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 locked doors unlock. Refer to OPERATION CHECK [08/2012 - ] .

   OK

   Locked doors unlock.

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 is touched OFF: Touch sensor is not touched	-
   D-Door Trigger SW	Driver 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 → See step   13 

OK: Go to next step 

1. Bring the electrical key transmitter near the front door outside handle assembly (driver side), and perform a driver door entry lock and unlock operation check.

   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 the electrical key transmitter is brought near the front door outside handle assembly (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 (driver side))

   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 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 (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 (driver side) connector.

   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
   P33-34 (CG1B) - o2-5 (CLGB)	Always	Below 1 Ω
   P33-5 (SEL1) - Body ground	Always	10 kΩ or higher
   P33-34 (CG1B) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the front door outside handle assembly (driver side) connector.

   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

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.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Voltage

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

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Replace the door electrical key oscillator (driver side). Refer to REMOVAL [08/2012 - ] .

NEXT: Go to next step 

1. Check that the entry functions operate normally. Refer to OPERATION CHECK [08/2012 - ] .

   OK

   Entry functions operate normally.

NG → See step   12 

OK → END (DOOR ELECTRICAL KEY OSCILLATOR IS DEFECTIVE)