THEFT DETERRENT / KEYLESS ENTRY SMART ENTRY AND START SYSTEM(for Entry Function, HEV Model) Driver Side Door Entry Lock and Unlock Functions do not Operate
DESCRIPTION
If the entry lock and unlock functions do not operate for the driver door only, the request code may not be being transmitted from the driver door or the front door outside handle assembly LH (touch sensor) may be malfunctioning. If the entry functions for other doors operate properly, communication between the electrical key transmitter sub-assembly and door control receiver assembly is normal. In this case, there may be a problem with request code transmission (communication between the certification ECU (smart key ECU assembly) and front door outside handle assembly LH (electrical key antenna)), or there may be wave interference.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
- NOTICE:
- ·
When using the GTS with the ignition switch off, connect the GTS to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start(CAN). While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.
·The smart entry and start system (for Entry Function) uses the CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart entry and start system (for Entry Function) after confirming that the communication systems are functioning properly.
·Before replacing the certification ECU (smart key ECU assembly), refer to Service Bulletin.
·After repair, confirm that no DTCs are output.
·Check that there are no electrical key transmitter sub-assemblies in the vehicle.
- HINT:
- ·
If the driver door entry lock and unlock functions do not operate, the cause of the malfunction may be stored in the certification ECU (smart key ECU assembly).
·If the cause of the malfunction is stored in the certification ECU (smart key ECU assembly), the following table is helpful in checking whether the malfunction was caused by wave interference.
- Body Electrical > Entry&Start > Utility
-
Tester Display Vehicle Control History (RoB) - 50005 440 62
PROCEDURE
When the door control switch on the multiplex network master switch assembly is operated, check that the doors unlock and lock according to the switch operation.
- OK:
Door locks operate normally.
- Result:
Proceed to OK NG
OK
NG
Check the operation of the entry lock and unlock functions.
| *a | Unlock Sensor (Backside) |
Check that the entry unlock function.
Turn the ignition switch off.
Open and close the driver door.
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.
Hold the electrical key transmitter sub-assembly at the same height as the door outside handle assembly LH and approximately 0.3 m (0.984 ft.) from the driver door.
Check that the LED of the electrical key transmitter sub-assembly blinks.
Touch the unlock sensor on the backside of the front door outside handle assembly LH 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).
| *a | Lock Sensor |
Check that the entry lock function.
Turn the ignition switch off.
Open and close the driver door.
Hold the electrical key transmitter sub-assembly at the same height as the door outside handle assembly LH and approximately 0.3 m (0.984 ft.) from the driver door.
Touch the lock sensor of the front door outside handle assembly LH (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).
·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.
- Result:
Result Proceed to Entry function does not operate normally A Entry function operates normally B
A
B
| *1 | Electrical Key Transmitter Sub-assembly |
| *a | Approximately 0.3 m (0.984 ft.) |
Bring the electrical key transmitter sub-assembly approximately 0.3 m (0.984 ft.) from the front door outside handle assembly LH and perform an entry function check.
- HINT:
- ·
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 LH.
·When the electrical key transmitter sub-assembly is brought near the front door outside handle assembly LH, 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.
- Result:
Result Proceed to Entry function does not operate normally A Entry function operates normally B
A
B
| *a | Unlock Sensor (Backside) |
Open and close the driver door.
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.
Hold the electrical key transmitter sub-assembly at the same height as the door outside handle assembly LH and approximately 0.3 m (0.984 ft.) from the driver door.
Check that the LED of the electrical key transmitter sub-assembly blinks.
Read the Data List according to the display on the GTS.
Touch the unlock sensor on the backside of the front door outside handle assembly LH for 2 seconds or more.*
*: Perform this step 3 seconds or more after performing step (f).
- HINT:
-
When checking the operation of the unlock sensor again, make sure to perform the procedure from step (a).
- Body Electrical > Entry&Start > Data List
-
Tester Display Measurement Item Range Normal Condition Diagnostic Note Driver Side Unlock Sensor Driver door touch sensor (unlock sensor) OFF or ON OFF: Driver door touch sensor (unlock sensor) not touched
ON: Driver 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.
- Body Electrical > Entry&Start > Data List
-
Tester Display Driver Side Unlock Sensor - 50003 440 3
- OK:
The GTS display changes correctly in response to the operation of the front door outside handle assembly LH.
- Result:
Proceed to OK NG
OK
NG
| *a | Lock Sensor |
Open and close the driver door.
Hold the electrical key transmitter sub-assembly at the same height as the door outside handle assembly LH and approximately 0.3 m (0.984 ft.) from the driver door.
Read the Data List according to the display on the GTS.
Touch the lock sensor of the front door outside handle assembly LH (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 (a).
·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.
- Body Electrical > Entry&Start > Data List
-
Tester Display Measurement Item Range Normal Condition Diagnostic Note Driver Side Lock Sensor Driver door touch sensor (lock sensor) OFF or ON OFF: Driver door touch sensor (lock sensor) not touched
ON: Driver 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.
- Body Electrical > Entry&Start > Data List
-
Tester Display Driver Side Lock Sensor - 50003 440 5
- Result:
Result Proceed to The GTS display does not change correctly in response to the operation of the front door outside handle assembly LH. A The GTS display changes correctly in response to the operation of the front door outside handle assembly LH. B
A
B
Disconnect the I222 certification ECU (smart key ECU assembly) connector.
Disconnect the L19*1 or L22*2 front door outside handle assembly LH connector.
*1: w/o Digital Key System
*2: w/ Digital Key System
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
w/o Digital Key System Tester Connection Condition Specified Condition I222-16 (CLG1) - L19-4 (ANT1) Always Below 1 Ω I222-15 (CG1B) - L19-6 (ANT2) Always Below 1 Ω I222-16 (CLG1) or L19-4 (ANT1) - Other terminals and body ground Always 10 kΩ or higher I222-15 (CG1B) or L19-6 (ANT2) - Other terminals and body ground Always 10 kΩ or higher
- Standard Resistance:
w/ Digital Key System Tester Connection Condition Specified Condition I222-16 (CLG1) - L22-4 (ANT1) Always Below 1 Ω I222-15 (CG1B) - L22-6 (ANT2) Always Below 1 Ω I222-16 (CLG1) or L22-4 (ANT1) - Other terminals and body ground Always 10 kΩ or higher I222-15 (CG1B) or L22-6 (ANT2) - Other terminals and body ground Always 10 kΩ or higher
Reconnect the I222 certification ECU (smart key ECU assembly) connector.
- Result:
Proceed to OK NG
OK
NG
| *A | w/o Digital Key System |
| *B | w/ Digital Key System |
| *a | Front view of wire harness connector
(to Front Door Outside Handle Assembly LH) |
| *b | Waveform 1 |
Using an oscilloscope, check the waveform.
- OK:
Tester Connection Condition Tool Setting Specified Condition L19-4 (ANT1) - L19-6 (ANT2)*2
L22-4 (ANT1) - L22-6 (ANT2)*3Procedure:
1.Ignition switch off
2.All doors closed
3.Electrical key transmitter sub-assembly not inside vehicle
4.All doors locked through wireless operation
(electrical key transmitter sub-assembly brought outside detection area*1)
5 V/DIV., 500 ms./DIV. Pulse generation
(See waveform 1)
*1: For details about the entry function detection area, refer to Operation Check.
*2: w/o Digital Key System
*3: w/ Digital Key System
- Result:
Proceed to OK NG
OK
NG
Replace the front door outside handle assembly LH with a new one or the front door outside handle assembly RH if it is functioning properly.
- Result:
Proceed to NEXT
NEXT
Check that the function operates normally.
- Result:
Result Proceed to Entry function operates normally A Entry function does not operate normally B
A
B
Check the following antenna in key diagnostic mode.
- Body Electrical > Entry&Start > Utility
-
Tester Display Communication Check(Key Diag Mode) - 50005 440 2541
Select either channel 1 or channel 2 and perform key diagnostic mode inspection for each channel.
| *1 | Electrical Key Transmitter Sub-assembly |
| *a | 0.7 to 1 m (2.30 to 3.28 ft.) |
Check the electrical key antenna (for driver door):
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 LH, check that the 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.
- Result:
Result Proceed to Buzzer does not sound A Buzzer sounds B
A
B
Disconnect the I222 certification ECU (smart key ECU assembly) connector.
Disconnect the L19*1 or L22*2 front door outside handle assembly LH connector.
*1: w/o Digital Key System
*2: w/ Digital Key System
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
w/o Digital Key System Tester Connection Condition Specified Condition I222-16 (CLG1) - L19-4 (ANT1) Always Below 1 Ω I222-15 (CG1B) - L19-6 (ANT2) Always Below 1 Ω I222-16 (CLG1) or L19-4 (ANT1) - Other terminals and body ground Always 10 kΩ or higher I222-15 (CG1B) or L19-6 (ANT2) - Other terminals and body ground Always 10 kΩ or higher
- Standard Resistance:
w/ Digital Key System Tester Connection Condition Specified Condition I222-16 (CLG1) - L22-4 (ANT1) Always Below 1 Ω I222-15 (CG1B) - L22-6 (ANT2) Always Below 1 Ω I222-16 (CLG1) or L22-4 (ANT1) - Other terminals and body ground Always 10 kΩ or higher I222-15 (CG1B) or L22-6 (ANT2) - Other terminals and body ground Always 10 kΩ or higher
Reconnect the I222 certification ECU (smart key ECU assembly) connector.
- Result:
Proceed to OK NG
OK
NG
| *A | w/o Digital Key System |
| *B | w/ Digital Key System |
| *a | Front view of wire harness connector
(to Front Door Outside Handle Assembly LH) |
| *b | Waveform 1 |
Using an oscilloscope, check the waveform.
- OK:
Tester Connection Condition Tool Setting Specified Condition L19-4 (ANT1) - L19-6 (ANT2)*2
L22-4 (ANT1) - L22-6 (ANT2)*3Procedure:
1.Ignition switch off
2.All doors closed
3.Electrical key transmitter sub-assembly not inside vehicle
4.All doors locked through wireless operation
(electrical key transmitter sub-assembly brought outside detection area*1)
5 V/DIV., 500 ms./DIV. Pulse generation
(See waveform 1)
*1: For details about the entry function detection area, refer to Operation Check.
*2: w/o Digital Key System
*3: w/ Digital Key System
- Result:
Proceed to OK NG
OK
NG
Connect all connectors and check that the function operates normally.
- Result:
Result Proceed to Entry function does not operate normally A Entry function operates normally B
A
B