THEFT DETERRENT / KEYLESS ENTRY SMART ENTRY AND START SYSTEM(for Entry Function, Gasoline Model) Driver Side Door Entry Unlock Function does not Operate
DESCRIPTION
If the entry unlock function does not operate for the driver door only, but the entry lock function operates, the request code is being transmitted properly from the driver door. In this case, there may be a problem related to the unlock sensor (connection between the certification ECU (smart key ECU assembly) and front door outside handle assembly (for driver door)).
WIRING DIAGRAM
CAUTION / NOTICE / HINT
- NOTICE:
- ·
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.
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 entry unlock function.
| *a | Unlock Sensor (Backside) |
The illustrations shown are examples only.
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 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 (for driver door) 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).
- Result:
Result Proceed to Entry function does not operate normally A Entry function operates normally B
A
B
Read the Data List according to the display on the GTS.
- Body Electrical > Main Body > Data List
-
Tester Display Measurement Item Range Normal Condition Diagnostic Note FL Door Lock Position Switch Status Front door LH unlock detection switch signal Lock or Unlock Lock: Front door LH locked
Unlock: Front door LH unlocked-
- Body Electrical > Main Body > Data List
-
Tester Display FL Door Lock Position Switch Status - 50003 449 21
- OK:
The GTS display changes correctly in response to the lock/unlock operation of the driver door.
- Result:
Proceed to OK NG
OK
NG
| *a | Unlock Sensor (Backside) |
The illustrations shown are examples only.
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 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 (for driver door) for 2 seconds or more.*
*: Perform this step 3 seconds or more after performing step (b).
- 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 (for driver door).
- Result:
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.
- Standard Resistance:
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.
- Result:
Proceed to OK NG
OK
NG
| *a | Unlock Sensor (Backside) |
The illustrations shown are examples only.
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 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 (for driver door) for 2 seconds or more.*
*: Perform this step 3 seconds or more after performing step (b).
- 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 (for driver door).
- Result:
Proceed to OK NG
OK
NG