Room Oscillator does not Recognize Key: Procedure

1. Check that the entry lock and unlock functions operate for each door. Refer to OPERATION CHECK .

   HINT: 

   If the door control and tire pressure monitoring system receiver assembly is defective, code verification does not begin in the cabin and the entry functions do not operate.

   OK

   All door entry lock and unlock functions operate normally.

NG → See step   15 

OK: Go to next step 

1. Remove the transmitter battery of the electrical key transmitter sub-assembly. Refer to REPLACEMENT .
   Fig 1: Checking Push Start Function

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. With the brake pedal depressed, face the logo side of the electrical key transmitter sub-assembly towards the engine switch, hold the transmitter near the engine switch and then press the engine switch.
3. When operating the engine switch, check whether the engine starts.

   HINT: 

   • When the electrical key transmitter sub-assembly cannot be verified even though it is inside the detection area, the engine start check can be performed by removing the transmitter battery from the electrical key transmitter sub-assembly and holding the electrical key transmitter sub-assembly near the engine switch.
   • If the engine cannot be started when performing this inspection, the certification ECU (smart key ECU assembly) or steering lock ECU (steering lock actuator assembly) may be malfunctioning.

   OK

   Engine starts.

   TEXT IN ILLUSTRATION
   
   

   *1	Engine Switch
   *2	Electrical Key Transmitter Sub-assembly

NG → See step   14 

OK: Go to next step 

1. Install the transmitter battery to the electrical key transmitter sub-assembly. Refer to REPLACEMENT .
2. Bring the electrical key transmitter sub-assembly near the NO. 1 indoor electrical key antenna assembly (front floor) and perform a smart key system check. Refer to OPERATION CHECK .
   NOTE:

   Communication may not be possible if the electrical key transmitter sub-assembly is within 0.2 m (0.656 ft.) of the shift lever.

3. Bring the electrical key transmitter sub-assembly near the NO. 2 indoor electrical key antenna assembly (rear floor) and perform a smart key system check. Refer to OPERATION CHECK

   HINT: 

   Check that the customize status of the "Ignition Available Area" has been "All".

   NOTE:

   Communication may not be possible if the electrical key transmitter sub-assembly is within 0.2 m (0.656 ft.) of the center of the rear seat cushion.

   HINT: 

   • As the effect of wave interference decreases by moving the electrical key transmitter sub-assembly close to each indoor electrical key antenna assembly, it may be possible to check whether wave interference is the cause of the problem.
   • If the inspection result is that the problem only occurs in certain locations or at certain 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.
   • There may be wave interference if the vehicle is near broadcasting antennas, large video displays, wireless garage door opener systems, wireless security cameras, home security systems, etc. In this case, move the vehicle to a different location and check if there is any improvement.
   • If a tool for checking radio waves, such as a signal strength meter, is available, move around the area while observing both the LF band (used by the vehicle antenna to form the detection area) and RF band (used by the electrical key transmitter sub-assembly for transmission) to check for locations where there is wave interference.

   Result

   Result	Proceed to
   System cannot be operated	A
   System can be operated	B

B → AFFECTED BY WAVE INTERFERENCE 

A: Go to next step 

1. Check the following antennas in key diagnostic mode. Refer to PARTS LOCATION .
2. Select either channel 1 or channel 2 and inspect key diagnostic mode for each channel.

   HINT: 

   If the buzzer sounds with [CH1] displayed but not with [CH2], the electrical key transmitter sub-assembly cannot be detected by channel 2 due to a malfunction, such as wave interference.

   1. Check the NO. 1 indoor electrical key antenna assembly (front floor).
      Fig 2: Identifying Smart Key Inspection Points

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION
      
      

      *a	Inspection Point

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

   2. Check the NO. 2 indoor electrical key antenna assembly (rear floor).
      Fig 3: Identifying Smart Key Inspection Points

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION
      
      

      *a	Inspection Point

      When the electrical key transmitter sub-assembly 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 assembly (front floor or rear floor) is operating by the sounding of the buzzer.
      • If the buzzer does not sound for any indoor electrical key antenna assemblies, the certification ECU (smart key ECU assembly) circuit may be malfunctioning.

      OK

      Wireless door lock buzzer sounds.

      Result

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

B → See step   9 

C → See step   13 

A: Go to next step 

1. Disconnect the D34 NO. 1 indoor electrical key antenna assembly (front floor) connector.
2. Disconnect the D64 certification ECU (smart key ECU assembly) connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   D34-1 (ANTE5) - D64-3 (CLG5)	Always	Below 1 Ω
   D34-3 (CLGB) - D64-2 (CG5B)	Always	Below 1 Ω
   D34-1 (ANTE5) or D64-3 (CLG5) - Body ground	Always	10 kΩ or higher
   D34-3 (CLGB) or D64-2 (CG5B) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the D34 NO. 1 indoor electrical key antenna assembly (front floor) connector.
   Fig 4: Checking Certification ECU And Waveform

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Connect the D64 certification ECU (smart key ECU assembly) connector.
3. Using an oscilloscope, check the waveform.

   OK

   Tester Connection	Condition	Tool Setting	Specified Condition
   D34-1 (ANTE5) - D34-3 (CLGB)	Procedure: Engine switch off Electrical key transmitter sub-assembly not inside vehicle Door is open Door is closed Within 30 seconds	2 V/DIV., 500 ms/DIV.	Pulse generation (See waveform)

   TEXT IN ILLUSTRATION
   
   

   *1	Waveform
   *a	Front view of wire harness connector (to NO. 1 Indoor Electrical Key Antenna Assembly (Front Floor))
   *b	Within approximately 30 seconds from when the door is closed
   *c	After approximately 30 seconds from when the door is closed

NG → See step   16 

OK: Go to next step 

1. Temporarily replace the NO. 1 indoor electrical key antenna assembly (front floor) with a new or known good one. Refer to REMOVAL .

NEXT: Go to next step 

1. Check the following antenna in key diagnostic mode. Refer to OPERATION CHECK .
2. Select either channel 1 or channel 2 and inspect key diagnostic mode for each channel.

   HINT: 

   If the buzzer sounds with [CH1] displayed but not with [CH2], the electrical key transmitter sub-assembly cannot be detected by channel 2 due to a malfunction, such as wave interference.

   1. Check the NO. 1 indoor electrical key antenna assembly (front floor).
      Fig 5: Identifying Smart Key Inspection Points

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

      OK

      Wireless door lock buzzer sounds.

      TEXT IN ILLUSTRATION
      
      

      *a	Inspection Point

NG → See step   17 

OK → END (NO. 1 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (FRONT FLOOR) WAS DEFECTIVE) 

1. Disconnect the J8 NO. 2 indoor electrical key antenna assembly (rear floor) connector.
2. Disconnect the D65 certification ECU (smart key ECU assembly) connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   J8-1 (ANTE6) - D65-11 (CLG6)	Always	Below 1 Ω
   J8-3 (CLGB) - D65-10 (CG6B)	Always	Below 1 Ω
   J8-1 (ANTE6) or D65-11 (CLG6) - Body ground	Always	10 kΩ or higher
   J8-3 (CLGB) or D65-10 (CG6B) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the J8 NO. 2 indoor electrical key antenna assembly (rear floor) connector.
   Fig 6: Checking Certification ECU (smart Key ECU Assembly) And Waveform

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Connect the D65 certification ECU (smart key ECU assembly) connector.
3. Using an oscilloscope, check the waveform.

   OK

   Tester Connection	Condition	Tool Setting	Specified Condition
   J8-1 (ANTE6) - J8-3 (CLGB)	Procedure: Engine switch off Electrical key transmitter sub-assembly not inside vehicle Door is open Door is closed Within 30 seconds	2 V/DIV., 500 ms/DIV.	Pulse generation (See waveform)

   TEXT IN ILLUSTRATION
   
   

   *1	Waveform
   *a	Front view of wire harness connector (to NO. 2 Indoor Electrical Key Antenna Assembly (Rear Floor))
   *b	Within approximately 30 seconds from when the door is closed
   *c	After approximately 30 seconds from when the door is closed

NG → See step   18 

OK: Go to next step 

1. Temporarily replace the NO. 2 indoor electrical key antenna assembly (rear floor) with a new or known good one. Refer to REMOVAL .

NEXT: Go to next step 

1. Check the following antenna in key diagnostic mode. Refer to OPERATION CHECK .
2. Select either channel 1 or channel 2 and inspect key diagnostic mode for each channel.

   HINT: 

   If the buzzer sounds with [CH1] displayed but not with [CH2], the electrical key transmitter sub-assembly cannot be detected by channel 2 due to a malfunction, such as wave interference.

   1. Check the NO. 2 indoor electrical key antenna assembly (rear floor).
      Fig 7: Identifying Smart Key Inspection Points

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

      OK

      Wireless door lock buzzer sounds.

      TEXT IN ILLUSTRATION
      
      

      *a	Inspection Point

NG → See step   19 

OK → END (NO. 2 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (REAR FLOOR) WAS DEFECTIVE)