Inspection Procedure

1. Check that the entry luggage compartment open function operates

   Result 

   RESULT REFERENCE
   
   

   Result	Proceed to
   Entry luggage compartment door open function does not operate	A
   Entry luggage compartment door open function operates	B

A: GO TO OTHER PROBLEM  (See LUGGAGE COMPARTMENT DOOR ENTRY UNLOCK FUNCTION DOES NOT OPERATE WHEN KEY IS OUTSIDE LUGGAGE COMPARTMENT  )

B: Go to next Step 

1. Bring the electrical key transmitter near the indoor electrical key oscillator (luggage compartment), and check that the entry luggage compartment lock-in prevention function operates
   NOTE: If the key is brought within 0.2 m (0.656 ft.) of the indoor electrical key oscillator (luggage compartment), communication is not possible.

   HINT

   • When the electrical key transmitter is brought near the indoor electrical key oscillator (luggage compartment), the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom
   • If 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: Entry functions operate normally. 

NG: Go to step 3 

OK: AFFECTED BY WAVE INTERFERENCE 

1. Diagnostic mode inspection (indoor electrical key oscillator (luggage compartment))
   1. Connect the Techstream to the DLC3
   2. Turn the engine switch on (IG)
   3. Turn the Techstream on
   4. Enter the following menus Body Electrical / Utility / Smart Access / Communication Check (Key Diag mode) / Overhead + Luggage (inside)
   5. When the electrical key transmitter is held at the same height as the rear bumper upper surface and aligned with the center of the rear of the vehicle, check that the wireless door lock buzzer sounds

      HINT

      If the buzzer sounds, it can be determined that the luggage compartment interior transmitter is operating normally

      Fig 1: Inspecting Key Lock-In Prevention Detection

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Wireless door lock buzzer sounds. 

NG: Go to step 4 

OK: REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)  (See REMOVAL  )

1. Disconnect the certification ECU (smart key ECU assembly) connector
2. Disconnect the indoor electrical key oscillator (luggage compartment) connector
3. Measure the resistance according to the value (s) in the table below.

   Standard Resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Condition	Specified Condition
   P33-16 (CG7B) - Q48-3 (CLGB)	Always	Below 1 Ω
   P33-15 (CLG7) - Q48-1 (CLG6)	Always	Below 1 Ω
   P33-16 (CG7B) - Body ground	Always	10 kΩ or higher
   P33-15 (CLG7) - Body ground	Always	10 kΩ or higher

Fig 2: Identifying P33 And Q48 Connector Terminal
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Condition	Specified Condition
   P33-37 (ASEL) - P31-4 (ASEL)	Always	Below 1 Ω
   P33-37 (ASEL) - Body ground	Always	10 kΩ or higher

Fig 3: Identifying P33 And P31 Connector Terminal
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next Step 

1. Disconnect the electrical key antenna connector
2. Measure the resistance according to the value (s) in the table below

   Standard Resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Condition	Specified Condition
   P31-7 (ANT) - P20-1 (ANT)	Always	Below 1 Ω
   P31-7 (ANT) - Body ground	Always	10 kΩ or higher

Fig 4: Identifying P31 And P20 Connector Terminal
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next Step 

1. Replace the indoor electrical key oscillator (luggage compartment) (See REMOVAL  )

1. Check that the entry function operates normally (See OPERATION CHECK  ).

   OK: Entry function operates normally. 

NG: Go to step 9 

OK: END (INDOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE) 

1. Replace the electrical key antenna (See REMOVAL )

1. Check that the entry function operates normally (See OPERATION CHECK  )

   OK: Entry function operates normally. 

NG: REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)  (See REMOVAL  )

OK: END (ELECTRICAL KEY ANTENNA IS DEFECTIVE)