closed, key not in cabin and lock sensor off → on	No pulse generation → pulse generation

   TEXT IN ILLUSTRATION
   
   

   *a	Front view of wire harness connector (to Indoor No. 2 Electrical Key Antenna [Inside Luggage])

NG → See step   16 

OK: Go to next step 

1. Temporarily replace the indoor No. 2 electrical key antenna (inside luggage) with a new or normally functioning one. Refer to REMOVAL .

NEXT: Go to next step 

1. Check the following antenna in the key diagnostic mode. Refer to SYSTEM DESCRIPTION .
   1. Check the indoor No. 2 electrical key antenna (inside luggage).

      When the electrical key transmitter is at the inspection point, check that the wireless door lock buzzer sounds.

      OK

      Wireless door lock buzzer sounds.

NG → See step   16 

OK → END (INDOOR NO. 2 ELECTRICAL KEY ANTENNA ASSEMBLY IS DEFECTIVE)