Driver Side Door Entry Lock and Unlock Functions do not Operate: Procedure

1. When the door control switch on the master switch assembly is operated, check that the doors unlock and lock according to switch operation. Refer to OPERATION CHECK .

   OK

   Door locks operate normally.

NG → See step   11 

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))
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   D-Door Touch Sensor	Driver side door touch sensor / ON or OFF	ON: Touch sensor touched OFF: Touch sensor not touched	-
   D-Door Trigger SW	Driver side door lock switch / ON or OFF	ON: Entry lock switch pressed OFF: Entry lock switch not pressed	-

   OK

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

NG → See step   13 

OK: Go to next step 

1. Bring the key near the front door outside handle assembly (for driver side), and perform a driver door entry lock and unlock operation check.
   Fig 1: Checking The Entry Lock Function

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   NOTE:

   If the key is brought within 0.2 m (0.656 ft.) of the door outside handle assembly, communication is not possible.

   HINT: 

   • When pressing the lock switch and touching the touch sensor, hold the key about 1 m (3.28 ft.) above the ground and about 0.3 m (0.984 ft.) away from the vehicle as shown in the illustration.
   • When the key is brought near the front door outside handle assembly (for driver side), 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 → See step   4 

OK → AFFECTED BY WAVE INTERFERENCE 

1. Diagnostic mode inspection (door electrical key oscillator (for driver side))
   Fig 2: Identifying Unlock Standby Mode

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   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 + Driver Side.
   5. When the key is in the position shown in the illustration, check that the wireless door lock buzzer sounds.

      HINT: 

      • Hold the key at the same height as the door outside handle (0.7 to 1.0 m (2.30 to 3.28 ft.)). Make sure that the direction of the key is as shown in the illustration.
      • If the buzzer sounds, it can be determined that the door electrical key oscillator (for driver side) is operating normally.

      OK

      Wireless door lock buzzer sounds.

NG → See step   5 

OK → See step   12 

1. Disconnect the certification ECU (smart key ECU assembly) connector.
2. Disconnect the door electrical key oscillator (for driver side) connector.
   Fig 3: Identifying Ertification ECU (Smart Key Ecu Assembly) & Door Electrical Key Oscillator (For Driver Side) Connectors

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   P33-5 (SEL1) - o2-4 (SEL)	Always	Below 1 Ω
   P33-33 (CLG1) - o2-10 (CLG)	Always	Below 1 Ω
   P33-34 (CG1B) - o2-5 (CLGB)	Always	Below 1 Ω
   P33-5 (SEL1) - Body ground	Always	10 kΩ or higher
   P33-33 (CLG1) - Body ground	Always	10 kΩ or higher
   P33-34 (CG1B) - Body ground	Always	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *1	Front view of wire harness connector (to Certification ECU (Smart Key ECU Assembly))
   *2	Front view of wire harness connector (to Door Electrical Key Oscillator (for Driver Side))

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the front door outside handle assembly (for driver side) connector.
   Fig 4: Identifying Check Harness And Connector (Door Electrical Key Oscillator - Front Door Connectors

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   o1-2 (ANT2) - o2-8 (ANT2)	Always	Below 1 Ω
   o1-5 (ANT1) - o2-3 (ANT1)	Always	Below 1 Ω
   o1-2 (ANT2) - Body ground	Always	10 kΩ or higher
   o1-5 (ANT1) - Body ground	Always	10 kΩ or higher

   TEXT IN ILLUSTRATION
   
   

   *1	Front view of wire harness connector (to Front Door Outside Handle Assembly (for Driver Side))
   *2	Front view of wire harness connector (to Door Electrical Key Oscillator (for Driver Side))

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

   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.
   Fig 5: Identifying O2 Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   o2-1 (B) - o2-7 (GND)	Always	11 to 14 V

   TEXT IN ILLUSTRATION
   
   

   *1	Front view of wire harness connector (to Door Electrical Key Oscillator (for Driver Side))

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Replace the door electrical key oscillator (for driver side). Refer to REMOVAL .

NEXT: Go to next step 

1. Check that the entry functions operate normally. Refer to OPERATION CHECK .

   OK

   Entry functions operate normally.

NG → See step   14 

OK → END (DOOR ELECTRICAL KEY OSCILLATOR WAS DEFECTIVE) 

1. Replace the front door outside handle assembly (for driver side). Refer to REMOVAL .

NEXT: Go to next step 

1. Check that the entry functions operate normally. Refer to OPERATION CHECK .

   OK

   Entry functions operate normally.

NG → See step   12 

OK → END (FRONT DOOR OUTSIDE HANDLE WAS DEFECTIVE)