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

CHECK POWER DOOR LOCK OPERATION
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 13

OK: Go to next step

READ VALUE USING TECHSTREAM (DOOR OUTSIDE HANDLE)

Connect the Techstream to the DLC3.
Turn the engine switch on (IG).
Turn the Techstream on.
Enter the following menus: Body Electrical / Smart Access / Data List.

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	-

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

NG → See step 15

OK: Go to next step

CHECK WAVE ENVIRONMENT
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
PERFORM KEY DIAGNOSTIC MODE INSPECTION
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 14

CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - DOOR ELECTRICAL KEY OSCILLATOR)

Disconnect the certification ECU (smart key ECU assembly) connector.
Disconnect the door electrical key oscillator (for driver side) connector.

Fig 3: M20, o2 & P33 Connector Terminal Identification
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

Standard Resistance

BEFORE MAY 2012 PRODUCTION

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

FROM MAY 2012 PRODUCTION

Tester Connection	Condition	Specified Condition
P33-5 (SEL1) - M20-4 (SEL)	Always	Below 1 Ω
P33-33 (CLG1) - M20-10 (CLG)	Always	Below 1 Ω
P33-34 (CG1B) - M20-5 (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))
*3	Before May 2012 Production
*4	From May 2012 Production

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step

CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - FRONT DOOR OUTSIDE HANDLE)

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

Fig 4: M20, M21, o1 & o2 Connector Terminal Identification
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

Standard Resistance

BEFORE MAY 2012 PRODUCTION

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

FROM MAY 2012 PRODUCTION

Tester Connection	Condition	Specified Condition
M21-2 (ANT2) - M20-8 (ANT2)	Always	Below 1 Ω
M21-5 (ANT1) - M20-3 (ANT1)	Always	Below 1 Ω
M21-2 (ANT2) - Body ground	Always	10 kΩ or higher
M21-5 (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))
*3	Before May 2012 Production
*4	From May 2012 Production

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step

INSPECT FUSE (MPX-B)

Remove the MPX-B fuse from the No. 1 engine room junction block.

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

CHECK HARNESS AND CONNECTOR (DOOR ELECTRICAL KEY OSCILLATOR - BATTERY AND BODY GROUND)

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

Fig 5: M20 & o2 Connector Terminal Identification

STANDARD VOLTAGE - BEFORE MAY 2012 PRODUCTION

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

STANDARD VOLTAGE - FROM MAY 2012 PRODUCTION

Tester Connection	Condition	Specified Condition
M20-1 (B) - M20-7 (GND)	Always	11 to 14 V

TEXT IN ILLUSTRATION

*1	Front view of wire harness connector (to Door Electrical Key Oscillator (for Driver Side))
*2	Before May 2012 Production
*3	From May 2012 Production

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step

REPLACE DOOR ELECTRICAL KEY OSCILLATOR (for Driver Side)
1. Replace the door electrical key oscillator (for driver side). Refer to REMOVAL .
NEXT: Go to next step
CHECK DOOR ELECTRICAL KEY OSCILLATOR (DRIVER SIDE OPERATION)
1. Check that the entry functions operate normally. Refer to OPERATION CHECK .
  OK
  
  Entry functions operate normally.
NG → See step 11

OK → END (DOOR ELECTRICAL KEY OSCILLATOR WAS DEFECTIVE)
REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (for Driver Side)
1. Replace the front door outside handle assembly (for driver side). Refer to REMOVAL .
NEXT: Go to next step
CHECK FRONT DOOR OUTSIDE HANDLE ASSEMBLY (DRIVER SIDE OPERATION)
1. Check that the entry functions operate normally. Refer to OPERATION CHECK .
  OK
  
  Entry functions operate normally.
NG → See step 14

OK → END (FRONT DOOR OUTSIDE HANDLE WAS DEFECTIVE)
GO TO POWER DOOR LOCK CONTROL SYSTEM. Refer to PROBLEM SYMPTOMS TABLE
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to REMOVAL
REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (for Driver Side). Refer to REMOVAL