Toyota Corolla Cross: Front Passenger Side Door Entry Lock and Unlock Functions do not Operate

Vehicle Control History (RoB)

1.

CHECK POWER DOOR LOCK CONTROL SYSTEM

GO TO POWER DOOR LOCK CONTROL SYSTEM

2.

CHECK ENTRY OPERATION

(1) Check the entry unlock function.

1. Turn the ignition switch off.
2. Open and close the front passenger door.
3. With the electrical key transmitter sub-assembly outside of the vehicle, press the lock switch of the electrical key transmitter sub-assembly to lock all of the doors.
4. Hold the electrical key transmitter sub-assembly at the same height as the door outside handle assembly and approximately 0.3 m (0.984 ft.) from the front passenger door.
5. Check that the LED of the electrical key transmitter sub-assembly blinks.
6. Touch the unlock sensor on the backside of the front door outside handle assembly RH for 2 seconds or more.*

• *: Perform this step 3 seconds or more after performing step (3).

HINT:

When checking the operation of the unlock sensor again, make sure to perform the procedure from step (1).

(2) Check the entry lock function.

1. Turn the ignition switch off.
2. Open and close the front passenger door.
3. Hold the electrical key transmitter sub-assembly at the same height as the door outside handle assembly and approximately 0.3 m (0.984 ft.) from the front passenger door.
4. Touch the lock sensor of the front door outside handle assembly (groove on the front door outside handle) with 2 or more fingers for 2 seconds or more.

   HINT:

   • If the door does not lock even when touching the lock sensor for 2 seconds or more, touch it with your palm.
   • When checking the operation of the lock sensor again, make sure to perform the procedure from step (1).

Entry function does not operate normally

A

Entry function operates normally

B

GO TO CHECK FOR INTERMITTENT PROBLEMS (VEHICLE CONTROL HISTORY (ROB))

3.

CHECK WAVE ENVIRONMENT

(a) Bring the electrical key transmitter sub-assembly approximately 0.3 m (0.984 ft.) from the front door outside handle assembly RH and perform an entry function check.

Click here

• Communication may not be possible if the electrical key transmitter sub-assembly is within 0.2 m (0.656 ft.) of the front door outside handle assembly RH.
• When the electrical key transmitter sub-assembly is brought near the front door outside handle assembly RH, 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 problem only occurs in certain locations or at certain times of day, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check.
• There may be wave interference if the vehicle is near broadcasting antennas, large video displays, wireless garage door opener systems, wireless security cameras, home security systems, etc. In this case, move the vehicle to a different location and check if there is any improvement.
• If a tool for checking radio waves, such as a signal strength meter, is available, move around the area while observing both the LF band (used by the vehicle antenna to form the detection area) and RF band (used by the electrical key transmitter sub-assembly for transmission) to check for locations where there is wave interference.
• When checking the operation of the entry lock function several times, it can be operated up to 2 times consecutively. To operate the function 3 times or more consecutively, the doors need to be unlocked once. However, this is only for the entry lock function, other door lock operations, such as a wireless door lock operation can be performed consecutively.

Entry function does not operate normally

A

Entry function operates normally

B

AFFECTED BY WAVE INTERFERENCE

4.

READ VALUE USING GTS (PASSENGER SIDE UNLOCK SENSOR)

(a) Open and close the front passenger door.

Passenger Side Unlock Sensor

Front passenger door touch sensor (unlock sensor)

OFF or ON

OFF: Front passenger door touch sensor (unlock sensor) not touched

ON: Front passenger door touch sensor (unlock sensor) touched

• Displays whether the unlock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily).
• Use this Data List item to help determine if there is an unlock sensor malfunction when the entry unlock function does not operate.

Passenger Side Unlock Sensor

GO TO STEP 6

5.

READ VALUE USING GTS (PASSENGER SIDE LOCK SENSOR)

(a) Open and close the front passenger door.

Passenger Side Lock Sensor

Front passenger door touch sensor (lock sensor)

OFF or ON

OFF: Front passenger door touch sensor (lock sensor) not touched

ON: Front passenger door touch sensor (lock sensor) touched

• Displays whether the lock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily).
• Use this Data List item to help determine if there is a lock sensor malfunction when the entry lock function does not operate.

Passenger Side Lock Sensor

The GTS display does not change correctly in response to the operation of the front door outside handle assembly RH.

A

The GTS display changes correctly in response to the operation of the front door outside handle assembly RH.

B

GO TO STEP 10

6.

CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - FRONT DOOR OUTSIDE HANDLE ASSEMBLY RH)

I222-10 (CLG2) - K19-4 (ANT1)

Always

Below 1 Ω

I222-9 (CG2B) - K19-6 (ANT2)

Always

Below 1 Ω

I222-10 (CLG2) or K19-4 (ANT1) - Other terminals and body ground

Always

10 kΩ or higher

I222-9 (CG2B) or K19-6 (ANT2) - Other terminals and body ground

Always

10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

7.

CHECK OUTPUT TO FRONT PASSENGER DOOR ELECTRICAL KEY ANTENNA

(a) Using an oscilloscope, check the waveform.

OK:

*: For details about the entry function detection area, refer to Operation Check.

Click here

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

8.

REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY RH

9.

CHECK ENTRY OPERATION

Entry function operates normally

A

Entry function does not operate normally

B

END (FRONT DOOR OUTSIDE HANDLE ASSEMBLY RH WAS DEFECTIVE)

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

10.

CHECK KEY DIAGNOSTIC MODE

Communication Check(Key Diag Mode)

(1) Check the electrical key antenna RH:

When the electrical key transmitter sub-assembly is brought within 0.7 to 1 m (2.30 to 3.28 ft.) of the front door outside handle assembly RH, check that the wireless buzzer sounds.

HINT:

• Select either channel 1 or channel 2 and perform the key diagnostic mode inspection for each channel.
• If the buzzer sounds with [CH1] displayed but not with [CH2], the electrical key transmitter sub-assembly cannot be detected by channel 2 due to a malfunction, such as wave interference.

Wireless buzzer does not sound

A

Wireless buzzer sounds

B

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

11.

CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - FRONT DOOR OUTSIDE HANDLE ASSEMBLY RH)

I222-10 (CLG2) - K19-4 (ANT1)

Always

Below 1 Ω

I222-9 (CG2B) - K19-6 (ANT2)

Always

Below 1 Ω

I222-10 (CLG2) or K19-4 (ANT1) - Other terminals and body ground

Always

10 kΩ or higher

I222-9 (CG2B) or K19-6 (ANT2) - Other terminals and body ground

Always

10 kΩ or higher

REPAIR OR REPLACE HARNESS OR CONNECTOR

12.

CHECK OUTPUT TO FRONT PASSENGER DOOR ELECTRICAL KEY ANTENNA

(a) Using an oscilloscope, check the waveform.

OK:

*: For details about the entry function detection area, refer to Operation Check.

Click here

REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

13.

CHECK ENTRY OPERATION

Entry function does not operate normally

A

Entry function operates normally

B

REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY RH

END (CONNECTOR WAS NOT CONNECTED SECURELY)