If the entry lock function does not operate for the driver door only, but the entry unlock function operates, the request code is being transmitted properly from the driver door. In this case, there may be a problem related to the lock sensor (connection between the certification ECU (smart key ECU assembly) and front door outside handle assembly (for driver door)).
When using the GTS with the ignition switch off, perform lock and unlock operations using the door control switch of the multiplex network master switch assembly at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins, and then select the vehicle model manually.
Then select Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start (CAN). While using the GTS, periodically perform lock and unlock operations using the door control switch of the multiplex network master switch assembly 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.
Check that there are no electrical key transmitter sub-assemblies in the vehicle.
After repair, confirm that no DTCs are output.
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.
Door locks operate normally.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Check the entry lock function.
| *a | Lock Sensor |
The illustrations shown are examples only.
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 and approximately 0.3 m (0.984 ft.) from the driver door.
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.
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 | Proceed to |
|---|---|
| Entry function does not operate normally | A |
| Entry function operates normally | B |
A
B
| *a | Lock Sensor |
The illustrations shown are examples only.
Open and close the driver door.
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 driver door.
Read the Data List according to the display on the GTS.
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.
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.
| 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. |
| Tester Display |
|---|
| Driver Side Lock Sensor |
The GTS display changes correctly in response to the operation of the front door outside handle assembly (for driver door).
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the E52 certification ECU (smart key ECU assembly) connector.
Disconnect the G8 front door outside handle assembly (for driver door) connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
|
Click Location & Routing(E52,G8)Location & Routingewd_type=routing;type=c,c;code=E52,G8 Click Connector(E52)Instrument Panel>Instrument Panel Wire / Telephone Computer Wire>Smart Key ECU Assemblyewd_type=component;type=c;code=E52;pinno=16,15 Click Connector(G8)Body>Front Door Wire RH / Front Door Wire LH>Electrical Key Antenna (Front Door Outside Handle Assembly LH)ewd_type=component;type=c;code=G8;pinno=4,6 |
||
| E52-16 (CLG1) - G8-4 (ANTE1) | Always | Below 1 Ω |
| E52-15 (CG1B) - G8-6 (ANTB1) | Always | Below 1 Ω |
| E52-16 (CLG1) or G8-4 (ANTE1) - Other terminals and body ground | Always | 10 kΩ or higher |
| E52-15 (CG1B) or G8-6 (ANTB1) - Other terminals and body ground | Always | 10 kΩ or higher |
Reconnect the G8 front door outside handle assembly (for driver door) connector.
Reconnect the E52 certification ECU (smart key ECU assembly) connector.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| *a | Lock Sensor |
The illustrations shown are examples only.
Open and close the driver door.
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 driver door.
Read the Data List according to the display on the GTS.
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.
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.
| 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. |
| Tester Display |
|---|
| Driver Side Lock Sensor |
The GTS display changes correctly in response to the operation of the front door outside handle assembly (for driver door).
| Proceed to |
|---|
| OK |
| NG |
OK
NG