Inspection Procedure

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

   OK: Locked doors unlock. 

NG: GO TO POWER DOOR LOCK CONTROL SYSTEM  (See PROBLEM SYMPTOMS TABLE )

OK: Go to next Step 

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 / Smart Access / Data List
5. Read the Data List according to the display on the Techstream

   Smart Access (Certification ECU (Smart Key ECU Assembly)) 

   NORMAL CONDITION CHART
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   P Touch Sensor	Front passenger side door touch sensor / ON or OFF	ON Touch sensor is touched OFF Touch sensor is not touched	-
   P Trigger SW	Front passenger side door lock switch / ON or OFF	ON Entry lock switch is pressed OFF Entry lock switch is not pressed	-

   OK: On the Techstream screen, the display changes between ON and OFF according to the chart above. 

NG: REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FRONT PASSENGER SIDE)  (See REMOVAL  )

OK: Go to next Step 

1. Bring the electrical key transmitter near the front door outside handle assembly (front passenger side), and perform a front passenger door entry lock and unlock operation check
   NOTE: If the key is brought within 0.2 m (0.656 ft.) of the door outside handle assembly, communication is not possible.
   Fig 1: Identifying Front Passenger Door Entry Lock Clearance

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   HINT

   • When the electrical key transmitter is brought near the front door outside handle assembly (front passenger side), 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: Entry functions operate normally. 

NG: Go to step 4 

OK: AFFECTED BY WAVE INTERFERENCE 

1. Diagnostic mode inspection (door electrical key oscillator (front passenger side))
   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 / Smart Access / Utility / Communication Check (Key Diag Mode) / Overhead + Passenger Side
   5. When the electrical key transmitter is in the position shown in the illustration, check that the wireless door lock buzzer sounds.

      HINT

      If the buzzer sounds, it can be determined that the door electrical key oscillator (front passenger) is operating normally

      Fig 2: Identifying Door Electrical Key Oscillator Clearance (Front Passenger Side Side)

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Wireless door lock buzzer sounds. 

NG: Go to step 5 

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

1. Disconnect the certification ECU (smart key ECU assembly) connector.
2. Disconnect the door electrical key oscillator (front passenger side) connector.
3. Measure the resistance according to the value (s) in the table below

   Standard Resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Condition	Specified Condition
   P33-6 (SEL2) - n2-4 (SEL)	Always	Below 1 Ω
   P33-36 (CG2B) - n2-5 (CLGB)	Always	Below 1 Ω
   P33-6 (SEL2) - Body ground	Always	10 kΩ or higher
   P33-36 (CG2B) - Body ground	Always	10 kΩ or higher

Fig 3: Identifying P33 And n2 Connector Terminal
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next Step 

1. Disconnect the front door outside handle assembly (front passenger side) connector
2. Measure the resistance according to the value (s) in the table below.

   Standard Resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Condition	Specified Condition
   n1-2 (ANT2) - n2-8 (ANT2)	Always	Below 1 Ω
   n1-5 (ANT1) - n2-3 (ANT1)	Always	Below 1 Ω
   n1-2 (ANT2) - Body ground	Always	10 kΩ or higher
   n1-5 (ANT1) - Body ground	Always	10 kΩ or higher

Fig 4: Identifying Front Door Outside Handle Assembly Connector Terminal
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next Step 

1. Remove the MPX-B fuse from the No 1 engine room junction block
2. Measure the resistance according to the value (s) in the table below

   Standard Resistance 

   RESISTANCE REFERENCE
   
   

   Tester Connection	Condition	Specified Condition
   MPX-B fuse	Always	Below 1 Ω

NG: REPLACE FUSE (MPX-B) 

OK: Go to next Step 

1. Measure the voltage according to the value (s) in the table below

   Standard Voltage 

   VOLTAGE SPECIFICATION
   
   

   Tester Connection	Condition	Specified Condition
   n2-1 (+B) - n2-7 (GND)	Always	11 to 14 V

Fig 5: Identifying n2 Connector Terminal
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next Step 

1. Replace the door electrical key oscillator (front passenger side) (See REMOVAL  )

1. Check that the entry functions operate normally (See OPERATION CHECK  )

   OK: Entry functions operate normally. 

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

OK: END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE)